Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1948R | VERTICAL ROLLING, LEAKY D513 | Vertical rolling and little foldover in picture, verticalcontrol in the front panel has little effect. | ||
| Sony | KV1947R | FADED PICTURE, C519 OPEN | Faded picture and picture control has no effect. Horizontalripple on Q342 and Pin 4 of IC341, it effects all pins of dynamic picturechip. Found C519 open. | ||
| Sony | KV1924 | BAD TUBE | This unit had a weak tube. Also R555 was open by shortedC548. | ||
| Sony | KV1207 | SNOWY PICTURE | This was the 3rd time in for snowy picture. Each time foundfailure of transistor Q101. | ||
| Sony | VTX1000R | VIDEO MUTE | KX-1901 plays fine with external video but when hooked tothe VTX-1000 it goes into video mute. We found IC005/IF chip in theVTX-1000 to be defective. | ||
| Sony | VTX1000R | NO CHANNEL CHANGE | Would not change channels after approx. 30 minutes playingtime. | ||
| Sony | KX2501A | VERTICAL BARS IN THE PICTURE, REPLACED C1527 | Light vertical bars in the picture. | ||
| Sony | KX2501A | SHUT DOWN, REPLACED C657 AND Q652 | Transistor Q552 shorts out as soon as the voltage reaches70V on GA board. | ||
| Sony | KX2501 | PINCUSHION DISTORTION, CIRCUIT CHANGE | Pincushion distortion. | ||
| Sony | KX2501 | NO VIDEO OUT, REPLACED Q1343 | No video out. Traced problem to BD board. 12VDC regulatorleaky. Voltage reading was 10VDC, should be 12VDC. This caused incorrectbias to be applied to RGB drive transistor via BD cutting off the drivetransistors. | ||
| Sony | KX1901 | SHORTED CRT | The picture tube shorted causing a chain reaction ofdestruction. The HVR block was found defective. Also found were shortedhoriz, output transistor, shorted reguator transistor, and a bad flyback. | ||
| Sony | KV9200 | 130V WOULD NOT REGULATE | 130V would not regulate. All components in power supplychecked good. | ||
| Sony | KV3000R | MECHANICAL INCORRECT OPERATION | The doors would operate only intermittently on this unit.I found that motors for the left and right sides had come loose. | ||
| Sony | KV2654R | COLOR ON B/W PICTURE, ADJ CV-301 | Color confetti on B/W telecast. | ||
| Sony | KV2649R | LOSE COLOR, REPLACE X001 | When unit was turned off/on color would lock in. Turn off/onagain and you would lose color and the channels would not change. |