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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SLHF400 | AUDIO NOISE IN BETA HIFI | Checked S/N at 400Hz, was -68dB. Checked distortion at 400Hz,1kHz, 5kHz and 10kHz all read less than 2 1/2%. But a buzzing noise isheard also sounds like pumping. Buzz can be heard on movie Blue Thunderwhen he sets his watch. Also noticed buzzing on | ||
| Sony | MDRE248 | NEED P/N FOR EARPHONE CORD ONLY | Need part number for earphone cord only. -HQ COMMENTS: In order to get the cord you must order P/N X-2386-407-1which is connector item #3 in service manual. | ||
| Sony | XR66 | NO AM | The unit had intermittent AM operation. We found the 8V bussto the tuner to be loading down. The problem was caused by a defectiveC516/47uF @ 10V. | ||
| Sony | SLHF400 | NO AUDIO | No sound. | ||
| Sony | TCFX410R | TENSION SPRING | Need head tension spring P/N 3-319-634-01 for TC-FX410R.KC shows none in stock or available. -HQ COMMENTS: One piece of P/N 3-319-634-01 is being sent to you. | ||
| Sony | KV1311CR | NO AUDIO ON TV, REPLACED IC-881 | No audio in TV mode. Checked IC-881/Pin 2, audio signalpresent. But IC-881/Pin 1 no audio signal. | ||
| Sony | STRAV230 | LOW VOLUME AC HUM IN OUTPUT | Low volume AC hum in output. | ||
| Sony | XR740 | CONTINUOUS AUTO REVERSE | Unit would auto reverse continuously. | ||
| Sony | MDRA25 | NO PART NUMBER FOR DIVERGENCE CORD | MDR A25 is a repairable unit, however no part number fordivergence cord. -HQ COMMENTS: The cord is part of the headband assembly. It comes asone piece. | ||
| Sony | XR780 | PART NUMBER MISSING | Protector (P/N 3-323-287-01) not called out on prints. Also,many breaking. Suggest fingers be made stronger. -HQ COMMENTS: A service bulletin has just gone out regarding thisproblem. We will notify Tokyo of breakage. | ||
| Sony | CCDV8AFU | DISTORTED PB PICTURE DUE TO DRUM/CAPSTAN PROBLEM | This unit had a problem where the drum and capstan motorswould run uncontrollably for 4-5 sec then the unit would shut down andonly EJECT would work. I found Q508 open. This caused IC501 to get veryhot only in PLAY mode. | ||
| Sony | KV1210U | SUB FBT | This sub FBT has instructions for installation but they arein Japanese. I have a servicer that needs these instructions as soon aspossible. -HQ COMMENTS: We will publish Service Bulletin on this. | ||
| Sony | XR75 | MISSING PART NUMBERS | Need part numbers for spacers where they are located in 7Iin Supplement #1. -HQ COMMENTS: See Supplement No. 1 published in March 1984, spacers areitems #347 and #348 P/N 3-592-651-00 and 3-592-652-00. | ||
| Sony | XR780 | SERVICE MANUAL ERRATA | Service manual errata. S701, S702, S703 are incorrectlyidentified on page 41 of both manuals. S701 is tape direction switch.S702 is tape-in switch. S703 is tape-out switch. All are located on theMD board. -HQ COMMENTS: A service bulletin will be iss | ||
| Sony | KV1365 | UNIT DEAD, REPLACED T503 AND FUSE | Unit dead, F602 was opened due to T503 being shorted. |