Index ID	Brand	Model	Chassis	Keyword	Symptom	Cure
MGA 1	MGA	VS-4561	VZ1B	Audio	BUZZ IN AUDIO,CHANGES WITH BRIGHTNESS	1. BUZZ IN THE AUDIO,THAT CHANGES WITH BRIGHTNESS CHANGE.CHECK THE VALUE OF R6G6 (6.8 OHM 1W) LOCATED ON THE RED CRT-PCB
MGA 2	MGA	WS65903	V15	Audio	DISTORTED AUDIO RIGHT AND/OR LEFT	1. FOR DISTORTED RIGHT CHANNEL AUDIO CHECK R3018 AND FOR LEFT CHECK R3019, BOTH ARE 2.2 OHM 2 W, ON THE AUDIO/GUIDE PCB.
MGA 3	MGA	VS-4561	VZ1B	Audio	BUZZ IN AUDIO,CHANGES WITH BRIGHTNESS	1. BUZZ IN THE AUDIO,THAT CHANGES WITH BRIGHTNESS CHANGE.CHECK THE VALUE OF R6G6 (6.8 OHM 1W) LOCATED ON THE RED CRT-PCB
MGA 4	MGA	VS50800	VZ6	Audio	DISTORTED AUDIO RIGHT AND/OR LEFT	. FOR DISTORTED RIGHT CHANNEL AUDIO CHECK R3018 AND FOR LEFT CHECK R3019, BOTH ARE 2.2 OHM 2 W, ON THE AUDIO/GUIDE PCB
MGA 5	MGA	CS35601	YA1	Audio	POP AT PWR ON/OFF	1. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-A/V FOIL SIDE: A) ADD C3073 (100UF 16V) (-) TO J-56 AND (+) TO BASE OF Q3009. B) ADD C3074 (100UF 16V) (-) TO J-56 AND (+) TO BASE OF Q3008. C) ADD 2.7K 1/4W RESISTORS IN PARALLEL WITH R3053, R3054 AND R3087. D) C
MGA 6	MGA	CK35804	YA2B	Audio	NO AUDIO	1. MAY BE INTERMITTENT, CHECK C3X09 BETWEEN PIN 9 AND 10 OF IC3X01 AND C3R09 OFF BETWEEN PIN 9 AND 10 OF IC3R01, BOTH ARE 470 UFD 50 V
MGA 7	MGA	CS35601	YA1	Audio	POP AT PWR ON/OFF	1. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-A/V FOIL SIDE: A) ADD C3073 (100UF 16V) (-) TO J-56 AND (+) TO BASE OF Q3009. B) ADD C3074 (100UF 16V) (-) TO J-56 AND (+) TO BASE OF Q3008. C) ADD 2.7K 1/4W RESISTORS IN PARALLEL WITH R3053, R3054 AND R3087. D) C
MGA 8	MGA	CK35804	YA2B	Audio	NO AUDIO	1. MAY BE INTERMITTENT, CHECK C3X09 BETWEEN PIN 9 AND 10 OF IC3X01 AND C3R09 OFF BETWEEN PIN 9 AND 10 OF IC3R01, BOTH ARE 470 UFD 50 V
MGA 9	MGA	CS20301	XM1	Audio	INT POP AT CHANNEL CHANGE	1. POP OCCURS THROUGH INTERNAL SPEAKERS ONLY. CHANGE R3F0 (470 OHM 1/4W) TO 820 OHM 1/4W. LOCATED ON PCB-MAIN AT IC3A2 PIN 3.
MGA 10	MGA	CS27MX1	XM	Audio	INT.DISTORTED LEFT AUDIO	1. CHECK FOR CONTINUITY OF THE GROUNDING POINTS ON THE HEAT SINK OF IC3A2 LOCATED ON THE MAIN-PCB.
MGA 11	MGA	CS20RX1	XL	Audio	LOW AUDIO	1. AUDIO OUPUT LEVEL IMPROVEMENT: CHANGE THE VALUE OF THE FOLLOWING COMPONENTS AS INDICATED: ORIGINAL VALUE NEW VALUE R724 3.9K 1K R773 15K 6.8K R787 12K 22K R304 6.8K 5.6K ADD A 120K RESISTOR ON THE FOIL SIDE OF PCB FROM THE POSITIVE SIDE OF C708 TO R787
MGA 12	MGA	VS4543	VZ3	Chroma	NO COLOR-PARENTAL LOCK	1. NO COLOR WHEN PARENTAL LOCK IS TURNED ON OR OFF. REPLACE R7005 WITH A 68KOHM 1/4W RESISTOR.
MGA 13	MGA	VS4543	VZ3	Chroma	NO COLOR-PARENTAL LOCK	1. NO COLOR WHEN PARENTAL LOCK IS TURNED ON OR OFF. REPLACE R7005 WITH A 68KOHM 1/4W RESISTOR.
MGA 14	MGA	VS45501	VZ4	Chroma	INTERMITTANT COLOR OR COLOR SYNC	1. CHANGE THE VALUE OF C230 FROM 22 PF TO 15 PF. LOCATED IN THE COLOR OSC CIRCUIT OFF PIN 1 OF IC200 ON THE SIGNAL PCB
MGA 15	MGA	VS45605	VZ7	Chroma	NO COLOR	1. CHECK FOR OPEN L2C60 PART # 325C146030 ON THE SIGNAL PCB
MGA 16	MGA	VS45607	VZ8	Chroma	NO COLOR	1. CHECK FOR OPEN L2C60 PART # 325C146030 ON THE SIGNAL PCB
MGA 17	MGA	CS20301	XM1	Chroma	COLOR FADES + TINT CHANGE	1. COLOR FADES AND TINT SHIFTS AFTER 20 MINS.CHECK D5X1 AT PIN3 OF IC6E2 ON THE MAIN-PCB. PT#264P045040
MGA 18	MGA	CS27MX1	XM	Chroma	COLOR FADES + TINT CHANGE	1. COLOR FADES AND TINT SHIFTS AFTER 20 MINS.CHECK D5X1 AT PIN3 OF IC6E2 ON THE MAIN-PCB. PT#264P045040
MGA 19	MGA	CS27MX1	XM	Chroma	WEAK/UNSTABLE CHROMA	1. PULL PIP PCB FROM SET, JUMP OUT 'VP' CONNECTOR WITH .1UF CAP FROM PIN 7 TO PIN 9 AND .1UF CAP FROM PIN 11 TO PIN 5.IF MAIN PIX RETURNS TO NORMAL, CHECK ALL ELECTROLYTIC CAPS AND TRACES CONNECTING TO THESE CAPS FOR CONTINUITY
MGA 20	MGA	CS27MX1	XM	Chroma	NO COLOR	1. CHECK Q700 PART # 260P632010 OFF OF PIN 30 OF IC201 ON THE MAIN PCB.
MGA 21	MGA	CS20RX1	XL	Chroma	NO COLOR	1. CHECK THE VALUE OF C713 (4.7UF 50V) LOCATED ON PIN 11 OF IC701,ON THE MAIN-PCB.
MGA 22	MGA	VS40VA2	VZ1	Control Display	incorrect1. UNIT EXHIBITS SEVERAL DISTINCT SYMPTOMS: A) DURING 'MUTE' OSD INDICATES 'MUTING'. B) NO FUNCTION/DISPLAY FOR 'EXTRA BASS'. C) CANNOT ACCESS 'EXTRA BASS' FEATURE. aud displays	IF ANY OR ALL OF THESE SYMPTOMS APPEAR AFTER REPLACEMENT OF PCB-FS CONFIRM IC701 SUFFIX IS -561SP. IF SUFFIX IS -566SP, REPLACE WITH CORRECT PART NUMBER 274P200010.
MGA 23	MGA	VS40VA2	VZ1	Control Display	no osd	1. CHECK FOR 5VPP VERTICAL PULSE AT COLLECTOR OF Q2P1. IF LOW/MISSING, SUSPECT LEAKY/SHORTED CAPACITOR C2S4 (330PF 50V). LOCATED ON PCB-SIGNAL ADJOINING COLLECTOR OF Q2P1.
MGA 24	MGA	VS40VA2	VZ1	Control Display	no  osd function control	1. OTHER SYMPTOMS MAY INCLUDE ROLLING/PULSATING THROUGH PIX, NO PIP WINDOW DISPLAY, RANDOM DISTORTION IN PIX. SUSPECT DEFECTIVE IC701. LOCATED ON PCB-UCOM. PT# 274P200010 1. SUSPECT DEFECTIVE D/A CONVERTER IC703. LOCATED ON PCB-UCOM. PT# 272P758010
MGA 25	MGA	VS40VA2	VZ1	Control Display	no remote operations	1. CHECK R758 (100 OHM 1/4W) FOR RAISED VALUE/OPEN. LOCATED ON PCB-FS AT IC701 PIN 5.
MGA 26	MGA	WS65903	V15	control display	SHADOW TO THE RIGHT OF OSD	1. REPLACE R771 WITH A 560 OHM 1/4, OFF Q712 EMITTER ON THE SIGNAL PCB
MGA 27	MGA	WS65903	V15	control display	IMPROPER GUIDE PLUS OPERATION	1. CIRCUIT CHANGE FOR IMPROPER GUIDE PLUS OPERATION, REMOVE R241 FROM THE SIGNAL PCB AND ADD A 100 OHM 1/4 W RESISTER FROM CONNECTOR "GC" PIN 6 TO THE "SUB VIDEO OUT" PIN OF TUNER TU102.
MGA 28	MGA	WS65903	V15	control display	BLUE SHADOW ON THE RIGHT OF OSD & CCD	1. REPLACE R771 WITH A 560 OHM 1/4, OFF Q712 EMITTER ON THE SIGNAL PCB.
MGA 29	MGA	VS50805	V16	control display	INCORRECT A/V SWITCHING OF M-VR700 & M-VR900	1. IC701 MAY BE INCORRECTLY PROGRAMMED AND WILL NOT ACT CORRECTLY. WHEN THE TV SELECTS INPUT 3 DVD, THE TV SENDS AN INCORRECT SIGNAL AND TELLS THE AV RECEIVER TO SWITCH TO THE CABLE/DBS INPUT INSTEAD OF DVD INPUT. REPLACE IC701 PART # 275P452030. ON THE SIGNAL PCB
MGA 30	MGA	VS40VA2	VZ1	Control Display	incorrect1. UNIT EXHIBITS SEVERAL DISTINCT SYMPTOMS: A) DURING 'MUTE' OSD INDICATES 'MUTING'. B) NO FUNCTION/DISPLAY FOR 'EXTRA BASS'. C) CANNOT ACCESS 'EXTRA BASS' FEATURE. aud displays	IF ANY OR ALL OF THESE SYMPTOMS APPEAR AFTER REPLACEMENT OF PCB-FS CONFIRM IC701 SUFFIX IS -561SP. IF SUFFIX IS -566SP, REPLACE WITH CORRECT PART NUMBER 274P200010.
MGA 31	MGA	VS40VA2	VZ1	Control Display	no osd	1. CHECK FOR 5VPP VERTICAL PULSE AT COLLECTOR OF Q2P1. IF LOW/MISSING, SUSPECT LEAKY/SHORTED CAPACITOR C2S4 (330PF 50V). LOCATED ON PCB-SIGNAL ADJOINING COLLECTOR OF Q2P1.
MGA 32	MGA	VS40VA2	VZ1	Control Display	no  osd function control	1. OTHER SYMPTOMS MAY INCLUDE ROLLING/PULSATING THROUGH PIX, NO PIP WINDOW DISPLAY, RANDOM DISTORTION IN PIX. SUSPECT DEFECTIVE IC701. LOCATED ON PCB-UCOM. PT# 274P200010 1. SUSPECT DEFECTIVE D/A CONVERTER IC703. LOCATED ON PCB-UCOM. PT# 272P758010
MGA 33	MGA	VS40VA2	VZ1	Control Display	no remote operations	1. CHECK R758 (100 OHM 1/4W) FOR RAISED VALUE/OPEN. LOCATED ON PCB-FS AT IC701 PIN 5.
MGA 34	MGA	VS45501	VZ4	Control Display	NO OSD	1. CHECK D216 PART # 264P483070 AND D217 PART # 264P502020 ON THE SIGNAL PCB.
MGA 35	MGA	VS45603	VZ5	Control Display	LOSES CUSTOMER SETTINGS WHEN UNPLUGGED	1. MAY ALSO GO TO HOME THEATER WHEN UNPLUGGED. E2 RESET IS NEEDED. ACCESS THE OPTION MENU BY PRESSING "MENU 1, 3, 7, 0", USE THE ADJUST BUTTON TO SELECT "E2 RESET" AND PRESS "QV". THIS IS ALSO NECESSARY AFTER REPLACEMENT OF THE EEPROM, IC701.
MGA 36	MGA	VS50800	VZ6	Control Display	SHADOW TO THE RIGHT OF OSD	1. REPLACE R771 WITH A 560 OHM 1/4, OFF Q712 EMITTER ON THE SIGNAL PCB.
MGA 37	MGA	VS50800	VZ6	Control Display	IMPROPER GUIDE PLUS OPERATION	1. CIRCUIT CHANGE FOR IMPROPER GUIDE PLUS OPERATION, REMOVE R241 FROM THE SIGNAL PCB AND ADD A 100 OHM 1/4 W RESISTER FROM CONNECTOR "GC" PIN 6 TO THE "SUB VIDEO OUT" PIN OF TUNER TU102.
MGA 38	MGA	VS-4571	V13	control display	cust conv moves incorrect	1. CUSTOMER CONVERGENCE CONTROL MOVES IN THE OPPOSITE DIRECTION,MAY OCCUR AFTER INITIALIZING SET.CHECK 'OPTION MENU' PER SERVICE MANUAL,FOR 'FINAL SETTINGS'.THIS SHOULD BE SET TO FIG 2.THIS MUST BE DONE AFTER INITIALIZING SET NOT,BEFORE AS STATED IN THE SERVICE MANUAL.
MGA 39	MGA	VS-4571	V13	control display	no green is display	1. CHECK Q6A5 TO BE SHORTED OR LEAKY,PT#260P571010 AND IS LOCATED ON THE GREEN CRT-PCB.
MGA 40	MGA	VS-4571	V13	control display	processor lockup	1. ON FS-PCB FOIL SIDE REMOVE R746 (R-CHIP 100 OHM) AND ON COMPONENT SIDE OF PCB ADD JUMPER WIRE TO LOCATION J2.
MGA 41	MGA	VS-5073	V13B	control display	cust conv moves incorrectly	1. CUSTOMER CONVERGENCE CONTROL MOVES IN THE OPPOSITE DIRECTION,MAY OCCUR AFTER INITIALIZING SET.CHECK 'OPTION MENU' PER SERVICE MANUAL,FOR 'FINAL SETTINGS'.THIS SHOULD BE SET TO FIG 2.THIS MUST BE DONE AFTER INITIALIZING SET NOT,BEFORE AS STATED IN THE SERVICE MANUAL.
MGA 42	MGA	VS-5073	V13B	control display	no green in display	1. CHECK Q6A5 TO BE SHORTED OR LEAKY,PT#260P571010 AND IS LOCATED ON THE GREEN CRT-PCB.
MGA 43	MGA	TS-5087	V14	control display	accessing home theatre	1. TO ACCESS THE HOME THEATER OPTION.GO INTO THE SERVICE OPTION MENU USING 'MENU' THEN '2358',AND CHANGE THE ANTENNA NO. TO ZERO.EXIT THE MENU AND UNIT WILL BE IN HOME THEATER.
MGA 44	MGA	Ts-5087	V14	control display	can't access service menu	1. SERVICE MENU IS NOT ACCESSABLE.THIS IS DUE TO THE ACTIVATION OF THE ADVANCED ICON MENU IN THE CUSTOMER MENU.THIS CAN BE DEACTIVATED BY PRESS THE 'MENU' BUTTON ON THE REMOTE AND HIGHLIGHTING THE TOP ICON IN THE MENU AND PRESS 'ENTER'.THIS WILL THEN GIVE YOU THE OPTION OF EITHER A STANDARD MENU OR ADVANCED MENU,SELECT STANDARD
MGA 45	MGA	TS-5087	V14	control display	INCORRECT A/V & S.S FUNC	1. INCORRECT ACTIVE A/V AND STARSIGHT FUNCTIONS.CHECK Q718 TO BE EITHER A (DTA124-EK OR UN2112),LOCATED ON THE FS-PCB.IF INCORRECT REPLACE IT WITH PT#260P806010.
MGA 46	MGA	CK35804	YA2B	Control Display	JITTER ON STARSIGHT MENU	1. PRESS THE MENU BUTTON FOLLOWED BY 2-3-5-6. USE THE LFT AND RT ADJ BUTTONS TO CHANGE THE HORIZONTAL POSITION UNTIL THE JITTER DISAPPEARS.
MGA 47	MGA	CK35804	YA2B	Control Display	ANT-B TUNES ONLY ONE CH	1. THE CABLE BOX SETTING IN THE CUSTOMER MENU NEEDS TO BE SET TO NO CABLE BOX, INSTEAD OF A CHANNEL SETTING, IF THE STARSIGHT WAS SET UP WITH A CABLE BOX CONTROL CHANNEL SELECTED, YOU MAY NOT BE ABLE TO CHANGE SETTING WITHOUT FIRST DEAUTHORISING STARSIGHT
MGA 48	MGA	CS35503	YA0	Control Display	INTERMITTENT POWER UP	1. CHECK Q901 AND Q916 TO BE SHORTED OR LEAKY.IF ONE IS DEFECTIVE REPLACE BOTH TRANSISTORS.LOCATED ON THE DEFL.-PCB. PT#260P422010.
MGA 49	MGA	CS35503	YA0	Control Display	INT. NO VIDEO/NO OSD	1. INTERMITTENT NO VIDEO AND NO OSD MAY ALSO SHUTDOWN.CHECK FOR 5VPP OF DIGITAL INFORMATION ON PIN 6 OF IC702,IF LOW OR MISSING.CHECK FOR LEAKY D7Q1 ON PIN 19 OF IC2A01 ON THE A/V-PCB. PT#264P502030
MGA 50	MGA	CS20301	XM1	Control Display	LP MODE INOP W/EXT INPUTS	1. WILL RESUME OPERATION AFTER POWER LOSS ONLY WITH TUNER INPUT. REPLACE IC701 WITH NEW VERSION. PT# 274P157060 UPD17008CW-526
MGA 51	MGA	CS27MX1	XM	Control Display	NO POWER UP	1. SUSPECT LEAKY D702. LOCATED ON PCB-MAIN ADJOINING IC701 PIN 64. PT# 264P045040 1S2471
MGA 52	MGA	CS27MX1	XM	Control Display	SHUTS DOWN WTH. ACT. MENU	1. SHUTS DOWN WHEN MENU IS ACTIVATED.CHECK FOR OPEN D210,ON PIN 8 OF THE FLYBACK. LOCATED ON THE MAIN-PCB. PT#264P045040
MGA 53	MGA	CS27MX1	XM	Control Display	TINT ADJUSTMENT	1. WITH REMOTE CONTROL SELECT MODE THEN ENTER 007 TO ACCESS PIP ADJUSTMENT MENU. THEN USE ADJUST UP/DOWN TO CHANGE, WHEN DONE USE MODE TO RETURN TO NORMAL OPERATIONS.
MGA 54	MGA	CS27MX1	XM	Control Display	PIP TINT ADJUSTMENT	1. WITH REMOTE CONTROL SELECT MODE THEN ENTER 007 TO ACCESS PIP ADJUSTMENT MENU. THEN USE ADJUST UP/DOWN TO CHANGE, WHEN DONE USE MODE TO RETURN TO NORMAL OPERATIONS.
MGA 55	MGA	CS20RX1	XL	Control Display	MENU TOO HIGH CAN'T ADJ.	1. MENU SCREEN IS TOO LARGE:REPLACE C405 (1UF 25V) LOCATED AT PIN 6 OF IC401 ON THE MAIN-PCB.
MGA 56	MGA	CS20RX1	XL	Control Display	REDUCED BRIGHTNESS CONT.	1. REDUCED BRIGHTNESS CONTROL:CHECK FOR 2.2V ON PIN 35 OF IC101 IF IT IS LOW OR MISSING,CHANGE D204(3V 1/4W) ZENER ON THE MAIN-PCB.
MGA 57	MGA	CS20RX1	XL	Control Display	SHUTDOWN AT CH. CHANGE	1. CHECK THE VALUE OF C515 (10UF 100V) ON PIN 5 OF THE FBT.LOCATED ON THE MAIN-PCB.
MGA 58	MGA	VS-4561	VZ1B	Convergence	RED VERT. LINE ON RIGHT.	1. SNOWY PIX;RED VERT. LINE ON THE RIGHT,CHANGE C8H0 (3.3UF 25V NP), ON CONVERGENCE PCB.
MGA 59	MGA	VS-4541	VZ2	Convergence	BLUE BOW ON LEFT & RIGHT	1. CONVERGENCE WILL NOT ADJUST PROPERLY.CHECK FOR LEAKY OR SHORTED Q8F04 PART # 260P651010 AND Q8F06 PART # 260P652010. LOCATED ON THE SIGNAL-PCB. 2. CHECK D8F00 AND D8F01 FOR LEAKAGE IN THE 24/34 V SWITCH CIRCUITS ON THE SIGNAL PCB PART # 264P045040 3. C
MGA 60	MGA	VS-4541	VZ2	Convergence	BLUE CONV. JITTER	1. JITTER OCCURS MAINLY IN THE CORNERS.CHECK FOR SHORTED Q8F02,LOCATED ON THE SIGNAL-PCB. PT#260P560040
MGA 61	MGA	VS-4541	VZ2	Convergence	CONVERGENCE DISTORTION	1. CHECK FOR LEAKY OR SHORTED Q8F04 PART # 260P651010 AND Q8F06 PART # 260P652010. LOCATED ON THE SIGNAL-PCB. 2. CHECK D8F00 AND D8F01 FOR LEAKAGE IN THE 24/34 V SWITCH CIRCUITS ON THE SIGNAL PCB PART # 264P045040 3. CHECK FOR SHORTED OR LEAKY Q8F02 (PT#2
MGA 62	MGA	WS65903	V15	Convergence	CONVERGENCE DISTORTION	1. CHECK CONNECTOR "VD" FOR PROPER CONNECTION, BETWEEN THE CONVERGENCE PCB AND POWER PCB.
MGA 63	MGA	VS-4561	VZ1B	Convergence	RED VERT. LINE ON RIGHT.	1. SNOWY PIX;RED VERT. LINE ON THE RIGHT,CHANGE C8H0 (3.3UF 25V NP), ON CONVERGENCE PCB.
MGA 64	MGA	VS-4541	VZ2	Convergence	BLUE BOW ON LEFT & RIGHT	1. CONVERGENCE WILL NOT ADJUST PROPERLY.CHECK FOR LEAKY OR SHORTED Q8F04 PART # 260P651010 AND Q8F06 PART # 260P652010. LOCATED ON THE SIGNAL-PCB. 2. CHECK D8F00 AND D8F01 FOR LEAKAGE IN THE 24/34 V SWITCH CIRCUITS ON THE SIGNAL PCB PART # 264P045040 3. C
MGA 65	MGA	VS-4541	VZ2	Convergence	BLUE CONV. JITTER	1. JITTER OCCURS MAINLY IN THE CORNERS.CHECK FOR SHORTED Q8F02,LOCATED ON THE SIGNAL-PCB. PT#260P560040
MGA 66	MGA	VS-4541	VZ2	Convergence	CONVERGENCE DISTORTION	1. CHECK FOR LEAKY OR SHORTED Q8F04 PART # 260P651010 AND Q8F06 PART # 260P652010. LOCATED ON THE SIGNAL-PCB. 2. CHECK D8F00 AND D8F01 FOR LEAKAGE IN THE 24/34 V SWITCH CIRCUITS ON THE SIGNAL PCB PART # 264P045040 3. CHECK FOR SHORTED OR LEAKY Q8F02 (PT#2
MGA 67	MGA	VS45501	VZ4	Convergence	CONVERGENCE DISTORTION	1. CHECK FOR -8 VDC TO THE CONVERGENCE PCB AT "VM" CONNECTOR PIN 3, IF LOW, MISSING OR NOISY, CHECK C936 (1000 UFD 16 V) AND C935 (100 UFD 16 V) ON THE MAIN PCB. 2. CHECK C924 (1000 UFD 36V) AND C925 (100 UFD 50 V) IN THE -24 VOLT SUPPLY CIRCUIT ON THE MA
MGA 68	MGA	VS45603	VZ5	Convergence	CONVERGENCE RESET	1. CONVERGENCE RESET CAN BE DONE SEPARATELY FROM E2RESET. (THIS IS NOT IN THE SERVICE MANUAL). ACCESS THE FINE CONVERGENCE MODE BY PRESSING MENU 23594 THEN PRESS 8970 TO RESET GREEN, PRESS THE AUDIO BUTTON TO CHANGE TO RED AND PRESS 8970 AGAIN TO RESET RE
MGA 69	MGA	VS45603	VZ5	Convergence	CONVERGENCE EEPROM INTERMITTENTLY RESETS	1. CHECK FOR PROPER GROUND CONNECTIONS TO THE SHIELD ON THE CONVERGENCE GENERATOR PCB
MGA 70	MGA	VS45603	VZ5	Convergence	CONVERGENCE DISTORTION	1. CHECK CONNECTOR "VD" FOR PROPER CONNECTION BETWEEN THE CONVERGENCE PCB AND CONVERGENCE GENERATOR PCB. 2. SEVERE CONVERGENCE DISTORTION BUT CONVERGENCE WILL ADJUST. THE CONVERGENCE EEPROM DATA MAY BE CORRUPT, DO CONVERGENCE RESET AND REALIGN THE CONVERG
MGA 71	MGA	VS45603	VZ5	Convergence	INTERNAL CROSS HATCH JITTER	1. INTERNAL CROSS HATCH JITTER WHILE ADJUSTING. CHANGE THE VALUE OF R8C52 FROM 1 K TO 22 K ON THE CONV-AUDIO PCB.
MGA 72	MGA	VS50800	VZ6	Convergence	BLUE SHADOW ON THE RIGHT OF OSD & CCD	1. REPLACE R771 WITH A 560 OHM 1/4, OFF Q712 EMITTER ON THE SIGNAL PCB.
MGA 73	MGA	VS50800	VZ6	Convergence	CONVERGENCE DISTORTION	1. CHECK CONNECTOR "VD" FOR PROPER CONNECTION, BETWEEN THE CONVERGENCE PCB AND POWER PCB.
MGA 74	MGA	VS45605	VZ7	Convergence	CONVERGENCE RESET	1. E2RESET DOES NOT RESET THE CONVERGENCE. THE CONVERGENCE CAN BE RESET BY PRESSING "MENU 125968970"
MGA 75	MGA	VS45607	VZ8	Convergence	CONVERGENCE RESET	1. E2RESET DOES NOT RESET THE CONVERGENCE. THE CONVERGENCE CAN BE RESET BY PRESSING "MENU 125968970"
MGA 76	MGA	WT42311	VK20	Convergence	DOESN'T RETAIN CONVERGENCE SETTINGS	1. RESET THE CONVERGENCE EEPROM, PRESS "MENU 2259" TO ENTER THE CONVERGENCE MENU THEN PRESS "8970" TO RESET.
MGA 77	MGA	VS50111	V20	Convergence	DOESN'T RETAIN CONVERGENCE SETTINGS	1. RESET THE CONVERGENCE EEPROM, PRESS "MENU 2259" TO ENTER THE CONVERGENCE MENU THEN PRESS "8970" TO RESET
MGA 78	MGA	VS-4571	V13	convergence	no video/conv control	1. NO VIDEO OR CUSTOMER CONVERGENCE CONTROL. MAY HAVE OCCURED AFTER REPORT OF SET ARCING. SUSPECT DEFECTIVE IC2004 (D/A CONV). LOCATED ON PCB-SIGNAL. PT# 272P758010
MGA 79	MGA	TS-50811	V14B	convergence	convergence distortion	1. CONVERGENCE WILL NOT ADJUST PROPERLY.CHECK FOR LEAKY OR SHORTED Q8F04 PART # 260P651010 AND Q8F06 PART # 260P652010. LOCATED ON THE MAIN-PCB. 2. CHECK D8F00 AND D8F01 FOR LEAKAGE IN THE 24/34 V SWITCH CIRCUITS ON THE MAIN PCB PART # 264P045040 3. CHECK FOR SHORTED OR LEAKY Q8F02 (PT#260P560040) AND Q8F03 (PT# 260P386010).LOCATED ON THE MAIN-PCB.
MGA 80	MGA	TS-5087	V14	convergence	no convergence or pcc control	1. NO CONVERGENCE OR PCC. CONTROL,CHECK FOR +5V ON PIN (54) OF IC4A01 AND -5V ON PIN (17) IF PRESENT,CHECK FOR 5V P-P OF DATA ON PIN (12) AND PIN (13) OF IC4A01.IF PRESENT MONITOR PIN (48) (PCC. OUTPUT) OF THE IC FOR A CHANGE IN THE WAVEFORM.IF THERE IS NO CHANGE REPLACE IC4A01, LOCATED ON THE CONV.-PCB. PT#270P276010.
MGA 81	MGA	TS-5087	V14	convergence	convergence distortion	1. CONVERGENCE WILL NOT ADJUST PROPERLY.CHECK FOR LEAKY OR SHORTED Q8F04 PART # 260P651010 AND Q8F06 PART # 260P652010. LOCATED ON THE MAIN-PCB. 2. CHECK D8F00 AND D8F01 FOR LEAKAGE IN THE 24/34 V SWITCH CIRCUITS ON THE MAIN PCB PART # 264P045040 3. CHECK FOR SHORTED OR LEAKY Q8F02 (PT#260P560040) AND Q8F03 (PT# 260P386010).LOCATED ON THE MAIN-PCB.
MGA 82	MGA	VS5005	V10	Dead	VS5005. Unit has not power from supply. Set will not power up.	The 130 volt line has a complete short circuit. Disconnecting from supply will allow supply to run all the secondary voltages normally. Tech had a shorted H.Out Xistor, caused by broken bias resistor in the base of the horizontal output. Replacing the Horizontal output and the bias resistor corrected the symptom.
MGA 83	MGA	CS2771		Dead	MGA CS2771R . This TV will not run. Power supply is damaged. Field tech replaced the same parts 3 times and each time it blows out the devices he just changed. This tech received this unit with a lot of hidden damage components.	I had tech disconnect all secondary loads from power supply after replacing all the shorted components in the primary. Jumping the on/off relay the set was powered up with an variac at 10 volts AC Power supply oscillation began normal operation. But at 20 Volts A.C input the power supply B+ secondary, for the 140 volts, was already at 90 vdc. At 30 volts the B+ supply was running at 140 volts. Tech needs to replace C914, & C903 in power supply. After replacing the electrolytic in the primary side of the power supply Unit ran normally.
MGA 84	MGA	WS55859	V19	Dead	NO POWER	1. CHECK FOR 12 VOLTS DC (AC-OFF DETECT) AT PIN 3 OF PC9A21 IF MISSING REPLACE PC9A21 PART # 268P058020 ON THE POWER PCB.
MGA 85	MGA	CK35804	YA2B	Digital	PIP LOOSES COLOR	1. ADD A 47PF 50V CERAMIC CAP. IN PARALLEL WITH R7001 ON THE PIP-PCB
MGA 86	MGA	CS35503	YA0	Digital	PIP LOOSES COLOR	1. ADD A 47PF 50V CERAMIC CAP. IN PARALLEL WITH R7001 ON THE PIP-PCB.
MGA 87	MGA	CK35804	YA2B	Digital	PIP LOOSES COLOR	1. ADD A 47PF 50V CERAMIC CAP. IN PARALLEL WITH R7001 ON THE PIP-PCB
MGA 88	MGA	CS35503	YA0	Digital	PIP LOOSES COLOR	1. ADD A 47PF 50V CERAMIC CAP. IN PARALLEL WITH R7001 ON THE PIP-PCB.
MGA 89	MGA	CS20301	XM1	Digital	NO PIP VIDEO	1. SUSPECT SUB-VIDEO SWITCH IC2002 (LA7956) PART # 272P394010. LOCATED ON PCB-VIDEO. USE FOLLOWING LOGIC CHART TO CONFIRM: ] LOGIC PIN ] INPUT / PIN ] 2 ] 3 ] * HIGH = 5V --------------]-----]-----] TUNER 4 ] H ] H ] ] ] ] EXT 1 6 ] L ] H ] ] ] ] EXT 2 8
MGA 90	MGA	CS27MX1	XM	Digital	NO PIP VIDEO	1. CHECK C7026, AND C7036 BOTH 4.7 UFD 35 V ON THE PIP PCB. 2. SUSPECT SUB-VIDEO SWITCH IC2002 (LA7956) PART # 272P394010. LOCATED ON PCB-VIDEO. USE FOLLOWING LOGIC CHART TO CONFIRM: LOGIC PIN INPUT PIN 2 3 * HIGH = 5V TUNER 4 H H EXT 1 6 L H EXT 2 8 H L
MGA 91	MGA	WS55807	V17	focus purity	INTERMITTENT FOCUS	1. MAY ALSO HAVE INTERMITTENT SHUTDOWN. CHECK FOR PROPER SEATING OF CONNECTIONS TO AND FROM THE HIGH VOLTAGE BLOCK.
MGA 92	MGA	WS48313	V22	high voltage	SHUTDOWN AT POWER	1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT
MGA 93	MGA	VS-4541	VZ2	High Voltage	SHUT DOWN	1. SHUT DOWN CAN BE INTERMITTENT OR AT POWER ON. CHECK FOR LEAKEY OR SHORTED Q570 PART # 260P560040 ON THE MAIN PCB.
MGA 94	MGA	VS4543	VZ3	High Voltage	INTERMITTENT SHUTDOWN	1. CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB 2. CHECK PIN 6 OFF IC5A01 FOR 22.2 VOLTS DC IF LOW CHECK D5A09, PART # 264P244030 ON THE MAIN PCB.
MGA 95	MGA	VS4543	VZ3	High Voltage	SHUTDOWN AT POWER ON	1. SHORT DETECT SHUT DOWN (PIN 15 OF IC700) CHECK FOR OPEN L902 PART # 351P070010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2. SHORT DETECT SHUTDOWN (PIN 15 OF IC700) CHECK FOR SHORTED D913 PART # 264P722010 AND OPEN Z901 PART # 283P039020 (Z905 AND Z900
MGA 96	MGA	VS4543	VZ3	High Voltage	BEAM CURRENT SHUTDOWN	1. EXCESSIVE BRIGHTNESS, CHECK FOR LEAKY Q6R1 (RED CRT PCB), Q6G1 (GREEN CRT PCB) AND/OR Q6B1 (BLUE CRT PCB). PART # 260P267020 2. NORMAL BRIGHTNESS, CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB
MGA 97	MGA	VS4543	VZ3	High Voltage	REPEAT FAILURE OF Q5A00	1. CHECK FOR SHORTED L5A00, PART # 351P138020 ON THE MAIN PCB
MGA 98	MGA	VS4543	VZ3	High Voltage	WIDTH CHANGE ON DARK TO BRIGHT SCENE CHANGE	1. CHECK Q5A08 HIGH VOLTAGE REGULATOR PART # 260P420020 ON THE MAIN PCB.
MGA 99	MGA	WS65903	V15	high voltage	NO HIGH VOLTAGE, AUDIO PRESENT	1. CHECK D564 ON THE FOIL SIDE OF THE MAIN PCB. IT SHOULD BE MOUNTED WITH THE ANODE TO THE GATE OF Q530. IF IN BACKWARD REPLACE D564 PART # 264P045050 (MAKING SURE THE ANODE IS CONNECTED TO GATE OF Q530) AND Q530 PART # 261P082010, ON THE MAIN PCB. 2. CHANGE R539 FROM 1K TO 470 OHMS, CHANGE C536 FROM 10 UF TO 22 UF, CHANGE R531 FROM 0.12 TO 0.15 OHMS, REPLACE IC500 PART # 267P143010.
MGA 100	MGA	WS65903	V15	high voltage	SHUTDOWN	1. CHECK CONNECTOR "DR" FOR PROPER CONNECTION, BETWEEN THE DEFL MINI PCB AND THE MAIN PCB.
MGA 101	MGA	WS65903	V15	high voltage	REPEAT FAILURE OF Q530	1. CHECK D564 ON THE FOIL SIDE OF THE MAIN PCB. IT SHOULD BE MOUNTED WITH THE ANODE TO THE GATE OF Q530. IF IN BACKWARD REPLACE D564 PART # 264P045050 (MAKING SURE THE ANODE IS CONNECTED TO GATE OF Q530) AND Q530 PART # 261P082010, ON THE MAIN PCB. 2. CHECK THE VALUE OF R567 56 OHM 1/4 W AND R568 470 OHM 1/4 WATT. LOCATED ON THE FOIL SIDE OF THE MAIN PCB BETWEEN PIN 1 OF IC500 AND THE GATE OF Q530.
MGA 102	MGA	WS65903	V15	high voltage	EXCESSIVE HIGH VOLTAGE	1. CHECK C5A09 AND C5A50 BOTH 33 UFD 50 V OFF OF IC5A01 ON PCB-DEFL MINI
MGA 103	MGA	VS50805	V16	high voltage	EXCESSIVE HIGH VOLTAGE	1. CHECK C5A09 AND C5A50 BOTH 33 UFD 50 V OFF OF IC5A01 ON PCB-DEFL MINI
MGA 104	MGA	WS55807	V17	high voltage	INTERMITTENT SHUTDOWN	1. SELF- DIAGNOSIS INDICATE X-RAY. MAY ALSO HAVE INTERMITTENT FOCUS. CHECK FOR PROPER SEATING OF CONNECTIONS TO AND FROM THE HIGH VOLTAGE BLOCK. 2. SELF-DIAGNOSIS INDICATE X-RAY. CHECK FOR 10 VOLTS AT PIN 3 OF IC5A02. IF LOW CHECK IC5A03 PART # 270P704010.
MGA 105	MGA	WS55807	V17	high voltage	SHUTDOWN AT POWER	1. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR PROPER SEATING OF CONNECTIONS TO AND FROM THE HIGH VOLTAGE BLOCK. 2. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR A SHORTED IC5A03 PART # 270P704010 AND AN OPEN R5A73 82K ¼ WATT OFF PIN 2 OF IC5A02 ON THE MAIN PCB. 3. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB.
MGA 106	MGA	VS-4541	VZ2	High Voltage	SHUT DOWN	1. SHUT DOWN CAN BE INTERMITTENT OR AT POWER ON. CHECK FOR LEAKEY OR SHORTED Q570 PART # 260P560040 ON THE MAIN PCB.
MGA 107	MGA	VS4543	VZ3	High Voltage	INTERMITTENT SHUTDOWN	1. CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB 2. CHECK PIN 6 OFF IC5A01 FOR 22.2 VOLTS DC IF LOW CHECK D5A09, PART # 264P244030 ON THE MAIN PCB.
MGA 108	MGA	VS4543	VZ3	High Voltage	SHUTDOWN AT POWER ON	1. SHORT DETECT SHUT DOWN (PIN 15 OF IC700) CHECK FOR OPEN L902 PART # 351P070010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2. SHORT DETECT SHUTDOWN (PIN 15 OF IC700) CHECK FOR SHORTED D913 PART # 264P722010 AND OPEN Z901 PART # 283P039020 (Z905 AND Z900
MGA 109	MGA	VS4543	VZ3	High Voltage	BEAM CURRENT SHUTDOWN	1. EXCESSIVE BRIGHTNESS, CHECK FOR LEAKY Q6R1 (RED CRT PCB), Q6G1 (GREEN CRT PCB) AND/OR Q6B1 (BLUE CRT PCB). PART # 260P267020 2. NORMAL BRIGHTNESS, CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB
MGA 110	MGA	VS4543	VZ3	High Voltage	REPEAT FAILURE OF Q5A00	1. CHECK FOR SHORTED L5A00, PART # 351P138020 ON THE MAIN PCB
MGA 111	MGA	VS4543	VZ3	High Voltage	WIDTH CHANGE ON DARK TO BRIGHT SCENE CHANGE	1. CHECK Q5A08 HIGH VOLTAGE REGULATOR PART # 260P420020 ON THE MAIN PCB.
MGA 112	MGA	VS45501	VZ4	High Voltage	SHUTDOWN AT POWER	1. SHORT DETECT SHUTDOWN (PIN 13 OF IC700) CHECK FOR OPEN L902 PART # 351P155010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2. SHORT DETECT SHUTDOWN (PIN 13 OF IC700) CHECK FOR SHORTED D913 PART # 264P722010 AND OPEN Z901 PART # 283P039020 (Z905 AND Z900 M
MGA 113	MGA	VS45501	VZ4	High Voltage	INTERMITTENT SHUTDOWN	1. CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB 2. CHECK PIN 6 OFF IC5A01 FOR 22.2 VOLTS DC IF LOW CHECK D5A09, PART # 264P244030 ON THE MAIN PCB.
MGA 114	MGA	VS45603	VZ5	High Voltage	INTERMITTENT SHUTDOWN	1. CHECK FOR 10 VDC AT PIN 5 OF IC502 OF LOW, CHECK IC503 PART # 270P704010 ON THE MAIN PCB
MGA 115	MGA	VS45603	VZ5	High Voltage	PULSING RASTER	1. CHECK FOR IMPROPER ANODE LEAD CONNECTIONS TO THE HV BLOCK. NOTE: ARCING DUE TO POOR ANODE LEAD CONNECTIONS CAN CAUSE INTERNAL DAMAGE TO THE HV BLOCK PART # 920P015010.
MGA 116	MGA	VS45603	VZ5	High Voltage	SHUTDOWN AT POWER	1. CHECK FOR 10 VDC AT PIN 5 OF IC502 OF LOW, CHECK IC503 PART # 270P704010 ON THE MAIN PCB. 2. CHECK R529 .82 OHM 1/2 WATT OFF PIN 4 OF THE FLYBACK. IF OPEN CHECK C411 2200 UFD @ 35V AND IC 451 PART # 270P064020. ON THE MAIN PCB
MGA 117	MGA	VS50800	VZ6	High Voltage	SHUTDOWN	1. CHECK CONNECTOR "DR" FOR PROPER CONNECTION, BETWEEN THE DEFL MINI PCB AND THE MAIN PCB.
MGA 118	MGA	VS50800	VZ6	High Voltage	REPEAT FAILURE OF Q530	1. CHECK D564 ON THE FOIL SIDE OF THE MAIN PCB. IT SHOULD BE MOUNTED WITH THE ANODE TO THE GATE OF Q530. IF IN BACKWARD REPLACE D564 PART # 264P045050 (MAKING SURE THE ANODE IS CONNECTED TO GATE OF Q530) AND Q530 PART # 261P082010, ON THE MAIN PCB. 2. CHE
MGA 119	MGA	VS50800	VZ6	High Voltage	EXCESSIVE HIGH VOLTAGE	1. CHECK C5A09 AND C5A50 BOTH 33 UFD 50 V OFF OF IC5A01 ON PCB-DEFL MINI
MGA 120	MGA	VS50800	VZ6	High Voltage	NO HIGH VOLTAGE, AUDIO PRESENT	1. CHECK D564 ON THE FOIL SIDE OF THE MAIN PCB. IT SHOULD BE MOUNTED WITH THE ANODE TO THE GATE OF Q530. IF IN BACKWARD REPLACE D564 PART # 264P045050 (MAKING SURE THE ANODE IS CONNECTED TO GATE OF Q530) AND Q530 PART # 261P082010, ON THE MAIN PCB. 2. CHA
MGA 121	MGA	VS45605	VZ7	High Voltage	PULSING RASTER	1. CHECK FOR IMPROPER ANODE LEAD CONNECTIONS TO THE HV BLOCK. NOTE: ARCING DUE TO POOR ANODE LEAD CONNECTIONS CAN CAUSE INTERNAL DAMAGE TO THE HV BLOCK, PART # 920P016010
MGA 122	MGA	VS45607	VZ8	High Voltage	PULSING RASTER	1. CHECK FOR IMPROPER ANODE LEAD CONNECTIONS TO THE HV BLOCK. NOTE: ARCING DUE TO POOR ANODE LEAD CONNECTIONS CAN CAUSE INTERNAL DAMAGE TO THE HV BLOCK, PART # 920P016010
MGA 123	MGA	WS48511	V21	high voltage	SHUTDOWN AT POWER	. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT
MGA 124	MGA	WS48313	V22	high voltage	SHUTDOWN AT POWER	1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT
MGA 125	MGA	CK32308	ZM	High Voltage	SERVICE CAUTION	1. THIS CHASSIS MAINTAINS A H.V CHARGE WITH THE SET TURNED OFF. THE CRT ANODE NEEDS TO BE DISCHARGED USING A STANDARD DISCHARGE PROBE WITH A 47 OHM 5W RES. IN SERIES WITH THE PROBE.BEFORE ANY SERVICING IS DONE TO THE SET.
MGA 126	MGA	CK32308	ZM	High Voltage	INTERMITTENT SHUTDOWN	1.THE CRT BIAS, WHITE BALANCE, BLACK LEVEL AND SUB CONTRAST MUST BE ALIGNED (IN THAT ORDER) PER THE SERVICE MANUAL. AFTER ALL ALIGNMENTS ARE DONE, CHANGE THE VALUE OF R-530 (LOCATED AT Q541-C) FROM 1.8K TO 2.7K
MGA 127	MGA	CK32308	ZM	High Voltage	SERVICE CAUTION	1. THIS CHASSIS MAINTAINS A H.V CHARGE WITH THE SET TURNED OFF. THE CRT ANODE NEEDS TO BE DISCHARGED USING A STANDARD DISCHARGE PROBE WITH A 47 OHM 5W RES. IN SERIES WITH THE PROBE.BEFORE ANY SERVICING IS DONE TO THE SET.
MGA 128	MGA	CK32308	ZM	High Voltage	INTERMITTENT SHUTDOWN	1.THE CRT BIAS, WHITE BALANCE, BLACK LEVEL AND SUB CONTRAST MUST BE ALIGNED (IN THAT ORDER) PER THE SERVICE MANUAL. AFTER ALL ALIGNMENTS ARE DONE, CHANGE THE VALUE OF R-530 (LOCATED AT Q541-C) FROM 1.8K TO 2.7K
MGA 129	MGA	CS20301	XM1	High Voltage	INT SHUTDOWN	1. UNIT MAY SHUT DOWN UNDER CERTAIN SIGNAL CONDITIONS. INSURE THE VALUE OF THE FOLLOWING COMPONENTS ARE AS SPECIFIED BELOW: COMPONENT VALUE LOCATION --------- ----- -------- C501 560PF / 50V IC201 PIN 12 (HOR OSC CIRCUIT) R511 150K 1/4 W IC201 PIN 46 (SYN
MGA 130	MGA	CS27MX1	XM	High Voltage	FOCUS VOLTAGE	1. THE FOLLOWING ARE THE STANDARD FOCUS VOLTAGE RANGES DURING OPERATION: A) WITH CRT-PCB CONNECTED 5.7KV TO 8.5KV B) WITH CRT-PCB DISCONNECTED 6.1KV TO 9.1KV
MGA 131	MGA	CS27MX1	XM	High Voltage	INT SHUTDOWN	1. UNIT MAY SHUT DOWN UNDER CERTAIN SIGNAL CONDITIONS. INSURE THE VALUE OF THE FOLLOWING COMPONENTS ARE AS SPECIFIED BELOW: COMPONENT VALUE LOCATION --------- ----- -------- C501 560PF / 50V IC201 PIN 12 (HOR OSC CIRCUIT) R511 150K 1/4 W IC201 PIN 46 (SYN
MGA 132	MGA	CS20RX1	XL	High Voltage	SHUT DOWN AT POWER	1. CHECK C518, 33 UFD @ 50V BETWEEN THE BASE AND EMITTER OF Q507 ON THE MAIN PCB. 2. CHECK C519 100 UFD 50 V (105C) OFF THE COLLECTOR OF Q507 ON THE MAIN PCB. 3. CHECK C517 1 UFD 50 V (105C) BETWEEN BASE AND EMITTER OF Q506 ON THE MAIN PCB 4. CHECK C520 1
MGA 133	MGA	WS48313	V22	horizontal	REPEAT FAILURE OF Q5A31 AND/OR Q5A01	1. CHECK T5A31 PART # 349P216010, OFF THE COLLECTOR OF Q5A31 ON THE MAIN PCB
MGA 134	MGA	WS55809	V19	horizontal	Q5A31 & Q5A01 Repeat failure	1. SUSPECT SHORTED WINDINGS OF T5A31 PART # 349P216010 ON THE MAIN PCB
MGA 135	MGA	WS55809	V18	horizontal	Horizontal overscan	1. EXCESSIVE HORIZONTAL WIDTH WITH NO CONTROL. CHECK FOR SHORTED Q5A01, PART # 260P788010, ON THE MAIN PCB.
MGA 136	MGA	WS55859	V19	horizontal	repeat failure of Q5A31 and or Q5A01	1. CHECK T5A31 PART # 349P216010, OFF THE COLLECTOR OF Q5A31 ON THE MAIN PCB
MGA 137	MGA	VS40VA2	VZ1	Horizontal	limited PCC control	1. CHECK FOR LEAKY OR SHORTED C5A1 OR C5A2,BOTH ARE (2.2UF 50V) ON PIN 2 OF IC5A0.LOCATED ON THE SIDE-PIN-PCB.
MGA 138	MGA	VS40VA2	VZ1	Horizontal	horiz/vert instability	1. VERT JITTER/HORZ UNSTABLE-CHECK 'GE' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'GE' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C7014,
MGA 139	MGA	VS-4541	VZ2	Horizontal	BOW AT TOP+BOTTOM OF PIC	1. BOWING ON THE TOP AND BOTTOM OF PICTURE.CHECK FOR 5.4V ON PIN 8 OF IC4B01,IF LOW OR MISSING CHECK Q4B01,ON THE MAIN-PCB. PT#260P559050. 2. CHECK FOR 6V ON THE BASE OF Q4B01 IF LOW OR MISSING CHECK THE VALUE OF R4B05 (220K 1/4W).LOCATED ON THE MAIN-PCB
MGA 140	MGA	VS-4541	VZ2	Horizontal	PICTURE IS BLOOMING	1. CHECK FOR 20.3V DC ON THE BASE OF Q502,IF LOW OR MISSING.REPLACE T501 AND CHECK Q502. T501,PT#334P191070 Q502,PT#260P559050
MGA 141	MGA	VS-4541	VZ2	Horizontal	PIX PULLS IN W/FOLDOVER	1. PIX PULLS IN ON RIGHT SIDE WITH FOLDOVER (WHITE LINE) IN CENTER OF PIX. CHECK T-500 FOR BAD CONNECTIONS. ALSO THAT LEGS OF T-500 ARE PENETRATING THROUGH THE PCB PROPERLY
MGA 142	MGA	VS-4541	VZ2	Horizontal	TOP PCC. DISTORTION	1. CHECK FOR 5.4V ON PIN 8 OF IC4B01,IF LOW,CHECK THE VALUE OF R4B07 (47K 1/4W) RES. ON THE MAIN-PCB. 2. CHECK FOR 6V ON THE BASE OF Q4B01,IF HIGH REPLACE C4B04 (33UF 50V) AND CHECK Q4B01;PT#260P559050,BOTH LOCATED ON THE MAIN-PCB
MGA 143	MGA	VS-4541	VZ2	Horizontal	PICTURE BOWED IN.	1. PICTURE HAS AN HOUR GLASS SHAPE,SUSPECT D501 IT MAY BE LEAKY OR SHORTED.D501 IS LOCATED NEXT TO Q501 ON THE MAIN-PCB. PT# 264P358070
MGA 144	MGA	VS4543	VZ3	Horizontal	REPEAT FAILURE OF Q5A02	CHECK FOR SHORTED L5A01 PART # 351P138010 ON THE MAIN PCB
MGA 145	MGA	VS4543	VZ3	Horizontal	WIDTH CHANGE ON DARK TO BRIGHT SCENE CHANGE	1. CHECK Q5A08 HIGH VOLTAGE REGULATOR, PART # 260P420020 ON THE MAIN PCB.
MGA 146	MGA	VS4543	VZ3	Horizontal	PULSING ON THE SIDES	1. CHECK FOR 20 VPP VERTICAL PULSE TO PIN 9 OF THE "GL" CONNECTOR TO THE CONVERGENCE PCB, IF MISSING, WEAK OR DISTORTED, CHECK PULSE AT SOURCE PIN 7 OF IC401 (PUMP UP OUTPUT) ON THE SIGNAL PCB, IF THE PULSE IS NOT CORRECT AT PIN 7 CHECK C402 100 UFD 50V A
MGA 147	MGA	VS50805	V16	horizontal	REDUCED OR NO HORIZONTAL DEFLECTION	1. CHECK THE COLLECTOR OF Q501 97 VOLTS DC OF LOW OR MISSING CHECK FOR AN OPEN Q503 (260P788010) AND/OR LEAKY Q502 (260P561020) ON THE MAIN PCB.
MGA 148	MGA	VS50805	V16	horizontal	SHORTED Q501	1. IF Q501 (261P071010) IS SHORTED, Q503 (260P788010) AND/OR Q502 (260P561020) MAY ALSO HAVE BEEN AFFECTED. IF ANY OF THESE TRANSISTORS ARE SHORTED OR LEAKY, REPLACE IT AND INSURE THE FOLLOWING CIRCUIT CHANGE HAS BEEN DONE. REMOVE J58 FROM THE PCB-MAIN. USING AN INSULATED JUMPER WIRE, SOLDER A 22 OHM 1/4W RESISTOR BETWEEN PIN 4 OF THE RELAY K9A30 AND THE J58 HOLE NEXT TO PIN 1 OF CONNECTOR DQ. DRESS AND INSULATE THE JUMPER AND RESISTOR TO PROTECT AGAINST SHORT CIRCUITS. INSTALL A .01 UF 50V CERAMIC CAPACITOR BETWEEN THE COLLECTOR OF Q510 AND THE GROUND LEAD OF R502.
MGA 149	MGA	VS50805	V16	horizontal	EXCESSIVE WIDTH WILL NOT ADJUST	1. CHECK Q503 (260P788010). IF SHORTED, REPLACE IT INSURE THE FOLLOWING CIRCUIT CHANGE HAS BEEN DONE. REMOVE J58 FROM THE PCB-MAIN. USING AN INSULATED JUMPER WIRE, SOLDER A 22 OHM 1/4W RESISTOR BETWEEN PIN 4 OF THE RELAY K9A30 AND THE J58 HOLE NEXT TO PIN 1 OF CONNECTOR DQ. DRESS AND INSULATE THE JUMPER AND RESISTOR TO PROTECT AGAINST SHORT CIRCUITS. INSTALL A .01 UF 50V CERAMIC CAPACITOR BETWEEN THE COLLECTOR OF Q510 AND THE GROUND LEAD OF R502.
MGA 150	MGA	WS55807	V17	horizontal	EXCESSIVE HORIZONTAL WIDTH	1. EXCESSIVE HORIZONTAL WIDTH WITH NO CONTROL. CHECK FOR SHORTED Q5A01, PART # 260P788010, ON THE MAIN PCB
MGA 151	MGA	WS55807	V17	horizontal	REPEAT FAILURE OF Q5A31 AND/OR Q5A01	1. SUSPECT SHORTED WINDINGS OF T5A31 PART # 349P216010 ON THE MAIN PCB
MGA 152	MGA	VS40VA2	VZ1	Horizontal	limited PCC control	1. CHECK FOR LEAKY OR SHORTED C5A1 OR C5A2,BOTH ARE (2.2UF 50V) ON PIN 2 OF IC5A0.LOCATED ON THE SIDE-PIN-PCB.
MGA 153	MGA	VS40VA2	VZ1	Horizontal	horiz/vert instability	1. VERT JITTER/HORZ UNSTABLE-CHECK 'GE' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'GE' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C7014,
MGA 154	MGA	VS-4541	VZ2	Horizontal	BOW AT TOP+BOTTOM OF PIC	1. BOWING ON THE TOP AND BOTTOM OF PICTURE.CHECK FOR 5.4V ON PIN 8 OF IC4B01,IF LOW OR MISSING CHECK Q4B01,ON THE MAIN-PCB. PT#260P559050. 2. CHECK FOR 6V ON THE BASE OF Q4B01 IF LOW OR MISSING CHECK THE VALUE OF R4B05 (220K 1/4W).LOCATED ON THE MAIN-PCB
MGA 155	MGA	VS-4541	VZ2	Horizontal	PICTURE IS BLOOMING	1. CHECK FOR 20.3V DC ON THE BASE OF Q502,IF LOW OR MISSING.REPLACE T501 AND CHECK Q502. T501,PT#334P191070 Q502,PT#260P559050
MGA 156	MGA	VS-4541	VZ2	Horizontal	PIX PULLS IN W/FOLDOVER	1. PIX PULLS IN ON RIGHT SIDE WITH FOLDOVER (WHITE LINE) IN CENTER OF PIX. CHECK T-500 FOR BAD CONNECTIONS. ALSO THAT LEGS OF T-500 ARE PENETRATING THROUGH THE PCB PROPERLY
MGA 157	MGA	VS-4541	VZ2	Horizontal	TOP PCC. DISTORTION	1. CHECK FOR 5.4V ON PIN 8 OF IC4B01,IF LOW,CHECK THE VALUE OF R4B07 (47K 1/4W) RES. ON THE MAIN-PCB. 2. CHECK FOR 6V ON THE BASE OF Q4B01,IF HIGH REPLACE C4B04 (33UF 50V) AND CHECK Q4B01;PT#260P559050,BOTH LOCATED ON THE MAIN-PCB
MGA 158	MGA	VS-4541	VZ2	Horizontal	PICTURE BOWED IN.	1. PICTURE HAS AN HOUR GLASS SHAPE,SUSPECT D501 IT MAY BE LEAKY OR SHORTED.D501 IS LOCATED NEXT TO Q501 ON THE MAIN-PCB. PT# 264P358070
MGA 159	MGA	VS4543	VZ3	Horizontal	REPEAT FAILURE OF Q5A02	CHECK FOR SHORTED L5A01 PART # 351P138010 ON THE MAIN PCB
MGA 160	MGA	VS4543	VZ3	Horizontal	WIDTH CHANGE ON DARK TO BRIGHT SCENE CHANGE	1. CHECK Q5A08 HIGH VOLTAGE REGULATOR, PART # 260P420020 ON THE MAIN PCB.
MGA 161	MGA	VS4543	VZ3	Horizontal	PULSING ON THE SIDES	1. CHECK FOR 20 VPP VERTICAL PULSE TO PIN 9 OF THE "GL" CONNECTOR TO THE CONVERGENCE PCB, IF MISSING, WEAK OR DISTORTED, CHECK PULSE AT SOURCE PIN 7 OF IC401 (PUMP UP OUTPUT) ON THE SIGNAL PCB, IF THE PULSE IS NOT CORRECT AT PIN 7 CHECK C402 100 UFD 50V A
MGA 162	MGA	VS45605	VZ7	Horizontal	HORIZONTAL PULLING AND TEARING	1. HORIZONTAL PULLING AND TEARING, MAY ALSO HAVE VERTICAL ROLLING OR VERTICAL BLANKING BAR LOCKING IN THE MIDDLE OF THE PICTURE. CHECK C2C52 10 UFD @ 50 V OFF THE BASE OF Q2C51 ON THE SIGNAL PCB. 2. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 (9-VOLT REG
MGA 163	MGA	VS45607	VZ8	Horizontal	HORIZONTAL PULLING AND TEARING	1. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 (9-VOLT REGULATOR) ON THE SIGNAL PCB.
MGA 164	MGA	WS48511	V21	horizontal	REPEAT FAILURE OF Q5A31 AND/OR Q5A01	1. CHECK T5A31 PART # 349P216010, OFF THE COLLECTOR OF Q5A31 ON THE MAIN PCB
MGA 165	MGA	WS48313	V22	horizontal	REPEAT FAILURE OF Q5A31 AND/OR Q5A01	1. CHECK T5A31 PART # 349P216010, OFF THE COLLECTOR OF Q5A31 ON THE MAIN PCB
MGA 166	MGA	VS-4571	V13	horizontal	limited pcc control	1. CHECK FOR LEAKY OR SHORTED C5A1 OR C5A2,BOTH ARE (2.2UF 50V) ON PIN 2 OF IC5A0.LOCATED ON THE SIDE-PIN-PCB.
MGA 167	MGA	VS-4571	V13	horizontal	horiz/vert instablilty	1. VERT JITTER/HORZ UNSTABLE-CHECK 'GE' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'GE' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C7014, C7026, C7036) AND ALL CONNECTING TRACES TO THESE CAPS FOR CONTINUITY 2. HORIZONTAL TEARING, VERTICAL JITTER. SIGNAL RELATED CONDITION. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
MGA 168	MGA	VS-5073	V13B	horizontal	horiz/vert instability	1. HORIZONTAL TEARING, VERTICAL JITTER. SIGNAL RELATED CONDITION. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
MGA 169	MGA	CS35607	ZA	Horizontal	HORZ BAR MOVING UP IN PIX	1. HORIZONTAL BAR MOSTLY VISIBLE ON ANT."B" WITH DARK PIX. INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES ON HF PWB A.C1Y4 - 220UF @ 16V (ELECTROLYTIC) B.R1Y7 - 8.2KOHM 1/4W C.ENSURE JUMPER #3 HAS INSTALLED A 100 OHM 1/4W RESISTOR
MGA 170	MGA	CS35607	ZA	Horizontal	HORIZONTAL FLAGGING	1. TO PREVENT HORIZONTAL FLAGGING AT THE TOP OF THE PICTURE UNDER CERTAIN SIGNAL CONDITIONS AND PLAYING MACROVISION ENCODED VHS TAPES OR DVD SOFTWARE, CHANGE R6A05 (PIN 5 IC6A01, AFC GAIN) FROM 4.7 K TO 8.2 K AND CHANGE R6A07 FROM 220 OHM TO 560 OHM (PIN
MGA 171	MGA	CS27205	YM0	Horizontal	INT. OR NO SYNC	CHECK VIDEO LEVEL AT THE BASE OF Q2030, IF LOW OR MISSING CHECK DL2032 PART NUMBER: 337P189010 LOCATED OFF PIN 5 OF MB CONNECTOR ON MAIN.
MGA 172	MGA	CK35702	YA2	Horizontal	HORIZ. TEARING AND SQUEAL	CHECK THE VALUE OF R533 (15K 1/4W) ON THE COLLECTOR OF Q531.LOCATED ON THE DEFL.-PCB
MGA 173	MGA	CS35601	YA1	Horizontal	NOISE FROM FBT	1. NOISE FROM FBT ASSOCIATED WITH HORZ WAVEFORM DISTORTION AT THE COLLECTOR OF Q532. CHECK C5E6 (560PF 2KV) ON DEFL-PWB.
MGA 174	MGA	CS35601	YA1	Horizontal	HORIZONTAL FLAGGING AT TOP	1. CHECK C5A1 3.3 UFD 50 V NP OFF PIN 5 OF IC201 ON THE SINGAL PCB.
MGA 175	MGA	CK35804	YA2B	Horizontal	HORIZ. TEARING AND SQUEAL	1. CHECK THE VALUE OF R533 (15K 1/4W) ON THE COLLECTOR OF Q531.LOCATED ON THE DEFL-PCB.
MGA 176	MGA	CK35804	YA2B	Horizontal	HORIZONTAL FLAGGING	1. TO PREVENT HORIZONTAL FLAGGING AT THE TOP OF THE PICTURE UNDER CERTAIN SIGNAL CONDITIONS AND PLAYING MACROVISION ENCODED VHS TAPES OR DVD SOFTWARE, CHANGE R6A05 (PIN 5 IC6A01, AFC GAIN) FROM 4.7 K TO 8.2 K AND CHANGE R6A07 FROM 220 OHM TO 560 OHM (PIN
MGA 177	MGA	CS35503	YA0	Horizontal	Q532 FAILS Z501 OPENS	1. INTSALL KIT-HZ40/35 Q532 AND Z501 ARE ENCLOSED IN THE KIT. 2. REPEATED FAILURE OF Q532 AFTER KIT-HZ40/35 HAS BEEN INSTALLED.CHECK THE FELLOWING COMPONENTS TO BE EITHER LEAKY OR OPEN.R533(15K 1/4W), C532(680PF 500V) AND C539(1UF 200V),LOCATED ON THE DEF
MGA 178	MGA	CS35503	YA0	Horizontal	REPEATED FAILURE OF Q532	1. INTSALL KIT-HZ40/35 Q532 AND Z501 ARE ENCLOSED IN THE KIT. 2. REPEATED FAILURE OF Q532 AFTER KIT-HZ40/35 HAS BEEN INSTALLED.CHECK THE FELLOWING COMPONENTS TO BE EITHER LEAKY OR OPEN.R533(15K 1/4W), C532(680PF 500V) AND C539(1UF 200V),LOCATED ON THE DEF
MGA 179	MGA	CS35503	YA0	Horizontal	SQUEAL WITH SCENE CHANGE	1. REPLACE T552 PCC-TRANSFORMER LOCATED ON THE DEFL-PCB. PT#349P122050
MGA 180	MGA	CS35607	ZA	Horizontal	HORZ BAR MOVING UP IN PIX	1. HORIZONTAL BAR MOSTLY VISIBLE ON ANT."B" WITH DARK PIX. INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES ON HF PWB A.C1Y4 - 220UF @ 16V (ELECTROLYTIC) B.R1Y7 - 8.2KOHM 1/4W C.ENSURE JUMPER #3 HAS INSTALLED A 100 OHM 1/4W RESISTOR
MGA 181	MGA	CS35607	ZA	Horizontal	HORIZONTAL FLAGGING	1. TO PREVENT HORIZONTAL FLAGGING AT THE TOP OF THE PICTURE UNDER CERTAIN SIGNAL CONDITIONS AND PLAYING MACROVISION ENCODED VHS TAPES OR DVD SOFTWARE, CHANGE R6A05 (PIN 5 IC6A01, AFC GAIN) FROM 4.7 K TO 8.2 K AND CHANGE R6A07 FROM 220 OHM TO 560 OHM (PIN
MGA 182	MGA	CS27205	YM0	Horizontal	INT. OR NO SYNC	CHECK VIDEO LEVEL AT THE BASE OF Q2030, IF LOW OR MISSING CHECK DL2032 PART NUMBER: 337P189010 LOCATED OFF PIN 5 OF MB CONNECTOR ON MAIN.
MGA 183	MGA	CK35702	YA2	Horizontal	HORIZ. TEARING AND SQUEAL	CHECK THE VALUE OF R533 (15K 1/4W) ON THE COLLECTOR OF Q531.LOCATED ON THE DEFL.-PCB
MGA 184	MGA	CS35601	YA1	Horizontal	NOISE FROM FBT	1. NOISE FROM FBT ASSOCIATED WITH HORZ WAVEFORM DISTORTION AT THE COLLECTOR OF Q532. CHECK C5E6 (560PF 2KV) ON DEFL-PWB.
MGA 185	MGA	CS35601	YA1	Horizontal	HORIZONTAL FLAGGING AT TOP	1. CHECK C5A1 3.3 UFD 50 V NP OFF PIN 5 OF IC201 ON THE SINGAL PCB.
MGA 186	MGA	CK35804	YA2B	Horizontal	HORIZ. TEARING AND SQUEAL	1. CHECK THE VALUE OF R533 (15K 1/4W) ON THE COLLECTOR OF Q531.LOCATED ON THE DEFL-PCB.
MGA 187	MGA	CK35804	YA2B	Horizontal	HORIZONTAL FLAGGING	1. TO PREVENT HORIZONTAL FLAGGING AT THE TOP OF THE PICTURE UNDER CERTAIN SIGNAL CONDITIONS AND PLAYING MACROVISION ENCODED VHS TAPES OR DVD SOFTWARE, CHANGE R6A05 (PIN 5 IC6A01, AFC GAIN) FROM 4.7 K TO 8.2 K AND CHANGE R6A07 FROM 220 OHM TO 560 OHM (PIN
MGA 188	MGA	CS35503	YA0	Horizontal	Q532 FAILS Z501 OPENS	1. INTSALL KIT-HZ40/35 Q532 AND Z501 ARE ENCLOSED IN THE KIT. 2. REPEATED FAILURE OF Q532 AFTER KIT-HZ40/35 HAS BEEN INSTALLED.CHECK THE FELLOWING COMPONENTS TO BE EITHER LEAKY OR OPEN.R533(15K 1/4W), C532(680PF 500V) AND C539(1UF 200V),LOCATED ON THE DEF
MGA 189	MGA	CS35503	YA0	Horizontal	REPEATED FAILURE OF Q532	1. INTSALL KIT-HZ40/35 Q532 AND Z501 ARE ENCLOSED IN THE KIT. 2. REPEATED FAILURE OF Q532 AFTER KIT-HZ40/35 HAS BEEN INSTALLED.CHECK THE FELLOWING COMPONENTS TO BE EITHER LEAKY OR OPEN.R533(15K 1/4W), C532(680PF 500V) AND C539(1UF 200V),LOCATED ON THE DEF
MGA 190	MGA	CS35503	YA0	Horizontal	SQUEAL WITH SCENE CHANGE	1. REPLACE T552 PCC-TRANSFORMER LOCATED ON THE DEFL-PCB. PT#349P122050
MGA 191	MGA	CS20301	XM1	Horizontal	NO HORZ DRIVE	MISSING HORZ DRIVE AT PIN 13 OF IC201, CHECK C6F3 (47UF 25V) OFF PIN 3 OF IC6E2 (9V REG).
MGA 192	MGA	CS27MX1	XM	Horizontal	HORZ/VERT INSTABILITY	1. VERT JITTER/HORZ UNSTABLE-CHECK 'VP' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'VP' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C7014,
MGA 193	MGA	VS50VA1	V12	Horizontal sync	MGA VS50VA1. Unit has unstable horizontal sync in the main pix. Also the Raster is darker than normal and has tendency to have vertical jitters. Problem located in the PIP module. Note: This module is used in several models from projection to direct view televisions.	Tech needs to bypass the PIP module. The Horizontal sync is stripped from the composite video shortly before the PIP module handles the luminance signal. By jumping 5 to 11 & 7 to 9 of the VP connector the PIP board can eliminated. The picture cleared up after this. The components that cause a corruption in the Luminance signal are C7001 and C7036. These are surface mounted capacitors rated at 4.7 mfd @ 16 vdc. These capacitors were bad in this unit. Careful replacement with small radial capacitors corrected the problem.  (However not recommended) The right capacitors are available from MCM as a KIT. It is a good idea to ESR all the electrolytics  in this module. My experience has been that the bad capacitors are found outside the shielded compartment.
MGA 194	MGA	CK3530		interference	CK3530. Unit has interference on screen on channels 58, 59. Other channels show poor quality of reception. The lines of interference appear as diagonal lines of equal distance migrating from the lower left to upper right of screen.	The description of this interference is classic example of FM interference. This is mostly caused by an inoperative FM filter in set or the set never had one to begin with. Suggested tech try a bullet FM filter to eliminate symptom. Bullet filter correct the symptom. Available from MCM.
MGA 195	MGA	CS26EX1		Keyboard	MGA CS26EX1 Cannot get keyboard to function.	Unit stuck in the hotel mode. Instruct tech to access the menu function and invoke 008 "enter" Turn off the Hotel mode operation using the hand unit.
MGA 196	MGA	CK35MX2	JU-0	luminance missing	CK35MX2. Unit does not have proper luminance or PIP. When touching PIP module the video comes and goes. Also looses vertical sync. Tech may need to replace the PIP module when the new stock number.  (UPDATE: this module is no longer available). This module is not difficult to repair. It does contain several surface mounted electrolytics and is also a dual trace board. Several of these electrolytics are known to leak. The fluid from the capacitors is corrosive and eats up the traces and plate-thru holes in the circuit board..	This unit has a defective C7001 and a plate-through-hole that was damaged by the fluid. Tech had to passed a very small diameter wire (32ga) through the plate-thru hole and solder it to both sides to complete connection between the top and bottom of board. Care must be done to remove these electrolytics. A technique that works well for me is to use solder flux either paste or liquid, a  soldering iron at 600 degrees tip temperature, and a conical tip. Saturate the legs of the capacitor with flux and alternate the melting of the solder on each leg. Do this quickly so the solder remains semi fluid. Then with a single tap of the tip of the iron, knock the capacitor over in the direction of one of the solder lands. This technique has worked 100% of the time for me. Never had a torn trace. Avoid solder wick with this board. Install the new capacitors and clean the board with flux remover.
MGA 197	MGA	CS2771		OSD Jumping	The picture was OK but select Menu and the Menu screen would jump vertically very erratically. Better as warms up.	Freeze spray revealed a thermal electrolytic capacitor "C4E5" 100 Mfd@ 35V near the vertical output IC at rear.
MGA 198	MGA	VS40VA2	VZ1	Pincushion	Side PCC/Keystone distortion	1. CHECK FOR LEAKY OR SHORTED C5A1 OR C5A2,BOTH ARE (2.2UF 50V) ON PIN 2 OF IC5A0.LOCATED ON THE SIDE-PIN-PCB.
MGA 199	MGA	WS65903	V15	pincushion	CONVERGENCE GEOMETRY DISTORTION	1. CHECK CONNECTOR "VD" FOR PROPER CONNECTION, BETWEEN THE CONVERGENCE PCB AND POWER PCB
MGA 200	MGA	VS40VA2	VZ1	Pincushion	Side PCC/Keystone distortion	1. CHECK FOR LEAKY OR SHORTED C5A1 OR C5A2,BOTH ARE (2.2UF 50V) ON PIN 2 OF IC5A0.LOCATED ON THE SIDE-PIN-PCB.
MGA 201	MGA	VS45501	VZ4	Pincushion	RASTER DISTORTION	1. CHECK FOR -8 VDC TO THE CONVERGENCE PCB AT "VM" CONNECTOR PIN 3, IF LOW, MISSING OR NOISEY, CHECK C936 (1000 UFD 16 V) AND C935 (100 UFD 16 V) ON THE MAIN PCB. 2. CHECK C924 (1000 UFD 36V) AND C925 (100 UFD 50 V) IN THE -24 VOLT SUPPLY CIRCUIT ON THE M
MGA 202	MGA	VS50800	VZ6	Pincushion	CONVERGENCE GEOMETRY DISTORTION	1. CHECK CONNECTOR "VD" FOR PROPER CONNECTION, BETWEEN THE CONVERGENCE PCB AND POWER PCB
MGA 203	MGA	VS-4571	V13	pincushion	limited pcc control	1. CHECK FOR LEAKY OR SHORTED C5A1 OR C5A2,BOTH ARE (2.2UF 50V) ON PIN 2 OF IC5A0.LOCATED ON THE SIDE-PIN-PCB
MGA 204	MGA	TS-5087	V14	pincushion	NO SIDE AND/OR TOP & BOTTOM PCC CONTROL	1. CHECK FOR +5V ON PIN (54) OF IC4A01 AND -5V ON PIN (17) IF PRESENT,CHECK FOR 5V P-P OF DATA ON PIN (12) AND PIN (13) OF IC4A01. IF PRESENT MONITOR PIN (48) (PCC. OUTPUT) OF THE IC FOR A CHANGE IN THE WAVEFORM WHEN ADJUSTING TOP & BOTTOM PCC .IF THERE IS NO CHANGE REPLACE IC4A01, LOCATED ON THE CONV.-PCB. PT#270P276010
MGA 205	MGA	TS-5087	V14	pincushion	NO PCC CONTROL	1. MONITOR PIN 48 (PCC. OUTPUT) OF THE IC4A01 FOR A CHANGE IN THE WAVEFORM WHEN ADJUSTING TOP & BOTTOM PCC .IF THERE IS NO CHANGE OF IF THE WAVEFORM IS MISSING REPLACE IC4A01, LOCATED ON THE CONVERGENCE PCB. PART # 270P276010.
MGA 206	MGA	CS3531		Poor video	CS3531. Unit has washed out picture. B+ too low at output of regulator IC8A!. Caused by burned R8A2 & R8A3	Resistor R8A2 increased in value causing drop in 17 volts to 12 volt regulator.
MGA 207	MGA	WS48313	V22	power supply	SHUTDOWN AT POWER	1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT.
MGA 208	MGA	WS48313	V22	power supply	NO POWER	1. CHECK FOR 12 VOLTS DC (AC-OFF DETECT) AT PIN 3 OF PC9A21 IF LOW OR MISSING REPLACE PC9A21 PART # 268P058020 ON THE POWER PCB.
MGA 209	MGA	WS55809	V18	power supply	shut down at power on	1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB (NOT SHOWN IN THE SCHEMATIC). 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT.
MGA 210	MGA	VS40VA2	VZ1	Power Supply	No power up	1. MISSING STANBY VOLTAGES. SUSPECT OPEN T900. MOUNTED TO CABINET AT RIGHT REAR LOCATION. PT # 350P581010. 2. CHECK R2045 AND R2048 BOTH ARE 6.8 OHM 3W OFF PIN 5 OF IC2003 ON THE SIGNAL PCB.
MGA 211	MGA	VS-4541	VZ2	Power Supply	POWER SUPPLY PULSATES	1. POWER SUPPLY PULSATES ON AND OFF,CHECK IC9A1 TO BE SHORTED OR LEAKY. LOCATED ON THE MAIN-PCB. PT#267P062010
MGA 212	MGA	VS-4541	VZ2	Power Supply	WON'T TURN ON:-OSC.	1. WILL NOT TURN ON,SUPPLY OSCILLATES.CHECK THE VOLTAGE AT PIN 5 OF IC9A0 IF 0V.REPLACE IC9A0 (PT#267P112050),D9A00 (PT#264P102020) ON THE MAIN-PCB
MGA 213	MGA	VS-4541	VZ2	Power Supply	INTERMITTENT COLD START	1. SEE SERVICE TIP *VS-64A* IS AVAILABLE IN KIT FORM PT#KIT-VZPWR.
MGA 214	MGA	VS4543	VZ3	Power Supply	INTERMITTENT SHUTDOWN	1. REPLACE L5A00,IF COIL IS WRAPPED IN BLACK TAPE,WITH PT#351P138020, (THE NEW COIL SHOULD BE WRAPPED WITH YELLOW TAPE).THIS IS LOCATED ON THE MAIN-PCB.
MGA 215	MGA	VS4543	VZ3	Power Supply	SHUTDOWN AT POWER ON	1. SHORT DETECT SHUT DOWN (PIN 15 OF IC700) CHECK FOR OPEN L902 PART # 351P070010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2. CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB 3. CHECK D5A09, PART # 264P244030 OFF
MGA 216	MGA	VS65903	v15	power supply	INTERFERENCE IN THE PICTURE	1. ON THE FOIL SIDE OF THE MAIN PCB REMOVE THE JUMPER IN PARALLEL WITH L9A06, ADD A JUMPER FROM THE ANODE OF D9A09 AND THE CLOSEST TERMINAL OF C9A13.
MGA 217	MGA	VS50805	V16	power supply	NO POWER. RELAY CLICKS	1. CHECK Q501 (261P071010), Q502 (260P561020) AND Q503 (260P788010). IF ANY OF THESE TRANSISTORS ARE SHORTED OR LEAKY REPLACE IT INSURE THE FOLLOWING CIRCUIT CHANGE HAS BEEN DONE. REMOVE J58 FROM THE PCB-MAIN. USING AN INSULATED JUMPER WIRE, SOLDER A 22 OHM 1/4W RESISTOR BETWEEN PIN 4 OF THE RELAY K9A30 AND THE J58 HOLE NEXT TO PIN 1 OF CONNECTOR DQ. DRESS AND INSULATE THE JUMPER AND RESISTOR TO PROTECT AGAINST SHORT CIRCUITS. INSTALL A .01 UF 50V CERAMIC CAPACITOR BETWEEN THE COLLECTOR OF Q510 AND THE GROUND LEAD OF R502.
MGA 218	MGA	VS50805	V16	power supply	NO POWER. NO RELAY CLICK	1. CHECK FOR 5 VDC AT PIN 9 OF IC700 (AC-OFF) IF MISSING CHECK PC901 PART # 268P058020, ON THE POWER PCB.
MGA 219	MGA	VS50805	V16	power supply	POWER SUPPLY PULSES	1. IC9A00 SWITCHED SUPPLIES PULSE UP AND DOWN. CHECK FOR SHORTED CONVERGENCE OUTPUT IC''S, IC8D01 AND/OR IC8D02 PART # 267P120010 ON THE POWER PCB. 2. IC9A00 SWITCHED SUPPLIES PULSE UP AND DOWN. CHECK Q501 (261P071010), Q502 (260P561020) AND Q503 (260P788010). IF ANY OF THESE TRANSISTORS ARE SHORTED OR LEAKY REPLACE IT INSURE THE FOLLOWING CIRCUIT CHANGE HAS BEEN DONE. REMOVE J58 FROM THE PCB-MAIN. USING AN INSULATED JUMPER WIRE, SOLDER A 22 OHM 1/4W RESISTOR BETWEEN PIN 4 OF THE RELAY K9A30 AND THE J58 HOLE NEXT TO PIN 1 OF CONNECTOR DQ. DRESS AND INSULATE THE JUMPER AND RESISTOR TO PROTECT AGAINST SHORT CIRCUITS. INSTALL A .01 UF 50V CERAMIC CAPACITOR BETWEEN THE COLLECTOR OF Q510 AND THE GROUND LEAD OF R502.
MGA 220	MGA	WS55807	V17	power supply	NO POWER ON	1. CHECK IC7A00 PIN 53 FOR LOW LOGIC (0 VOLTS), IF HIGH (3.3 VDC) CHECK FOR SHORTED D9A31 PART # 264P045050 AND OPEN R9A33 220 OHM 1/4 WATT ON THE POWER PCB.
MGA 221	MGA	WS55807	V17	power supply	NO POWER ON	CHECK IC7A00 PIN 53 FOR LOW LOGIC (0 VOLTS), IF HIGH (3.3 VDC) CHECK FOR SHORTED D9A31 PART # 264P045050 AND OPEN R9A33 220 OHM 1/4 WATT ON THE POWER PCB.
MGA 222	MGA	VS40VA2	VZ1	Power Supply	No power up	1. MISSING STANBY VOLTAGES. SUSPECT OPEN T900. MOUNTED TO CABINET AT RIGHT REAR LOCATION. PT # 350P581010. 2. CHECK R2045 AND R2048 BOTH ARE 6.8 OHM 3W OFF PIN 5 OF IC2003 ON THE SIGNAL PCB.
MGA 223	MGA	VS-4541	VZ2	Power Supply	POWER SUPPLY PULSATES	1. POWER SUPPLY PULSATES ON AND OFF,CHECK IC9A1 TO BE SHORTED OR LEAKY. LOCATED ON THE MAIN-PCB. PT#267P062010
MGA 224	MGA	VS-4541	VZ2	Power Supply	WON'T TURN ON:-OSC.	1. WILL NOT TURN ON,SUPPLY OSCILLATES.CHECK THE VOLTAGE AT PIN 5 OF IC9A0 IF 0V.REPLACE IC9A0 (PT#267P112050),D9A00 (PT#264P102020) ON THE MAIN-PCB
MGA 225	MGA	VS-4541	VZ2	Power Supply	INTERMITTENT COLD START	1. SEE SERVICE TIP *VS-64A* IS AVAILABLE IN KIT FORM PT#KIT-VZPWR.
MGA 226	MGA	VS4543	VZ3	Power Supply	INTERMITTENT SHUTDOWN	1. REPLACE L5A00,IF COIL IS WRAPPED IN BLACK TAPE,WITH PT#351P138020, (THE NEW COIL SHOULD BE WRAPPED WITH YELLOW TAPE).THIS IS LOCATED ON THE MAIN-PCB.
MGA 227	MGA	VS4543	VZ3	Power Supply	SHUTDOWN AT POWER ON	1. SHORT DETECT SHUT DOWN (PIN 15 OF IC700) CHECK FOR OPEN L902 PART # 351P070010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2. CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB 3. CHECK D5A09, PART # 264P244030 OFF
MGA 228	MGA	VS45501	VZ4	Power Supply	Z905 OPENS	1. CHECK C924 (1000 UFD 36V) AND C925 (100 UFD 50 V) IN THE -24 VOLT SUPPLY CIRCUIT ON THE MAIN PCB. 2. CHECK FOR LEAKY D913 PART # 264P722010, OFF OF PIN 12 OF T900 (15-VOLT LINE) ON THE MAIN PCB. 3. CHECK THE CONVERGENCE OUTPUTS, IC8W00, IC8W01 AND/OR I
MGA 229	MGA	VS45603	VZ5	Power Supply	NO POWER ON	1. CHECK IC700 PIN 4 (AC-OFF) FOR 0 VOLTS DC. IF HIGH, CHECK FOR LEAKY D980 PART # 264P045040 ON THE MAIN PCB.
MGA 230	MGA	VS50800	VZ6	Power Supply	INTERFERENCE IN THE PICTURE	1. ON THE FOIL SIDE OF THE MAIN PCB REMOVE THE JUMPER IN PARALLEL WITH L9A06, ADD A JUMPER FROM THE ANODE OF D9A09 AND THE CLOSEST TERMINAL OF C9A13.
MGA 231	MGA	VS45605	VZ7	Power Supply	SHUTDOWN	1. MAY BE INTERMITTENT, SELF-DIAGNOSIS ERROR 23 OR 24. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES. 2. SHUTDOWN AT POWER WITH SELF-DIAGNOSIS ERROR 23 OR 24. CHECK C411 2200 UFD 35 V AND C412 10 UFD 50 V, BOTH LOCATED ON THE MAIN PCB.
MGA 232	MGA	VS45605	VZ7	Power Supply	NO POWER ON	1. CHECK IC700 PIN 20 (AC-OFF) FOR 0 VOLTS DC. IF HIGH, CHECK FOR LEAKY D980 PART # 264P045040 ON THE MAIN PCB.
MGA 233	MGA	VS45607	VZ8	Power Supply	NO POWER ON	1. CHECK IC700 PIN 20 (AC-OFF) FOR 0 VOLTS DC. IF HIGH, CHECK FOR LEAKY D980 PART # 264P045040 ON THE MAIN PCB.
MGA 234	MGA	VS45607	VZ8	Power Supply	SHUTDOWN	1. MAY BE INTERMITTENT, SELF-DIAGNOSIS ERROR 23 OR 24. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES. 2. SHUTDOWN AT POWER WITH SELF-DIAGNOSIS ERROR 23 OR 24. CHECK C411 2200 UFD 35 V AND C412 10 UFD 50 V, BOTH LOCATED ON THE MAIN PCB.
MGA 235	MGA	WS48511	V21	power supply	NO POWER	. CHECK FOR 12 VOLTS DC (AC-OFF DETECT) AT PIN 3 OF PC9A21 IF LOW OR MISSING REPLACE PC9A21 PART # 268P058020 ON THE POWER PCB.
MGA 236	MGA	WS48313	V22	power supply	SHUTDOWN AT POWER	1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT.
MGA 237	MGA	WS48313	V22	power supply	NO POWER	1. CHECK FOR 12 VOLTS DC (AC-OFF DETECT) AT PIN 3 OF PC9A21 IF LOW OR MISSING REPLACE PC9A21 PART # 268P058020 ON THE POWER PCB.
MGA 238	MGA	VS50111	V20	power supply	NO POWER	1. CHECK FOR 8.4 VOLTS AT PIN 3 OF PC9A21 ON THE POWER PCB (AC-OFF), IF LOW OR MISSING REPLACE PC9A21 PART # 268P058020.
MGA 239	MGA	VS50111	V20	power supply	SHUTDOWN AT POWER	1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT
MGA 240	MGA	TS-50811	V14B	power supply	INTERMITTENTLY WON'T POWER UP ON FIRST ATTEMPT	1. ADD A .1 UFD 50 V CERAMIC CAPACITOR ON THE FOIL SIDE OF THE FS-PCB BETWEEN PIN 8 AND 3 OF THE "RF" CONNECTOR AND ROUTE THE BLUE CRT 2ND ANODE LEAD AWAY FROM THE "RF" WIRING HARNESS. (REFER TO T/A SERVICE BULLETIN UNDER THIS SUBJECT)
MGA 241	MGA	TS-5087	V14	power supply	INTERMITTENT COLD START	1. INSTALL R9A18 3.3 K 1/4 W BETWEEN IC9A0 PIN 7 AND GROUND ON THE MAIN PCB
MGA 242	MGA	CK35702	YA2	Power Supply	DEAD:-INT. POWER	1. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB.
MGA 243	MGA	CK35702	YA2	Power Supply	DEAD SET	1. CHECK THE VALUE OF R996 (330K 1/2W),LOCATED ON THE COLLECTOR OF Q907. ON THE DEFL-PCB.
MGA 244	MGA	CK35702	YA2	Power Supply	SET CYCLES ON/OFF/NO PWR	1.UNIT WILL NOT POWER UP SET CYCLES ON/OFF.CHECK FOR SHORTED IC302, LOCATED ON THE SIGNAL-PCB. PT#272P459020
MGA 245	MGA	CK35702	YA2	Power Supply	NO POWER	1. CHECK THE VALUE OF R996 (330 K 1/2 W), LOCATED ON THE COLLECTOR OF Q907 ON THE DEFL-PCB. 2. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB.
MGA 246	MGA	CS35601	YA1	Power Supply	DEAD:-INT. POWER	1. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB.
MGA 247	MGA	CS35601	YA1	Power Supply	DEAD SET	1. CHECK THE VALUE OF R996 (330K 1/2W),LOCATED ON THE COLLECTOR OF Q907. ON THE DEFL-PCB.
MGA 248	MGA	CS35601	YA1	Power Supply	NO POWER	1. CHECK THE VALUE OF R996 (330 K 1/2 W) OFF C OF Q907 ON THE DEFL PCB. 2. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB
MGA 249	MGA	CK35804	YA2B	Power Supply	SHUTSDOWN AT POWER UP	1. CHECK FOR A SHORTED OR LEAKY ZENER DIODE,D990 ON THE BASE OF Q990. LOCATED ON THE DEFL-PCB.
MGA 250	MGA	CK35804	YA2B	Power Supply	WILL NOT POWER UP	1. CHECK PIN 35 OF IC701 FOR 4.5V,IF LOW CHECK FOR A SHORTED D2SV2.ON THE A/V-PCB. PT#264P502030
MGA 251	MGA	CS35503	YA0	Power Supply	BREATHING PIX	1. SYMPTOM MAY RESEMBLE BAD REGULATOR. CHECK THE VALUE/S OF R967 AND R968 FOR AN INCREASE IN VALUE. BOTH 1K OHM.
MGA 252	MGA	CS35503	YA0	Power Supply	INTERMITTENT POWER UP	1. CHECK Q901 AND Q916 TO BE SHORTED OR LEAKY.IF ONE IS DEFECTIVE REPLACE BOTH TRANSISTORS.LOCATED ON THE DEFL.-PCB. PT#260P422010.
MGA 253	MGA	CS35503	YA0	Power Supply	ALL SWITCHED SUPPLIES LOW	1. CHECK D920 (3-VOLT ZENER) PART # 264P457050, OFF PIN 2 OF IC901 ON THE DEFL. PCB
MGA 254	MGA	CK35702	YA2	Power Supply	DEAD:-INT. POWER	1. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB.
MGA 255	MGA	CK35702	YA2	Power Supply	DEAD SET	1. CHECK THE VALUE OF R996 (330K 1/2W),LOCATED ON THE COLLECTOR OF Q907. ON THE DEFL-PCB.
MGA 256	MGA	CK35702	YA2	Power Supply	SET CYCLES ON/OFF/NO PWR	1.UNIT WILL NOT POWER UP SET CYCLES ON/OFF.CHECK FOR SHORTED IC302, LOCATED ON THE SIGNAL-PCB. PT#272P459020
MGA 257	MGA	CK35702	YA2	Power Supply	NO POWER	1. CHECK THE VALUE OF R996 (330 K 1/2 W), LOCATED ON THE COLLECTOR OF Q907 ON THE DEFL-PCB. 2. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB.
MGA 258	MGA	CS35601	YA1	Power Supply	DEAD:-INT. POWER	1. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB.
MGA 259	MGA	CS35601	YA1	Power Supply	DEAD SET	1. CHECK THE VALUE OF R996 (330K 1/2W),LOCATED ON THE COLLECTOR OF Q907. ON THE DEFL-PCB.
MGA 260	MGA	CS35601	YA1	Power Supply	NO POWER	1. CHECK THE VALUE OF R996 (330 K 1/2 W) OFF C OF Q907 ON THE DEFL PCB. 2. CHECK IC701 63 FOR 5 VOLTS DC IF LOW OR MISSING. CHECK D707 PART # 264P045040 OFF PIN 3 OF IC708. LOCATED ON THE SIGNAL-PCB
MGA 261	MGA	CK35804	YA2B	Power Supply	SHUTSDOWN AT POWER UP	1. CHECK FOR A SHORTED OR LEAKY ZENER DIODE,D990 ON THE BASE OF Q990. LOCATED ON THE DEFL-PCB.
MGA 262	MGA	CK35804	YA2B	Power Supply	WILL NOT POWER UP	1. CHECK PIN 35 OF IC701 FOR 4.5V,IF LOW CHECK FOR A SHORTED D2SV2.ON THE A/V-PCB. PT#264P502030
MGA 263	MGA	CS35503	YA0	Power Supply	BREATHING PIX	1. SYMPTOM MAY RESEMBLE BAD REGULATOR. CHECK THE VALUE/S OF R967 AND R968 FOR AN INCREASE IN VALUE. BOTH 1K OHM.
MGA 264	MGA	CS35503	YA0	Power Supply	INTERMITTENT POWER UP	1. CHECK Q901 AND Q916 TO BE SHORTED OR LEAKY.IF ONE IS DEFECTIVE REPLACE BOTH TRANSISTORS.LOCATED ON THE DEFL.-PCB. PT#260P422010.
MGA 265	MGA	CS35503	YA0	Power Supply	ALL SWITCHED SUPPLIES LOW	1. CHECK D920 (3-VOLT ZENER) PART # 264P457050, OFF PIN 2 OF IC901 ON THE DEFL. PCB
MGA 266	MGA	CS20301	XM1	Power Supply	HIGH PITCH SQUEAL	1. CHECK C501 LOCATED AT PIN 12 OF IC201,VALUE SHOULD BE (560PF 50V)
MGA 267	MGA	CS20301	XM1	Power Supply	NO POWER UP	1. SUSPECT LEAKY D702. LOCATED ON PCB-MAIN ADJOINING IC701 PIN 64. PT# 264P045040 1S2471 2. CHECK STBY 5V SUPPLY AT "MB" CONNECTOR PIN 11 ON PCB-MAIN. IF LOW, SUSPECT DEFECTIVE IC702 (5V REGULATOR). LOCATED ON PCB-MATRIX. PT# 266P934070
MGA 268	MGA	CS20301	XM1	Power Supply	PIX SHRUNK; WAVY EDGES	1. SUSPECT OPEN C953 (820 UF 180V). LOCATED ON PCB-MAIN AT OUTPUT SIDE OF BRIDGE RECTIFIER D953.
MGA 269	MGA	CS27MX1	XM	Power Supply	HIGH PITCH SQUEAL	1. CHECK C501 LOCATED AT PIN 12 OF IC201,VALUE SHOULD BE (560PF 50V)
MGA 270	MGA	CS27MX1	XM	Power Supply	NO POWER UP	1. SUSPECT LEAKY D702. LOCATED ON PCB-MAIN ADJOINING IC701 PIN 64. PT# 264P045040 1S2471 2. CHECK STBY 5V SUPPLY AT "MB" CONNECTOR PIN 11 ON PCB-MAIN. IF LOW, SUSPECT DEFECTIVE IC702 (5V REGULATOR). LOCATED ON PCB-MATRIX. PT# 266P934070 3. CHECK THE 12V S
MGA 271	MGA	CS27MX1	XM	Power Supply	PIX SHRUNK; WAVY EDGES	1. SUSPECT OPEN C953 (820 UF 180V). LOCATED ON PCB-MAIN AT OUTPUT SIDE OF BRIDGE RECTIFIER D953.
MGA 272	MGA	CS27MX1	XM	Power Supply	PWR SUPPLY BUZZ	1. SUSPECT AC LINE FILTER L901 FAILURE. LOCATED ON PCB-MAIN IN POWER SUPPLY SECTION. PT# 351P900010
MGA 273	MGA	CS27MX1	XM	Power Supply	SHUTS DOWN WTH. ACT. MENU	1. SHUTS DOWN WHEN MENU IS ACTIVATED.CHECK FOR OPEN D210,ON PIN 8 OF THE FLYBACK. LOCATED ON THE MAIN-PCB. PT#264P045040
MGA 274	MGA	CK3531		Raster missing	MGA CK3531. No raster, no sound, no OSD.	After confirming the main power supply was working we found the 2 post regulators on the 16 vdc supply were not warm. The supply voltage was intermittent to the post regulators. It was caused by loose solder connections from the current limited resistors on the input side. R8A1 and R8A3 were poorly soldered and the traces burned because of the IR drop.
MGA 275	MGA	VS5007	V11	shut down	Customer complaint is  shut down at turn on.	Suggest the tech checked C728 a (100mfd@16v on signal board). The capacitor  had a high ESR of over 1k. The tech changed it and now powers on.
MGA 276	MGA	VS5007	V10	Shutdown	Just seconds later turn on the set will shutdown.	Had tech check out the resistance to ground at the anode of D520. It was open, caused by an open fusible resistor in the vertical output circuit. Tech replaced resistor and normal operation was restored
MGA 277	MGA	WS-48511	V21	Shutdown	Unit goes into shutdown.	For shutdown,disconnect CRT Circuit board assemblies. Remove D5A13. If no shutdown then check Q4B01-c for 0 volts-if high set has no vert pulse,Q5A38-c if high set has no horiz pulse.Also check 24V line,and conv.This is not in service info. Thanks to DrJack
MGA 278	MGA	WS55859	V19	Shutdown	SHUTDOWN AT POWER	1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT.
MGA 279	MGA	CK35804	YA2B	System Control Display	JITTER ON STARSIGHT MENU	1. PRESS THE MENU BUTTON FOLLOWED BY 2-3-5-6. USE THE LFT AND RT ADJ BUTTONS TO CHANGE THE HORIZONTAL POSITION UNTIL THE JITTER DISAPPEARS.
MGA 280	MGA	CK35804	YA2B	System Control Display	ANT-B TUNES ONLY ONE CH	1. THE CABLE BOX SETTING IN THE CUSTOMER MENU NEEDS TO BE SET TO NO CABLE BOX, INSTEAD OF A CHANNEL SETTING, IF THE STARSIGHT WAS SET UP WITH A CABLE BOX CONTROL CHANNEL SELECTED, YOU MAY NOT BE ABLE TO CHANGE SETTING WITHOUT FIRST DEAUTHORISING STARSIGHT
MGA 281	MGA	CS35503	YA0	System Control Display	INTERMITTENT POWER UP	1. CHECK Q901 AND Q916 TO BE SHORTED OR LEAKY.IF ONE IS DEFECTIVE REPLACE BOTH TRANSISTORS.LOCATED ON THE DEFL.-PCB. PT#260P422010.
MGA 282	MGA	CS35503	YA0	System Control Display	INT. NO VIDEO/NO OSD	1. INTERMITTENT NO VIDEO AND NO OSD MAY ALSO SHUTDOWN.CHECK FOR 5VPP OF DIGITAL INFORMATION ON PIN 6 OF IC702,IF LOW OR MISSING.CHECK FOR LEAKY D7Q1 ON PIN 19 OF IC2A01 ON THE A/V-PCB. PT#264P502030
MGA 283	MGA	CS3531		tuner	C3531R. Unit does not have any reception below channel CATV 20. All other channels are very snowy and get better in the higher channel groups.	Tech tried to order tuner but not available. The problem cleared up when the antenna was connected directly to the tuner, bypassing the A/B antenna relay switch. Suggest to the tech that he clean the relay contacts to correct this problem. Cleaning of the contacts was accomplished by disassembling the RF switch and passing a thin piece of paper between the closed contacts of the relay. The paper was saturated with a de-ox compound. This corrected the symptom.
MGA 284	MGA	CS35607	ZA	Tuning            IF	NOISE BAR ACROSS PICTURE	1. HORIZONTAL BAR MOSTLY VISIBLE ON ANT."B" WITH DARK PIX. INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES ON HF PWB A.C1Y4 - 220UF @ 16V (ELECTROLYTIC) B.R1Y7 - 8.2KOHM 1/4W C.ENSURE JUMPER #3 HAS INSTALLED A 100 OHM 1/4W RESISTOR
MGA 285	MGA	CK35702	YA2	Tuning            IF	NO TUNING (SNOWY PIC.)	1. CHECK FOR 20V ON PIN 3 OF IC1V1 IF LOW OR MISSING.REPLACE IC1V1 20V REG. LOCATED ON THE HF-PCB. PT#272P872010.
MGA 286	MGA	VS40VA2	VZ1	Tuning IF	AFT Alignment	1. EMPLOY FOLLOWING PROCEDURE FOR AFT ALIGNMENT. ON SIGNAL-PCB, GROUND TP-OE. MONITOR TP-OC WHILE ADJUSTING AFT COIL L106 FOR 2.5V DC. LOCATED ON PCB-SIGNAL AT IC101 PIN 26.
MGA 287	MGA	VS40VA2	VZ1	Tuning IF	Vertical Tuner W/Tuner	1. CHECK C7613 (10UF 16V) FOR LEAKY/SHORTED CONDITION. LOCATED ON PCB-TERMINAL AT IC7602 PIN 4
MGA 288	MGA	VS-4561	VZ1B	Tuning IF	CHANNELS WON'T LOCK	1. SUSPECT DEFECTIVE AFT BUFFER Q104. LOCATED ON PCB-SIGNAL AT IC101 PIN 16. PT# 260P559030
MGA 289	MGA	VS40VA2	VZ1	Tuning IF	AFT Alignment	1. EMPLOY FOLLOWING PROCEDURE FOR AFT ALIGNMENT. ON SIGNAL-PCB, GROUND TP-OE. MONITOR TP-OC WHILE ADJUSTING AFT COIL L106 FOR 2.5V DC. LOCATED ON PCB-SIGNAL AT IC101 PIN 26.
MGA 290	MGA	VS40VA2	VZ1	Tuning IF	Vertical Tuner W/Tuner	1. CHECK C7613 (10UF 16V) FOR LEAKY/SHORTED CONDITION. LOCATED ON PCB-TERMINAL AT IC7602 PIN 4
MGA 291	MGA	VS-4561	VZ1B	Tuning IF	CHANNELS WON'T LOCK	1. SUSPECT DEFECTIVE AFT BUFFER Q104. LOCATED ON PCB-SIGNAL AT IC101 PIN 16. PT# 260P559030
MGA 292	MGA	CS35607	ZA	Tuning IF	NOISE BAR ACROSS PICTURE	1. HORIZONTAL BAR MOSTLY VISIBLE ON ANT."B" WITH DARK PIX. INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES ON HF PWB A.C1Y4 - 220UF @ 16V (ELECTROLYTIC) B.R1Y7 - 8.2KOHM 1/4W C.ENSURE JUMPER #3 HAS INSTALLED A 100 OHM 1/4W RESISTOR
MGA 293	MGA	CK35702	YA2	Tuning IF	NO TUNING (SNOWY PIC.)	1. CHECK FOR 20V ON PIN 3 OF IC1V1 IF LOW OR MISSING.REPLACE IC1V1 20V REG. LOCATED ON THE HF-PCB. PT#272P872010.
MGA 294	MGA	CS20301	XM1	Tuning IF	INTERFERENCE	1. TO MINIMIZE ADJACENT CHANNEL INTERFERENCE APPLY THE FOLLOWING: A. REMOVE L109 (0.68 UH COIL). B. CHANGE R105 FROM 330 OHM TO 680 OHM. C. CHANGE R106 FROM 18 OHM TO 68 OHM. NOTE: IN ADDITION TO THE PRECEDING CHANGES, PERFORM SUBSEQUENT ADJUSTMENTS PER S
MGA 295	MGA	CS20301	XM1	Tuning IF	LOW OR MISSING TUNING VOLTAGE	1. CHECK PIN 6 OF IC7A0 FOR 33 VDC IF LOW OR MISSING CHECK R585 (1.2 OHM 1/2W) AND C583 (10 UFD 100V) OFF PIN 5 OF T551 ON THE MAIN PCB.
MGA 296	MGA	CS27MX1	XM	Tuning IF	LIMITED CHANNELS VHF/UHF	1. CHECK THE 33 VOLT SUPPLY AT THE COLLECTOR OF Q502. IF LOW, SUSPECT A DEFECTIVE CAPACITOR - C583 (10UF 50V). LOCATED AT PIN #5 OF THE FLYBACK TRANSFORMER.
MGA 297	MGA	CS27MX1	XM	Tuning IF	AFT ALIGNMENT	1. USE FOLLOWING PROCEDURE FOR AFT ALIGNMENT: A) SUPPLY NTSC COLOR BAR TO ANTENNA INPUT. CATV INPUT WILL NOT WORK DUE TO OFFSET. B) SELECT GENERATOR CHANNEL ON TV (NORMALLY CH 3). C) ACCESS MENU AND PRESS "007" TO ENTER HIDDEN MENU. D) USE VIDEO UP BUTTON
MGA 298	MGA	CS27MX1	XM	Tuning IF	WON'T TUNE SOME CHS	1. CHECK 33V AT IC7A0 PIN 6. IF LOW, SUSPECT LEAKY/SHORTED C7A1 (33 UF 50V). LOCATED ON PCB-MAIN CONNECTED TO IC7A0 PIN 1 AND 6. 2. CHECK 33V AT IC7A0 PIN 6. IF LOW, SUSPECT LEAKY/SHORTED C563 (10 UF 250V). LOCATED ON PCB-MAIN AT FBT PIN 6.
MGA 299	MGA	CS27MX1	XM	Tuning IF	NO TUNER OPERATION	1. MISSING 33V SOURCE TO Q502 (33V REGULATOR). SUSPECT OPEN R585 (1.2 OHM 1/4W). LOCATED ON PCB-MAIN AT FBT PIN 5.
MGA 300	MGA	CS27MX1	XM	Tuning IF	PIC. ROLLS ON TUNER INPUT	1. CHECK FOR 4V ON PIN 6 OF IC101,IF LOW OR MISSING.CHECK THE VALUE OF C108 (.1UF 50V) ON PIN 6.LOCATED ON THE MAIN-PCB.
MGA 301	MGA	CS27MX1	XM	Tuning IF	INTERFERENCE	1. TO MINIMIZE ADJACENT CHANNEL INTERFERENCE APPLY THE FOLLOWING: A. REMOVE L109 (0.68 UH COIL). B. CHANGE R105 FROM 330 OHM TO 680 OHM. C. CHANGE R106 FROM 18 OHM TO 68 OHM. NOTE: IN ADDITION TO THE PRECEDING CHANGES, PERFORM SUBSEQUENT ADJUSTMENTS PER S
MGA 302	MGA	CS27MX1	XM	Tuning IF	TUNER DRIFTS/WILL NOT AUTO PROGRAM	1. CHECK FOR 5.3V DC ON THE COLLECTOR OF Q703 IF MISSING OR LOW CHECK Q703 AND C713 (4.7UF 50V). LOCATED ON PCB-MATRIX. Q703-:PT#260P560040
MGA 303	MGA	CS20RX1	XL	Tuning IF	DISTORTED PIX	1. SUSPECT OPEN Q705 (2SC1740). LOCATED ON PCB-MAIN AT IC701 PIN 1. PT# 260P559030
MGA 304	MGA	CS20RX1	XL	Tuning IF	AFT ALIGNMENT	1. USE FOLLOWING PROCEDURE FOR AFT ALIGNMENT: A) SUPPLY NTSC COLOR BAR TO ANTENNA INPUT. CATV INPUT WILL NOT WORK DUE TO OFFSET. B) SELECT GENERATOR CHANNEL ON TV. (NORMALLY CH 3) C) MOMENTARILY SHORT PIN 29 TO PIN 32 OF IC701 TO ACCESS MANUAL TUNING MODE
MGA 305	MGA	CS20RX1	XL	Tuning IF	NO TUNER PIX	1. MONITOR 40V DC SUPPLY AT Q502 EMITTER. IF LOW, SUSPECT OPEN D505 (S5500D). LOCATED ON PCB-MAIN AT FBT PIN 5. PT# 264P285010
MGA 306	MGA	VS40VA2	VZ1	Vertical	PIX ROLLS ON DARK SCENES	1. CHECK IC2002 PIN 5 TO CONFIRM 12V INPUT AT PIN 5 AND 9V OUTPUT AT PIN 4. IF OUTPUT LOWER THAN 9V, REPLACE IC2002. LOCATED ON PCB-SIGNAL. PT# 267P076020
MGA 307	MGA	VS40VA2	VZ1	Vertical	NO VERT DEFLECTION	1. CHECK FOR OPEN R510 (1.2 OHM 1/2 W) OFF PIN 5 OF T501, ON THE MAIN PCB.
MGA 308	MGA	VS-4541	VZ2	Vertical	NO VERTICAL SWEEP	1. CHECK FOR 34V ON PIN 6 OF IC401. IF LOW OR MISSING, CHECK FOR OPEN L542 ON THE CATHODE OF D505. LOCATED ON THE MAIN-PCB. 2.CHECK FOR 2VDC AT PIN 4 IC401, IF MISSING CHECK IC9A2 (14 V REGULATOR), ON THE MAIN PCB. PART# 267P076010 3. CHECK FOR 34V ON PIN
MGA 309	MGA	VS-4541	VZ2	Vertical	VERT FOLDOVER/RED ONLY	1. VERTICAL FOLDOVER IN RED CRT ONLY. CHECK FOR A LEAKY DIODE (D2011) OFF OF Q2015 EMITTER ON SIGNAL PWB. (PT #264P045040-1S2471OM)
MGA 310	MGA	VS-4541	VZ2	Vertical	VERTICAL SEPERATION AT TOP OF SCREEN	1. CHECK THE VALUE OF R413 330 OHM 1/4 W, IN THE VERTICAL OUTPUT CIRCUIT ON THE MAIN PCB.
MGA 311	MGA	VS4543	VZ3	Vertical	INTERMITTENT VERTICAL JITTER	1. REMOVE L215 (OFF PIN 35 OF IC200) FROM THE COMPONENT SIDE OF THE SIGNAL PCB AND MOVE IT TO THE FOIL SIDE OF THE BOARD. MOUNT IT SO THAT THE COIL IS TILTED AWAY FROM THE LOCATION MARKING FOR L215. SECURE THE COMPONENT WITH SILICONE. 2. FOR VERTICAL JITT
MGA 312	MGA	VS4543	VZ3	Vertical	NO VERTICAL DEFLECTION	1. CHECK PIN 4 OF IC401 FOR 3 VDC IF MISSING CHECK IC202 (5V REG) PART # 266P932010, ON THE SIGNAL PCB. 2. MAY BE INTERMITTENT. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES.
MGA 313	MGA	VS40VA2	VZ1	Vertical	PIX ROLLS ON DARK SCENES	1. CHECK IC2002 PIN 5 TO CONFIRM 12V INPUT AT PIN 5 AND 9V OUTPUT AT PIN 4. IF OUTPUT LOWER THAN 9V, REPLACE IC2002. LOCATED ON PCB-SIGNAL. PT# 267P076020
MGA 314	MGA	VS40VA2	VZ1	Vertical	NO VERT DEFLECTION	1. CHECK FOR OPEN R510 (1.2 OHM 1/2 W) OFF PIN 5 OF T501, ON THE MAIN PCB.
MGA 315	MGA	VS-4541	VZ2	Vertical	NO VERTICAL SWEEP	1. CHECK FOR 34V ON PIN 6 OF IC401. IF LOW OR MISSING, CHECK FOR OPEN L542 ON THE CATHODE OF D505. LOCATED ON THE MAIN-PCB. 2.CHECK FOR 2VDC AT PIN 4 IC401, IF MISSING CHECK IC9A2 (14 V REGULATOR), ON THE MAIN PCB. PART# 267P076010 3. CHECK FOR 34V ON PIN
MGA 316	MGA	VS-4541	VZ2	Vertical	VERT FOLDOVER/RED ONLY	1. VERTICAL FOLDOVER IN RED CRT ONLY. CHECK FOR A LEAKY DIODE (D2011) OFF OF Q2015 EMITTER ON SIGNAL PWB. (PT #264P045040-1S2471OM)
MGA 317	MGA	VS-4541	VZ2	Vertical	VERTICAL SEPERATION AT TOP OF SCREEN	1. CHECK THE VALUE OF R413 330 OHM 1/4 W, IN THE VERTICAL OUTPUT CIRCUIT ON THE MAIN PCB.
MGA 318	MGA	VS4543	VZ3	Vertical	INTERMITTENT VERTICAL JITTER	1. REMOVE L215 (OFF PIN 35 OF IC200) FROM THE COMPONENT SIDE OF THE SIGNAL PCB AND MOVE IT TO THE FOIL SIDE OF THE BOARD. MOUNT IT SO THAT THE COIL IS TILTED AWAY FROM THE LOCATION MARKING FOR L215. SECURE THE COMPONENT WITH SILICONE. 2. FOR VERTICAL JITT
MGA 319	MGA	VS4543	VZ3	Vertical	NO VERTICAL DEFLECTION	1. CHECK PIN 4 OF IC401 FOR 3 VDC IF MISSING CHECK IC202 (5V REG) PART # 266P932010, ON THE SIGNAL PCB. 2. MAY BE INTERMITTENT. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES.
MGA 320	MGA	VS45605	VZ7	Vertical	SHUTDOWN	1. MAY BE INTERMITTENT, SELF-DIAGNOSIS ERROR 23 OR 24. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES. 2. SHUTDOWN AT POWER WITH SELF-DIAGNOSIS ERROR 23 OR 24. CHECK C411 2200 UFD 35 V AND C412 10 UFD 50 V, BOTH LOCATED ON THE MAIN PCB.
MGA 321	MGA	VS45605	VZ7	Vertical	POOR VERTICAL SYNC	1. VERTICAL ROLLING, VERTICAL BLANKING BAR LOCKING IN THE MIDDLE OF THE PICTURE, ALSO MAY HAVE HORIZONTAL PULLING OR TEARING. CHECK C2C52 10 UFD @ 50 V OFF THE BASE OF Q2C51 ON THE SIGNAL PCB. 2. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 AND IC2P01 PAR
MGA 322	MGA	VS45605	VZ7	Vertical	VERTICAL JITTER	1. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 AND IC2P01 PART # 270P466020 (9-VOLT REGULATOR). BOTH ARE ON THE SIGNAL PCB.
MGA 323	MGA	VS45607	VZ8	Vertical	VERTICAL JITTER	1. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 AND IC2P01 PART # 270P466020 (9-VOLT REGULATOR). BOTH ARE ON THE SIGNAL PCB
MGA 324	MGA	VS45607	VZ8	Vertical	SHUTDOWN	1. MAY BE INTERMITTENT, SELF-DIAGNOSIS ERROR 23 OR 24. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES. 2. SHUTDOWN AT POWER WITH SELF-DIAGNOSIS ERROR 23 OR 24. CHECK C411 2200 UFD 35 V AND C412 10 UFD 50 V, BOTH LOCATED ON THE MAIN PCB.
MGA 325	MGA	VS-4571	V13	vertical	no vertical deflection	1. CHECK FOR LEAKY OR SHORTED C5A1 OR C5A2,BOTH ARE (2.2UF 50V) ON PIN 2 OF IC5A0.LOCATED ON THE SIDE-PIN-PCB
MGA 326	MGA	VS-4571	V13	vertical	ringing in pix	1. VISIBLE AT TOP OF PICTURE. CHANGE C411 (3300PF 50V POLY) TO (2700PF 50V POLY). SILICONE MOUNT ON FOIL SIDE OF PCB. LOCATED ON PCB-MAIN AT IC401 PIN 7.
MGA 327	MGA	VS-4571	V13	vertical	pix rolls on dark scenes	1. CHECK IC2002 PIN 5 TO CONFIRM 12V INPUT AT PIN 5 AND 9V OUTPUT AT PIN 4. IF OUTPUT LOWER THAN 9V, REPLACE IC2002. LOCATED ON PCB-SIGNAL. PT# 267P076020
MGA 328	MGA	VS-4571	V13	vertical	vert/horiz instablilty	1. VERT JITTER/HORZ UNSTABLE-CHECK 'GE' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'GE' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C7014, C7026, C7036) AND ALL CONNECTING TRACES TO THESE CAPS FOR CONTINUITY 2. HORIZONTAL TEARING, VERTICAL JITTER. SIGNAL RELATED CONDITION. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
MGA 329	MGA	VS-5073	V13B	vertical	pix rolls on dark scened	1. CHECK IC216 PIN 5 TO CONFIRM 12V INPUT AT PIN 5 AND 9V OUTPUT AT PIN 4. IF OUTPUT LOWER THAN 9V, REPLACE IC216. LOCATED ON PCB-SIGNAL. PT# 267P076020
MGA 330	MGA	VS-5073	V13B	vertical	vert/horz instability	1. HORIZONTAL TEARING, VERTICAL JITTER. SIGNAL RELATED CONDITION. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
MGA 331	MGA	TS-50811	V14B	vertical	vertical jitter	1. INSTALL VERTICAL JITTER KIT, PART # KIT-V14VJ
MGA 332	MGA	TS-5087	V14	vertical	vertical jitter	1. INSTALL VERTICAL JITTER KIT, PART # KIT-V14VJ
MGA 333	MGA	CK32308	ZM	Vertical	NO VERTICAL	1. CHECK L451 (2UH) FOR OPEN CONDITION. LOCATED OFF PIN 2 OF IC451 ON THE MAIN PCB. PT# 321C130010
MGA 334	MGA	CK32308	ZM	Vertical	VERTICAL STRETCHED AT TOP	CHECK C975 (1000uf 50V) LOCATED AT CATHODE OF D961 ON THE DEFL PCB
MGA 335	MGA	CK35702	YA2	Vertical	VERTICAL ROLL OR JITTER	1. VERT JITTER/HORZ UNSTABLE - CHECK 'VP' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'VP' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C701
MGA 336	MGA	CS35601	YA1	Vertical	VERTICAL ROLL OR JITTER	1. VERT JITTER/HORZ UNSTABLE - CHECK 'VP' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'VP' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C701
MGA 337	MGA	CS35601	YA1	Vertical	VERT.JITTER W/PREREC TAPE	1. VERT JITTER WITH PRE-RECORDED VIDEO TAPE INPUT.CHECK FOR A DEFECTIVE C231 LOCATED BETWEEN IC202 PIN 9 AND IC203 PIN 15. (1UF @ 50V)
MGA 338	MGA	CK35804	YA2B	Vertical	INT VERT ROLL	1. INTERMITTENT VERTICAL ROLL OR JITTER ON SCENE CHANGE, CHECK C6W16 10 UFD 25V OFF PIN 16 OF IC6W01 ON THE SIGNAL PCB.
MGA 339	MGA	CK35804	YA2B	Vertical	VERT JITTER W/PREREC TAPE	1. VERTICAL JITTER WITH PRE-RECORDED TAPE INPUT.CHECK FOR A DEFECTIVE C-6M15. LOCATED BETWEEN IC6R01 PIN 9 AND IC6M01 PIN 15. (1UF @ 50V)
MGA 340		CS35503	YA0	Vertical	REPEATED FAILURE OF IC401	1. CHECK FOR SHORTED OR LEAKY C471 (.01UF 50V),ON PIN 2 OF IC401.LOCATED ON THE DEFL-PCB.
MGA 341		CS35503	YA0	Vertical	BLACK LINE AT TOP OF PIC.	1. BLACK LINE AT THE TOP OF THE PICTURE,OCCURS AFTER WARM UP.CHECK FOR 32VDC ON PIN 6 OF IC401 AND 1VP-P VERTICAL DRIVE PULSE AT PIN 4.IF THAY ARE GOOD REPLACE IC401. PT#270P064010
MGA 342	MGA	CK32308	ZM	Vertical	NO VERTICAL	1. CHECK L451 (2UH) FOR OPEN CONDITION. LOCATED OFF PIN 2 OF IC451 ON THE MAIN PCB. PT# 321C130010
MGA 343	MGA	CK32308	ZM	Vertical	VERTICAL STRETCHED AT TOP	CHECK C975 (1000uf 50V) LOCATED AT CATHODE OF D961 ON THE DEFL PCB
MGA 344	MGA	CK35702	YA2	Vertical	VERTICAL ROLL OR JITTER	1. VERT JITTER/HORZ UNSTABLE - CHECK 'VP' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'VP' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C701
MGA 345	MGA	CS35601	YA1	Vertical	VERTICAL ROLL OR JITTER	1. VERT JITTER/HORZ UNSTABLE - CHECK 'VP' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'VP' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C701
MGA 346	MGA	CS35601	YA1	Vertical	VERT.JITTER W/PREREC TAPE	1. VERT JITTER WITH PRE-RECORDED VIDEO TAPE INPUT.CHECK FOR A DEFECTIVE C231 LOCATED BETWEEN IC202 PIN 9 AND IC203 PIN 15. (1UF @ 50V)
MGA 347	MGA	CK35804	YA2B	Vertical	INT VERT ROLL	1. INTERMITTENT VERTICAL ROLL OR JITTER ON SCENE CHANGE, CHECK C6W16 10 UFD 25V OFF PIN 16 OF IC6W01 ON THE SIGNAL PCB.
MGA 348	MGA	CK35804	YA2B	Vertical	VERT JITTER W/PREREC TAPE	1. VERTICAL JITTER WITH PRE-RECORDED TAPE INPUT.CHECK FOR A DEFECTIVE C-6M15. LOCATED BETWEEN IC6R01 PIN 9 AND IC6M01 PIN 15. (1UF @ 50V)
MGA 349	MGA	CS35503	YA0	Vertical	REPEATED FAILURE OF IC401	1. CHECK FOR SHORTED OR LEAKY C471 (.01UF 50V),ON PIN 2 OF IC401.LOCATED ON THE DEFL-PCB.
MGA 350	MGA	CS35503	YA0	Vertical	BLACK LINE AT TOP OF PIC.	1. BLACK LINE AT THE TOP OF THE PICTURE,OCCURS AFTER WARM UP.CHECK FOR 32VDC ON PIN 6 OF IC401 AND 1VP-P VERTICAL DRIVE PULSE AT PIN 4.IF THAY ARE GOOD REPLACE IC401. PT#270P064010
MGA 351	MGA	CS20301	XM1	Vertical	NO VERT DEFLECTION	1. CHECK 12V SUPPLY AT VERTICAL IC401 PIN 1. IF MISSING, SUSPECT OPEN COIL L511 (1000 UH). LOCATED ON PCB-MAIN AT IC401 PIN 1. PT# 325C108070 2. CHECK THE V-PULSE AT IC401 PIN 2, SHOULD BE 3.5 VPP. IF LOW OR MISSING CHECK FOR V-PULSE AT PIN 6 OF IC201.IF
MGA 352	MGA	CS27MX1	XM	Vertical	VERTICAL ROLL OR JITTER	1. VERT JITTER/HORZ UNSTABLE - CHECK 'VP' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'VP' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C701
MGA 353	MGA	CS27MX1	XM	Vertical	VERT COLLAPSE	1. SUSPECT LEAKY/OPEN C450 (220UF 25V). LOCATED ON PCB-MAIN AT IC401 PIN 1.
MGA 354	MGA	CS27MX1	XM	Vertical	NO VERTICAL SWEEP	1.CHECK THE V-PULSE AT IC401 PIN 2, SHOULD BE 3.5 VPP. IF LOW OR MISSING CHECK FOR V-PULSE AT PIN 6 OF IC201.IF GOOD DISCONNECT PIN 5 OF IC2004 IF THE PULSE RETURNS ON PIN 2 OF IC401,REPLACE IC2004.ON THEMAIN-PCB. PT#266P064010
MGA 355	MGA	CS20RX1	XL	Vertical	VERTICAL OVERSCAN	1. SUSPECT OPEN C405 (1UF 25V). LOCATED ON PCB-MAIN AT IC401 PIN 6.
MGA 356	MGA	VS50VA2	V12	vertical jitter	MGA VS50VA2. Unit has intermittent vertical jitter. When the chassis was slip out of cabinet the set developed a no raster with sound condition. Unit has no filaments	Missing 5 volt to PIP module. The trouble for the filaments was caused by a small 2 pin connector at the Green CRT. The connector pulled out from the board when the main chassis was pulled back.
MGA 357	MGA	CK3526		vertical sweep	MGA CK3526. Insufficient vertical sweep. Tech changed the vertical output IC and several capacitors in the circuit.	Tech did change the charge pump capacitor located between pins 9 and 13 of the LA3878 vertical output but the charge pump diode located between Pin 8 and 13 must also be changed. After replacement of diode unit work fine.
MGA 358	MGA	VS5007	V11	vertical sync	When the set is cold and just turned on. The raster had full vertical sweep, however the vertical blanking bar could be seen in the center of the picture. It locked at exactly a half-frame. When the set warmed for just a few minutes it slowly moved up and locked in properly for as long as it ran that day.	Suggest tech check or replace the following; Replace C2814 10/50 Located On Pcb-Video Towards Rear Of Chassis
MGA 359	MGA	CS35607	ZA	Video Color	NO VIDEO	1. CHECK IC6F01 PIN 8 (BLUE), PIN 6 GREEN, AND PIN 5 (RED) FOR 3VPP SIGNAL IF MISSING CONFIRM 3 VPP INPUTS AT PINS 1,2 AND 3, IF PRESENT. REPLACE IC6F01 PART # 272P027010. AND ADD A DIODE (1S2471M) PART # 264P045040. INSTALLED WITH THE ANODE CONNECTED TO
MGA 360	MGA	CS35607	ZA	Video Color	REPEAT FAILURE OF IC6F01	1. AFTER REPLACING IC6FO1 PART # 272P027010 ADD A DIODE (1S2471M) PART # 264P045040 WITH THE ANODE CONNECTED TO THE ANODE OF D6XA1 AND THE CATHODE CONNECTED TO THE CATHODE OF D6F04.
MGA 361	MGA	CS35607	ZA	Video Color	NO BLUE, GREEN, AND/OR RED	1. CHECK PIN 8 OF IC6F01 FOR 3 VPP BLUE SIGNAL, PIN 6 FOR GREEN AND 5 FOR RED. IF MISSING CONFIRM INPUT AT PINS 3 BLUE, 2 GREEN AND 1 RED. IF PRESENT REPLACE IC6F01 PART # 272P027010 AND ADD A DIODE (1S2471M) PART # 264P045040. INSTALLED WITH THE ANODE CO
MGA 362	MGA	CS35607	ZA	Video Color	NOISE IN PIX	1. NOISE IN PIX DUE TO COMPONENT TOLERENCE.INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES, ON SIGNAL PWB.: A. C6XA2 - 120 PF @ 50V B. L6XA2 - 15 MH COIL C. R6XA6 - 22 OHM 1/4W THIS PROBLEM MAY BE VALID WITH COLOR AND B/W VIDEO.
MGA 363	MGA	CS35607	ZA	Video Color	NOISE BAR ACROSS PICTURE	1. HORIZONTAL BAR MOSTLY VISIBLE ON ANT."B" WITH DARK PIX. INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES ON HF PWB A.C1Y4 - 220UF @ 16V (ELECTROLYTIC) B.R1Y7 - 8.2KOHM 1/4W C.ENSURE JUMPER #3 HAS INSTALLED A 100 OHM 1/4W RESISTOR
MGA 364	MGA	CS27205	YM0	Video Color	NO VIDEO OR OSD	1. CHECK FOR 8 VPP HORIZONTAL PULSE AT PIN 22 OF IC200. IF LOW OR MISSNING CHECK R585 1.2 OHM 1/4 W OFF PIN 5 OF THE FLYBACK, ON THE MAIN PCB. 2. CHECK FOR THE BASE OF Q651 FOR 13 VDC IF LOW OR MISSING CHECK R680 100K 1/4 WATT, ON THE CRT PCB
MGA 365	MGA	CS27205	YM0	Video Color	N0 LUMINANCE	1. CHECK FOR OPEN DL-2032 PART # 337P189010, OFF THE BASE OF Q2030 ON THE MAIN PCB.
MGA 366	MGA	CK35702	YA2	Video Color	DARK TO NO VIDEO AND OSD	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q605 TO BE SHORTED OR LEAKY, PART # 260P560040. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 367	MGA	CK35702	YA2	Video Color	NO VIDEO	1. NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH
MGA 368	MGA	CS35601	YA1	Video Color	NO VIDEO	1.NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH I
MGA 369	MGA	CS35601	YA1	Video Color	DARK TO NO VIDEO AND OSD	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q605 TO BE SHORTED OR LEAKY, PART # 260P560040. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 370	MGA	CK35804	YA2B	Video Color	FLASHING GREEN IN PIC.	1. GREEN FLASHING IN THE PICTURE,CHECK THE VALUE OF C6A39 (.1UF 50V) ON PIN 39 OF IC6A01.LOCATED ON THE SIGNAL-PCB.
MGA 371	MGA	CK35804	YA2B	Video Color	DARK OR NO VIDEO	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q6C2 TO BE SHORTED OR LEAKY, PART # 260P559030. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 372	MGA	CS35503	YA0	Video Color	INT. NO VIDEO/NO OSD	1. INTERMITTENT NO VIDEO AND NO OSD MAY ALSO SHUTDOWN.CHECK FOR 5VPP OF DIGITAL INFORMATION ON PIN 6 OF IC702,IF LOW OR MISSING.CHECK FOR LEAKY D7Q1 ON PIN 19 OF IC2A01 ON THE A/V-PCB. PT#264P502030
MGA 373	MGA	CS35503	YA0	Video Color	SVHS ROLL ON SCENE CHANGE	1 1. C-2A01 AND C-3001 ON THE A/V PCB ARE INCORRECTLY LABELED, SWAP LOCATIONS OF C-2A01 AND C-3001. ON THE PCB C-2A01 SHOULD BE 1UFD 5OV AND C-3001 SHOULD BE 10UFD 50V.
MGA 374	MGA	CS35503	YA0	Video Color	NO VIDEO AT WHEN COLD	1. CHECK FOR A LEAKY OR SHORTED DIODE, D251. LOCATED AT THE BASE OF Q290. PART NUMBER FOR DIODE 264P045040
MGA 375	MGA	CS35503	YA0	Video Color	VIDEO BLANKS AFTER 20MIN.	1. CHECK FOR THE LOSS OF CONTINUITY BETWEEN 'HD' CONNECTOR ON THE DEFL- PCB ON THE 'HD' CONNECTOR ON THE CRT-PCB.
MGA 376	MGA	CS35503	YA0	Video Color	WAVING ON B/W PIX	1. DISCONNECT ONE LEG OF C471 (THE SIDE CONNECTED TO L462) ON THE PCB- DEFL,AND SOLDER A 4.7OHM, 1/4W, 5% CARBON RESISTOR IN SERIES WITH C471 (0.01UF, 100V). SECURE WITH SILICONE GLUE (P/N 859D106020) AVOIDING THE HEATSINK OF IC401 AT ALL COSTS.
MGA 377	MGA	CS35503	YA0	Video Color	BLACK LINE AT TOP OF PIC.	1. BLACK LINE AT THE TOP OF THE PICTURE,OCCURS AFTER WARM UP.CHECK FOR 32VDC ON PIN 6 OF IC401 AND 1VP-P VERTICAL DRIVE PULSE AT PIN 4.IF THAY ARE GOOD REPLACE IC401. PT#270P064010
MGA 378	MGA	CS35503	YA0	Video Color	DARK TO NO VIDEO AND OSD	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q6C2 TO BE SHORTED OR LEAKY, PART # 260P559030. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 379	MGA	WS55809	V18	video color	Shading non-uniform grayscale	1. THE SYMPTOM IS BRIGHTER IMAGE ON THE SIDES AND DARKER IN THE MIDDLE. THE PROBLEM CAN BE WITH RED BLUE AND/OR GREEN. CHECK FOR PROPER CONNECTIONS TO THE "DAG COATING AND CONNECTIONS TO PIN 9 ON THE SOCKET OF THE AFFECTED CRT. MAKE SURE THESE GROUND POINTS ARE COMMON WITH CHASSIS GROUND.
MGA 380	MGA	WS55809	V18	video color	vertical bars	1. MAY HAVE A PURPLE/PINKISH BACKGROUND WITH VERTICAL BARS GOING THROUGH THE PICTURE. 1080I HD SIGNAL AND 480P COMPONENT IN STANDARD FORMAT WILL NOT BE AFFECTED. TO CORRECT THIS COMPLAINT THE 2HDW PWB NEEDS TO BE REPLACED. PT# 935C966001
MGA 381	MGA	VS40VA2	VZ1	Video Color	INTERFERES W/OTHER SETS	1. CHANGING EXISTING COAX CABLE TO RG-6U SHOULD REDUCE OR ELIMINATE INTERFERENCE
MGA 382	MGA	VS40VA2	VZ1	Video Color	PIX ROLLS ON DARK SCENES	1. CHECK IC2002 PIN 5 TO CONFIRM 12V INPUT AT PIN 5 AND 9V OUTPUT AT PIN 4. IF OUTPUT LOWER THAN 9V, REPLACE IC2002. LOCATED ON PCB-SIGNAL. PT# 267P076020
MGA 383	MGA	VS40VA2	VZ1	Video Color	PIX UNSTABLE	1. VERT JITTER/HORZ UNSTABLE-CHECK 'GE' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'GE' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C7014,
MGA 384	MGA	VS40VA2	VZ1	Video Color	NO EXT VID (REAR)	1. NO LOGIC SWITCHING AT IC7602 PINS 2 AND 3. SUSPECT OPEN R786 (100 OHM 1/2W) INTERRUPTING DATA TRANSFER BETWEEN IC701 PIN 18 AND IC7606 PIN 2. LOCATED ON PCB-UCOM AT BASE OF Q705.
MGA 385	MGA	VS40VA2	VZ1	Video Color	RED RETRACE	1. CHECK THE VALUE OF R6H3 (2.2 MEG 1/2W). LOCATED ON RED CRT-PCB BETWEEN VR6A5 (G-2 CONTROL) AND GROUND 2. CHECK R6G0 2.2 K 1/4 W (G-1 RESISTER) ON THE RED CRT PCB
MGA 386	MGA	VS40VA2	VZ1	Video Color	POOR VIDEO	1. SUSPECT LEAKY/SHORTED Q2D0 (2SC2603). LOCATED ON PCB-SIGNAL CONNECTED TO IC201 PIN 41. PT# 260P559030
MGA 387	MGA	VS40VA2	VZ1	Video Color	BLUE RETRACE	1. CHECK THE VALUE OF R6H5 (2.2 MEG 1/2W). LOCATED ON BLUE CRT-PCB BETWEEN VR6A7 (G-2 CONTROL) AND GROUND 2. CHECK R6G2 2.2 K 1/4 W (G-1 RESISTER) ON THE BLUE CRT PCB
MGA 388	MGA	VS40VA2	VZ1	Video Color	GREEN RETRACE	1. CHECK THE VALUE OF R6H4 (2.2 MEG 1/2W). LOCATED ON GREEN CRT-PCB BETWEEN VR6A6 (G-2 CONTROL) AND GROUND. 2. CHECK R6G1 2.2 K 1/4 W (G-1 RESISTER) ON THE GREEN CRT PCB.
MGA 389	MGA	VS40VA2	VZ1	Video Color	NO VIDEO	1. NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH
MGA 390	MGA	VS-4541	VZ2	Video Color	GREEN WITH RETRACE	1. CHECK THE VALUE OF R60H4 AND R60H7 BOTH 1 MEG 1/2W. LOCATED ON GREEN CRT-PCB BETWEEN VR60A6 (G-2 CONTROL) AND GROUND 2. CHECK R60G1 2.2 K 1/4 W (G-1 RESISTER) ON THE GREEN CRT PCB
MGA 391	MGA	VS-4541	VZ2	Video Color	RED WITH RETRACE	1. CHECK THE VALUE OF R60H3 AND R60H6 BOTH 1 MEG 1/2W. LOCATED ON RED CRT-PCB BETWEEN VR60A5 (G-2 CONTROL) AND GROUND. 2. CHECK R60G0 2.2 K 1/4 W (G-1 RESISTER) ON THE RED CRT PCB.
MGA 392	MGA	VS-4541	VZ2	Video Color	NO VIDEO WITH INTERMITTENT SHUTDOWN	1. CHECK THE ACL VOLTAGE AT PIN 16 OF IC201 FOR 1.7VDC IF MISSING OR VOLTAGE IS NEGATIVE, CHECK FOR LEAKEY Q570 PART # 260P560040 ON THE MAIN PCB
MGA 393	MGA	VS-4541	VZ2	Video Color	EXCESSIVE BRIGHTNESS AND SHUTDOWN	1. CHECK THE VALUE OF R9A45 (180 OHM 1/2W),LOCATED ON THE MAIN-PCB NEXT TO D9A07. PT#103P391060. THIS CAN CAUSE ETCHING OF CRT PHOSPHORS
MGA 394	MGA	VS-4541	VZ2	Video Color	BLUE WITH RETRACE	1. CHECK THE VALUE OF R60H5 AND R60H8 BOTH 1 MEG 1/2W. LOCATED ON BLUE CRT-PCB BETWEEN VR60A7 (G-2 CONTROL) AND GROUND. 2. CHECK R60G2 2.2 K 1/4 W (G-1 RESISTER) ON THE BLUE CRT PCB. 3. PICTURE HAS HEAVY BLUE OVER CAST WITH RETRACE.CHECK GROUND CONNECTOR
MGA 395	MGA	VS-4541	VZ2	Video Color	NO VIDEO OR AUDIO	1. INITIALIZE THE SYSTEM CONTROL. WITH THE REMOTE CONTROL PRESS "MENU 2, 3, 5, 8, " USE THE ADJUST BUTTON TO SELECT "INITIAL" AND PRESS "ENTER".
MGA 396	MGA	VS-4541	VZ2	Video Color	INT. BRIGHT SCREEN	1. INTERMITTENT BRIGHT SCREEN WITH RETRACE.CHECK FOR CONTINUITY BETWEEN PIN (1) OF THE 'TR' CONNECTOR, AND PIN(1) OF THE 'DR' CONNECTOR. 'TR' IS LOCATED ON THE RED-CRT-PCB 'DR' IS LOCATED ON THE MAIN-PCB
MGA 397	MGA	VS-4541	VZ2	Video Color	PULSING RED WITH RETRACE	CHECK C60A0 (1 UFD 350V) ON THE RED CRT PCB.
MGA 398	MGA	VS-4541	VZ2	Video Color	NO VIDEO	1. CHECK FOR 1V P-P OF VIDEO ON PIN 43 OF IC7A01.IF LOW OR MISSING CHECK FOR SHORTED D726 (7.2V ZENER) ON PIN 15 OF THE 'GA' CONNECTOR. LOCATED ON THE FS-PCB. PT#264P485060 2. CHECK THE VALUE OF R509 AND R519 BOTH (100 OHM 1/2 W),LOCATED ON THE ON THE G2-
MGA 399	MGA	VS-4541	VZ2	Video Color	GOES RED AND SHUTSDOWN	1. PICTURE GOES RED AND SHUTSDOWN. CHECK THE VALUE OF R6G0 (2.2K 1/4W) LOCATED ON THE RED CRT-PCB.
MGA 400	MGA	VS-4541	VZ2	Video Color	NO VIDEO OR OSD	1. CHECK THE VALUE OF R509 AND R519 BOTH (100 OHM 1/2 W),LOCATED ON THE ON THE G2-P.C.B. PT#103P391030 2. CHECK FOR 34V ON PIN 6 OF IC401. IF LOW OR MISSING, CHECK FOR OPEN L542 ON THE CATHODE OF D505. LOCATED ON THE MAIN-PCB. 3.CHECK FOR 2VDC AT PIN 4 IC
MGA 401	MGA	VS-4541	VZ2	Video Color	BLACK BARS TOP 6" OF SCREEN	1. CHECK THE VALUE OF R413 330 OHM 1/4 W, IN THE VERTICAL OUTPUT CIRCUIT ON THE MAIN PCB.
MGA 402	MGA	VS4543	VZ3	Video Color	INTERMITTENT NO VIDEO AT TURN ON	1. IMPROPER CRT BIAS CAN CAUSE AKB BLANKING. DO CRT CUTOFF BIAS ALIGNMENTS PER THE SERVICE OR TRAINING MANUAL.
MGA 403	MGA	VS4543	VZ3	Video Color	DISTORTION DURING ON/OFF	1. RASTER DISTORTION DURING POWER ON/OFF.CHANGE THE VALUE OF C813 (33UF 16V) TO (10UF 50V).C813 IS LOCATED ON THE CONV-PWB
MGA 404	MGA	VS4543	VZ3	Video Color	BLACK BARS ACROSS PICTURE	1. CHECK FOR OPEN C933 (100 UFD 35V) ON THE 15V SUPPLY OFF T900 ON THE MAIN PCB.
MGA 405	MGA	VS4543	VZ3	Video Color	EXCESSIVE BRIGHTNESS	1. CHECK FOR LEAKY Q6R1 (RED CRT PCB), Q6G1 (GREEN CRT PCB) AND/OR Q6B1 (BLUE CRT PCB). PART # 260P627020
MGA 406	MGA	VS4543	VZ3	Video Color	NO VIDEO OR OSD	1. CHECK BASE BIAS VOLTAGE OF Q217, FOR 0 VDC (BIASED OFF) IF .7 VDC (BIASED ON) CHECK C268 (22 UFD 50 V) OFF C OF Q215 V-PROTECTOR ON THE SIGNAL PCB. 2. VERTICAL BEAM BLANKING ACTIVE, CHECK PIN 4 OF IC401 FOR 3 VDC IF MISSING CHECK IC202 (5V REG) PART #
MGA 407	MGA	VS4543	VZ3	Video Color	NO VIDEO	1. CHECK BASE BIAS VOLTAGE OF Q217, FOR 0 VDC (BIASED OFF) IF .7 VDC (BIASED ON) CHECK C268 (22 UFD 50 V) OFF C OF Q215 V-PROTECTOR ON THE SIGNAL PCB.
MGA 408	MGA	WS65903	V15	video color	LINES IN THE VIDEO	1. CHECK CONNECTOR "RH" TO "TH" BETWEEN THE R G B PCB AND DOUBLER PCB FOR OPEN OR INTERMITTENT CONNECTOR
MGA 409	MGA	WS65903	V15	video color	NO VIDEO OR OSD, AUDIO OK	1. CHECK D564 ON THE FOIL SIDE OF THE MAIN PCB IN THE HIGH VOLTAGE OUTPUT CIRCUIT. IT SHOULD BE MOUNTED WITH THE ANODE TO THE GATE OF Q530. IF IN BACKWARD REPLACE D564 PART # 264P045050 (MAKING SURE THE ANODE IS CONNECTED TO GATE OF Q530) AND Q530 PART # 261P082010, ON THE MAIN PCB. 2. CHANGE R539 FROM 1K TO 470 OHMS, CHANGE C536 FROM 10 UF TO 22 UF, CHANGE R531 FROM 0.12 TO 0.15 OHMS, REPLACE IC500 PART # 267P143010. 3. NO FILAMENT VOLTAGE TO THE CRT'S. CHECK IC9A21 PART # 267P076030 ON THE MAIN PCB.
MGA 410	MGA	WS65903	V15	video color	INTERMITTENT NO "Y" COLOR PRESENT	1. CHECK CONNECTOR "GL" FOR PROPER CONNECTION, ON THE DOUBLER PCB
MGA 411	MGA	WS65903	V15	video color	EXCESSIVE, DISTORTED, OR MISSING BLUE	1. CHECK Q2A23 PART # 260P533010 ON THE R G B PCB AND Q6B02 PART # 260P696010 ON THE BLUE CRT PCB. IF EITHER ARE BAD CHANGE THE VALUE OF C6B11 ON THE BLUE CRT PCB FROM 1000 PF TO 150 PF @3.15KV PART # 154P264000, (SEE SERVICE TIP VS-70) 2. CHECK FOR PROPER CONNECTION AT CONNECTOR "GK" BETWEEN THE SIGNAL AND RGB PCB'S AND CONNECTOR "RH" ON THE RGB PCB TO CONNECTOR "TH" ON THE DOUBLER PCB
MGA 412	MGA	WS65903	V15	video color	EXCESSIVE, DISTORTED, OR MISSING GREEN	1. CHECK Q2A13 PART # 260P533010 ON THE R G B PCB AND Q6G02 PART # 260P696010 ON THE GREEN CRT PCB. IF EITHER ARE BAD CHANGE THE VALUE OF C6G11 ON THE GREEN CRT PCB FROM 1000 PF TO 150 PF @3.15KV PART # 154P264000. (SEE SERVICE TIP VS-70) 2. CHECK FOR PROPER CONNECTION AT CONNECTOR "GK" BETWEEN THE SIGNAL AND RGB PCB'S AND CONNECTOR "RH" ON THE RGB PCB TO CONNECTOR "TH" ON THE DOUBLER PCB.
MGA 413	MGA	WS65903	V15	video color	EXCESSIVE, DISTORTED, OR MISSING RED	1. CHECK Q2A03 PART # 260P533010 ON THE R G B PCB AND Q6R02 PART # 260P696010 ON THE RED CRT PCB. IF EITHER ARE BAD CHANGE THE VALUE OF C6R11 ON THE RED CRT PCB FROM 1000 PF TO 150 PF @3.15KV PART # 154P264000. (SEE SERVICE TIP VS-70) 2. CHECK FOR PROPER CONNECTION AT CONNECTOR "GK" BETWEEN THE SIGNAL AND RGB PCB'S AND CONNECTOR "RH" ON THE RGB PCB TO CONNECTOR "TH" ON THE DOUBLER PCB.
MGA 414	MGA	VS50805	V16	video color	THIN VERTICAL LINE, RIGHT OF CENTER	1. PROBLEM CAN BE INTERMITTENT (TEMPERATURE RELATED) CAUSED BY IC7D04 PART # 275P245010 ON THE DOUBLER PCB
MGA 415	MGA	VS40VA2	VZ1	Video Color	No Video or OSD	1. CHECK FOR 1200 VDC AT PIN 1 OF CONNECTOR "DK". IF LOW OR MISSING CHECK R5D9 100 OHM 1/2 OFF PIN 1 OF THE FLYBACK ON THE MAIN PCB. 2. CHECK IC401 PIN 8 FOR 28 VDC IF MISSING CHECK R510 1.2 OHM 1/2 W OFF PIN 5 OF THE FLYBACK. IF OPEN IC401 PART # 272P239
MGA 416	MGA	VS40VA2	VZ1	Video Color	NO VID; Q2H0 OPEN	1. OVER CURRENT CONDITION FAILURE. APPLY FOLLOWING CIRCUIT CHANGE TO CORRECT. ON FOIL SIDE OF PCB-SIGNAL, SOLDER A 1S2471 DIODE CATHODE TO BASE OF Q2H0 AND ANODE TO EMITTER. LOCATED ON PCB-SIGNAL AT IC201 PIN 2. PT # 264P045040
MGA 417	MGA	VS40VA2	VZ1	Video Color	INTERFERES W/OTHER SETS	1. CHANGING EXISTING COAX CABLE TO RG-6U SHOULD REDUCE OR ELIMINATE INTERFERENCE
MGA 418	MGA	VS40VA2	VZ1	Video Color	PIX ROLLS ON DARK SCENES	1. CHECK IC2002 PIN 5 TO CONFIRM 12V INPUT AT PIN 5 AND 9V OUTPUT AT PIN 4. IF OUTPUT LOWER THAN 9V, REPLACE IC2002. LOCATED ON PCB-SIGNAL. PT# 267P076020
MGA 419	MGA	VS40VA2	VZ1	Video Color	PIX UNSTABLE	1. VERT JITTER/HORZ UNSTABLE-CHECK 'GE' CONNECTOR PIN 5 FOR 1VPP Y SIGNAL INTO PIP PCB THEN CHECK 'GE' CONNECTOR PIN 11 FOR 1VPP Y SIGNAL FROM PIP PCB. IF SIGNAL AT PIN 5 IS GOOD AND PIN 11 IS CLIPPED OR REDUCED. CHECK ALL ELECTROLYTICS (I.E.C7001, C7014,
MGA 420	MGA	VS40VA2	VZ1	Video Color	NO EXT VID (REAR)	1. NO LOGIC SWITCHING AT IC7602 PINS 2 AND 3. SUSPECT OPEN R786 (100 OHM 1/2W) INTERRUPTING DATA TRANSFER BETWEEN IC701 PIN 18 AND IC7606 PIN 2. LOCATED ON PCB-UCOM AT BASE OF Q705.
MGA 421	MGA	VS40VA2	VZ1	Video Color	RED RETRACE	1. CHECK THE VALUE OF R6H3 (2.2 MEG 1/2W). LOCATED ON RED CRT-PCB BETWEEN VR6A5 (G-2 CONTROL) AND GROUND 2. CHECK R6G0 2.2 K 1/4 W (G-1 RESISTER) ON THE RED CRT PCB
MGA 422	MGA	VS40VA2	VZ1	Video Color	POOR VIDEO	1. SUSPECT LEAKY/SHORTED Q2D0 (2SC2603). LOCATED ON PCB-SIGNAL CONNECTED TO IC201 PIN 41. PT# 260P559030
MGA 423	MGA	VS40VA2	VZ1	Video Color	BLUE RETRACE	1. CHECK THE VALUE OF R6H5 (2.2 MEG 1/2W). LOCATED ON BLUE CRT-PCB BETWEEN VR6A7 (G-2 CONTROL) AND GROUND 2. CHECK R6G2 2.2 K 1/4 W (G-1 RESISTER) ON THE BLUE CRT PCB
MGA 424	MGA	VS40VA2	VZ1	Video Color	GREEN RETRACE	1. CHECK THE VALUE OF R6H4 (2.2 MEG 1/2W). LOCATED ON GREEN CRT-PCB BETWEEN VR6A6 (G-2 CONTROL) AND GROUND. 2. CHECK R6G1 2.2 K 1/4 W (G-1 RESISTER) ON THE GREEN CRT PCB.
MGA 425	MGA	VS40VA2	VZ1	Video Color	NO VIDEO	1. NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH
MGA 426	MGA	VS-4541	VZ2	Video Color	GREEN WITH RETRACE	1. CHECK THE VALUE OF R60H4 AND R60H7 BOTH 1 MEG 1/2W. LOCATED ON GREEN CRT-PCB BETWEEN VR60A6 (G-2 CONTROL) AND GROUND 2. CHECK R60G1 2.2 K 1/4 W (G-1 RESISTER) ON THE GREEN CRT PCB
MGA 427	MGA	VS-4541	VZ2	Video Color	RED WITH RETRACE	1. CHECK THE VALUE OF R60H3 AND R60H6 BOTH 1 MEG 1/2W. LOCATED ON RED CRT-PCB BETWEEN VR60A5 (G-2 CONTROL) AND GROUND. 2. CHECK R60G0 2.2 K 1/4 W (G-1 RESISTER) ON THE RED CRT PCB.
MGA 428	MGA	VS-4541	VZ2	Video Color	NO VIDEO WITH INTERMITTENT SHUTDOWN	1. CHECK THE ACL VOLTAGE AT PIN 16 OF IC201 FOR 1.7VDC IF MISSING OR VOLTAGE IS NEGATIVE, CHECK FOR LEAKEY Q570 PART # 260P560040 ON THE MAIN PCB
MGA 429	MGA	VS-4541	VZ2	Video Color	EXCESSIVE BRIGHTNESS AND SHUTDOWN	1. CHECK THE VALUE OF R9A45 (180 OHM 1/2W),LOCATED ON THE MAIN-PCB NEXT TO D9A07. PT#103P391060. THIS CAN CAUSE ETCHING OF CRT PHOSPHORS
MGA 430	MGA	VS-4541	VZ2	Video Color	BLUE WITH RETRACE	1. CHECK THE VALUE OF R60H5 AND R60H8 BOTH 1 MEG 1/2W. LOCATED ON BLUE CRT-PCB BETWEEN VR60A7 (G-2 CONTROL) AND GROUND. 2. CHECK R60G2 2.2 K 1/4 W (G-1 RESISTER) ON THE BLUE CRT PCB. 3. PICTURE HAS HEAVY BLUE OVER CAST WITH RETRACE.CHECK GROUND CONNECTOR
MGA 431	MGA	VS-4541	VZ2	Video Color	NO VIDEO OR AUDIO	1. INITIALIZE THE SYSTEM CONTROL. WITH THE REMOTE CONTROL PRESS "MENU 2, 3, 5, 8, " USE THE ADJUST BUTTON TO SELECT "INITIAL" AND PRESS "ENTER".
MGA 432	MGA	VS-4541	VZ2	Video Color	INT. BRIGHT SCREEN	1. INTERMITTENT BRIGHT SCREEN WITH RETRACE.CHECK FOR CONTINUITY BETWEEN PIN (1) OF THE 'TR' CONNECTOR, AND PIN(1) OF THE 'DR' CONNECTOR. 'TR' IS LOCATED ON THE RED-CRT-PCB 'DR' IS LOCATED ON THE MAIN-PCB
MGA 433	MGA	VS-4541	VZ2	Video Color	PULSING RED WITH RETRACE	CHECK C60A0 (1 UFD 350V) ON THE RED CRT PCB.
MGA 434	MGA	VS-4541	VZ2	Video Color	NO VIDEO	1. CHECK FOR 1V P-P OF VIDEO ON PIN 43 OF IC7A01.IF LOW OR MISSING CHECK FOR SHORTED D726 (7.2V ZENER) ON PIN 15 OF THE 'GA' CONNECTOR. LOCATED ON THE FS-PCB. PT#264P485060 2. CHECK THE VALUE OF R509 AND R519 BOTH (100 OHM 1/2 W),LOCATED ON THE ON THE G2-
MGA 435	MGA	VS-4541	VZ2	Video Color	GOES RED AND SHUTSDOWN	1. PICTURE GOES RED AND SHUTSDOWN. CHECK THE VALUE OF R6G0 (2.2K 1/4W) LOCATED ON THE RED CRT-PCB.
MGA 436	MGA	VS-4541	VZ2	Video Color	NO VIDEO OR OSD	1. CHECK THE VALUE OF R509 AND R519 BOTH (100 OHM 1/2 W),LOCATED ON THE ON THE G2-P.C.B. PT#103P391030 2. CHECK FOR 34V ON PIN 6 OF IC401. IF LOW OR MISSING, CHECK FOR OPEN L542 ON THE CATHODE OF D505. LOCATED ON THE MAIN-PCB. 3.CHECK FOR 2VDC AT PIN 4 IC
MGA 437	MGA	VS-4541	VZ2	Video Color	BLACK BARS TOP 6" OF SCREEN	1. CHECK THE VALUE OF R413 330 OHM 1/4 W, IN THE VERTICAL OUTPUT CIRCUIT ON THE MAIN PCB.
MGA 438	MGA	VS4543	VZ3	Video Color	INTERMITTENT NO VIDEO AT TURN ON	1. IMPROPER CRT BIAS CAN CAUSE AKB BLANKING. DO CRT CUTOFF BIAS ALIGNMENTS PER THE SERVICE OR TRAINING MANUAL.
MGA 439	MGA	VS4543	VZ3	Video Color	DISTORTION DURING ON/OFF	1. RASTER DISTORTION DURING POWER ON/OFF.CHANGE THE VALUE OF C813 (33UF 16V) TO (10UF 50V).C813 IS LOCATED ON THE CONV-PWB
MGA 440	MGA	VS4543	VZ3	Video Color	BLACK BARS ACROSS PICTURE	1. CHECK FOR OPEN C933 (100 UFD 35V) ON THE 15V SUPPLY OFF T900 ON THE MAIN PCB.
MGA 441	MGA	VS4543	VZ3	Video Color	EXCESSIVE BRIGHTNESS	1. CHECK FOR LEAKY Q6R1 (RED CRT PCB), Q6G1 (GREEN CRT PCB) AND/OR Q6B1 (BLUE CRT PCB). PART # 260P627020
MGA 442	MGA	VS4543	VZ3	Video Color	NO VIDEO OR OSD	1. CHECK BASE BIAS VOLTAGE OF Q217, FOR 0 VDC (BIASED OFF) IF .7 VDC (BIASED ON) CHECK C268 (22 UFD 50 V) OFF C OF Q215 V-PROTECTOR ON THE SIGNAL PCB. 2. VERTICAL BEAM BLANKING ACTIVE, CHECK PIN 4 OF IC401 FOR 3 VDC IF MISSING CHECK IC202 (5V REG) PART #
MGA 443	MGA	VS4543	VZ3	Video Color	NO VIDEO	1. CHECK BASE BIAS VOLTAGE OF Q217, FOR 0 VDC (BIASED OFF) IF .7 VDC (BIASED ON) CHECK C268 (22 UFD 50 V) OFF C OF Q215 V-PROTECTOR ON THE SIGNAL PCB.
MGA 444	MGA	VS45501	VZ4	Video Color	INTERIMTTENT VIDEO AND AUDIO DROP OUT	1. INTERMITTENT DROP OUT OF AUDIO AND VIDEO MAY ONLY BE FOR A FEW SECONDS. REPLACE IC703 PART # 275P040020 (M38123M6-351SP), ON THE SIGNAL PCB.
MGA 445	MGA	VS45501	VZ4	Video Color	EXCESSIVE BRIGHTNESS	1. CHECK FOR LEAKY Q6R1 (RED CRT PCB), Q6G1 (GREEN CRT PCB) AND/OR Q6B1 (BLUE CRT PCB). PART # 260P469030
MGA 446	MGA	VS45603	VZ5	Video Color	VIDEO BLANKS FROM BOTTOM UP	1. CHECK C463 22 UFD @ 50 V OFF THE COLLECTOR OF Q401 ON THE MAIN PCB.
MGA 447	MGA	VS45603	VZ5	Video Color	EXCESSIVE BRIGHTNESS	1. CHECK FOR LEAKY Q6R1 (RED CRT PCB), Q6G1 (GREEN CRT PCB) AND/OR Q6B1 (BLUE CRT PCB). PART # 260P469030
MGA 448	MGA	VS50800	VZ6	Video Color	INTERMITTENT NO "Y" COLOR PRESENT	1. CHECK CONNECTOR "GL" FOR PROPER CONNECTION, ON THE DOUBLER PCB
MGA 449	MGA	VS50800	VZ6	Video Color	NO VIDEO OR OSD, AUDIO OK	1. CHECK D564 ON THE FOIL SIDE OF THE MAIN PCB IN THE HIGH VOLTAGE OUTPUT CIRCUIT. IT SHOULD BE MOUNTED WITH THE ANODE TO THE GATE OF Q530. IF IN BACKWARD REPLACE D564 PART # 264P045050 (MAKING SURE THE ANODE IS CONNECTED TO GATE OF Q530) AND Q530 PART #
MGA 450	MGA	VS50800	VZ6	Video Color	EXCESSIVE, DISTORTED, OR MISSING GREEN	1. CHECK Q2A13 PART # 260P533010 ON THE R G B PCB AND Q6G02 PART # 260P696010 ON THE GREEN CRT PCB. IF EITHER ARE BAD CHANGE THE VALUE OF C6G11 ON THE GREEN CRT PCB FROM 1000 PF TO 150 PF @3.15KV PART # 154P264000. (SEE SERVICE TIP VS-70) 2. CHECK FOR PRO
MGA 451	MGA	VS50800	VZ6	Video Color	EXCESSIVE, DISTORTED, OR MISSING BLUE	1. CHECK Q2A23 PART # 260P533010 ON THE R G B PCB AND Q6B02 PART # 260P696010 ON THE BLUE CRT PCB. IF EITHER ARE BAD CHANGE THE VALUE OF C6B11 ON THE BLUE CRT PCB FROM 1000 PF TO 150 PF @3.15KV PART # 154P264000, (SEE SERVICE TIP VS-70) 2. CHECK FOR PROPE
MGA 452	MGA	VS50800	VZ6	Video Color	EXCESSIVE, DISTORTED, OR MISSING RED	1. CHECK Q2A03 PART # 260P533010 ON THE R G B PCB AND Q6R02 PART # 260P696010 ON THE RED CRT PCB. IF EITHER ARE BAD CHANGE THE VALUE OF C6R11 ON THE RED CRT PCB FROM 1000 PF TO 150 PF @3.15KV PART # 154P264000. (SEE SERVICE TIP VS-70) 2. CHECK FOR PROPER
MGA 453	MGA	VS50800	VZ6	Video Color	LINES IN THE VIDEO	1. CHECK CONNECTOR "RH" TO "TH" BETWEEN THE R G B PCB AND DOUBLER PCB FOR OPEN OR INTERMITTENT CONNECTOR.
MGA 454	MGA	VS50800	VZ6	Video Color	EXCESSIVE BRIGHT WITH RETRACE	1. CHECK THE 230V SUPPLY AT CONNECTOR "PM" PIN 1 ON THE POWER PCB IF UNSTABLE, LOW OR MISSING CHECK R963, 22 OHM @ 3 W AND Q920, PART # 261P081010 ON THE POWER PCB. 2. CHECK FOR PROPER CONNECTION AT CONNECTOR "GK" BETEEN THE SIGNAL PCB AND RGB PCB.
MGA 455	MGA	VS50800	VZ6	Video Color	INTERIMTTENT OR NO LUMINOUS	1. CHECK CONNECTOR "GL" FOR PROPER CONNECTION THE DOUBLER PCB.
MGA 456	MGA	VS50800	VZ6	Video Color	NO VIDEO, AUDIO OK	1. (MISSING HIGH VOLTAGE) CHECK D564 ON THE FOIL SIDE OF THE MAIN PCB. IT SHOULD BE MOUNTED WITH THE ANODE TO THE GATE OF Q530. IF IN BACKWARD REPLACE D564 PART # 264P045050 (MAKING SURE THE ANODE IS CONNECTED TO GATE OF Q530) AND Q530 PART # 261P082010,
MGA 457	MGA	VS45605	VZ7	Video Color	LINES ROLLING UP IN PICTURE	1. CHECK C2P08 100 UFD 16 V OFF PIN 3 OF IC2P03 (3.2 VOLT REGULATOR) ON THE SIGNAL PCB
MGA 458	MGA	VS45605	VZ7	Video Color	NO LUMINANCE	1. CHECK FOR OPEN L2C50 PART #325C146030 ON THE SIGNAL PCB.
MGA 459	MGA	VS45605	VZ7	Video Color	FLICKER IN VIDEO ON BRIGHT SCENES	. CHECK C2V29 22 UFD @ 16 V OFF PIN 29 OF IC2V00 ON THE SIGNAL PCB
MGA 460	MGA	VS45605	VZ7	Video Color	DARK UNSTABLE RASTER	1. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 (9-VOLT REGULATOR) ON THE SIGNAL PCB.
MGA 461	MGA	VS45607	VZ8	Video Color	NO LUMINANCE	1. CHECK FOR OPEN L2C50 PART #325C146030 ON THE SIGNAL PCB.
MGA 462	MGA	VS45607	VZ8	Video Color	FLICKER IN VIDEO ON BRIGHT SCENES	1. CHECK C2V29 22 UFD @ 16 V OFF PIN 29 OF IC2V00 ON THE SIGNAL PCB
MGA 463	MGA	VS45607	VZ8	Video Color	DARK UNSTABLE RASTER	1. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 (9-VOLT REGULATOR) ON THE SIGNAL PCB
MGA 464	MGA	VS45607	VZ8	Video Color	LINES ROLLING UP IN PICTURE	1. CHECK C2P08 100 UFD 16 V OFF PIN 3 OF IC2P03 (3.2 VOLT REGULATOR) ON THE SIGNAL PCB.
MGA 465	MGA	VS45609	VZ9	Video Color	EXCESSIVE BRIGHTNESS	1. CHECK Q6R02, Q6G02 AND Q6B02 PART # 260P469030 AND Q600 PART # 260P560040, ALL ON THE SIGNAL PCB
MGA 466	MGA	VS50111	V20	video color	NOISE/LINES IN PICTURE	1. CHECK FOR ARCING AG-5K00 (SPARK GAP) PART # 224D019040 OR LEAKY C5K15 22 UFD 16 V IN THE DBF CIRCUIT ON THE MAIN PCB.
MGA 467	MGA	VS40VA2	VZ1	Video Color	No Video or OSD	1. CHECK FOR 1200 VDC AT PIN 1 OF CONNECTOR "DK". IF LOW OR MISSING CHECK R5D9 100 OHM 1/2 OFF PIN 1 OF THE FLYBACK ON THE MAIN PCB. 2. CHECK IC401 PIN 8 FOR 28 VDC IF MISSING CHECK R510 1.2 OHM 1/2 W OFF PIN 5 OF THE FLYBACK. IF OPEN IC401 PART # 272P239
MGA 468	MGA	VS40VA2	VZ1	Video Color	NO VID; Q2H0 OPEN	1. OVER CURRENT CONDITION FAILURE. APPLY FOLLOWING CIRCUIT CHANGE TO CORRECT. ON FOIL SIDE OF PCB-SIGNAL, SOLDER A 1S2471 DIODE CATHODE TO BASE OF Q2H0 AND ANODE TO EMITTER. LOCATED ON PCB-SIGNAL AT IC201 PIN 2. PT # 264P045040
MGA 469	MGA	WS55807	V17	Video Color	WHITE, WASHED OUT RASTER	1. WHITE RASTER WITH NO SIGNAL, WASHED OUT LOOKING VIDEO WITH SIGNAL. ACCESS THE SERVICE MENU, "MENU 8257" USE THE AUDIO BUTTON TO SELECT "VIDEO CHROMA" ADJUSTMENTS, USE THE VIDEO BUTTON TO SELECT ITEM "68 - AG1", USE THE ADJUST BUTTON TO CHANGE THE SETTING TO 0, THEN PRESS THE ENTER BUTTON TO STORE THE CHANGE.
MGA 470	MGA	WS55807	V17	Video Color	NON-UNIFORM GRAYSCALE	1. THE SYMPTOM IS BRIGHTER IMAGE ON THE SIDES AND DARKER IN THE MIDDLE. THE PROBLEM CAN BE WITH RED BLUE AND/OR GREEN. CHECK FOR PROPER CONNECTIONS TO THE "DAG COATING AND CONNECTIONS TO PIN 9 ON THE SOCKET OF THE AFFECTED CRT. MAKE SURE THESE GROUND POINTS ARE COMMON WITH CHASSIS GROUND.
MGA 471	MGA	VS-4571	V13	Video Color	no video or osd	1. CHECK FOR OPEN R509 (100 OHM 1/2W) RES. LOCATED ON THE G2-PCB. 2. CHECK IC401 PIN 8 FOR 28 VDC IF MISSING CHECK R510 1.2 OHM 1/2 W OFF PIN 5 OF THE FLYBACK IS OPEN IC401 PART # 272P239050 MAY BE SHORTED. BOTH ARE ON THE MAIN PCB. 3. CHECK FOR SHORTED OR LEAKY Q2H0, IF BAD APPLY FOLLOWING CIRCUIT CHANGE TO CORRECT. ON FOIL SIDE OF PCB-SIGNAL, SOLDER A 1S2471 DIODE CATHODE TO BASE OF Q2H0 AND ANODE TO EMITTER. LOCATED ON PCB-SIGNAL AT IC201 PIN 2. PT # 264P045040 AND REPLACE Q2H0 PART # 260P559030. 4. CHECK C2H1 100 UFD 35 V C2H2 1 UFD 50 V AND C2H3 47 UFD 35 V OFF OF Q2H1 IN THE SPOT KILLER CIRCUIT ON THE SIGNAL PCB.
MGA 472	MGA	VS-4571	V13	Video Color	pix unstable	1. HORIZONTAL TEARING, VERTICAL JITTER. SIGNAL RELATED CONDITION. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
MGA 473	MGA	VS-4571	V13	Video Color	no video; Q20H0 open	1. OVER CURRENT CONDITION FAILURE. APPLY FOLLOWING CIRCUIT CHANGE TO CORRECT. ON FOIL SIDE OF PCB-SIGNAL, SOLDER A 1S2471 DIODE CATHODE TO BASE OF Q2H0 AND ANODE TO EMITTER. LOCATED ON PCB-SIGNAL AT IC201 PIN 2. DIODE PART # 264P045040.
MGA 474	MGA	VS-4571	V13	Video Color	no video/conv control	1. NO VIDEO OR CUSTOMER CONVERGENCE CONTROL. MAY HAVE OCCURED AFTER REPORT OF SET ARCING. SUSPECT DEFECTIVE IC2004 (D/A CONV). LOCATED ON PCB-SIGNAL. PT# 272P758010 2. APPLY FOLLOWING CHANGE. INSTALL A 100 OHM 1/4 WATT RESISTOR ON FOIL SIDE OF PCB-SIGNAL FROM IC2004 PIN 12 TO C2011 (10UF 50V) POSITIVE TERMINAL. CAPACITOR LOCATED ON FOIL SIDE OF PCB-SIGNAL MOUNTED ADJACENT TO IC2004
MGA 475	MGA	VS-4571	V13	Video Color	pix rolls on dark scenes	1. CHECK IC2002 PIN 5 TO CONFIRM 12V INPUT AT PIN 5 AND 9V OUTPUT AT PIN 4. IF OUTPUT LOWER THAN 9V, REPLACE IC2002. LOCATED ON PCB-SIGNAL. PT# 267P076020
MGA 476	MGA	VS-4571	V13	Video Color	ringing in pix	1. VISIBLE AT TOP OF PICTURE. CHANGE C411 (3300PF 50V POLY) TO (2700PF 50V POLY). SILICONE MOUNT ON FOIL SIDE OF PCB. LOCATED ON PCB-MAIN AT IC401 PIN 7.
MGA 477	MGA	VS-4571	V13	Video Color	no external video, reat	1. NO LOGIC SWITCHING AT IC7602 PINS 2 AND 3. SUSPECT OPEN R786 (100 OHM 1/2W) INTERRUPTING DATA TRANSFER BETWEEN IC701 PIN 18 AND IC7606 PIN 2. LOCATED ON PCB-UCOM AT BASE OF Q705.
MGA 478	MGA	VS-4571	V13	Video Color	red retrace	1. SUSPECT OPEN R6H3 (2.2 MEG 1/2W). LOCATED ON RED CRT-PCB G2 LINE ADJOINING CONNECTOR "SN" PIN 1. 2. SUSPECT OPEN R6H0 (1.2 MEG 1/2W). LOCATED ON PCB-CRT (R) CONNECTED TO WIPER OF VR6A5.
MGA 479	MGA	VS-4571	V13	Video Color	no video	1. CHECK FOR 12V ON PIN 13 OF IC2004 IF LOW OR MISSING,CHECK FOR CIRCUIT GLUE ON C2009 (47UF 35V),AND OPEN L2008 (10UH).ON THE SIGNAL-PCB. L2008 PT#325C121030 2. NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH IN THE PATH BETWEEN C7001 POSITIVE LEAD AND THE EMITTER OF Q7003 OR CAUSE INTERMITTENT COLOR. PT#181P504090. (CHECK ALL 'SMD' ELECTROLYTICS AND TRACES ON PIP) 3. NO MAIN OR PIP VIDEO, CHECK C7014, 47 UFD 16V ON THE PIP PCB. PART # 181P502060 4. CHECK FOR 7.2V DC ON THE BASE OF Q7003,IF LOW OR MISSING.CHECK THE VALUE OF R7002 (150 OHM 1/10W).LOCATED ON THE PIP-PWB. PT#103P401050
MGA 480	MGA	VS-5073	V13B	Video Color	pix unstable	1. HORIZONTAL TEARING, VERTICAL JITTER. SIGNAL RELATED CONDITION. APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
MGA 481	MGA	VS-5073	V13B	Video Color	no video; Q2H0 open	Cause #1 1. OVER CURRENT CONDITION FAILURE. APPLY FOLLOWING CIRCUIT CHANGE TO CORRECT. ON FOIL SIDE OF PCB-SIGNAL, SOLDER A 1S2471 DIODE CATHODE TO BASE OF Q2H0 AND ANODE TO EMITTER. LOCATED ON PCB-SIGNAL AT IC201 PIN 2. DIODE PART # 264P045040.
MGA 482	MGA	VS-5073	V13B	Video Color	red retrace	1. SUSPECT OPEN R6H3 (2.2 MEG 1/2W). LOCATED ON RED CRT-PCB G2 LINE ADJOINING CONNECTOR "SN" PIN 1. 2. SUSPECT OPEN R6H0 (1.2 MEG 1/2W). LOCATED ON PCB-CRT (R) CONNECTED TO WIPER OF VR6A5.
MGA 483	MGA	VS-5073	V13B	Video Color	no video or osd	1. CHECK FOR OPEN R509 (100 OHM 1/2W) RES. LOCATED ON THE G2-PCB. 2. CHECK FOR OPEN R510 ( 1.2 OHM 1/2W). LOCATED OFF PIN 5 OF T501.
MGA 484	MGA	TS-5087	V14	Video Color	horizontal line across screen	1. INSTALL R9A18 3.3 K 1/4 W BETWEEN IC9A0 PIN 7 AND GROUND ON THE MAIN PCB
MGA 485	MGA	TS-5087	V14	Video Color	bright pix and shutdown	1. CHECK THE VALUE OF R9A45 (180 OHM 1/2W RES.),IF OPEN OR INCREASED IN VALUE CHECK FOR A LEAKY OR SHORTED C9A57 (1UF 350V).AT THE CATHODE OF D9A07,ON THE MAIN-PCB.
MGA 486	MGA	TS-5087	V14	Video Color	no video or osd	1. (MAY BE INTERMITTENT) CHECK CONNECTORS HB/RB AND HA/RA BETWEEN FS PCB AND STARSIGHT PCB FOR PROPER SEATING , IF GOOD REMOVE CONNECTORS HA AND HB FROM THE STARSIGHT PCB, IF VIDEO RETURNS CONFIRM 5VPP CLOCK ON PIN 1 OF HB AND 5VPP DATA ON PIN 2 OF HB IF PRESENT REPLACE STARSIGHT PCB PART # 930C824002 (MUST CALL T/A TO ORDER)
MGA 487	MGA	CS35607	ZA	Video Color	NO VIDEO	1. CHECK IC6F01 PIN 8 (BLUE), PIN 6 GREEN, AND PIN 5 (RED) FOR 3VPP SIGNAL IF MISSING CONFIRM 3 VPP INPUTS AT PINS 1,2 AND 3, IF PRESENT. REPLACE IC6F01 PART # 272P027010. AND ADD A DIODE (1S2471M) PART # 264P045040. INSTALLED WITH THE ANODE CONNECTED TO
MGA 488	MGA	CS35607	ZA	Video Color	REPEAT FAILURE OF IC6F01	1. AFTER REPLACING IC6FO1 PART # 272P027010 ADD A DIODE (1S2471M) PART # 264P045040 WITH THE ANODE CONNECTED TO THE ANODE OF D6XA1 AND THE CATHODE CONNECTED TO THE CATHODE OF D6F04.
MGA 489	MGA	CS35607	ZA	Video Color	NO BLUE, GREEN, AND/OR RED	1. CHECK PIN 8 OF IC6F01 FOR 3 VPP BLUE SIGNAL, PIN 6 FOR GREEN AND 5 FOR RED. IF MISSING CONFIRM INPUT AT PINS 3 BLUE, 2 GREEN AND 1 RED. IF PRESENT REPLACE IC6F01 PART # 272P027010 AND ADD A DIODE (1S2471M) PART # 264P045040. INSTALLED WITH THE ANODE CO
MGA 490	MGA	CS35607	ZA	Video Color	NOISE IN PIX	1. NOISE IN PIX DUE TO COMPONENT TOLERENCE.INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES, ON SIGNAL PWB.: A. C6XA2 - 120 PF @ 50V B. L6XA2 - 15 MH COIL C. R6XA6 - 22 OHM 1/4W THIS PROBLEM MAY BE VALID WITH COLOR AND B/W VIDEO.
MGA 491	MGA	CS35607	ZA	Video Color	NOISE BAR ACROSS PICTURE	1. HORIZONTAL BAR MOSTLY VISIBLE ON ANT."B" WITH DARK PIX. INSURE THAT THE FOLLOWING COMPONENTS ARE OF THE FOLLOWING VALUES ON HF PWB A.C1Y4 - 220UF @ 16V (ELECTROLYTIC) B.R1Y7 - 8.2KOHM 1/4W C.ENSURE JUMPER #3 HAS INSTALLED A 100 OHM 1/4W RESISTOR
MGA 492	MGA	CS27205	YM0	Video Color	NO VIDEO OR OSD	1. CHECK FOR 8 VPP HORIZONTAL PULSE AT PIN 22 OF IC200. IF LOW OR MISSNING CHECK R585 1.2 OHM 1/4 W OFF PIN 5 OF THE FLYBACK, ON THE MAIN PCB. 2. CHECK FOR THE BASE OF Q651 FOR 13 VDC IF LOW OR MISSING CHECK R680 100K 1/4 WATT, ON THE CRT PCB
MGA 493	MGA	CS27205	YM0	Video Color	N0 LUMINANCE	1. CHECK FOR OPEN DL-2032 PART # 337P189010, OFF THE BASE OF Q2030 ON THE MAIN PCB.
MGA 494	MGA	CK35702	YA2	Video Color	DARK TO NO VIDEO AND OSD	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q605 TO BE SHORTED OR LEAKY, PART # 260P560040. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 495	MGA	CK35702	YA2	Video Color	NO VIDEO	1. NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH
MGA 496	MGA	CS35601	YA1	Video Color	NO VIDEO	1.NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH I
MGA 497	MGA	CS35601	YA1	Video Color	DARK TO NO VIDEO AND OSD	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q605 TO BE SHORTED OR LEAKY, PART # 260P560040. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 498	MGA	CK35804	YA2B	Video Color	FLASHING GREEN IN PIC.	1. GREEN FLASHING IN THE PICTURE,CHECK THE VALUE OF C6A39 (.1UF 50V) ON PIN 39 OF IC6A01.LOCATED ON THE SIGNAL-PCB.
MGA 499	MGA	CK35804	YA2B	Video Color	DARK OR NO VIDEO	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q6C2 TO BE SHORTED OR LEAKY, PART # 260P559030. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 500	MGA	CS35503	YA0	Video Color	INT. NO VIDEO/NO OSD	1. INTERMITTENT NO VIDEO AND NO OSD MAY ALSO SHUTDOWN.CHECK FOR 5VPP OF DIGITAL INFORMATION ON PIN 6 OF IC702,IF LOW OR MISSING.CHECK FOR LEAKY D7Q1 ON PIN 19 OF IC2A01 ON THE A/V-PCB. PT#264P502030
MGA 501	MGA	CS35503	YA0	Video Color	SVHS ROLL ON SCENE CHANGE	1 1. C-2A01 AND C-3001 ON THE A/V PCB ARE INCORRECTLY LABELED, SWAP LOCATIONS OF C-2A01 AND C-3001. ON THE PCB C-2A01 SHOULD BE 1UFD 5OV AND C-3001 SHOULD BE 10UFD 50V.
MGA 502	MGA	CS35503	YA0	Video Color	NO VIDEO AT WHEN COLD	1. CHECK FOR A LEAKY OR SHORTED DIODE, D251. LOCATED AT THE BASE OF Q290. PART NUMBER FOR DIODE 264P045040
MGA 503	MGA	CS35503	YA0	Video Color	VIDEO BLANKS AFTER 20MIN.	1. CHECK FOR THE LOSS OF CONTINUITY BETWEEN 'HD' CONNECTOR ON THE DEFL- PCB ON THE 'HD' CONNECTOR ON THE CRT-PCB.
MGA 504	MGA	CS35503	YA0	Video Color	WAVING ON B/W PIX	1. DISCONNECT ONE LEG OF C471 (THE SIDE CONNECTED TO L462) ON THE PCB- DEFL,AND SOLDER A 4.7OHM, 1/4W, 5% CARBON RESISTOR IN SERIES WITH C471 (0.01UF, 100V). SECURE WITH SILICONE GLUE (P/N 859D106020) AVOIDING THE HEATSINK OF IC401 AT ALL COSTS.
MGA 505	MGA	CS35503	YA0	Video Color	BLACK LINE AT TOP OF PIC.	1. BLACK LINE AT THE TOP OF THE PICTURE,OCCURS AFTER WARM UP.CHECK FOR 32VDC ON PIN 6 OF IC401 AND 1VP-P VERTICAL DRIVE PULSE AT PIN 4.IF THAY ARE GOOD REPLACE IC401. PT#270P064010
MGA 506	MGA	CS35503	YA0	Video Color	DARK TO NO VIDEO AND OSD	1. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q6C2 TO BE SHORTED OR LEAKY, PART # 260P559030. PCB SIGNAL 2. CHECK PIN 26 IC201 FOR 3VDC (ACL), IF LOW CHECK Q291 TO BE SHORTED OR LEAKY, PART # 260P559050. PCB DEFL 3. CHECK FOR A LEAKY OR SHORTED DIODE
MGA 507	MGA	CS20301	XM1	Video Color	BLACK SCREEN AND NO OSD	1. BLACK SCREEN NO OSD AND THE AUDIO IS O.K.AT TURN ON MONITOR PIN 29 OF IC701 FOR 0 VDC,IF THIS INCREASES.DISCONNECT PIN 29 AND MONITOR THE PIN FOR 0V,IF MORE THAN 0V,REPLACE IC701.LOCATED ON THE MAIN-PCB 2. CHECK BLANKING PULSE AT IC201 PIN 1. SHOULD BE
MGA 508	MGA	CS20301	XM1	Video Color	NEGATIVE PIX	1. CHECK FOR LUMINANCE ON PIN 41 OF IC201 IF MISSING OR LOW REPLACE DL202 LOCATED ON THE MAIN-PCB. PT#337P113020
MGA 509	MGA	CS20301	XM1	Video Color	NO VIDEO	1. CHECK BLANKING PULSE AT IC201 PIN 1. SHOULD BE 8-10VPP. IF LOW, SUSPECT OPEN R585 (1.2 OHM 1.2W). LOCATED ON MAIN PCB AT FBT PIN 5.
MGA 510	MGA	CS20301	XM1	Video Color	VIDEO GOING IN AND OUT	1. TUNER VIDEO AND SOUND CYCLES BACK AND FORTH FROM CORRECT VIDEO AND SOUND TO SNOW. CHECK C713 (4.7UF NP 50V) ON MATRIX-PWB.
MGA 511	MGA	CS20301	XM1	Video Color	BLANK SCREEN ON TUNER INP	1.NO VIDEO ONLY A BLANK SCREEN ON TUNER INPUT,ON EXTERNAL INPUT SCREEN GOES WHITE AND SHUTSDOWN.CHECK C511 (.15UF 50V) ON PIN 46 OF IC201.ON THE MAIN-PCB.
MGA 512	MGA	CS20301	XM1	Video Color	NO PIP VIDEO	1. SUSPECT SUB-VIDEO SWITCH IC2002 (LA7956) PART # 272P394010. LOCATED ON PCB-VIDEO. USE FOLLOWING LOGIC CHART TO CONFIRM: ] LOGIC PIN ] INPUT / PIN ] 2 ] 3 ] * HIGH = 5V --------------]-----]-----] TUNER 4 ] H ] H ] ] ] ] EXT 1 6 ] L ] H ] ] ] ] EXT 2 8
MGA 513	MGA	CS27MX1	XM	Video Color	NO PIP VIDEO	1. CHECK C7026, AND C7036 BOTH 4.7 UFD 35 V ON THE PIP PCB. 2. SUSPECT SUB-VIDEO SWITCH IC2002 (LA7956) PART # 272P394010. LOCATED ON PCB-VIDEO. USE FOLLOWING LOGIC CHART TO CONFIRM: LOGIC PIN INPUT PIN 2 3 * HIGH = 5V TUNER 4 H H EXT 1 6 L H EXT 2 8 H L
MGA 514	MGA	CS27MX1	XM	Video Color	NO VIDEO	1. NO MAIN VIDEO,THERE IS VIDEO IN PIP ON EXT1 AND EXT2:-CHECK FOR 1VPP OF LUMINANCE ON PIN 1 OF IC7000, IF MISSING OR LOW CHECK THE VALUE OF C7001 (4.7UF 35V), LOCATED ON THE PIP-PCB.THIS CAP MAY LEAK ELECTROLYTE ONTO THE BOARD AND OPENED A FEED THROUGH
MGA 515	MGA	CS27MX1	XM	Video Color	PIC. ROLLS ON TUNER INPUT	1. CHECK FOR 4V ON PIN 6 OF IC101,IF LOW OR MISSING.CHECK THE VALUE OF C108 (.1UF 50V) ON PIN 6.LOCATED ON THE MAIN-PCB
MGA 516	MGA	CS27MX1	XM	Video Color	NO MAIN PIX W/PIP	1. SUSPECT OPEN D731 (1S2471). LOCATED ON PCB-MAIN CONNECTED TO IC701 PIN 8. PT# 264P045040
MGA 517	MGA	CS27MX1	XM	Video Color	PIX SHRUNK; WAVY EDGES	1. SUSPECT OPEN C953 (820 UF 180V). LOCATED ON PCB-MAIN AT OUTPUT SIDE OF BRIDGE RECTIFIER D953.
MGA 518	MGA	CS27MX1	XM	Video Color	LOW BRIGHTNESS	1. IC201 PIN 35 (BRIGHTNESS) CLAMPED LOW. CANNOT VARY WITH BRIGHTNESS CONTROL. SUSPECT OPEN RESISTOR R270 (120K). LOCATED ON PCB-MAIN AT IC201 PIN 35.
MGA 519	MGA	CS27MX1	XM	Video Color	VIDEO GOING IN AND OUT	1. TUNER VIDEO AND SOUND CYCLES BACK AND FORTH FROM CORRECT VIDEO AND SOUND TO SNOW. CHECK C713 (4.7UF NP 50V) ON MATRIX-PWB.
MGA 520	MGA	CS27MX1	XM	Video Color	NO VIDEO OR OSD	1.CHECK BLANKING PULSE AT IC201 PIN 1. SHOULD BE 8-10VPP. IF LOW, SUSPECT OPEN R585 (1.2 OHM 1/2W). LOCATED ON MAIN PCB AT FBT PIN 5.
MGA 521	MGA	CS20RX1	XL	Video Color	DISTORTED PIX	1. SUSPECT OPEN Q705 (2SC1740). LOCATED ON PCB-MAIN AT IC701 PIN 1. PT# 260P559030
MGA 522	MGA	CS20RX1	XL	Video Color	NO TUNER PIX	1. MONITOR 40V DC SUPPLY AT Q502 EMITTER. IF LOW, SUSPECT OPEN D505 (S5500D). LOCATED ON PCB-MAIN AT FBT PIN 5. PT# 264P285010
MGA 523	MGA	CK35072	JU-0	video smears	TV can either have no luminance or Horizontal smear, Vertical Jitters. This a a more indepth by-pass for the, no longer available, PIP module. From Steven Soprou in New Jersey	I played around and got perfection on this Mitsubishi CK35702 PIP board that uses the non-bypassable 005 board (no longer available, no bypass board available). The normal bypass is a cap from 5 to 11 for the luma. The problem on this set is that we need 1V PP out at pin 11 but we have 2V PP coming in at pin 5....The solution is to put the - side of a 4.7uf cap to pin 5 and put the + side to a 2.7k resistor, the other end of this resistor goes to pin 11. Then take a 4.7k resistor, attach one end to pin 11 and the other end to ground at pin 4 . This drops the 2vPP to 1VPP. I do this with the VP connector off the PIP board and use the connector only. For the chroma I use a 1uf cap from pins 7 to 9 with the - at pin 7. The pix after the bypass was perfect. I looked at bright and dark scenes and text, and the white box on QVC. No smearing, no glowing, no tearing, no red flames. This looked as good as a  Sony at the end. Steven Soprou