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Sony Repair Tips




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Search: sony
Results: 20077
Make Model Symptom Problem Solution By
SONY XRU220
Loses presets, clock resets to 1:00 (replace reset ic101) The unit's presets are lost, and the clock resets to 1:00.
SONY XRA55
"sense" function inoperative after replacing keyboard Unit came in with broken key board. when new board arrivedfound that sense button would not function.
SONY XR5600
No eject (replace tape hook, p/n 3-392-972-01) The tape will not eject once inserted, because the tape hookis broken and will not push out the tape.
SONY XR5600
Pop noise from pre-amp (remove d315) The power on line from the micro to the regulator would notturn off, until about 3 seconds after the unit was turned off. when itdid turn off the muting transistor had already been turned off causing apopping noise out of the pre-amp. this is caused by
SONY XR4400
Audio mutes (replace d907 and/or d908) D907 and d908 short, muting the audio.
SONY XR4400
No left channel audio from tape (replace hp901) There is no audio from the left channel when a tape is playing.
SONY XR4400
No tuner audio, crystal x1 cold soldered X1 has cold solder, causing it to come loose from the board.
SONY XR4400
Volume erratic (replace d908, p/n 8-719-110-49) After powering up unit volume would play normal. then go out completely. then blast back at full volume for a second, then return to normal at which time would repeat cycle.
SONY XR2300
No audio (replace d359, p/n 8-719-110-13 The unit had no audio. found d359 open.
SONY XR2300
No audio (repair damaged traces) The unit has no audio. found 3 open traces. between cnp801 pin#8 to jw61 between c357 and cnp901 and 2 between jw60 and jw54this fpr also pertains to serial numbers 618587 and 44212.
SONY XR2300
No audio (repair damaged trace between jw105 and jw50) The unit has no audio. found open trace between jw105 andjw50. also the tape deck does not function. when a tape is inserted theradio stays on.this fpr also pertains to serial number 589067.
SONY XR2300
No balance (repair open trace between cnp801 pin 3 & jw780) The balance control has no effect on the audio. it is alwayscentered. found a trace blown between pin # 3 of cnp801 and jw780.this fpr also pertains to serial numbers 566600 and 595357.
SONY XR2300
Intermittent audio/tuning on radio Unit will have intermittent audio and tuning/seek functionon radio. tape deck is fine. found that regulator b+ terminal on s703was not making good connection.
SONY XR2300
Will not accept tape (replace ref. 105, "tape hook") The tape hook is broken, jamming the mech and not allowing itto accept a tape.
SONY XR2300
No functions (replace shorted d361) D361 shorts, sending acc straight to ground.
SONY XR2300
Defective balance control When adjusting the balance control, it would just keep turningand not stop. when turning the balance control back the other way, theaudio would not come back on.
SONY XR2300
No power, no audio (repair traces in vicinity of cnp801) Some units have no power, and others have no audio or audiomissing from some channels. found the board cracked and/or lifted tracesaround cnp801.this fpr also pertains to serial numbers 575379 and 609757.
SONY XM4520
No audio output (resolder q963 and q964) Unit would power up but had no audio output. found q963 andq964 were cold soldered. it appeared that when components were installedat the factory, the board and sub heat sink were not flush together,causing the solder connections to break loose.
SONY XA18
Pop noise heard when changing discs A pop noise may be heard from the speakers when changingdiscs.
SONY CDXU6260
Will not accept cd, "load" flashes (re-align st lever) When disc is loaded, unit will not chuck disc and load continues to flash. disc is ejected a few seconds later. found st lever pinned between chassis (r) assy and slide lever in top chassis assy.