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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CPD15SF1 | BRIGHTNESS FLUCTUATES AFTER WARMUP, POOR CONTACT OF CRT PINS | After the monitor warms up, the picture brightness fluctuatesat irregular intervals. Tapping on C board revealed problem. | ||
| Sony | TCDD7 | NOISE IN AUDIO AFTER CUE OR REVIEW (FOUND REF. 322 DETACHED) | During cue and review tape would be pulled down in the tapepath. This would cause noise in playback once the play function wasresumed, due to misalignment of tape acrosss head drum. This wouldusually straighten itself out after a few seconds. | ||
| Sony | TCCD3 | NO AUDIO IN PLAY MODE (FOUND C326 ON ADA BOARD SHORTED) | There was no audio on playback mode. | ||
| Sony | MZR2 | DISTORTED AUDIO ON PLAYBACK, COUNTER FROZEN, FOUND IC603 BAD | Audio distorted and counter is frozen during playback. Thesound is the same in test mode 111. | ||
| Sony | D321 | ALWAYS SHOWS LOW BATTERY- LEAKY C831. IF .8V REPLACE | When using unit with rechargeable battery LCD indicates Low Batteryeven when battery was fully charged.Measured .8 volts at pin 34 of Syscon.Found leaky C831. | ||
| Sony | CFD768 | WON'T TUNE STATIONS; REPLACE D303, 30V RECTIFIER | Unit will not tune stations. | ||
| Sony | CFD560 | CANNOT CHANGE FUNCTION STUCK ON CD/ S603 STUCK CLOSED | Cannot switch to tape or radio, cannot activate tape dubbing. -SOLUTIOIN: Found S603, record switch, on the TC board always closed,straightened switch, unit worked fine. | ||
| Sony | EVS700U | NO AUDIO AND VIDEO RECORDING/CHECK FOR BOARD CRACK | Doesn't record video or audio, but erases old signal. Tracedto system control CPU. Found haircrack on PC board near IC101. Diagramattached. | ||
| Sony | EVS7000 | NO S VIDIO INPUT ON L1/CHECK SET-UP MENU | Line one has no S video input | ||
| Sony | CCDTR65 | DOES NOT RECORD OR PLAYBACK/REPLACE C303 | Unit has no video on camera or VCR. SOLUTION: Traced video signal in playback mode to pin 3 of IC151. Nooutput on pin 28. V mute on pin 29 4.7v. Disconnected pin 20 ofIC402. Picture became scrambled. Discovered C303 open. | ||
| Sony | CCDFX630 | DEAD/REPLACE X501 | Unit dead. | ||
| Sony | RMY122 | CANNOT OPERATE PANASONIC VCR WITH TV REMOTE | The RMY122 remote that comes with the set can not operate94 model Panasonic VCR's. HQ COMMENTS: The Tech. Dept. has a limited amount of upgraded RMY122remotes that contain the 94 VCR Panasonic codes. | ||
| Sony | KV32XBR37 | CANNOT OPERATE PANASONIC VCR WITH TV REMOTE, RMY122 | The RMY122 remote that comes with the set can not operate94 model Panasonic VCR's. HQ COMMENTS: The Tech. Dept. has a limited amount of upgraded RMY122remotes that contain the 94 VCR Panasonic codes. | ||
| Sony | KV32XBR36 | INSUFFICIENT WIDTH, REPLACED D518 | The unit had insufficient width. Pin cushion and othergeometry was good. The problem was caused by D518 changing its zenerthreshold. It checked fine with an ohm meter. Replacement resolved theproblem. | ||
| Sony | KV32S15 | VOL CAUSES SPEAKERS TO RATTLE, ADDED HEAT SHRINK TO SPK POST | Customer complained of vibrating sound from cabinet at normalprogram volume levels. Servicer tried normal fixes of lining bezel withscotch tape and silicone, no help. He was able to duplicate resonance withaudio gen input freq from 100 to 150 Hertz. Fin |