KV27EXR25 Repair Tips


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Results 12
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Sony KV27EXR25
No raster, the set will click on but no high voltageReplaced IC651 on the power board type STRS6301 Note: Use an original STRS6301, not an STRS6301A unless the 6301A comes from SONY This part does run very hot
Sony KV27EXR25
No power, no raster, relay comes onFound horizontal trans short
SonyKV27EXR25
PIN CUSHION AND LOCK ON CH 2, IC104 No sound, pin cushion problem, and came up onlyon channel 2. Only function that worked was the power on/off.
SonyKV27EXR25
UNIT SHUT DOWN, REPLACED IC101 Shut down intermittently. OSD had a 60Hz bend only OSD picture perfect.
SonyKV27EXR25
IMMEDIATE SHUTDOWN, REPLACED OPEN C655 ON G BOARD Immediate shutdown. No Switching Mode Power Supplyregulation.
SonyKV27EXR25
NO POWER, REPLACED Q608 Unit would not turn on. Found transistor Q608 leaky betweenemitter and collector. This caused a positive voltage to forward biasQ607, which in turn grounded the base circuit of Q601, the relay drive.
SonyKV27EXR25
NO OPERATION, REPLACED IC-651 ON THE "G" BOARD Inoperative set- hear relay click.
SonyKV27EXR25
"H" BRACKET PART NUMBER MISSING, 4-397-916-02 On the chassis exploded View I need the plastic bracketbehind reference number 3, which clips onto the H Board. This partnumber was omitted from the Service Manual. -HQ COMMENTS: The part number is 4-397-916-02. This part is notavailable in KC at this
SonyKV27EXR25
BUZZING IN AUDIO, GROUND OPEN There was a constant buzzing in the audio. After extensivetrouble shooting, the servicer found the ground pattern from connectorA-23 pins 3 and 4 to connector A-24 pins 3, 4 and 5 were rubbed loose fromthe board for about three inches. Since it was und
SonyKV27EXR25
NO PICTURE, REPLACED OPEN R702 ON "C" BOARD There was no picture, and no voltage on G2. I found R702open.
SonyKV27EXR25
PICTURE BLURRED ON HIGH WHITES - SMEARED TO THE RIGHT, Q712 Picture looked like weak CRT.
SonyKV27EXR25
WIDTH PULSATES, LEAKY Q-611 ON "G" BOARD Width would pulsate. B+ would change from about 70V to 135V.Found Q-611 was leaky E to C. -HQ COMMENTS: This will be of help for other people. Thanks.