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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY SLHF900
No cue/review Cue/review inoperative. audio mutes and capstan speedincreases slightly. noticed c/r signal at base of q523 (ss-53 board)would toggle, but no change at collector.
SONY CDP302
Distorted sound Distorted sound, but tracking is ok, time display normal amsand scan ok.
SONY SLHF600
Herringbone pattern in picture Herringbone pattern in e-e signal. complaint on w.o. statedonly occurred when cold. we noticed that it was actually sensitive tomechanical shock. tapping ps-39 board would cause problem to come and go.
SONY AVH55ES
No video out on video 1 and 2 No video monitor out when switched to video 1 or video 2. v3,v4, tv all ok.
SONY SLHF450
Tape plays but no video No video and r309 (va-14 board) overheats, no 5v on q64.measured a short on pin 2 of cn8.
SONY CCDV8AFU
No capstan phase lock Noise bar at 5 sec rate. observed rf envelope expand to maxand diminish. by substituting atf servo with power supply could stabilizepicture. all signals at atf servo/ic106 appeared ok, but replacementsolved problem. hint: wait for rf envelope to dimi
SONY KPR4110
Unit shuts down, replaced r-217 (e board) The unit would begin to power up and then immediately shutdown. we discovered that the problem was premature hv shut down. it wasbeing caused by r-217 being the incorrect value. there was a 33kinstalled. 20k provided correct bias and allowed normal o
SONY AVU270
No low stations The unit operated correctly except that it was not possible totune in the low stations. eg. fm/below 94mhz, am/below 1020khz and tv/below #5.
SONY KV2665
Intermittent vertical jitter with movie tape, remove q-854 When playing back prerecorded movies with copyguard the tele-vision would have an intermittent vertical jitter. all other modes workedfine - off air, generator, etc. by examining the sync in the delayed modeon the scope we determined that the vert. syn
SONY CCDV8AFU
Video was good but everything was pink Video was good but everything was pink. traced problem tome-1 board. good signal tp703. no signal tp704. signal ok pin 48 butdc voltage 4.8v. trace to leaky chip cap c711.
SONY ITA600
Radio interference Customer hears local radio stations over phone. hears 980 amand 610 am at the same time. worse when plugged into ac line. -hq comments: the rf interference is more than likely am. a choke coil(same as is used in spp-300) will soon be available from k
SONY EVS700U
Sticky drum assembly Drum does not start after unit is not used for several hours.
SONY CCDV8AFU
No power No power, all voltages normal out of dr901, vdd normal toic601. found no clock at ic601.
SONY CCDV8AFU
Tape hesitates Intermittent tape hesitation during tape run record or pb.momentary tape stoppage at random intervals progressing to emergency stopalthough normal immediately after reset, continue operation finallyobtaining complete failure of tape movement in all modes
SONY CCDV8AFU
Won't record Won't record, unable to enter any mode except eject, drum runfollowed by emergency stop. found no rf sw pulse pin 24 ic601/mc-4 board.no output pin 7 ic501 on mc-4 board, incorrect dc level pin 6 ic501.
SONY CCDV8AFU
No function No function. power up normal. found no motor power.
SONY CCDV8AFU
Flicker Flickers during playback and record, intermittent shift to four hour mode. found high frequency signal and noise present on 5 lines, variable with stress applied to dc-dc converter.
SONY BMC660
Cassette compartment won Cassette compartment will not catch.
SONY FD2A
No raster, shorted electrolytics c209, c215, c611 No raster, no sound. found one or more of the aboveelectrolytics shorted.
SONY CFS4000
Missing part numbers - packing material Need part # -hq comments: the part numbers are as follows:3-333-977-01 protection sheet3-333-979-01 cushion3-333-984-01 spacer3-333-997-01 prevention sheet3-333-980-01 cartonwe will issue a s/b.