Dicas Reparação
Modelo - Chassis KV1207
Pesquisa: KV1207 Enviar Dica Resolvida
Resultados 9
Pedir dica reparação
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1207 | NO PICTURE HAS SOUND, REPLACED IC201 | No video, sound ok. | ||
| Sony | KV1207 | SNOWY PICTURE | This was the 3rd time in for snowy picture. Each time foundfailure of transistor Q101. | ||
| Sony | KV1207 | JAIL BARS ON THE SCREEN | Very dark jail bar pattern on screen. Bars were so darkthat they blanked picture where they were. Found horizontal pulses onthe +12V line at Pin 10 of IC301, and discovered leaky C323. | ||
| Sony | KV1207 | NO PICTURE, SEE SB0200R | Found D064 leaky, this was replaced and 15 days later unitcame back and this time D063 was found to be leaky. Ten days later unitcame back with D063 leaky again. Each time the diode is replaced. | ||
| Sony | KV1207 | DEAD | 12V line was being grounded by R221 lead touching ground. | ||
| Sony | KV1207 | PICTURE NOISE | Vertical bars across screen, excess ringing off 190V line offlyback. C540 was missing from circuit. | ||
| Sony | KV1207 | NO LOW VHF | No low VHF channels, voltage on Q102 remains high regardlessof band switch position. Found D059 diode on M4 board leaky. | ||
| Sony | KV1207 | POOR VERTICAL | VC amp leaky. Repaired by replacement Q101, 2SC1815 withreplacement 2SC1364. Unit was OK for 6 weeks, then Q101 failed again insame way. Replaced and checked circuit. Found no reason for failure.Perhaps static problem. Enclosed you will find the ori | ||
| Sony | KV1207 | NO CHANNEL LOOK | Set changes channel by itself usually ending on Ch. 13position. |