Dicas Reparação
Modelo - Chassis KV4000
Pesquisa: KV4000 Enviar Dica Resolvida
Resultados 5
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV4000 | NO BAND SELECT, FAULTY BAND SELECT SW S901 | No band select. The unit stays in the low band mode eventhough a flicker can be seen on the screen and a click in the audiowhen the band select button is depressed, band switching does not occur. | ||
| Sony | KV4000 | INTERMITTENT VHF TUNING | The VHF high channels could not be selected intermittently.We found switch, S-901, to have developed a resistance of about 400 OHMS.This condition did not allow a complete (Low) state in the band-selectflip-flop, causing set to skip to UHF from VHF low. | ||
| Sony | KV4000 | INTERMITTENT BAND SWITCH | The unit would intermittently not go into VHF high. We foundIC102/band switch to be the cause. | ||
| Sony | KV4000 | TUNING WOULD NOT LOCK | Will not lock on station when cold, after unit warms up willwork properly. Found waveform at Pin 8 of IC134 incorrect. | ||
| Sony | KV4000 | NO TUNING ON VHF LOW | No automatic nor manual tuning on VHF low, VHF high andUHF band. Found no voltages at VC terminal of tuner - resistancemeasurement showed short to ground - tracing back found short at M1 plugon M board - Pin 8 shorted to Pin 9. |