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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KV32HSR10
No color after warm up, replace comb filter cm1301 Color would disappear after about two minutes of operation.scope signal tracing revealed normal input at comb filter but chroma out-put became distorted and noisy.
SONY KPR41DS2
No picture - no sound - sleep light on, replaced q5014 Power supply stayed in hold down condition and +135vdc line to ground measured very low resistance. found horizontal output transistor-5014 shorted.
SONY PVM2530
Picture fold over Picture folds over after about 10 minutes of operation. e-bbias on q-511 drops from -.360vdc to -.150vdc as it warms up. found d-501becoming leaky.
SONY KV32XBR10
No picture or display; sound ok, removed solder bridge ic500 No picture or display sound ok. high voltage ok. c boardvoltages are ok. inputs to ic-301 is ok but no rgb outputs. ic-301 yspin 15 and ik pin 25 both are normal. defeating ik pin per fpr did notgive picture. found ovdc at abl pin 26 of ic-301 and
SONY TCDD3
Will not load tape Unit will except and reject a tape but will not load a tape.applied external dc to motor still would not turn. turned worm gearslightly motor turned, unit would load tape and was not able to see any-thing wrong.
SONY TCS470
Motor is noisy The motor has been modified to reduce noise.
SONY CDX7520
Audible noise from speaker during ams mode of cd There is an audible noise heard from the speakers during theams mode when using cd. the lead wire of the audio gnd line picks up thenoise. the following serial numbers are affected: cdx-7520 us, can, e 104,801 to 131,000 cdx-7560
SONY WMF2031
Part number corrections for reference numbers 24 and 34 The part number listed for ref. no. 24 (t reel table assy) isincorrect and the part number for ref. no. 34 (terminal board) is notlisted.
SONY CPM200
Availability of replacement parts The flexible pipe assembly and base are not available asreplacement parts in the service manual.
SONY CDXA20
Audio was choppy Audio was choppy (sound was similar to audio when aligningclvs free-run in a cdp-101). replaced ram, tested unit, audio ok. re-assembled unit and problem was back. disassembled unit and problem re-mained. alignments looked ok, waveforms correct, but p
SONY CCDF77
No power or display No power, display off, system control dead. this is thesecond unit with this problem.
SONY EVA300U
Tape path adjustment unstable When attempting to make the tape path adjustments, i found icould not make the waveform square especially toward the entrance portionof the waveform. the picture in the play mode was fine but in pause thetop portion was distorted or torn.
SONY WMBF56
Intermittent audio - poor connection w-302 Intermittent audio or no audio on one or both channels or lowlevel audio.
SONY WMAF61
Intermittent audio - poor connection on w-302 Intermittent audio or no audio on one or both channels or lowlevel audio.
SONY WMAF60
Intermittent audio - poor connection on cn-302 Intermittent audio or no audio on one or both channels or lowlevel audio.
SONY WMAF55
Intermittent audio - poor connection on w-302 Intermittent audio or no audio on one or both channels or lowlevel audio.
SONY WMAF604
Intermittent audio - poor connection on cn-302 Intermittent audio or no audio on one or both channels or lowlevel audio.
SONY WMF2031
Intermittent audio - tuner and flex pcb Intermittent or no audio.
SONY WMAF57
Intermittent audio - poor connection on cn-302 Intermittent audio or no audio on one or both channels or lowlevel audio.
SONY WMAF50
Intermittent audio - poor connection on cn-302 Intermittent audio or no audio in one or both channels or lowaudio.