Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2645RS | TUNING WOULD NOT LOCK, REPLACED S2262 | TV would continuously scan through all channels. Foundchannel up button closed. | ||
| Sony | KV2645R | DARK PICTURE, REPLACED R-751 | Dark picture like weak CRT. Found R751 changed value. | ||
| Sony | KV2601 | PART NUMBER MISSING | Servicer has KV-2601 with spark gap on C board shorted -schematic designation SG. The part number was omitted from the servicemanual of all the above listed models. -HQ COMMENTS: The spark gap in question is not available as a separatepart. It comes w | ||
| Sony | KV1945RS | PICTURE DISTORTION, REPLACED C544 | Severe pincushion problem, pin control has no control. Baseof Q503 was negative instead of 2V. Found signal on base has a lot ofspikes, which could come only from one point, the flyback. C544 was opencausing no filtering. | ||
| Sony | KV1945R | NO PICTURE, REPLACED SHORTED Q006 AND Q008 ON MD BOARD | This set had no VC voltage and band selection voltages werewrong at tuner. | ||
| Sony | KV1945R | SHUT DOWN, TRIMMED R563 | This unit intermittently shuts off by itself. | ||
| Sony | KV1913 | PICTURE DISTORTION | These two units came in with high brightness with retracelines. Found R721 open. | ||
| Sony | KV1543R | INTERMITTENT REMOTE OPERATION, REPLACED C005 | Remote commander operative only about 10% of time, mostfunctions completely inoperative. With scope probe at TP 52 M-2 boardabout 5Vpp random noise present and remote control signal distortedwhen actuated. | ||
| Sony | KP5000 | PICTURE DISTORTION, LOOSE SCREW ON HOR DRIVE TRANS. Q5104 | Intermittent horizontal sweep problem causes sweep to collapseand burn a vertical line in the three picture tubes. | ||
| Sony | KV2648R | SNOW PICTURE, REPLACED PRESCALER | Picture would go to snow after about 5 minutes after turn-on.Set was OK when cold. 12 volt line would drop to 7.5V and voltage atprescaler would drop to 1.5V. | ||
| Sony | KV2648R | HIGH PITCH NOISE | The unit makes a high pitch sound like a flyback with loosecore. Replacing POT transformer did help a little but still audible.Wedging the transformer almost reduce noise but awkward solution. | ||
| Sony | KV2647R | TUNING DRIFT, RESOLDER R053 | Upon changing channels a good video will come on for a momentbut will drift off to barely viewable negative picture. | ||
| Sony | KV2647R | NO CONTROL OF BRIGHTNESS, BROKEN FOIL ON CRT BOARD | No control of brightness. Picture would start at normallevel and slowly get dimmer with retrace lines, then flash to normalpicture level again. No G2 voltage on Pin 12 of CRT board. | ||
| Sony | KV2647R | PICTURE DISTORTION, REPLACE C549, C550 AND C554 | Slight PIE CRUSTING and marginal horizontal sync. | ||
| Sony | KV2645R | NO REMOTE OPERATION, REPAIRED CRACK ON N BOARD | Unable to control operation with remote. Found hairlinebreak on N board. |