Dicas Reparação
Modelo - Chassis STRAV910
Pesquisa: STRAV910 Enviar Dica Resolvida
Resultados 23
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRAV910 | DC AT THE OUTPUT OF Q716/715 IS -36V - REPL R706 | Output one channel has DC volt -36v. Found resistor R706change value from 33 to 160k. Value of R706 is 33. | ||
| Sony | STRAV910 | NO OUTPUT WHEN CHANGING SURROUND MODE - RESOLDERED IC404 | When you change the surround mode to simulated or Dolby audiocompletely, pin 9 of IC404 goes high when you make that change in mode andaudio cust out pin 9 should be low at this time. -SOLUTION :Resolder IC404 will correct problem. -HQ COMMENTS: Pin 9 | ||
| Sony | STRAV910 | DEAD - REPLACED POWER TRANSFORMER | No standby found primary open on transformer. | ||
| Sony | STRAV910 | POWER WOULD NOT SHUT OFF - Q852 LEAKY P/N 8-729-119-78 | After power button would be pushed to turn off unit, displaywould blank out but unit would remain on. Power relay line would remainat 4V. | ||
| Sony | STRAV910 | BOTTOM RIGHT SIDE OF DISPLAY REMAINS LIT | Has hum. Numbers stay lit on bottom right side of display.The presets A1 or A2, the number will flash. This is only noticeable atnight or when it is fairly dark. Found D-803 was installed backwards. | ||
| Sony | STRAV910 | LEFT CHANNEL OUT | No left channel. Intermittently would activate protectioncircuit while checking voltages around the circuit. | ||
| Sony | STRAV910 | GOES INTO PROTECT MODE | Unit goes into protection mode shut down. | ||
| Sony | STRAV910 | LOW LEVEL HUM | Low level hum. Tightening the screws which attach the PCboard to the chassis seem to clear the problem. I have received manycomplaints relating to this. | ||
| Sony | STRAV910 | VOLUME WILL NOT REDUCE TO ZERO | Customer complained to servicer that volume could not bereduced to zero. Servicer found that grounding wiper on volume controlkilled sound from speakers and in the lowest volume position the threesections of the pots measured 10-20 Ohms not zero. Repla | ||
| Sony | STRAV910 | ERROR IN SCHEMATIC AND PARTS LIST FOR Q-721 | The schematic and the parts list show this transistor as aPNP, 2SA1841. In reality this is a NPN, 2SC-1841 in the set. Please explain is this an error and should a correction be made? -HQ COMMENTS: The service manual has a misprint. If you reference | ||
| Sony | STRAV910 | NO SOUND FROM SURROUND OUTPUT | No sound from surround speakers. | ||
| Sony | STRAV910 | HI-FI SERVICE BULLETIN 118 NEEDS CLARIFICATION | Hi-Fi service bulletin No. 118 needs clarification. Themeasurement conditions need to be more clearly defined. We do need ameans of checking relative surround sound levels. -HQ COMMENTS: The signal to be fed into the CD input would come from anaudio s | ||
| Sony | STRAV910 | MISSING PART NUMBER FOR ESCUTCHEON ASSEMBLY | The STR-AV910/AV1010 service manual identifies the front panelassembly and escutcheon assembly only for the AV1010. The computer liststhe AV910 front panel as X-4906-822-1. We still need the part number forthe AV910 escutcheon assembly, Ref. No. 7 on p | ||
| Sony | STRAV910 | MISSING ADJUSTMENT PROCEDURES FOR AMP BIAS CURRENT | The service manual has no adjustment procedures. I referredto Supp. #1 for STRAV900 and it says 0.01mV within 30 seconds after poweris turned on, equalling 100uA bias current. The STR-AV920/AV1020 S/M says4mV within 30 seconds after the power is turned | ||
| Sony | STRAV910 | NO POWER - UNIT DOES NOT FUNCTION BUT SUPPLY IS OK | Unit is completely dead, but all power supplies are ok. Foundcold solder connection on D-492 which is the hold line for the micro. Ifhold line does not have +5V, micros will not come up. This is the secondunit with this same cold solder joint I have s |