Dicas Reparação SONY
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | HCDD117 | NO AUDIO ANY MODE - Q1121 FAULTY, P/N 8-729-900-36 | The unit had audio into the function IC IC1002 but no audioout. I found pin 6 always high (+5). From the chart below on page 15,this indicated a video switch went to the microprocessor. Function A,function B, and function C lines were proper for tape | ||
| Sony | TCWR570 | DECK "A" WILL NOT PLAY - S86 IMPROPERLY CONFIGURED | The A deck would not go into play after the unit was powereddown. If tape was ejected or switch PCB cable was removed and triedplay, the unit would then function. I replaced the micro IC801 and HalfSwitch S86 but that did not correct the problem. | ||
| Sony | STRGX99ES | NOISE WHEN CHANGING VOLUME - IC514, 8-759-801-01 | On the center channel, as we increased the volume, the audiooutput was extremely noisy. It sounded like a dirty volume control. Ireplaced the volume control but it had the same problem. I found cleanaudio into pin 2 IC514. Pin 1 on IC514 had noisy au | ||
| Sony | SPP90 | INTERMITTENT CHANGE IN TX FREQUENCY - REPLACE C-549 | When twisting the handset main PCB I noticed that the transmitfrequency would jump from 49.845mhz to 49.850mhz. This was true for bothchannels (a 5KHz difference in frequency). After taking voltagemeasurements around Q508 and Q509, I could not come up w | ||
| Sony | TAAX390 | NOISE IN AUDIO FROM VOLUME CONTROL MOTOR - IC901 875963261 | When the volume control is operated from the remote, themotor noise is heard in the speaker. Changing the motor had no effect. | ||
| Sony | MDP605 | NO DISC ROTATION-MECH NOISE: CENTER-GUIDE 305 AND SPRING 304 | The center guide holding clasps broke, causing the guide andspring to fall into the mechanism. | ||
| Sony | CDX4040 | SLOW EJECT CYCLE (REPLACE SW80, SW81, P/N 1-571-754-11) | The tuner operation was normal. When ejecting the CD, themechanism will move to the lock position, but the solenoid plunger 332will take thirty to forty seconds to engage to finish the eject cycle. | ||
| Sony | KV19TS20 | AUTO PROGRAM DOES NOT WORK, ADJUST AGC | When you push the auto program button, the unit goes throughchannel but: Unit #1 programs all channels in and stops on 72. Unit #2programs some channels in, but none of the active channels. Activechannels are 2, 4, 6, and 12 and this set programs in 5 | ||
| Sony | D36 | INTERMITTENT OPERATION - CRACKED MAIN BOARD | The unit has intermittent operation. I found a crack in theboard just left of the line out jack (component side). I have seen thison more than ten units and several had to have boards replaced. None ofthe units had any sign of physical damage. Screw | ||
| Sony | CFS905 | UNIT DRAINS BATTERIES - C-354 LEAKY (P/N 1-161-379-00) | The unit drains batteries when in tape mode and tape is notbeing used, with the unit off. | ||
| Sony | SLV750HF | INTERMITTENT LOSS OF VIDEO FROM TUNER: OPEN TRACE AT Q803 | Intermittently, the video would flash on and off. I tracedthe video from the tuner and found an open trace between R811 (Q803,emitter) and R838. | ||
| Sony | CDX4040 | DISTORTED CD AUDIO, TUNER OK (REPLACE FLEX CABLE REF. 322) | The unit was distorted when playing a CD. IC3 pin 78 signalslooked slightly distorted. | ||
| Sony | KV27TS36 | TELEMATIC ADAPTERS, SEE TV SERVICE BULLETIN # 158R1 | What adapters do we use on this model? | ||
| Sony | KV27TS32 | TELEMATIC ADAPTERS, SEE TV SERVICE BULLETIN # 158R1 | What adapters do we use on this model? | ||
| Sony | D101 | THE UNIT WILL NOT OPERATE ON BATTERY POWER - DC JACK OPEN | The unit will not operate on battery power- dry cell andrechargeable batteries. The negative battery terminal does not groundbecause the switch in the DC power jack is open. This switch grounds thenegative battery terminal. |