Dicas Reparação
Modelo - Chassis STRD311
Pesquisa: STRD311 Enviar Dica Resolvida
Resultados 8
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRD311 | FAILURE OF RIGHT CHANNELS OUTPUTS - REPLACED C756 | In a prior field problem report, I reported that the rightchannel was going out. We found Q755, Q762 and Q763 shorted. This unitis back for the 3rd time. Monitoring the voltage across R776, we foundthat after a few minutes it would start to rise. Wh | ||
| Sony | STRD311 | OUTPUTS FAIL - REPLACE PARTS AND HARDWIRE GROUND TO CHASSIS | Outputs fail. | ||
| Sony | STRD311 | NO DISPLAY OR OUTPUT - TRANSFORMER OPEN | Unit has no display, has power relay kick in, but primarytransformer open no power to unit at this point (open T901). | ||
| Sony | STRD311 | NO AUDIO OUTPUT - D955 SHORTED | No audio. No -12v. | ||
| Sony | STRD311 | PROTECT ON - RECONNECT CNP404, CNP103 | The unit is in protect. A visual inspection reveals that Join-1 board CNP404 is not connected with CNP103 on volume board. | ||
| Sony | STRD311 | LEFT CH OUTPUT CKT APPEARS TO FAIL MORE OFTEN THAN RIGHT | My experience indicates that the left channel outputs onthese units fail far more often than the right. The only significantdifference I see is in the overload circuit, specifically Q714, which iswired differently for the left channel than the right. | ||
| Sony | STRD311 | WRONG Q712 IN UNIT - REPLACED WITH CORRECT PART | Customer complained of unit never working correctly. Rightchannel looked OK, but, the NPN, Q712, in the left channel evidenced casedamage. Although most of the numbers were obscured by the damage, wecould see that it was a 2SC-----, not a 2SD2439, as i | ||
| Sony | STRD311 | Q706/756 (2SB2012) LEGS TOO SHORT | The legs have to be cut on the old transistors and soldered tothe new transistors to have them reach the board. -HQ COMMENTS: KCP fax reply 04/14/94 According to KCP in checkingstock, the transistors lead length is 14mm from bottom of transistor(body) t |