Sony TV Repair: Common Faults and Solutions.


AIWA
BEKO
CCE
CINERAL
DAEWOO
FUNAI
GRADIENTE
GRUNDIG
HISENSE
HITACHI
ITT
JVC
LG
MITSUBISHI
PANASONIC
PHILCO
PHILIPS
PIONEER
RCA
SAMSUNG
SANYO
SHARP
SONY
THOMSON
TOSHIBA
VESTEL


Search: Sony
Results: 20067

Sony Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SONYWMF8
Missing part # for a black leverA tech needed a black lever. this lever limits the switchlever 332, however, there is no description and the part # in the servicemanual. -hq comments: the part number for the unlisted part is 3-319-038-01.we will issue a t/n and s/b soon.
SONYCFSF11
Tape transport malfunctionsHead rotation gear is cracked. replacement as per tnla0022/trsb #146 is performed. the transport still jams or hangs up inter-mittently in either forward or reverse play modes. -hq comments: head rotation gear has been updated from plastic to aldie-ca
SONYTCFX510R
No functionsVarious units have come in with functional problems, displayok but no functions.
SONYKV1946R
Dead, replaced c901Unit blows fuse f602 whenever power is applied. found capaci-tor c901 shorted.
SONYKV1943R
No power on, replace c001 and c003The unit would not turn on.
SONYBMC110
No p/n for iris motorNo part # for iris motor alone. requires lens disassembly torepair.
SONYKV20XBR
No color and hue display, replaced ic107No color and hue display.
SONYSL2500
Ss-10 board changeOld board (ss-10a, p/n a-6715-131-a) uses pcb part number1-605-574-23. new board uses 1-605-574-32. trick and other functions donot work.
SONYD5
Play command causes ams to cycle through tracks on discComplaint was play command causes ams to cycle through trackson disc till last cut and begin play. preliminary checks showed b+voltages ok. discovered that ff pin 68/ic801 measured 0.6vdc all the timeinstead of 5v. thus mpu was getting ff command all
SONYSL60
I0321 recordings and no audio eraseFuzzy recordings and no audio erase.
SONYSL3030
Take-up link sensor out of positionI could load tape manually and then unit would thread tape andoperate normally. found take-up link (#186 on page 9l of the manual, p/n3-684-119-01) sensor out of position, which caused unthread end signal notto be sent to micro. -hq comments: with new
SONYSLHFR90
Unit would not load tapeUnit would not load tape.
SONYBMC220
Intermittent dew lightIntermittent dew light. customer had brought the unit intofsc twice before the unit finally failed.
SONYSL2300
Power light stays onPushing of timer record button would cause power light to stay on and the tape would eject.
SONYCFS3000
No sound on both channelsOutput to headphone is okay, but no output to speakers.i found 3 units with the same problem.
SONYSL2700
Capstan running too fastThe capstan was running too fast on this unit. all otherfunctions were ok. we found the fg1 input to the servo ic to be very low.the problem was caused by incorrect bias at the fg amp/ic306 p9, we foundc340 to be leaky. -hq comments: we received info.
SONYSL2700
Clogging video headsLately we have been seeing a large number of units comingthrough with dirty video heads. sometimes the symptom is in the form of aslight vertical jitter. other times it is a traditional snowy picture.cleaning resolves the problem for only a short time.
SONYSL2710
No beta hifi playbackThis unit had no beta hi-fi playback. we found q002 to beopen on the af-2 board (9v pb switch). also changed was c002 as itappeared to be somewhat leaky.
SONYKX2501
Jail bars, replaced c1527Picture was slightly reduced in brightness and there werenumerous dark vertical bars across the raster, about one inch in width.i suspected some sort of oscillation in the horiz. output circuit,possibly caused by poor capacitor filter action. scoping tp
SONYCFS5000
No sound on tape playbackNo sound on tape playback. other functions ok. ams seems towork. in play (with cassette in) ams solenoid occasionally kicks.