Dicas Reparação
Modelo - Chassis XR780
Pesquisa: XR780 Enviar Dica Resolvida
Resultados 9
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | XR780 | NO AM OR FM OPERATION | No AM or FM. DC voltage at emitter of Q225 was 7.4VDC insteadof 8.8VDC. Although the regulator transistor (Q225) did not check open orshorted, it would not function in the set. | ||
| Sony | XR780 | AM/FM TUNER LOCK-UP | When advancing tuning manually, tuner would advance approx.2/3 of the way up the band normally, after which point the display wouldcontinue to advance, but actual station tuning would not. In scan mode,tuner would advance 2/3 of the way up the band, aft | ||
| Sony | XR780 | PART NO FOR SPRING 428 | Need P/N for spring #428, other part has #428 also, needspring only. -HQ COMMENTS: The P/N is 3-596-509-01 which is Ref. No. 427. | ||
| 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 | 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 | XR780 | SERVICE MANUAL ERRORS IN LABELLING OF SOLENOIDS | S/M errors in labelling of solenoids. PM701 on Pg 41 ofXR-740/747R/780/787R should be PM703 (direction change solenoid). Thiswould agree with their schematics and mounting diagrams. PM901 on Pg 34of XR-80 and Pg 38 of XR-66 should be PM903 (direction) | ||
| Sony | XR780 | TAPE JAMS | Tape jams. The gears (A, B, Assy RVS) are stripping. Eitherthey strip causing tape to jam or tape jams causing gears to strip. | ||
| Sony | XR780 | NO TAPE OUTPUT | Audio output of tape section ceased after one month.Infrequent intermittent operation after that. | ||
| Sony | XR780 | DEAD OUT OF THE BOX | Unit turns on and lights up but is muted. |