Dicas Reparação
Modelo - Chassis STRVX550
Pesquisa: STRVX550 Enviar Dica Resolvida
Resultados 31
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRVX550 | DEAD - NO DISPLAY | No display. No clock signal at Pins 31 or 32 of IC301. Hold(Pin 34) of IC301 at 2.5V. | ||
| Sony | STRVX550 | INOPERATIVE REMOTE | Receiver will turn on with remote but no other functionswork. All previous modifications including reset, capacitor, surgesuppressors and ground repairs were done. Serial data is entering IC403at Pin 21, but no output. | ||
| Sony | STRVX550 | INTERMITTENT OUTPUT | Audio cuts off intermittently. SP relay kicks off. | ||
| Sony | STRVX550 | NO REMOTE FUNCTION | No remote control operation. Reset controller IC301, did notrepair problem. | ||
| 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 | STRVX550 | PROCESSOR LOST MEMORY | At approx. 30 day intervals, this IC would lock-up in itsprogram and require a manual resetting. This occurred even after itsreset and hold periods had been changed by 0.22mFd capacitors. | ||
| Sony | STRVX550 | MISSING P/N IN MANUAL | Many servicers ask for the part # of the capacitors used inthe Hi-Fi Service Bulletin #180. | ||
| Sony | STRVX550 | GROUND CONNECTION MODIFICATION | Tightening ground screen on the main chassis and displayboard does not always resolve the ground problem. The easiest thing todo is to install star washer. | ||
| Sony | STRVX550 | STATIC INDUCED ONTO TV SET | When the VX-550 was on and within about 10 feet of a TV (anybrand) static was induced in the picture and sound. We found the multi-vibrator which supplies power to the fluorescent tube filament to be thecause. | ||
| Sony | STRVX550 | MUSIC STOPS AND NOISE OCCURS | Unit would play on FM and intermittently go to noise. Displaywould remain unchanged and tune light stayed lit. I found taping on powersupply caused problem to come and go. Found the ground connection to bethe problem on that main board. Put in a star | ||
| Sony | STRVX550 | MISSING PART NUMBER IN MANUAL | No part number for FM tuner in S/M. FM tuner number isA-434-402-9A. | ||
| Sony | STRVX550 | GROUND LOOP PROBLEM | Intermittently set would shut off all displays, or would losepreset stations, or sound would be muted until any one button was touched. -HQ COMMENTS: Ground loops can be difficult to isolate. We would haveprobably done the same using braid wire (solder | ||
| Sony | STRVX550 | MISSING C654 | One channel appeared to be louder than the other. Looking atchannels on the scope showed left channel boost in treble when basscontrol was increased. Found that C654 was not installed at the factory. | ||
| Sony | STRVX550 | DEFECTIVE IC301 | Memory would not hold functions. Battery and power supplygood. | ||
| Sony | STRVX550 | TUNER NOT ALWAYS FUNCTION | Output would switch on and off. Tuner would not alwaysfunction. Display intermittent. |