Dicas Reparação
Modelo - Chassis
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Resultados 83903
Resultados 83903
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1217 | PICTURE DISTORTION, SEE MODIFICATION BELOW | Horiz. centering adjustment will not shift picture far enoughtowards the right. Center adjustment only expands the picture. -HQ COMMENTS: Try the following circuit modification. Place the horiz.centering R. position. The R1, R2, C1 values shown shoul | ||
| Sony | KV1207 | NO CHANNEL LOOK | Set changes channel by itself usually ending on Ch. 13position. | ||
| Sony | KP5040 | INCORRECT MECHANICAL FUNCTION, USE OF LOCTITE | When unit was turned on the mirror door would extend about2/3 of the way out and start clicking. The motor would continue to runand not shut off. Disassembly revealed the retaining nut on the driveshaft had worked loose allowing the left hand side door | ||
| Sony | KV2647R | NO PICTURE, OPEN R057 AND PRESCALER, | R057 resistor open (MF board). No problem found in reg.circuit. Solder splash on feed thru terminal of prescaler. | ||
| Sony | KV2645RS | TUNING WOULD NOT LOCK, REPLACED S2262 | TV would continuously scan through all channels. Foundchannel up button closed. | ||
| Sony | KV2645R | DARK PICTURE, REPLACED R-751 | Dark picture like weak CRT. Found R751 changed value. | ||
| Sony | KV2601 | PART NUMBER MISSING | Servicer has KV-2601 with spark gap on C board shorted -schematic designation SG. The part number was omitted from the servicemanual of all the above listed models. -HQ COMMENTS: The spark gap in question is not available as a separatepart. It comes w | ||
| Sony | KV1945RS | PICTURE DISTORTION, REPLACED C544 | Severe pincushion problem, pin control has no control. Baseof Q503 was negative instead of 2V. Found signal on base has a lot ofspikes, which could come only from one point, the flyback. C544 was opencausing no filtering. | ||
| Sony | KV1945R | NO PICTURE, REPLACED SHORTED Q006 AND Q008 ON MD BOARD | This set had no VC voltage and band selection voltages werewrong at tuner. | ||
| Sony | KV1945R | SHUT DOWN, TRIMMED R563 | This unit intermittently shuts off by itself. | ||
| Sony | KV1913 | PICTURE DISTORTION | These two units came in with high brightness with retracelines. Found R721 open. | ||
| 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. |