Dicas Reparação SONY
Modelo - Chassis
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Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1520R | NO VOLUME CONTROL | This unit had no volume up. We found D1117 to be ever soslightly leaky. | ||
| Sony | KV1355R | UNIT GOES SHUT DOWN MODE, CRACK ON BOARD | Any movement of cabinet would cause the set to go intoshutdown mode. I defeated the input to the shutdown circuit, Pin 17 ofIC501 to prevent shutdown in order to isolate the problem. The voltageat Pin 16 of IC501 would increase when the problem occurre | ||
| Sony | KV1221R | INTERMITTENT TURN OFF, REPLACED IC001 | This unit would intermittently turn off. We found the remotedecoder IC (IC001) to be thermally sensitive. | ||
| Sony | KP5040 | NOISE BAR IN THE CENTER OF OTHE SCREEN, CONNECTION CHANGE | A vertical bar appeared in the center of the picture whenviewing a normal program. Investigation of the circuit revealed that theLOT transformer pulse seen at Pin 1, of T504 on the E board wasdisplaced from its normal in phase relationship to the flybac | ||
| Sony | KP5040 | MECHANICAL INCORRECT OPERATION, REPLACED IC6501 | Drive voltage to the mirror door motor would not be removedonce the door had reached its end of travel. Instead, the drive motorwould continue to ratchet. | ||
| Sony | FD20A | INTERMITTENT POOR FOCUS, REPLACED CRT | This unit had intermittent focus. The focus voltage wouldgo up to 900 volts. | ||
| Sony | KX2501 | PIC DISTORTION ON CH 7, ADD GROUND BETWEEN "C" AND CHASSIS | Oscillation left side of CRT, 1 wide, appeared on channel#7 only. | ||
| Sony | KV8100 | UNIT SHUTS DOWN | When turned on, unit would shut down. Isolated problem tothe 22 volt line. It was reading 27 volts. Found Q602 regulatordriver leaky. | ||
| Sony | KV3000R | UNIT COULD NOT BE POWERED ON | Unit could not be powered on. Inspection revealed lack of12 volt DC to control circuits. | ||
| Sony | KV2650RX | NO PICTURE, REPLACE IC002 | VC voltage on chs. 2/3/4 was low - below 2 volts. Chs. 5/6and all others were fine. Found 4 volts at Pin U on tuner. | ||
| Sony | KV2647R | PICTURE DISTORTION, REPLACE C508 | Vert. foldover and decreased vert. deflection becausecapacitor (C508) failed. This same capacitor is also failing in othermodels and quite frequently. | ||
| Sony | KV2647R | S/M CORRECTION, VOLTAGE AT IC-302 AND IC301 | Pin 8 of IC302 and Pin 3 of IC301 show two different voltages,although they should show the same if they are directly connected, asshown on schematic. -HQ COMMENTS: Your are right. It should be the same (7.2V). | ||
| Sony | KV1954R | SQUEAL, REPLACE L502 | Customer complained of squeal from unit. Servicer could notlocate as problem did not show up when in service shop. Worked withservicer and found we could duplicate problem by putting very slightpressure on the coil. | ||
| Sony | KV1943R | DEAD, REPLACED BRIDGE DIODES AND FILTER CAP | Four times within the past 3 years customer has had to havelow volt diode replaced. Found that only one diode at a time was beingreplaced. Found filter cap leaky. Replaced all 4 diodes along withthe filter cap to help prevent further customer aggravat | ||
| Sony | FD20A | NEED P/N FOR REMOVING PIN FACE SCREWS | Servicer has requested P/N for tool to remove pin face screws(P/N 3-314-055-00). Tool kit catalogue recommends three types7-700-731-11, 7-700-731-21, 3-832-391-00. Will any of these tools do thejob or are we coming out a new tool? -HQ COMMENTS: A pair |