Dicas Reparação
Modelo - Chassis KV2680R
Pesquisa: KV2680R Enviar Dica Resolvida
Resultados 46
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2680R | INTERMITTENT AND WEAK COLOR, REPLACE IC-201 | At first, the color appeared slightly weak when compared withanother color TV. Gradually, over a period of several weeks, the colorwould come and go like it was having trouble locking on to the station. | ||
| Sony | KV2680R | POWER UP ONLY, C-140 SHORTED | Set would power up from the front panel. Couldnoff. No functions worked. Sleep light did not light. Memory chip andPLL controller had been changed by ASC. | ||
| Sony | KV2680R | V JITTER WITH COPY GUARD TAPE, CHANGE R-854 TO 390 OHM | This unit had dark picture and vertical jitter on copy guardtapes played on a VHS VCR. | ||
| Sony | KV2680R | INTERMITTENT MUTING, REPOSITION JUMPER WIRE | Two units having intermittent muting problem and missing partsof words, sometimes sounded like distorted audio. This problem developedon units that had repairs performed on X board and the original positionof jumer wire from point B to point B (connecti | ||
| Sony | KV2680R | LOW AUDIO, REPLACE VOL BUFFER Q-1126 ON X BOARD | The unit had very low audio on all functions. We found theproblem to be caused by a defective volume buffer/Q1126. | ||
| Sony | KV2680R | NO VIDEO, HI VOLTAGE OK, RESEATED CONNECTOR A21 | Power would come on, sound OK, no raster, no control offunctions. Traced problem to IC031 on X board, no 4 meg clock on Pin 16.Servicer had replaced crystal and chip. No AC Ref signal on Pin 16 of Xboard, traced signal to A21, Pin 1 on A board. Signal | ||
| Sony | KV2680R | COLOR BEAT INTERFERENCE AND HERRING BONE, COUNTER MEASURE | Color beat interference on ch. 27, 28, 29. Only on cable,seems to be chassis pick up related, and temperature related. Cooling ofIC201 fixes problem. -HQ COMMENTS: Try following countermeasures: 1) Readjust RF AFC, RV201.2) Change C203 value to 7PF. | ||
| Sony | KV2680R | SOUND FM R SPEAKER IS MUCH LOUDER THAN L SP, RESOLDER C-1190 | Sound from right speaker is much louder than left speaker. | ||
| Sony | KV2680R | NO VIP, REPLACE IC-105 | No VIP operation. All other functions worked correctly. | ||
| Sony | KV2680R | INTERMITTENTLY WON'T POWER OFF MANUALLY, IC-105 MEMORY IC | Intermittently this unit would not power off manually. Whenit was in the failure mode the screen would blank and possibly go to anoff channel when the power button was depressed. All remote functionsworked fine. We could not detect any irregular volta | ||
| Sony | KV2680R | INTERMITTENT SOUND AND VIDEO, REPLACED SAW FILTER | Set would have loss of sound and picture very intermittently.The only clue we had to the problem was the loss of DC voltage at Pin 1 ofIC201. | ||
| Sony | KV2680R | AUDIO NOISE ON RIGHT CHANNEL WITH CABLE, POOR CABLE SIGNAL | My last visit to Cathedral City I was shown a KV-2680R. Whenon SAP or both, the right channel was very noisy. I visited anotherdealer and found this to be the same on another KV-2680R. The area is oncable which is very bad. But the problem is this mo | ||
| Sony | KV2680R | VERTICAL JITTER WHEN HOOKED UP TO SATELLITE, SHORT R-859 | Vertical jitter when hooked up to a satellite. | ||
| Sony | KV2680R | VERT LINES IN PIX, DESCRAMBLED CABLE ONLY | On descrambled cable signal only, thin white vertical linesappear at one or the other side of screen. This does not occur withoff-the-air broadcasts, or unscrambled cable programs. -HQ COMMENTS: The symptom is a byproduct of scrambling and descrambling | ||
| Sony | KV2680R | NO VERT SYNC AND COLOR, REPLACE 9V REG Q-204 | Picture keeps on rolling and no color. |