Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CDP470 | SYSTEM WOULD NOT READ TOC | Servicer called for assistance after several components in-cluding the optical block were replaced. Unit would spin, focus searchbut would not read TOC. Indicated No Disc. I noticed that whenever Imoved the leads on connector CNJ-201 for the optical p | ||
| Sony | CCDF55 | DISTORTED IMAGE | When bright lights (incandescent to birthday candles) are pre-sent in the image a large vertical streak appears to the bottom of thepicture. | ||
| Sony | CDX7520 | NO POWER | No power - unit reset ok. | ||
| Sony | XR7180 | NO AUDIO OR LOW AUDIO FROM SPEAKER OUT; LINE OUT O.K. | Low or no audio from speaker out when air conditioning orhead lights are on line out ok. | ||
| Sony | CCDF55 | HALL ADJUSTMENT | 3-3-5 Hall Adjustment No. 12 has a formula to calculate C butnever says it is needed in subsequent steps. | ||
| Sony | TAE1000ESD | NO AUDIO OUTPUT | Unit had no audio output unless it was in the Dolby Surroundmode. Data entered pin 10 of IC-506 but was not at the output (pin 11).Found by comparing to another unit that all digital audio originated frompin 11. IC-1001 and IC-506 had been previously r | ||
| Sony | MDP510 | IMPROPER SKIP SCAN AND CHAPTER JUMP OPERATIONS | Unit had difficulty loading and playing. If you went FWD orRVS with shuttle, unit would work marginally. If you used skip or chapterjump, unit would loose focus. The lens would touch and mark the disc, es-pecially on the outer tracks. | ||
| Sony | SLV676UC | LAST DIGIT IN DISPLAY TAPE COUNTER FORMS ONLY A DASH | The last digit of the tape counter in the display would notform any numeral only a dash (center segment only illuminated). Replacingdisplay drive/mode control/timer IC-201 did not fix the problem. | ||
| Sony | CCDF31 | "Y" SIGNAL OVER DRIVE | On Playback Y signal was over driven and the whites were al-most silver and the yellows were almost white. Observing video out, youcould see the white bar clipping. Traced problem to IC-361, pin 30 lookedok, pin 18 looked clipped. | ||
| Sony | WMAF59 | TAPE PLAYER AUDIO DOES NOT CHANGE WHEN DIRECTION IS CHANGED | During tape direction change, audio does not change. Graduallyaudio will change. Mechanism reverses S-304 operating normally. FoundIC-301 has internal switch for head switching during reverse operation.The low B+ supply to IC-301 causes head reversal o | ||
| Sony | XR5500 | EJECT MECHANISM STUCK | If Eject lever is not pushed all the way in, and tape is re-moved, the holder assembly moves to load position (down position). Whenyou try to eject again (move to loading position), it will not workbecause lock assembly eject cam gets in the way of the | ||
| Sony | CCDF45 | NO COLOR IN PLAYBACK | No color in Playback. EE mode is OK and tapes recorded inthis unit will Playback ok in other 8mm units. Also units had whitehorizontal streaks running through picture. Found Playback YC out atCN-502 pin 20 looked good but RF signal at base of Q-228 lo | ||
| Sony | SLV50HF | BLUE SCREEN ON WEAK STATIONS | A blue screen is seen or recorded when a weak station isreceived. | ||
| Sony | CFD750 | INCORRECT PART SUBSTITUTION - T901 | The P/N is being subbed to 1-450-150-11. The sub transformeris completely different physically. It may be different electrically aswell. It can't be mounted in the PCB so I can't tell. The originaltransformer is a typical iron core, wrapped with plas | ||
| Sony | WMAF23 | PART SHIPPED WITHOUT LEADS - TH 602 | Original part supplied with leads. Part supplied by RPC is achip component. One with leads is needed. The thermistor is shown onpage 7 of the service manual (edition of 1989.1). The manual part numberis 9-953-598-11. -HQ COMMENTS: The P/N indicated |