Dicas Reparação
Modelo - Chassis STRD790
Pesquisa: STRD790 Enviar Dica Resolvida
Resultados 21
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRD790 | DISPLAY PROBLEMS - REPLACED CONNECTOR CN101 | Eventually found heat sink compound on CNS101. The femaleconnector that accepts ribbon cable from display pcb. Pins 9/10/11/12were involved. Tried cleaning, problem still existed. Replacedconnector. These pins carry key in PL data, clock, latch. Mic | ||
| Sony | STRD790 | NO TUNING FUNCTION - REPLACED C89 | Not tuning in stations. Found C89 open and leakingelectrolyte. | ||
| Sony | STRD790 | GOES INTO PROTECT - IC202 DEFECTIVE | Unit goes into protect on power up. | ||
| Sony | STRD790 | MUTING LIGHT ALWAYS ON - REPLACED Q211 | Q211 defective, muting lighting up all the time. | ||
| Sony | STRD790 | UNIT DEAD. WOULD NOT POWER UP - REPLACED Q755 AND Q756 | Unit would not power up. Both Q756 and 755 wereshorted. | ||
| Sony | STRD790 | DEAD - RESOLDERED SURROUND OUTPUTS AND REPL FUSE. | Fuse blown, outputs ok. Surround output IC had ring cracks. | ||
| Sony | STRD790 | NO POWER, UNIT DEAD -REPLACED D956 | Unit dead, won't turn on. I found voltage at IC202-53 (STOP)at 4V, with lots of AC noise. | ||
| Sony | STRD790 | FOUND OUTPUTS SHORTED - REPLACED OUTPUTS | Found outputs shorted. | ||
| Sony | STRD790 | PROTECTION MODE - IC601, IC621 DEFECTIVE | Unit turns on has display. After 5 seconds unit goes intoprotection mode. I found IC621 and IC601 defective. | ||
| Sony | STRD790 | DISPLAY WON'T LIGHT UP - REPLACED R975 AND IC202 | R975 overdissipated, minor damage to board/replacedR975, display shows bad segment, and everything lights up at once. | ||
| Sony | STRD790 | MANUFACTURING DEFECT - WIRING REVERSED | No symptom noted, however this could cause buzzing in rightchannel. During troubleshooting of another problem, I found ground & rightsignal wires were reversed. The shield was carrying the signal and thered wire was actually ground! I had to swap red a | ||
| Sony | STRD790 | NO AUDIO - CNJ903 NOT CONNECTED | Further troubleshooting found that regulators IC971, IC972,and IC973 had no voltage. A visual inspection found that regulator boardconnector CNP903 loose or misconnected from main board connector CNJ903. | ||
| Sony | STRD790 | UNIT IN PROTECT - DOLBY BD AND REGULATOR BD UNPLUGGED | Unit in protection. 1.03V on outputs of front and rear amps. | ||
| Sony | STRD790 | NO POWER - F902, Q705 & Q706 REPLACED FOR SECOND TIME | I originally fixed the unit by replacing F902, Q705, Q706(W15H0521) but the unit came back with the same problem. I found thecustomer hooked two speakers in parallel into the speaker terminal usingfive speakers (not known speaker impedance). Refer to F | ||
| Sony | STRD790 | MISSING PARTS ON SURROUND TUNER BOARD - IC308, IC309, MORE | A number of units have been received which are missing partson the Surround Tuner Board and have jumpers installed in place of theparts. Some units have a different version PC board (Some have1-644-100-11 version board and some have 1-644-100-12 version |