Sony
KV27EXR15
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Sony
KV27EXR15
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Complaint
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Fix
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| AUDIO & VIDEO MUTED FROM TUNER OR A/V INPUTS (JUST A DARK SCREEN) HAS ON SCREEN DISPLAY | REPAIR 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 A/V BOARD |
| AUDIO DISTORTED & GARBLED AT MAXIMUM BASE SETTING OR WOO-WOO EFFECT IN VOICE WITH SRS ON | REPLACE SRS MODULE WITH UPGRADED (PN: 8-741-592-02) AFTER MODULE REPLACED CHANGE BRACKET (PN: 4-393-435-05) TO NEW ONE TO SUPPORT SRS MODULE & ADD 22K OHM RESISTOR IN SERIES WITH C251 1MFD OFF PIN 3 OF IC251 TO GROUND & ADD 22K TO PIN 5 OF IC251 FROM C253 1MFD TO GROUND |
| BARS IN PICTURE | REPLACE OPEN C336 10MFD X 50VDC |
| CLOCK RUNS FAST MAY GAIN 2 TO 12 MINUTES | ADD SPIKE SUPPRESSION CAPACITOR C125 0.1UFD X 50V (PN: 1-124-463-00) IN PARALLEL WITH D104 |
| DARK PICTURE OR GOES DARK AFTER WARMED UP | REPLACE LEAKY Q711 (PN: 2SA1309A) LOCATED OFF PIN 25 OF IC301 |
| DARK SCREEN HAS HIGH VOLTAGE & SOUND TURNING UP SCREEN CONTROL SHOWS NO VERTICAL SWEEP | REPLACED SHORTED C500 (PN: 1-130-475-00) LOCATED OFF IC500 PIN 1 (NOTE: VOLTAGE ON IC301 PIN 27 IS LOW THUS BLANKING VIDEO) |
| DEAD | REPLACE IC651 & CHECK D623 DIODE OR Q604 (PN: 2SA1309-QRS OR 872942344) LOCATED ON "G" BOARD OR Q651 (PN: STRS6301) LOCATED ON "F" OR REPLACE D408 ZENER DIODE (NOTE: DIODE TESTS OK BUT IS BAD) |
| DEAD (RELAY CLICKS ON) | REPLACE IC651 (PN: 8-749-920-81 OR STRS6301) USE IMPROVED (PN: STRS6301A) |
| INTERMITTENT OR NO COLOR ON MAIN PICTURE HAS COLOR IN PIP | REPLACED INTERMITTENT COLOR OSCILLATOR CRYSTAL (PN: 1-567-505-11) LOCATED ON "A" BOARD |
| INTERMITTENT OR NO COLOR ONLY IN TOP HALF OF PICTURE ESPECIALLY WHEN PICTURE CHANGES | REPLACE D308 ZENER DIODE (PN: 8-719-110-49) LOCATED ON "A" BOARD |
| INTERMITTENT VIDEO HAS AUDIO | CHECK FOR 1000VDC AT D505 IF MISSING REPLACE D505 & R519 |
| INTERMITTENTLY POWERS ON MAY HAVE HIGH VOLTAGE & TURN OFF RELAY STAYS ON | REPAIR BAD SOLDER CONNECTIONS ON T501 HORIZONTAL DRIVER TRANSFORMER |
| NO AUDIO (NO B+ AT PIN 9 OF IC405) | REPLACE 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 PICTURE HAS HIGH VOLTAGE & SLEEP LIGHT ON | REPLACE SHORTED C500 (PN: 1-130-475-00) 0.0022MFD X 50V LOCATED OFF IC500 PIN 1 |
| NO PICTURE OR AUDIO & NO SWEEP JUST HORIZONTAL LINE SHRUNKEN IN ABOUT 3" ON SIDES | REPLACE IC1301 LOCATED ON "B" BOARD |
| NO PICTURE OR AUDIO MAY BE INTERMITTENT & SCREEN GREY | REPAIR BAD SOLDER CONNECTION ON 9VDC & 5VDC REGULATORS IC581 & IC582 LOCATED ON LARGE HEAT SINK ON MIDDLE OF MAIN PC BOARD |
| NO PICTURE OR PICTURE MUTED | REPLACE Q716 & R744 |
| NO VERTICAL SWEEP (NO VERTICAL OSCILLATOR) | REPLACE JUNGLE IC1301 (PN: 8-759-972-43) LOCATED ON "B" & IC251 MAY BE BAD |
| NO VIDEO OR SOUND HAS HIGH VOLTAGE | REPLACE D251 |
| NO VIDEO OR SOUND HAS HIGH VOLTAGE BUT REMOTE WON'T WORK | REPLACE IC301 (PN: 8-752-035-52) ON "A" BOARD |
| PICTURE BLANKS IF YOU GO TO AN INACTIVE STATION | REPLACE D303 DIODE ON "A" BOARD |
| PICTURE BLANKS OUT IN SERVICE MODE AFTER MEMORY IC102 REPLACED | RECORD ALL MEMORY SETTINGS BEFORE REPLACING IC102 POWER OFF UNIT & REPLACE IC102 THEN POWER ON IN SERVICE MODE IF PICTURE BLANKED PRESS "9" ON REMOTE HORIZONTAL FREQUENCY WILL ADJUST AUTOMATICALLY THEN RESET MEMORY LOCATIONS MAY BE SET |
| PICTURE BLINKS ON & OFF WHEN FIRST TURNED ON | REPLACED OPEN R702 1MEG OHM RESISTOR LOCATED ON "C" BOARD |
| PICTURE SHIFTED DOWNWARD WON'T HOLD MEMORY | REPLACE IC102 & READJUST |
| PINCUSHION DISTORTION | REPLACE L501 R571 OPEN & Q505 SHORTED D512 DAMPER DIODE CONNECTION AT L509 C519 C516 AREN'T PENETERATING THROUGH PC BOARD RESOLDER CONNECTIONS LOCATED ON "A" BOARD & R537 OPEN (PN: 1-247-883-00) LOCATED ON "A" BOARD |
| PIP PICTURE ALL GREEN | REPLACE IC2601 5V REGULATOR IC (PN: 8-759-982-31) LOCATED ON "P" BOARD |
| SHUTSDOWN IMMEDIATELY AT TURN ON | REPLACE OPEN Q651 LOCATED ON "F" BOARD |
| VERTICAL RETRACE LINES AT TOP OR BOTTOM OF SCREEN | REPLACED C546 .068MFD X 100VDC CAPACITOR (PN: 1-106-216-00) LOCATED OFF PIN 5 OF IC500 |
| VERTICAL ROLLS & PINCUSHION DISTORTED | REPLACE IC101 CONTROLLER THEN ADJUST PINCUSHION & VERTICAL SETTINGS |
| VIDEO DARK LUMINANCE LOW (LOOKS LIKE G2 PROBLEM) | REPLACE OPEN Q711 (PN: 8-729-423-44) LOCATED ON "C" BOARD |
| VIDEO MUTED & NO ON SCREEN DISPLAY | REPLACE CP111 DIODE (NOTE: PIN 36 LOW UPC WAITING FOR INPUT FROM OUTSIDE DIAGNOSTIC COMPUTER FOR DATA WHEN NO DATA UPC WAITS) |
| WON'T HOLD CHANNEL CAPTIONS | REPLACE IC1301 (NOTE: IC NOT LISTED AS MEMORY IC IN SCHEMATIC) |
| WON'T HOLD OR ERASE SOME CHANNELS FROM MEMORY & PINCUSHION DISTORTION | REPLACE IC102 (PN: 8-758-972-43) |
| WON'T TURN ON WITH REMOTE TURNS ON FOR SECOND IF MANUAL POWER BUTTON PRESSED RELAY WON'T TURN OFF | REPLACE Q604 (PN: 8-729-423-44) 2SA1309 LOCATED ON "G" BOARD |
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