Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2643R | UNDER SCANNED PICTURE, R533 VALUE CHANGED, REPLACED | Picture under scanned horizontally and vertically. Foundresistor R533 changed value, should read 1.2 ohms, read 14 ohms. | ||
| Sony | KV2602 | VERTICAL FOLDOVER, REPLACED IC502 | Vertical foldover at bottom. All voltages around IC501 andIC502 checked good except Pin 5 of IC502 which was very low, waveformswere distorted. | ||
| Sony | KV2145R | NO VIDEO/SOUND, REPLACED PRESCALER | No video - no sound. | ||
| Sony | KV2145R | DARK PICTURE, REPLACED BRT CONTROL | Unit loses brightness (goes black) intermittently. VoltageOK, TP49 goes low whenever problem occurred. Found brightness controlshorting to its case. | ||
| Sony | KV1946R | DEAD, FBT | Flyback arc over. | ||
| Sony | KV1946R | SOUND NOISE, REPLACE T206 | This unit had a background hiss in the sound. AdjustingT206 did no good. Found T206 had the incorrect transformer installed.P/N 1-403-360-13 was marked on the outside. | ||
| Sony | KV1913 | SHUT DOWN | At turn on, set would shut down after a few minutes to a fewhours. | ||
| Sony | KV1913 | NO SOUND | Sound goes on and off, cooling C226 would confirm problem. | ||
| Sony | KV1746R | SHUT DOWN, INSTALLED C547 AS PER T/N | This unit would intermittently go into HV shutdown. | ||
| Sony | KV2644R | INCORRECT TUNING, REPLACED IC2002 | Set would stay in address position A at all times. I foundwhen I turned channel set switch on and programmed set, it would work OK.But if I shut the set off, and turned it back on again, it would come onin position A and could not be addressed again. | ||
| Sony | KV2643R | NO OPERATION, REPLACED C539, C805 AND R812 | Set inoperative. Found R812 open and C805 leaky. Replacedthem and picture displayed vertical bar (approx. 5 inches) on left side,R812 was running warm. Found C539 open. | ||
| Sony | KV1945RS | POOR REMOTE OPERATION, REPLACED IC1, CX-786 IN COMMANDER | Poor sensitivity with remote approx. 6 feet. | ||
| Sony | KV1945RS | SHUT DOWN, SELECTED R563 | This unit intermittently shuts off, sometimes twice a week,sometimes once. Voltage on Pin 12 was 5.3V making it too near thethreshold level of 5.6V, changing R563 to satisfy the procedure in manualresults in a 15K resistor which was half of the original | ||
| Sony | KV1945R | NO COLOR, REPLACED IC501 | No color. Found no pulse at Pin 20 of IC301. Traced theproblem to Pin 22 of IC501 where I found no sync out. | ||
| Sony | KV1217 | DEAD, REPLACED Q602 | No sound, no picture, channel indicator stays in one position,tuning and band indicators are dim. Found regulator transistor Q602leaky, and both audio output transistors Q205 and Q206 shorted also R232open. |