Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
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Sony | XVT33 | FLAGGING AT TOP/ ADJUST RV-304, RV-305 | When the VCR is played through unit, pictures are superimposed. Normal play of the VCR is good, but when paused or used in slowmotion, the picture will flag at the top. | ||
Sony | CCDF45 | INTERMITTENT OPEN PS503 | The CCDF45 was intermittently blowing PS503, similar but notexactly the same as bulletin 164. | ||
Sony | KPR53XBR15 | DISTORTED AUDIO AFTER 20 MINUTES, REPLACED THE X3 BOARD | It was intermittent after about twenty minutes and audio wasdistorted in both channels. | ||
Sony | KPR46XBR15 | LOSING PICTURE AND SOUND, REPLACED THE TUNER | On the main picture, there is intermittent video and audio. | ||
Sony | KPR46CX25 | REGISTRATION DRIFT, REPLACED Q551, AND Q552 | A technician in Costa Mesa informed me of three sets that hehas been repairing in the last several months because of a convergencedrift. Depending on on which color drifts, red, green or blue (Q551/Q552for red, Q553/Q554 for green, Q555/Q556 for blue) t | ||
Sony | SPPA60 | UNIT GRABS A LINE AS SOON AS POWERED UP - CHANGE Q-9. | The unit would grab the line as soon as the power wassupplied. I checked the voltage at the base of Q9 and found it was0 volts then I checked the voltage on the collector of Q9 and found it wasalso 0 volts. I found Q9 to have a short from emitter to co | ||
Sony | ITD10 | LOW DIAL TONE ON THE SPEAKERPHONE - REFLOW C-347 | The unit had a low dial tone on the speakerphone. I foundC347 was cold soldered. | ||
Sony | SPP57 | NO RING NOR PAGE - REPLACE SW-501, P/N 1-571-377-11 | The unit would not ring or page. I found SW501 was always inan off position no matter what position the switch was in. | ||
Sony | SPP57 | NO LINE LED - REPLACE D-9, P/N 8-719-029-97 | The unit would grab a line, but line LED would not light. D9(Line LED) had proper voltage to light. Eventually, I found D9 was open. | ||
Sony | SPPA20 | HANDSET DID NOT RECEIVE - REPLACE FT502, P/N 1-239-459-11 | The handset did not receive. I found FT502 was open. | ||
Sony | SPP75 | NO TALK- ERROR BEEPS - REPLACE Q-551, P/N 8-729-821-27 | When the talk button was pressed on the handset, the unitwould not scan through the channel LED's but LED 1 and 2 would blink alongwith five error beeps. The handset was not transmitting during the test.I found Q551 open which is the TX switch to supply | ||
Sony | SPP95 | NO TALK- ERROR BEEPS - REPLACE Q-551, P/N 8-729-821-27 | When the talk button is pressed on the handset, the unit wouldnot scan through the channel LED's but LED 1 and 2 would blink along withfive error beeps. The handset was not transmitting while in test. Ifound Q551 to be open which is the TX switch to su | ||
Sony | ITD200 | NO TONE DIAL - REFLOW C-334 | The unit would not tone dial. I found C334 open (coldsoldered). | ||
Sony | CDPC315 | INTERMITTENT OPEN AND NO OPEN DISK SKIP (RESOLDER M701) | The unit intermittently opened, and there was no disk skip.Upon diagnosis of unit, I found a cold solder joint on the negativeterminal of the table motor M701. | ||
Sony | STRAV770X | NO AUDIO OUTPUT - F852 & F851 FAULTY, CNB731 SHORTED | Fuses F852 and 851 would blow when the speaker selector switchwas turned to the off position. I found +20 volts on the surround relaylines of CNB731 on the surround Amp Board. Upon further inspection, Ifound B+ and surround relay line of CNP732 shorted |