Sony
KV27EXR10
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Sony
KV27EXR10
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Complaint
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Fix
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| BARS IN PICTURE | REPLACE OPEN C336 10MFD X 50VDC |
| CLOCK RUNS FAST MAY GAIN 2 TO 12 MINUTES | ADD SPIKE SUPPRESSION CAPACITOR C125 0.1MFD X 50V (PN: 1-124-463-00) IN PARALLEL WITH D104 |
| DARK SCREEN AUDIO & VIDEO MUTED HAS ON SCREEN DISPLAY | REPAIR BAD SOLDER CONNECTIONS ON "U1" BOARD MAIN BOARD INTERFACE AT A22 CONNECTOR & U1-1 & U1-2 CONNECTORS ON "U1" BOARD LOCATED NEAR BACK OF SET NEXT TO THE A/V BOARD |
| DEAD | REPLACE D408 ZENER DIODE |
| DEAD (WORKS OK IF RELAY IS SHORTED) | REPLACE Q608 LOCATED ON MAIN BOARD & Q606 ON POWER CONVERTER BOARD |
| DISTORTED PICTURE (PINCUSHION) | REPLACE R527 & IC531 |
| FAINT VERTICAL BARS SEEN ONLY ON WHTE BACKGROUND ACROSS SCREEN | REDRESS GROUND WIRE FROM "C" BOARD TO MAIN PC BOARD AWAY FROM FOCUS WIRE ON FLYBACK |
| INTERMITTENT BUZZING NOISE | REMOVE SHIELD FROM T602 TRANSFORMER & APPLY SILICONE SEALANT TO BOTH TRANSFORMER & SHIELD & REINSTALL |
| NO AUDIO (NO B+ AT PIN 9 OF IC405) | REPLACED OPEN F602 2A 125V FUSE LOCATED ON "G" POWER SUPPLY BOARD (NOTE: NO -20V AT PIN 9 (VCC) OF IC405 TDA2009A AUDIO OUTPUT IC) |
| NO COLOR ON CHANNEL 3 | REPLACE CM1301 COMB FILTER (PN: 1-466-163-21) LOCATED ON "U" BOARD |
| NO PICTURE OR AUDIO & TURNING UP MASTER SCREEN SHOWS NO VERTICAL SWEEP | REPLACE D408 5.6VDC ZENER LOCATED ON "U" BOARD |
| NO PICTURE OR AUDIO HAS ON SCREEN DISPLAY | RESOLDER BAD CONNECTION ON MAIN PC BOARD UNDER U1-22 MODULE AV/SW MODULE |
| NO PICTURE OR ON SCREEN DISPLAY HAS HIGH VOLTAGE & SOUND | REPAIR OPEN TRACE CONNECTION ON Q708 HEAT SINK LOCATED ON "C" BOARD |
| NO VERTICAL SWEEP | REPLACE L514 (PN: 1-408-698-00) |
| NO VIDEO HAS HIGH VOLTAGE & SLEEP LIGHT ON | REPLACE SHORTED C500 0.0022MFD X 50VDC CAPACITOR (PN: 1-130-475-00) LOCATED OFF PIN 1 OF IC500 |
| PICTURE FLASHES ON & OFF WHEN TURNED ON | REMOVE C720 CAPACITOR FROM "C" BOARD |
| PICTURE VERY DARK NO LUMINANCE (LOOKS LIKE ONLY COLOR) | REPLACE R741 1K OHM LOCATED OFF COLLECTOR OF Q711 |
| POOR PINCUSHION | REPLACED IC531 (NOTE: L517 & R533 WERE WARM CHECKED PIN 1 OF IC531 FOUND WAVESHAPE CORRECT BUT DC VOLTAGE WAS 5V THIS CAUSED Q530 TO TURN ON HEAVER) & REPLACE R527 |
| RED BLUE OR GREEN RETRACE LINES APPEAR ON SCREEN (MORE VISIBLE IN VIDEO MODE UNDER NO SIGNAL CONDITION) | REPLACE IC701 (PN: 8-759-980-59) LOCATED ON "C" BOARD |
| SHUTSDOWN IMMEDIATELY | REPLACE SHORTED Q608 (PN: 8-729-423-44 OR 2SA1309) LOCATED ON "A" BOARD |
| VERTICAL FOLDOVER BOTTOM OF PICTURE | REPLACE R551 LOCATED OFF PIN 7 OF IC500 |
| VERTICAL ROLLS & PINCUSHION DISTORTION | REPLACE CONTROLLER IC101 (PN: 8-759-635-34) ADJUST PIN & VERTICAL FREQUENCY |
| WON'T TURN ON | REPLACE C112 (PN: 1-124-925-11) LOCATED OFF IC101 PIN 25 |
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