Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CDXR7 | NOISE FROM UNIT WHEN POWERED ON | When unit is powered on with disc off (tuner on, disc in orout of unit) noise is emitted from optical pick-up. Noise is generatedfrom stator board. Turning spindle by hand increases/decreases level.Moving the disc table up or down on the shaft increase | ||
| Sony | SLHF900 | FM MODULATOR DEVIATION ADJUSTMENT | RV207 had to be replaced. Deviation alignment on Page 274requires a spectrum analyzer. | ||
| Sony | SLHFR70 | INTERFERENCE | Interference when VCR off and TV on active channel 3 (2 and 4not affected). Interference rolls through picture, flashes when clockflashes on VCR display. Scope shows interference on Pins 14 and 15 of IC1power supply. Problem appears only 5-10 min. aft | ||
| 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 | SL20 | SCANNING WOULD NOT STOP ON CHANNEL | In channel up or down mode, scanning would not stop onchannel. Scanning continued to end of range. H sync pulse to systemcontrol OK. | ||
| Sony | WMF75 | INTERMITTENT AUTO REVERSE | Spurious auto reverse. The shut-off lever (B) was sticking. | ||
| Sony | ITA500 | OPERATION OF TRANSFER MODE AND OUT MODE | Customer complains of line capture in 1 1/2 rings and calltransfer - if line busy ITA-500 waits 1 hr to recall. Can this time bechanged? -HQ COMMENTS: These operating parameters are programed into the micro-processor. They candesire concerning these a | ||
| Sony | KV1396R | NO AUDIO, REPLACED R255 | This unit had no audio. The collector resistor for Q252 wasopen although it does not show a resistor number in the schematic. It ismarked R255 on the board. | ||
| Sony | KV2697R | PROBLEM WITH FACTORY INSTALLED MODIFICATION, Q-102 LEAKY | Unit would turn on and off with front panel. No other func-tions would operate. Remote hand unit would turn set on but not off. Noother functions on remote would work. Set came on displaying AUX. | ||
| Sony | SLHFR70 | NO TUNING | Would not tune, no memory. | ||
| Sony | SL3030 | BLANKING BAR GHOST AND CHRISTMAS TREE EFFECT | This unit had a problem with a blanking bar ghost and Christ-mas tree effect in the picture through the tuner on E to E mode only whencable signal was connected. The picture was good on a regular antenna. | ||
| Sony | KV25XBR | BUTTON PART NUMBERS MISSING | The part numbers for the AUX/ANT and the cable ON/OFF switchbuttons are not in the manual. The two above mentioned buttons are notpart of the switches and do not come with the assembly #63P/N 4-374-151-01. I need these two buttons (rush). -HQ COMMENTS | ||
| Sony | EVC8U | COUNTER DOES NOT WORK | Counter does not work. | ||
| Sony | CCDV8AFU | UNIT SHUTS DOWN IN FF OR REW | Will FF or REW for about 100 on counter, then unit shuts off. | ||
| Sony | XR740 | NO DISPLAY | Unit had no display, no scan down, no #6 position. |