Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2647R | NO COLOR, REPLACE IC501 | No color. Very low burst. | ||
| Sony | KV2645RS | NO UHF, REPLACED PRESCALER BT-981 | No UHF, VHF OK. All voltages and pulses present exceptTP-59. | ||
| Sony | KV1943R | INTERMITTENT SOUND, REPLACED C226 | Highly intermittent audio. Slight popping noise beforegoing out. | ||
| Sony | KV1923 | TUNING UP/DOWN WOULD NOT LOCK | In the program mode tuning up/down set will not lock onchannel. | ||
| Sony | KV1914 | NO SOUND | No sound. Voltage at Pin 21 of IC201 was low, should havebeen 5.8 VDC, was only 4.0 VDC. | ||
| Sony | KV1543R | INTERMITTENT COLOR FADE, REPLACED C308 | Intermittent color fading. This problem was highly inter-mittent, sometimes taking weeks to manifest itself. The color would fadeout completely. Chroma input to IC301 Pin 13 would not change at allduring fade outs. DC level was varying slightly, betw | ||
| Sony | KV1515 | NO VHF CHANNEL | Low VHF channels cannot be received. Found D501, D502shorted. | ||
| Sony | KV1221R | NO REMOTE CONTROL FUNCTION, REPLACED C007 | There were no remote control functions. The volume up/downfunctions would shut set on and off. Manual input of IC (remote control)Pin 1 always had a noise pulse and frequency at this point was incorrect.This noise pulse inhibited any input data from re | ||
| Sony | KP7220 | NO PICTURE, CONNECTOR DA-5 INTERMITTENT | Connector DA-5 gets loose and causes picture tubes to blankout, can also cause a line on green tube which burns to mark in tube. | ||
| Sony | KP5040 | POOR FOCUS, REPLACED HV BLOCK | Unable to get a good focus. Problem traced to high voltageblock. | ||
| Sony | KP5040 | DEAD, REPLACED CX171, Q5521, Q5522 | Set would not turn on. Servicer found CX171 defective whichis believed to have caused Q5521 and Q5522 to short, fuse found defective. | ||
| Sony | KV2145R | SET LOCKS ON CH 88, REPLACED CH INDICATOR ND3101 | Set was locked onto channel 88, unable to clear or change.Found pulse out of IC001 on MF board loaded down. Traced problem tochannel indicator display ND3101 on TA board. Pin 3 on display isshorting to something inside display loading down Pin 40 on IC | ||
| Sony | KV2141R | NO PICTURE, LEAKY D511 ZENER | Unit completely out of horizontal frequency. At Pin 8 ofIC501 the DC voltage reads 4V instead of 10V. Trouble traced back toleaky D511 (RD15E). | ||
| 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 | KV1921 | SHUT DOWN | Unit shuts dowm erratically. This problem confused theservicer because the original problem was a shorted damper. When AC wasapplied, the unit ran fine up to about 90V AC in then suddenly guit.By using light bulb technique we located Q510 breaking down |