| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CDP400 | LOOSE WIRE IN CN22 | Insert disc, runs fast for 15 sec. then ejects servo.Circuits check out OK. | ||
| Sony | XRM10 | NO TAPE EJECTION | Motor would run at all times and tape was difficult orimpossible to eject. Press-fitted pin becomes loose. Therefore, themotor keeps running. -HQ COMMENTS: New part has no notch, which presents the pin from becominloose. You can obtain one from RPC/T | ||
| Sony | TTS81 | MISSING INSTRUCTIONS IN MANUAL | No instructions are given on how to set tracking force. | ||
| Sony | TCFX600 | RELAY NOT TOGGLING PROPERLY | In playback, when going from Dolby off to Dolby C, unitbreaks into oscillation in both channels. When going from Dolby B, toDolby C, no problem. Unsoldering either Pin 2 or 8 of IC001 cures theopposite channel. | ||
| Sony | TCFX7 | INCOMPLETE INSTRUCTIONS IN MANUAL | Page 22 of S/M, instructions for servo adjustment areincomplete. Step 7 should refer to Pin 21 of IC902 for pulse adjustment. -HQ COMMENTS: As you pointed out, the TP (silk-screened as SPEED) isnot shown for the #7 in the adjustment procedures. The Pi | ||
| Sony | TAN88B | INCOMPATIBLE V-FETS | Replaced V-FETS with new ones and power supply fails. Butwhen a set of V-FETS from another unit are used, unit worked correctly. | ||
| Sony | STRVX550 | TAPE DECK PLUGGED INTO AC OUTLET ON BACK MALFUNCTIONS | Tape deck plugged into this unit STOPS/STARTS/REWINDS etc.automatically and randomly upon POWER ON/OFF activation. It is notedthis only happens when the speaker grounds are wired together or when unitis used with a speaker switch box that does not have | ||
| Sony | PSX75 | DEFECTIVE HALL IC D601 | The turntable motor did not turn although there was a kickpulse (current) through the motor coil. | ||
| Sony | PSX75 | NO STYLUS FORCE | The tone arm did not go down and there was no stylus force. | ||
| Sony | MTL10 | DETECTION SENSITIVITY ADJUSTMENT MISADJUSTED | Unit would not line up properly to load the first cassette. | ||
| Sony | M100B | TAPE JAMS | The unit jammed the tape intermittently. When it happened,the take up reel was not turning although the capstan and the pinchroller were turning fine. | ||
| Sony | ICF7750 | OPEN FOIL TRACE | Sound was very low and distorted or there was no sound atall. We found an open foil associated with R41. The foil looked finebut was open. Foil repair resolved the problem. Although this appearsto be a straight forward repair, it STUMPED the technici | ||
| Sony | CRF320 | BAD CONTACT ON SS-6 SWITCH | The unit came in with very poor sensitivity in AM, SW and LW.Checked and found there was almost no local oscillator signal at thecenter tap of IFT201 in the second mixer circuit. | ||
| Sony | CDP501ES | MISSING GROUND PATH | At the end of each selection of music unit would go intoPAUSE, no matter what position switch S917 was in AUTO/PAUSE. | ||
| Sony | XR75B | JAMMED TAPE | Tape jams or unit will not take up tape. Problem is withPart #318 on P51 S/M. Roller bearing on right side of tray is bent andloading mechanism cannot move smoothly. |