Dicas Reparação
Modelo - Chassis KV1945RS
Pesquisa: KV1945RS Enviar Dica Resolvida
Resultados 18
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1945RS | SOUND DISTORTION, REPLACED LEAKY C116 | Intermittent, uncontrollable sound. Remote inoperative.Indicator light on at all times. All manual functions worked fine exceptpix and sound. | ||
| Sony | KV1945RS | NO PICTURE, REPLACED IC006 | Unit fails to tune or show any numeric display on fluorescenttube - just snow on screen. Servicer replaced microprocessor. Lines forreset constantly high, IC006 bad - actually labelled IC004 on that model. | ||
| Sony | KV1945RS | SHUT DOWN, REPLACED CX-557S AND ADJ R563 | Set would work OK for hours then shut down. | ||
| Sony | KV1945RS | DEAD, D603G | Set will not turn on. | ||
| Sony | KV1945RS | DEAD, WIRE SHORT TO GROUND | Dead. Talking to customer, we found that it was intermittent.Finally the set failed to operate and it acted like high voltage shutdown problems becuase you could hear the high voltage come up and then godown. The key point here is that there were NO CH | ||
| Sony | KV1945RS | NO PICTURE, REPLACED Q004 | This unit intermittently looses VC voltage. We found Q004thermally intermittent. | ||
| Sony | KV1945RS | NO LAST CHANNEL MEMORY, PARTS TOUCHING | Unit came into servicer with complaint of intermittent nolast channel memory, volume level and brightness level. Servicer checkedall voltages. They were OK. He replaced IC001 thru IC006 but unit stillhad the problem. | ||
| Sony | KV1945RS | NO COLOR, REPLACED BPT, T301 | No color. | ||
| Sony | KV1945RS | NO UHF Q008 SHORTED | Would not receive UHF channels. | ||
| Sony | KV1945RS | INCORRECT TUNING, REPLACED X003 | No channel indicator (blank), no tuning of signal. Voltageson IC001 and IC002 were all wrong. Servicer had changed both chips andchecked the clock freq. of IC001 CL1 with a counter, 400kHz. When clockwas finally checked with a scope PP V was only 0.5V | ||
| Sony | KV1945RS | INTERMITTENT SOUND, REPLACED IC202 | Unit had very intermittent sound. | ||
| Sony | KV1945RS | PICTURE DISTORTION, REPLACED IC501, CX-557 | About the top 10 scan lines were stretch, very hard to detectbut customer complained. Vertical output waveform could see ringing,apparently leakage in the IC from horizontal. | ||
| Sony | KV1945RS | SHUT DOWN, SOLDER SPLASH | Immediate shut down after turn on - less than 1/4 second.Dealer suspected shut down circuit or power supply but could not evenpower on oscillator. All sweep voltages checked with meter showed 0 ohmsat 15V line. 15V line on MD board shorted to ground. | ||
| Sony | KV1945RS | AUDIO HUM, REPLACED IC102 | Hum in sound, follows volume up/down. Scoped output ofIC102, looks like 60Hz hum. | ||
| Sony | KV1945RS | PICTURE DISTORTION, REPLACED C544 | Severe pincushion problem, pin control has no control. Baseof Q503 was negative instead of 2V. Found signal on base has a lot ofspikes, which could come only from one point, the flyback. C544 was opencausing no filtering. |