Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2648R | NO PICTURE, REPLACED H OUT TRANSISTOR | Receiver had no B+ voltages. All voltages and waveforms atprimary side of T602, F board, were all right. Resistance check of 135Vlines was 200 ohms to ground. Horizontal output transistor was shorted. | ||
| Sony | KV2647R | NO VERTICAL SYNC DURING CHANGING CH., WRONG VALUE R580 | Vertical sync loss when changing channels, OK when scenefades out before a commercial. | ||
| Sony | KV2645RS | LOW BRIGHTNESS, REPLACED R751 | Low brightness, like weak CRT. | ||
| Sony | KV2645RS | CHANNEL WOULD NOT LOCK, ADJ T205 AFT COIL | Would not lock on to cable channel #14. Cable companyrunning mid-band channels 1.2MHz to 1.9MHz below accepted centerfrequency. | ||
| Sony | KV2645RS | INCORRECT PICTURE POSITION, ADD CAP | Unable to center picture horizontal. Picture off to the leftby 1/2 inch with TAP plug into RIGHT position. Servicer changed yoke,diodes D519, D518 and resistors around center area. I changed severalcapacitors. Customer has had this problem from the f | ||
| Sony | KV1946R | PICTURE DISTORTION, R605 OPEN | Insufficient width and no color, B+ 110V not regulating,R605 open. | ||
| Sony | KV1945RS | AUDIO HUM, REPLACED IC102 | Hum in sound, follows volume up/down. Scoped output ofIC102, looks like 60Hz hum. | ||
| Sony | KV1515 | INCORRECT TUNING OPERATION | Could tune channels 2 to 9 only. VC on this unit cannot gobeyond 15V and band selector switch have no effect, station is tunedregardless of switch position. This problem was caused by a leakyS075 causing a high (3.2V) on Q104. | ||
| Sony | KV1515 | PICTURE DISTORTION | Intermittent vertical collapse, found C508 leaky. | ||
| Sony | KV1515 | NO LOW VHF | This unit could tune only H. VHF and UHF band. Found Q103collector to emitter leaky. | ||
| Sony | KV1515 | INCORRECT TUNING OPERATION | Unable to tune position #1 to the correct channel on any ofthe 3 band selections. All other positions function normally. Foundthat moving band switch at position 13 while in position 1 viewing modewould cause deteriorating effect on position 1 tuning, | ||
| Sony | KV1515 | NO LOW VHF | Set would not tune above channel 2, traced to leaky VC drivertransistor. | ||
| Sony | KV1217 | VERTICAL FOLDOVER, REPLACED C524 | Vertical foldover with blanking spot on right upper corner andjittery picture. Found C524 installed backwards during manufacturing. | ||
| Sony | KV1217 | NO UHF, REPLACED TUNER | No UHF. | ||
| Sony | KV1214 | PICTURE INTERFERENCE | Interference in shape of two vertical lines on left side ofscreen. Waveform at input to blanker stage was distorted. |