Search: sony
Results: 20075
Make Model Symptom Problem Solution By
SONY SSCM354
Unit dead dc/dc convertor bad- replace Unit dead, dc/dc convertor bad. serial number 16981 and11276 also included.
SONY CKV20EXR
No audio on v1 input, replaced d905 on "u2" board No audio on v1 input. found shorted diods d904 and d905.
SONY TAAV521
Incorrect value x101 mounted on disp bd Unit sent in with broken display board. ordered new displayboard and replaced it. still could not turn power on (no function).reordered another board, installed 2nd board in unit still no power.
SONY STRGX900ES
In surround mode front channel drops vol and sound muffled When unit is put into surround mode, front channel audioreduces in volume and sounds muffled. this symptom has been reproduced onall of these models that this dealer has in stock. this is not one of themodels that the strgx900es has replaced. all his
SONY STRGX800ES
No display - resoldered ic202 No display r975 open, replaced r975 display then lit uptotally, r975 opened again.
SONY STRGX69ES
No am reception - repl ic21 Fm is ok but am is not locking in. found ic21 defective.
SONY STRD990
Distorted right & center channels - replaced ic311 Distorted right & center channels.replaced q654 per fpr n2180,however this was not cause of this problem. found right channel distortedat input jacks and worse as signal went through the amp. using scope probeas antenna found noise radiating from ic311,
SONY STRD715
Popping in main speakers at turnoff - resoldered rca jacks Found rca jacks had ring cracks, also in protect found outputsshorted.
SONY STRD715
No tuning other inputs ok Cns251 connector to tuner pcb was unplugged.
SONY STRD611
Static noise in tuner other mode, - ic301 defective Ic301 defective r805 burned, ic801 defective. i replacedr805 and ic801 unit still has noise in audio.
SONY STRAV780
Display dark - resoldered loose pin Display comes on intermittently.
SONY SDP777ES
High freq. whine in line out rear - repl ic453 Approximately 400 hz low level buzz. could only troubleshoot to determine it was being produced in digital circuits.
SONY SAVA3
No sound rear channels - replaced f908 No sound from rear channels no dc to amp chip.
SONY HST221
Unit has no audio - ic302 is missing from control bd Unit came in for no audio. noticed that ic302 was missingfrom control board. the layout of the main board in the unit is differentfrom that in the s/m as well. has there been a production change on thisunit? -hq comments: we are not aware of any chan
SONY HST201
No am/fm - resoldered x600 No am/fm. other functions ok.
SONY HCDH1200
No functions cd tape, radio or output - r905 opened No tape movement, no cd functions, no radion tune, and noouput. display is ok.
SONY HCDG2000
Display mode will not display tape or video Display would display cd when either video or tape buttonspushed.
SONY HCDD550
Pin layout of ic 1201 In the service manual ic1201 is written as an 18 pin ic. infact, it is a 22 pin ic. i assume that pin 3 of the 22 pin ic is pin 1 ofthe schematic. -hq comments: this ic, stk4231mkii, is used in several diffrent modelssuch as saw541/441, hst221, 211, 201
SONY HCDC50U
Cd will make scraping noise Other fpr's recommend installing a bumper or mod with ascrew. that's only a shortcut to the real problem. the parts that causethe problem are the top and bottom chassis parts and side supports markednot supplied on page 100 of s/m. when assembling or
SONY HCDC50U
Distortion in high speed dub - redressed components Using high speed dub, distortion in playback signal of deck bsounded like oscillation. problem was caused by c213 being bent overr212. these components are in feedback circuit of ic302 which is pbamplifier for deck b. this did not effect a normal rec