| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27V55 | NEW "H" BOARD CONNECTOR CN155 DIFFERENT | Ordered a replacement H Board. Original boardconnector CN155 had 8 pins new one has 9 pins. -HQ COMMENTS: The original board is not available. The H boardfor model KV-27V10 uses the same H Board with the addition of theLuminance responder circuit. R | ||
| Sony | KV27TW78 | NEW "H" BOARD CONNECTOR CN155 DIFFERENT | Ordered a replacement H Board. Original boardconnector CN155 had 8 pins new one has 9 pins. -HQ COMMENTS: The original board is not available. The H boardfor model KV-27V10 uses the same H Board with the addition of theLuminance responder circuit. R | ||
| Sony | KV27TW77 | NEW "H" BOARD CONNECTOR CN155 DIFFERENT | Ordered a replacement H Board. Original boardconnector CN155 had 8 pins new one has 9 pins. -HQ COMMENTS: The original board is not available. The H boardfor model KV-27V10 uses the same H Board with the addition of theLuminance responder circuit. R | ||
| Sony | KV27TS31 | DISTORTED AUDIO MM201 MPX DECODER | Whistle and other distortions in audio. Found .47mfd 50velect. capacitor in mm201 audio processor module on A board open, thiscap is rated for 85 degress temp. There is no ref number for any of thesecapacitors on module. | ||
| Sony | KV27TS27 | SNOWY PICTURE, REPLACED RF CONNECTOR T99854851 | Rf connector input terminal diameter being too big. Antennaor cable wire has loose jib. | ||
| Sony | KV27SXR10 | BRIGHTNESS FLUCTUATION,REPLACED CONNECTOR WIRE ASS'Y A16-C3 | When the connector A16-C3 was wiggled at the A16 end,brightness would change. Reversing the cable (6 pin) showed no problem atthe C3 end but confirmed the problem was with the cable. | ||
| Sony | KV2786R | LOSS VERTICAL DEFLECTION, REPLACED TUNER AND R540 | Unit displayed a horizontal line at the center of thepicture.(When G2 was turned up) There was also no sound. | ||
| Sony | KV25XBR | INTERMITTENT RIGHT CHANNEL AUDIO, RESOLDERED J001 | Intermittent right channel audio. Audio signal was presentat connector U9/pins 1 and 4. Audio signal could also be seen atU9/pin 3, open signal return path. | ||
| Sony | KV20TS32 | CLOCK RUNS SLOW, REPLACE CRYSTAL X001 | Clock running very slow. All other functions operated correctly. Problem was cuased by X001, running about 3.8MHz, should have been 4 MHz. Replacement solved problem. -HQ COMMENTS: Thank you for your informaton. | ||
| Sony | KV20TS29 | INTERMITTENT DISTORTED SOUND, REPLACED TUNER | Intermittent sound distortion. | ||
| Sony | KV20S10 | GLOW ON SCREEN AFTER SET IS TURNED OFF | Unfocused glow on the screen after the unit is turned off. | ||
| Sony | KV20M10 | GLOW ON SCREEN AFTER SET IS TURNED OFF | Unfocused glow on the screen after the unit is turned off. | ||
| Sony | KV19TS10 | PIX IS JITTERY AFTER FEW DAYS, REPLACED C503 | Unit looses vertical sync after warm up. Discovered defective capacitor C503. | ||
| Sony | KV13VM20 | SHUT DOWN, REPLACED ZD1822 AND F1803 | The unit would start to oscillate and then immediatley shutdown. The problem was caused by ZD1822 shorting. Fuse 1803 on the 12volt line also opened. ZD1822 is over voltage protection for the 12 voltline. With the 12 v line inoperative, the feedback | ||
| Sony | KV13VM20 | VERY DARK PICTUREE, OPEN G2 RESISTOR R1915 | Picture was very dark with just a little chroma showing through. Check G2 voltage at CRT and found R1915 is open. |