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Sony Repair Tips




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Search: sony
Results: 20073
Make Model Symptom Problem Solution By
SONY KV32S15
Q601/q602 failures, replaced c609 Unit had shorted convertors, were replaced and set returnedafter checking on bench. failed again after a few days. this timevdr601, 602, 603, d603, d605, r607, r644, r611, and r612 were changed,along with q601/q602. unit ran 3 days and failed again on st
SONY KV27XBR95S
Horizontal bar in pix, replaced c1505 Unti came with horizontal lines(bars) in picture. after warm up,was able to trace problem to defective electrolytic capacitor c1505. -hq comments c1505 is located at ic1501/pins 3 and 6. schematic gridlocation l-11.
SONY KV27TS36
Dead, replaced ic602 Unit came in with blown p/s. repaired supply and set wasstill dead. no reset getting to micro.
SONY KV27TS32
Dead (no micro operation), replaced ic602 Set had blown p/s. after repairing supply set would still notcome on. found no reset getting to the micro. traced to reset ic.
SONY KV27S15
No picture, replaced r526 No picture, turning screen control would get retrace linesand dim picture. turning screen control back again picture would benormal unitl the set was turned off and back on again, then no picture.servicer replaced ic301 on m board as voltage on pins
SONY KV2553MT
Power on after fuse replacement, see sb # 199 Set came in with the above part open. this is the fuse tothe 14v supply. tech attemped to turn on the power with the button onthe front of the unit. set would not power up, and standby light came on. in attempting to diagnose problem, nothing could be
SONY KV20VM20
Intermittent tape play, solder short across rs01 Tape would play for app 30 seconds and shut down. rewind and fast forward also would react the same.
SONY KV20VM20
Dead, replaced ic1801, f1802, and zd1008 Unit had no power.
SONY KV20S10
No sync, replaced ic102 Unit exhibits no horizontal or vertical sync and displaysred 3 lines at top of screen akb ref.
SONY KV20EXR20
Shut down, replaced q605 Unit would power up and immediately shut down. problemcaused by leaky transistor in over current protect double latch circuit,q605/g board. problems with latch circuitry can be thorny. problem foundby lifing significant loads and then monitoring sh
SONY KV13VM20
Intermittent vol and ch operation, watt-saver bulb affects Customer complained that unit would int. change vol. andchannel. vol would start to rise by itself and not stop or channel wouldstart to change and not stop. removing unit power would stop problem.cnv at ssc.
SONY KV10FMR20
No audio, replaced c252 Unit had no audio in fm/video or tv mode. discover defective capacitor c252 on y pc board. -hq comments: c252 filter cap is located on the y board on the9v supply line. schematic grid location b-5
SONY FDT5BX5
Fuse f602 blows due to int high current draw resolder d505 F602 blows causing no pix. replaced fuse found unit worked,put amp meter in place of fuse, unit showed 600-900 ma current drawaveraging 750ma with normal pix. found cold solder on d505 damper diode.after resolder unit had 490-680ma, current draw aver
SONY FD525
No raster, replaced c803 No raster, hor out trs gets out. traced waveform @ ic201, pin17 (hor drv) to base of h drive trs - ok. checked signal on other side ofc803, at hor. output q802 base. severe loss of signal.
SONY SPPA450
Flywheel broken on mech Unit had no answering machine funtions and had a rattle.found flywheel broken from capstan shaft assy.
SONY TCWR645S
Deck b inoperative - resoldered cn81 Deck b would not always play tapes. deck b would notdistinguish between different tape types.
SONY TCWR645S
Deck a no function - resoldered cnp81 No function on a deck.
SONY TCRX79ES
Eating tapes, plays too fast - replaced m1053 Unit has fast playback. m1053 capstan motor went defective,speeds up to 5014 hz normal instead of 3000 hz.
SONY TADL100
No power - replaced power transformer No power.
SONY TADL100
No audio - reinserted cnp903 Unit had no audio. -solution : connector cnp903 not plugged in. this connector suppliesvoltage to decoder board and main.