Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CDP30 | MULTIPLE PART NUMBERS - IC106 | IC106 shows three descriptions and two part numbers on page 44of service manual. Also page 35 shows all three descriptions. Which oneshould be used (-55RS in unit)? -HQ COMMENTS: 8-759-920-17 (-75RS) has been subbed to 8-759-921-75(-82RS). Please ord | ||
| Sony | SL5800 | NO COLOR | No chroma. IC6, IC7, IC8 on YC-14 board all OK. Pins 12, 11,10 of IC6 had 0V DC level. Pin 3 of IC6 had proper waveform but 8Vppinstead of 1Vpp. | ||
| Sony | KV1547RX | INCORRECT PART # IN S/M | Please notice on page 48 that the S3003 is P/N 1-553-656-00.After receiving the wrong part, we looked at the P/N on the switch whichis 1-552-656-21. -HQ COMMENTS: We will publish a S/B on this. | ||
| Sony | SL20 | ILLUSIVE SERVO PROBLEM | Cap DC bias difficult to adjust, tracking control had noeffect on picture. | ||
| Sony | KPR4600 | STREAKING IN PICTURE, REPLACED Q-3349 | Unit had streaking in picture. By flexing BA board, problemwould clear. Found transistor Q3349 defective. Moving just transistor, Iwas able to produce problem. I think transistor had a break inside. | ||
| Sony | KV25XBR | NO SOUND, REPLACED FUSE WRONG SPEAKER IMPEDANCE USED | No sound, found F651 open. | ||
| Sony | SLHFR70 | SPECIAL EFFECTS | When going into special effects, pause slow motion etc, youwould see about 10 black horizontal lines 3/8 inch thick, top to bottom ofscreen. Video was present with these bars. Found problem in JOG circuit.Performed alignment RV13, 14, 15 and 16, and fo | ||
| Sony | KV25XBR | LOCK-UP | Set will not come on or may come on but no other functionworks. Checked the reset pulse at Pin 3 of IC103 and found it low alltimes. Unsoldered Pin 3 and voltage went up to 5V. Resoldered Pin 3 andset began to work. Pin 3 now goes to low momentarily | ||
| Sony | TTV8U | BEATS ON PICTURE | Beat on picture like adjacent channel interference. | ||
| Sony | BMC550 | SKIPS ON PAUSE | Glitch on picture. | ||
| Sony | SLHF600 | DRUM ASSY | We ordered the drum assembly of the above unit, KC sent usthe right number but the plug was different. | ||
| Sony | SLHF400 | LOSS OF CAPSTAN LOCK WHEN HOT | When unit is HOT after approx 2 hours, record and playbackhas loss of capstan lock glues, an indication of tracking problem.Picture may lock on playback with tracking control to one end of range. | ||
| Sony | SLHF300 | LOSS OF TRACKING IN PLAYBACK | Servicer complained that unit would loose tracking in playback and tracking control had no effect on pix. Record mode was Ok.Slight leakage was detected on Q5, causing base of Q507 to go high andturn on, putting composite sync on Pin 3 of IC501. | ||
| Sony | SLHF300 | TAPE CRINKLES AT START | At start of tape, lower edge of tape crinkles for a fewseconds. This is not consistent and happens to various brands of tape(mostly L-750) so tape does not seem to be the fault. -HQ COMMENTS: Please try the Japanese T/N that I faxed to you(BET-855043, | ||
| Sony | SL2415 | INTERMITTENT TAPE JAM ON EJECT | This unit displayed poor rewind torque in the eject mode.This resulted in the tape intermittently not being rewound into the shellall the way. Tape jam then occurred. Normal rewind, fast forward andplay torques were adequate. Replacement with the impr |