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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TAAX301 | VOLUME GOES DOWN BY ITSELF - Q919 FAULTY 8-729-900-36 | The volume control motor (Vol Motor) constantly turned thevolume down by itself. | ||
| Sony | FH11W | NO DISPLAY DUE TO NO AUDIO - Q910 FAULTY, P/N 8-729-103-33 | The unit had no display. | ||
| Sony | TCWR620 | NO RECORD, IC51 FAULTY P/N 8-759-106-56 | No record. | ||
| Sony | STRAV770X | TAPE MONITOR LIGHT ALWAYS LIT - RESOLDER IC502 ON MAIN BOARD | When unit is powered up, the tape monitor light stays onconstantly. | ||
| Sony | BM246 | DECK "A" INOPERATIVE, SYSTEM CONTROL IC901 | Deck A, no motor operation. Deck B works unless there is atape loaded in deck A, then deck B will not operate. Rew/FF and programRew/FF search works in both decks, A and B. | ||
| Sony | BM246 | BLOWS FUSES, REPLACED PM701 & Q776 AND REMOVED SOLDER BRIDGE | I traced the problem to deck B where I found a shorted ejectsolenoid PH701. I replaced the solenoid and noticed the current drain washigher than usual. I disconnected CN701 and noticed the current drainwent down. I found a high resistance short (base | ||
| Sony | BM246 | ERRATIC DISPLAY AND IRREGULAR MOTION BOTH DECKS | With cassettes loaded in both decks' A and B auto changeswitch set to on, when reverse time switch (S933) is moved from 0 to 9,it will cause both decks to go into rewind mode. The display will also beerratic. | ||
| Sony | STRAV910 | POWER WOULD NOT SHUT OFF - Q852 LEAKY P/N 8-729-119-78 | After power button would be pushed to turn off unit, displaywould blank out but unit would remain on. Power relay line would remainat 4V. | ||
| Sony | CCDF45 | SHUT DOWN IN REVIEW OR ANY REVERSE FUNCTION/Q-004/CC-26 BRD | Using scope, I traced signal from D301 supply reel sensor onFP 89 to IC001 on CC26 board to Q004 emitter. Q002 and 004 combinesignals into the matrix for takeup and supply reel sensing. I found Q004emitter to have a slightly more noise the Q002. | ||
| Sony | D34 | NO AUDIO - R508, R509, R201, R202, C519 MISSING | Optic will not read TOC. We checked adjustments and they didnot have traverse wave form. Upon further inspection I found certainparts missing. They looked to be cold soldered. The parts missing are asfollows R509, R508, C519, R201, R202. Also credit | ||
| Sony | CCDF55 | XSISTOR SUB IS TOO BIG/USE P/N 8-729-905-36 | Ordered above surface mount xsistor from NPC and received872912028 2SC1623. This part is physically 2.7mm wide vs 2.0mm for theoriginal part. I don't think it will work since lands are xtremely closetogether. This is a very common xsistor in all camer | ||
| Sony | SPP170 | UNIT DIALS 7'S BY ITSELF WHEN LOCKED UP - CHANGE IC-506 | After locking the handset up with the base, the unit wouldoutput about seven 7's to the analyzer. If you unplugged the phone cord,then replugged it back in, the dial tone would come back. First, Imeasured the dialer crystal (X502) which was good. Then I | ||
| Sony | CDX5080 | CORRECTING CHATTERING AND SKIPPING AT THE BEGINNING OF DISC | 99% of chattering & skipping at beginning of disc can becorrected with following regimen: Implement bulletin CAR0249R1 and inaddition resolder and clean flux from both SW-90 and SW-91 solder pads.Be sure SW-90 and 91 contacts are cleaned and burnished. | ||
| Sony | TCS430 | CORRECT PART #, WRONG PART | Q311 shorted. Replaced it, but still no audio. I checked thepick ticket. Ticket said DTC114YK. I checked the schematic descriptionof Q311 and it was DTA114YK, I checked the part number again on schematicand FIPM and Sony semiconductor book. The book | ||
| Sony | SLV696HF | NO E TO E VIDEO: IC102 MA106 BOARD | No E to E video. IC-102 on the MA-106 board not switching. |