Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | D7S | NO AUDIO OUTPUT BUT TRACKS DISC OK | No audio output, but unit tracks OK. PAM output missing fromIC301-17, but input good. | ||
| Sony | AVU270 | NO FM | Complaint of no FM, all other functions OK. Found no supplyvoltage at FM RF amp. Trouble was traced to excess lead length of L303which was touching the ground next to it. | ||
| Sony | APM615 | PART NUMBER CORRECTION - FRONT PANEL | Part numbers listed for item 12 in service manual areincorrect. | ||
| Sony | CCDV8AFU | NO PLAYBACK/NO RECORD | Was unable to get unit to record, playback or erase. Checkedheads with SL-5151 head checker. All checked OK. Checked record andplayback amps, worked fine. | ||
| Sony | CDXR7 | NOISE BEFORE SELECTION IS PLAYED WHEN USING AMS | A brief blip of sound is heard immediately before a selec-tion, accessed with an AMS key, is played. This also occurs occasionallyduring the initial play of a disc. | ||
| Sony | SLHFR70 | MALFUNCTION OF REEL MOTOR AND SYSTEM CONTROL | Found F002 in P.S. section open. After replacement, IC401 onSA-10 board gets very hot. Erratic reel motor operation. F002 gets openagain. Also, found D210 (SA-10 board) open. Gets hot after replacement,the other problems still exists intermittently. | ||
| Sony | CDP70 | INTERMITTENT SKIPPING | Unit would skip tracks intermittently at random. Tracedproblem to cold solder on M701 minus terminal. Have seen several unitswith either + or - terminals cold soldered. Since motor is assembled intoboard, this could be a problem on similar models also | ||
| Sony | CDP7F | NO FOCUS SEARCH | The unit would not focus search. | ||
| Sony | KV1952RS | UNIT SHUTS DOWN, REPLACE D502 | This unit would immediately shut down. We defeated the shut-down circuit by shorting the line from the HVR. Then running the unit upon a variac we found IC501/Pin 9 to be only 3.4V. The cause was a defec-tive D502. | ||
| Sony | KV1354R | UNIT WOULD NOT TUNE, REPLACEDIC-003 | The unit would not tune in the stations. It was not possibleto change the output of IC001/Pin 12 PWM out. The problem was caused by adefective PLL controller/IC003. Interestingly, the UPC seemed to work inall other respects - display, etc. | ||
| Sony | CCDV110 | S/M PAGE 20 WHAT IS NATRIUM LAMPS? | Page 20 list natrium lamps under difficult conditions forlinear auto W.B. -HQ COMMENTS: Natrium is the same as sodium vapor lamps. | ||
| Sony | TCD5 | PART NOT AVAILABLE - PAUSE SPRING | Part is on national back order. Pls assist in locating part. -HQ COMMENTS: There are none in the USA. Hopefully RPC (Tokyo Parts)will have some. Since this is an older unit though, they may not. | ||
| Sony | KV25DXR | DARK PICTURE - NO COLOR SYNC | Set had very dark picture and no color sync. | ||
| Sony | TAV5 | UNIT DEAD - NO POWER | Unit was inoperative due to malfunction of power supply.Static tests revealed Q901 base to collector short, R901 open and bothdiodes in IB901 circuit block were shorted. | ||
| Sony | KV1500 | WHITE DOTS ACROSS TOP OF SCREEN | White dots across top of picture, looks like unblacked VITSsignal. Vert. height and lin. controls have correct range. |