| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2647R | GREEN RASTER WITH RETRACE LINES, REPLACE IC-501 | Green raster and retrace. | ||
| Sony | KV1954R | LOOKS LIKE CRT FAILED, SHORTED C530 AND OPEN R538 | This set appeared as though the tube was weak. C530 wasshorted and R538 was open. | ||
| Sony | KV1953RX | NO FUNCTIONS, REPLACE Q2002 | No ch. display light. No audio. No front panel controls.IC2001 (CX7931A) on M brd was receiving the info. on Pins 3/4 from IC001on the MU brd. However, output back to Pin 5 of IC2001 was not occurring.Pin 12 of IC2001 was reading 6.4V instead of 12V. | ||
| Sony | KV1952RX | NO FUNCTIONS, REPLACE X2001 | No remote or manual functions. Channel indicator lamps didnot come on. This is the 2nd one I have found. I have also had 3servicers that have had the same problem. | ||
| 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. |