Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18938
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRAV880 | NO POWER - UNIT DEAD | Unit had no power - completely dead. | ||
| Sony | D7 | INSUFFICIENT LINE MUTING | Insufficient line muting. When pushed, line output wasreduced by better than 40dB but not totally muted. Signal level slowlydropped off from this point and finally muted completely after severalseconds. The effect was not noticeable on headphone outpu | ||
| Sony | KX2501 | DEAD, CONNECTOR SHORTED,ALSO REPLACED Q652, Q651, AND Q653 | Set came in dead. Found connector shorted and Q653 and Q651reading 40 ohms between base and emitter (forward and reverse the same). | ||
| Sony | RM708 | NO COMMANDER OPERATION | This remote commander produced no infrared output. Thetransmit indicator did light. | ||
| Sony | KV2650R | AFT DRIFT, LEAKY Q024 | When you tuned a station it appeared as if the AFT wassearching before it locked in on the strongest portion of the signal.VC was changing slightly before it locked. | ||
| Sony | KV2649R | NO SOUND, REPLACE IC605 | No sound in left or right channels. | ||
| Sony | KV2648R | NO BAR DISPLAY, REPLACE SHORTED Q4028 | No bar display in any function except if volume was atmid-range. Picture control would increase or decrease length of bardisplay. With color, hue or brightness there was no bar display.Pressing hue, bar was all green. Checking input to counter reset, | ||
| Sony | KV2647R | WHITE H LINES ON THE PICTURE, REPLACE Q001 | The picture had white horiz lines producing a venetian blindeffect. There was also a buzz of 7-8kHz in the sound. We found that theVC line was not being properly filtered. Found Q001 (FET) in the activefilter to be defective. | ||
| Sony | KV2647R | DARK PICTURE, SHORTED C725 | This unit had a dark picture and the picture control did verylittle. Found C725 shorted. | ||
| Sony | KV2142R | NO PICTURE, REPLACE C2213 | 33V line shows video on DC of about 1 1/2V. After warm-uptuner drifts off channel with or without AFC. | ||
| Sony | KV1953R | NO TUNING OPERATIONS, REPLACE IC003 | Channel up or down inoperative. Also unable to erase anychannels. No logic change at Pins 1-4 on IC003. | ||
| Sony | KV1952RS | NO FUNCTION, REPLACE X2001 | Unable to control volume picture or channel change. LED wouldnot light. Found osc crystal low in amplitude at IC2001. Freezingcrystal would change amplitude from 20mV to 2V. | ||
| Sony | KV1946R | DARK PICTURE, R715 OPEN | Picture was dark. Measured screen voltage. Range was from105-185 Vdc. Found R715 reading in the megohms. | ||
| Sony | KV1922 | PICTURE DISTORTION | Set had pincushion problem. Traced problem to Q514. Signalat collector was distorted. | ||
| Sony | KV1915 | DARK PICTURE | Picture was very dark. No brightness and no 900V to CRT. |