Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SLHF450 | TAPE PLAYS BUT NO VIDEO | No video and R309 (VA-14 board) overheats, no 5V on Q64.Measured a short on Pin 2 of CN8. | ||
| Sony | CCDV8AFU | NO CAPSTAN PHASE LOCK | Noise bar at 5 sec rate. Observed RF envelope expand to maxand diminish. By substituting ATF servo with power supply could stabilizepicture. All signals at ATF servo/IC106 appeared OK, but replacementsolved problem. Hint: wait for RF envelope to dimi | ||
| Sony | KPR4110 | UNIT SHUTS DOWN, REPLACED R-217 (E BOARD) | The unit would begin to power up and then immediately shutdown. We discovered that the problem was premature HV shut down. It wasbeing caused by R-217 being the incorrect value. There was a 33Kinstalled. 20K provided correct bias and allowed normal o | ||
| Sony | AVU270 | NO LOW STATIONS | The unit operated correctly except that it was not possible totune in the low stations. Eg. FM/below 94MHZ, AM/below 1020KHZ and TV/below #5. | ||
| Sony | KV2665 | INTERMITTENT VERTICAL JITTER WITH MOVIE TAPE, REMOVE Q-854 | When playing back prerecorded movies with copyguard the tele-vision would have an intermittent vertical jitter. All other modes workedfine - off air, generator, etc. By examining the sync in the delayed modeon the scope we determined that the vert. syn | ||
| Sony | CCDV8AFU | VIDEO WAS GOOD BUT EVERYTHING WAS PINK | Video was good but everything was pink. Traced problem toME-1 board. Good signal TP703. No signal TP704. Signal OK Pin 48 butDC voltage 4.8V. Trace to leaky chip cap C711. | ||
| Sony | ITA600 | RADIO INTERFERENCE | Customer hears local radio stations over phone. Hears 980 AMand 610 AM at the same time. Worse when plugged into AC line. -HQ COMMENTS: The RF interference is more than likely AM. A choke coil(same as is used in SPP-300) will soon be available from K | ||
| Sony | EVS700U | STICKY DRUM ASSEMBLY | Drum does not start after unit is not used for several hours. | ||
| Sony | CCDV8AFU | NO POWER | No power, all voltages normal out of DR901, VDD normal toIC601. Found no clock at IC601. | ||
| Sony | CCDV8AFU | TAPE HESITATES | Intermittent tape hesitation during tape run record or PB.Momentary tape stoppage at random intervals progressing to emergency stopalthough normal immediately after reset, continue operation finallyobtaining complete failure of tape movement in all modes | ||
| Sony | CCDV8AFU | WON'T RECORD | Won't record, unable to enter any mode except eject, drum runfollowed by emergency stop. Found no RF SW pulse Pin 24 IC601/MC-4 board.No output Pin 7 IC501 on MC-4 board, incorrect DC level Pin 6 IC501. | ||
| Sony | CCDV8AFU | NO FUNCTION | No function. Power up normal. Found no motor power. | ||
| Sony | CCDV8AFU | FLICKER | Flickers during playback and record, intermittent shift tofour hour mode. Found high frequency signal and noise present on 5Vlines, variable with stress applied to DC-DC converter. | ||
| Sony | BMC660 | CASSETTE COMPARTMENT WON | Cassette compartment will not catch. | ||
| Sony | FD2A | NO RASTER, SHORTED ELECTROLYTICS C209, C215, C611 | No raster, no sound. Found one or more of the aboveelectrolytics shorted. |