Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18938
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1543R | INTERMITTENT REMOTE OPERATION, REPLACED C005 | Remote commander operative only about 10% of time, mostfunctions completely inoperative. With scope probe at TP 52 M-2 boardabout 5Vpp random noise present and remote control signal distortedwhen actuated. | ||
| Sony | KP5000 | PICTURE DISTORTION, LOOSE SCREW ON HOR DRIVE TRANS. Q5104 | Intermittent horizontal sweep problem causes sweep to collapseand burn a vertical line in the three picture tubes. | ||
| Sony | KV2648R | SNOW PICTURE, REPLACED PRESCALER | Picture would go to snow after about 5 minutes after turn-on.Set was OK when cold. 12 volt line would drop to 7.5V and voltage atprescaler would drop to 1.5V. | ||
| Sony | KV2648R | HIGH PITCH NOISE | The unit makes a high pitch sound like a flyback with loosecore. Replacing POT transformer did help a little but still audible.Wedging the transformer almost reduce noise but awkward solution. | ||
| Sony | KV2647R | TUNING DRIFT, RESOLDER R053 | Upon changing channels a good video will come on for a momentbut will drift off to barely viewable negative picture. | ||
| Sony | KV2647R | NO CONTROL OF BRIGHTNESS, BROKEN FOIL ON CRT BOARD | No control of brightness. Picture would start at normallevel and slowly get dimmer with retrace lines, then flash to normalpicture level again. No G2 voltage on Pin 12 of CRT board. | ||
| Sony | KV2647R | PICTURE DISTORTION, REPLACE C549, C550 AND C554 | Slight PIE CRUSTING and marginal horizontal sync. | ||
| Sony | KV2645R | NO REMOTE OPERATION, REPAIRED CRACK ON N BOARD | Unable to control operation with remote. Found hairlinebreak on N board. | ||
| 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. |