Dicas Reparação
Modelo - Chassis STRVX4
Pesquisa: STRVX4 Enviar Dica Resolvida
Resultados 8
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRVX450 | SCRAMBLED DISPLAY THEN BLANKS OUT AND MUTES AFTER 10 SEC | IC301 crashes. Can be reset manually by grounding Pin 33.You could preset a station (if you are quick), then the proper displayfreq. would show for a short while. One by one the segments of thedisplay would grow dim quickly, then become scrambled. Aft | ||
| Sony | STRVX4 | MISSING PART NUMBER - C803 | I need the part numbers for the filter caps designated C803,C804 in the service manual. See Page 35 Section Q4. They filter thebridge diodes output. I have a unit S/N 860295 which had both capacitorsexhibit leakage on the main power board. Sample inc | ||
| Sony | STRVX4 | BAD C854 CAPACITOR | The tuner control acted erratically. Sometimes the displaywould show 77MHz/FM at turn on. At other times the memory scan would beerratic. We found the reset pulse at Pin 7/IC401 to be insufficient.The trouble was traced back to C854 which had dried ou | ||
| Sony | STRVX4 | THERMALLY INTERMITTENT IC201 | The AM or FM would periodically become distorted and sometimesmute. | ||
| Sony | STRVX4 | OPEN C854 | There was no reset pulse for the microprocessor. Therefore,the unit acted very strange. For example, memory scan does not go up tomemory 8. | ||
| Sony | STRVX4 | DEFECTIVE C803 | The customer complained of low volume and distortion. Wetraced the problem to low B+, we found C803/C804 to have changed in valueand leaking the paste out into the chassis. | ||
| Sony | STRVX4 | DEFECTIVE IC404 | We were unable to vary VC voltage to the tuner on this unit.The display worked normally. We found that there was no output from 11 ofthe PLL IC404. | ||
| Sony | STRVX4 | REPLACEMENT TRANSISTORS FAIL | The 2SC-1826 or 2SC-1986 is used as a regulator in the abovelisted models. When these parts fail and the part 8-729-398-62 is orderedthe part is subbed to a 2SC-2768. -HQ COMMENTS: 2SC1986 (8-729-398-62) does not sub into a 2SC2768 atKCP. However the |