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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CFD30 | TAPE NO PLAY | Pinch rollers and head will change direction but take up reelsdon't move. Pinch arm heavy spring pops out of groove. Approx 2% ofrepairs. | ||
| Sony | CFD20 | TAPE DECK WILL NOT PLAY ON REVERSE | Head of tape deck stuck halfway turn, causing head assy notto go up. Reason is spring attached to rec protect plate pops out. | ||
| Sony | CFD20 | TAPE W & F UNSTABLE | Wow and flutter fluctuates over 1% range. Too much play inpower arm assy, causing wobble in drive gears. 2% of CFD20 deck repairs. | ||
| Sony | CFD20 | BROKEN CHASSIS | Broken chassis, as per FPR O1058. I have seen two units thisweek with this problem. | ||
| Sony | CDF454 | MECHANICAL NOISE AFTER REPLACEMENT OF NEW TYPE IDLER SPRING | After replacing idler spring in tape section wtih new spring390516801, unit may come back with mechanical noise complaint atbeginning of tape (90 min). So far the only fix is to put old stylespring back in unit. -HQ COMMENTS: The spring has been impro | ||
| Sony | SLVR5UC | LOADING MECH LOCKED UP | When power on loading mechanism keeps going by itself until itlocks up. Found loading motor only goes one way. SOLUTION : Defective loading motor drive IC502 875998345. | ||
| Sony | SLVR5UC | TU BRAKE FAILS, BUT NO SIGNIFICANT SYMPTOMS | Visual inspection shows metal to plastic contact between ref.270 and TU reel. Found that the brake lining had been pushed out of placeon the brake assy, so it no longer made contact with the TU reel.This failure has no obvious operational symptoms. I not | ||
| Sony | SLVR1000 | NO COLOR ON PLAYBACK | No color on playback, but on E-E is ok. SOLUTION : Found C422 loose solder on one leg, pushed up from underthe board by the plastic shield. | ||
| Sony | SLV771HF | INTERFERENCE IN PICTURE, RESEMBLES COCHANNEL INTERFERENCE | Interference in all lmodes. Looks like co channelinterference. -SOLUTION : Traced to and replaced RF unit. | ||
| Sony | SLV750HF | INTERMITTENT TUNER | Tuner is intermittent, tried soldering, however tapping ontuner still has noise in picture.SOLUTION : Replaced tuner. | ||
| Sony | SLV750HF | VCR+ NOT WORKING | Unit would setup VCR+ channels ok, but would not set to recordVCR+ programming. After entering the VCR+ code and pressing the once,daily, or weekly buttons the unit would not repsond with the time andchannel selection to be recorded. The tuner timer an | ||
| Sony | SLV720HF | CASSETTE INSERTS ONLY 1/2 WAY | Cassette inserts 1/2 way most of the time. | ||
| Sony | SLV720HF | NO TUNER | No TV selection when using VCR tuner. SOLUTION :Find out the 30v +B source at TV702 is missing. And thatsource of +B is supplied by IC181 at pin 7. IC 189 is not working becauseit doesn't have a source of B+ coming in at pin 6. Fuse PS181 is bad but | ||
| Sony | SLV720 | PIX HAS WHITE NOISY BAR, DISTORTED AUDIO | Picture noisy fades in/out with audio due to lack of capstan.Feedback servo, found C412 capacitor has cold solder. | ||
| Sony | SLV700HF | DEAD UNIT | Cap exploded, C106. SOLUTION : Power block had poor solder, resoldered entiresupply end to end, replaced cap. Unit ok. |