Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CFS730 | NO OPERATION WHEN UNIT POWERED FROM BATTERIES | Authorized servicer found 2 units which would not work whenpowered by batteries (second unit was serial number 5000740). Servicerfound glue on one of the battery terminals but did not specify which one. | ||
| Sony | ITD100 | NO RING | Cold solder joint on C-11. Also pertains to serial number30134. | ||
| Sony | PSX800 | TURNTABLE ARM WON'T DROP TO RECORD IN AUTO PLAY | When Start/stop is pressed, the tonearm balances and moves tothe beginning of the record but will not lower to the record. -HQ COMMENTS: The FF motor was defective, I noticed when manually movingarm across the record, using the Forward arrow and the fas | ||
| Sony | CDPC20 | NEED PART NUMBER FOR FRAME | No part number is listed in the service manual for frame. -HQ COMMENTS: A service bulletin was issued on July 25, 1989. It isHi-Fi #078. P/N for the frame is 4-924-407-06. A plastic pin whichretains the one of the table drive gears is missing on the | ||
| Sony | ICF2010 | POOR AM RECEPTION | AM reception is very poor. Signal strength good, full LCD.After the tech. rep. comp. service bulletin No. AUD0094, same problem.After troubleshooting we found CT-5 was dirty. | ||
| Sony | KV2782R | UHF DRIFTS - VHF OK, REPLACE TU-101 | Performed voltage analysis tuning voltage chart. Bandswitch-ing and tuning voltage were operating correctly and all other voltageswere present. Still no UHF or drifting when locked in. | ||
| Sony | KV9300 | NO VERTICAL SWEEP | No vertical sweep. The base of Q-503 had a vertical pulse onit. Voltages were changing when you adjusted RV-502 (V. hold) and RV-503(V. size). No vertical pulse on collector or emitter of Q-503. Checkedfor open Q-503 which checked ok. Performed resi | ||
| Sony | KV2670R | BEAT PATTERN IN PICTURE/PIC. DARK/LOOSE TUNER/SOUND BREAKS | All problems above occurred because loose connections on +9Vregulator Q-204. The high resistance connections caused the 9V DC levelto vary between 9 and 4vdc. Thus causing the tuner chroma/luma jungle ICand audio circuits to do many strange things. | ||
| Sony | KV2680R | NO VIDEO THROUGH TUNER OR VIDEO INPUTS, IC-1410 | No video through any inputs. Sound is ok with blank rasteronly. Traced video with a scope to pins 2 & 7 of IC-1410. Nothing comingout of pin 4. | ||
| Sony | KV27TS20 | NO HIGH VOLTAGE, REPLACE IC-301 | No high voltage, no horizontal pulse from pin No. 12 ofIC-301. Verified all B+ voltages present and checked for shorts on outputleg (both sides of C-508). All ok. | ||
| Sony | KV2675R | SHUTSDOWN UPON TURN ON, C-609 OPEN | Shutsdown upon turn on. Relay clicks then kicks back out.Scoped B+ line to relay and found a half wave 50V AC pulse unfiltered.Found C-609 open. | ||
| Sony | KV2644R | EXCESSIVE G2 - CAN'T ADJUST | Excessive G2 would not adjust with G2 control. One side ofresistor has B+ the other side had no voltage. Measured and found R-749open causing no ground return for G2. | ||
| Sony | KV32XBR55 | MENU WOULDN'T OPERATE PROPERLY - OTHER REMOTE FUNCTIONS OK | When you call up memory for menu and then hit return, the TVwould shutdown and then turn back ON by itself and be in micro lockup.Then you would have to unplug TV to reset it. All voltages and waveformslooked ok around micro and sub control IC. | ||
| Sony | KV32XBR51 | NO AUDIO FROM SPEAKERS BUT SUBWOOFER AUDIO IS OK | No audio from side speakers and subwoofer is ok. IC-2451shorted which opened PS-2401 fuse link. | ||
| Sony | CCDV101 | NEED PART NUMBER FOR THE DRUM BASE | I need the drum base for a CCD-V101. The manual shows it aspart of the drum assembly. It is not included when ordering the drumassembly. -HQ COMMENTS: The partnumber is X-3686-482-5 and is in stock in KCP. |