Dicas Reparação
Modelo - Chassis KV1957R
Pesquisa: KV1957R Enviar Dica Resolvida
Resultados 9
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1957R | NO COLOR, REPLACED IC-301, REPLACE IC-301 | No color and no clock. IC holding X-301 low. | ||
| Sony | KV1957R | VERTICAL RETRACE LINES ON TOP OF PICTURE, C-515 OPEN | Lines on top of picture fold over. -HQ COMMENTS: C-515 was open. | ||
| Sony | KV1957R | INTERMITTENT DECREASE IN BRIGHTNESS LEVEL, LEAKY C-307 | Intermittent decrease in brightness level, looked almost likecomplete loss of (Y) in formation. At time of trouble - symptom, the vol-tage on pin 4, IC-301 dropped to about 2 VDC. Also, voltages at pins 32,33, 34 dropped to .8 VDC. Apparently, DC leve | ||
| Sony | KV1957R | UNABLE TO TUNE IN VIDEO, LEAKY CP003 | Unable to tune in VC voltage, sometimes set would lock upon indicator NL003, but video would change on some of the channels thatVC was tuneable. | ||
| Sony | KV1957R | HORIZ. OUTPUT TRANSISTOR WOULD GET VERY HOT, R522 REPLACED | Horizontal output transistor would get very hot and eventuallyfail. Inspection revealed that R522 had increased in value. | ||
| Sony | KV1957R | PICTURE OVERLOAD/INTERFERENCE, INSTALL A CAPACITOR | The set would intermittently have an interference in thepicture and sound which would sometimes overload it. The problem wascaused by horiz. noise that was appearing on the U input to the band-switch IC/IC102 Pin 3. The noise was not originating from a | ||
| Sony | KV1957R | SET WILL NOT TURN ON WITH REMOTE OR MANUALLY, REPLACE IC1W | Set could not be turned on by remote or manual button.Closing power relay would allow set to work OK. I saw no signal at outputof remote head amp and pressing power button would not operate set either.Voltage checks revealed 32V line to be about 2V low | ||
| Sony | KV1957R | NO REMOTE OR MANUAL OPERATION, SOLDER BLOB REMOVED | Set would turn on immediately when plugged into AC. No func-tion buttons would operate and the set could not be turned off unless itwas unplugged. | ||
| Sony | KV1957R | INTERMITTENT SHUT DOWN, REPLACE C549 | Intermittent shutdown. |