Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | D14 | DOES NOT PLAY | Found in service mode that spindle would run free no sledmovement in either direction display OK/changing. Found no -5.2V comingfrom DC/DC convertor. | ||
| Sony | CCDV8AFU | WILL NOT REWIND OR FF | Pinch press lever assy would not return to stop position afterbeing in playback mode. Found E clip holding pinch press lever assywas in contact with the assy. The E clip was not in contact with assyon a known good unit. | ||
| Sony | SLHF900 | UNIT EATS TAPES | Unit loads tape, FF & REW OK. Capstan speed too fast when inPB. Will not stop or power down in PB. Found IC501/28 (3.58mHz) was lowor missing (0.5Vpp at times). Traced back to VI-10 bd, found Q401 basesignal good but emitter signal 0.5Vpp. Voltages | ||
| Sony | KV1311CR | NO VERTICAL, REPLACED IC-501 | The unit would power up but there was no pix or sound. Wefound the problem to be caused by IC-501. There was no vertical drive tothe vert. output IC. Of course this did not permit the syscon IC tooperate correctly. Replacement resolved the problem. | ||
| Sony | CDXA10 | UNIT TRIES TO LOAD TWO DISCS | The customer complained that the unit would periodically jam.We found that one disc (David Sanburn/Voyeur/Warner Bros 3546-2) made byPolygram in West Germany was causing the problem. | ||
| Sony | STRVX550 | UNIT WILL NOT TURN ON | The unit would not power up. We found IC403/P8 - remotedecoder to be low. This is the RESET pin. This was caused by an openC824 on the main board. Excessive ripple at IC402/P1 & 2 did not permitthe reset circuit to operate properly. | ||
| Sony | TCFX1010 | UNIT WILL NOT POWER ON | The unit would not power up. There were no key scan pulsesfrom IC703, although the clock was running, etc. | ||
| Sony | STRVX200 | NO FUNCTIONS | No functions were operative. We found a solder splash acrossthe 16V regulator - Q803. This caused D803 to short and R804 to open. | ||
| Sony | SLHFR70 | DISTORTION IN BETA HIFI | Distorted audio (BHi-Fi), beginning of tape only. | ||
| Sony | SL100 | WILL NOT ACCEPT TAPE | Will not accept tape. | ||
| Sony | CCDV8 | CAPSTAN RUNS TOO FAST | Capstan motor runs fast. | ||
| Sony | CCDV8 | NO DRUM SERVO | Drum cylinder IC (IC501) gets very hot to touch. Cylinderdoes not rotate. | ||
| Sony | SL100 | POOR VIDEO | Unit displayed poor video. Looked like bad heads. (B) headmissing from envelope. | ||
| Sony | STJX520 | NO FM - THEN NO STEREO OR LOCKED DISPLAY | The unit came in with a broken tuner board. When the newboard was installed there was initially no FM. This was due to Jumper 81missing. Then the FM would not come in stereo or display the tuned sign.This was due to IFT-202 being misaligned. | ||
| Sony | KV1965 | UNIT SHUTS DOWN, REPLACE C553 | The unit would immediately shut down after the power switchwas engaged. Walking the B plus line up on the variac revealed adefective C553. It was actually burned off and arcing on one end. Thisof course would account for the shut down. It is interest |