Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18938
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1710 | INTERMITTENT LOSS OF PICTURE | Highly intermittent loss of picture and sound leaving onlygray raster. Loss would be from seconds to hours with no patterndetectable. | ||
| Sony | KV1515 | NO CHANNEL TUNING | Unable to tune channels 2 and 4, found VC drive transistorQ101 leaky, unable to bring voltage lower than 9VDC. | ||
| Sony | KV1207 | JAIL BARS ON THE SCREEN | Very dark jail bar pattern on screen. Bars were so darkthat they blanked picture where they were. Found horizontal pulses onthe +12V line at Pin 10 of IC301, and discovered leaky C323. | ||
| Sony | KPR4600 | NO SOUND, REPLACED IC-3010 | No sound, found switch voltage (4VDC) reading 1.5VDC onIC3010. | ||
| Sony | KP4600 | MIS-CONVERGENCE | Extreme mis-convergence on left and right sides of the screen(for about ten inches). | ||
| Sony | KX2501 | PICTURE FADES OUT WHEN EXTERNAL AUDIO PLUGGED IN, D1206 | Picture fades out when external audio plugged in. R675 openon GA board, R02 burnt on U1 board, Q1343 and R1409 open on BD board.Replaced these parts. Video would fade out when audio plugged to eitherext. input or multi-connector, measured 8.5 to 9.1 VD | ||
| Sony | KX2501 | DEAD, REPLACED DIODE ON "K" BOARD | EVP-1 ckt operational, shutting down PPS. Replaced open R675.Unit produced raster. Hooked up a VTX-1000R. Unit smoked and went dead.R675 open again, Q1343 open, R02 on U-1 board burned. Replaced all parts.Unit again functional. However it was found | ||
| Sony | KX2501 | SHUT DOWN, REPLACED Q652 ON "GA" BOARD | Either horiz. scan comes up and goes immediately to horiz.shutdown or does not come on at all. Voltage on Q108 relay drive base lowand relay will not activate when transistor completely shorted prior togoing bad would come up and shutdown within 3 secon | ||
| Sony | KV2649R | POOR PICTURE, ADJ VHF AGC | Poor picture on cable busy background. | ||
| Sony | KV2648R | NO PICTURE, REPLACED Q502 | No picture, high pitch squeal. | ||
| Sony | KV2648R | NO PICTURE, REPLACED FBT AND Q502 | No high voltage. Flyback shorted causing horiz. output tofail. | ||
| Sony | KV2648R | HORIZONTAL BARS ON THE SCREEN, REPLACED PRESCALER AND TUNER | Horizontal bars on all channels. | ||
| Sony | KV2648R | SQUEAL FROM POWER BOARD, REPLACED T602 | Squeal from power board. Pressing on F board changes pitchof squeal. When pushing on board directly beneath POT squeal stops. | ||
| Sony | KV2648R | NO VOLUME CONTROL, LEAKY Q4025 | The bar pattern would not extend across the screen. | ||
| Sony | KV2647R | PICTURE FADE AFTER TIME, RESOLDER ON "C" BOARD | Video would begin to fade after 2 hours. Wire to C board-12VDC to outputs had intermittent cold solder connection at trace next toC702, appeared to be thermal problem. |