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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 8
Sony
BC-4
KV14V5U
frame blanking appears as black band in the centre of screen
C378 (116400511) on pin 45 of IC304
14-09-04
Sony
BC-4
KV14V5U
lack of contrast on pic and text
R833 (124944111) faulty, also check R832, R838
14-09-04
Sony
BC-4
KV21V6U
comes out of staby then trips, LED blinks 4 times
R623 100R 0.25W o/c
14-09-04
Sony
BC-4
KV21V6U
distorted audio on VCR playback
DJ on L1004 in audio section on VCR PCB
14-09-04
Sony
BC-4
KV21V6U
will not record, playback is Ok
resolder tuner units TU101 and TU102
14-09-04
Sony
BC4
Dead
Check st/by psu o/p - TOP223Y-BB chopper chip IC610 & R602 0R1 1/2w & D603 S1Wb60
14-09-04
Sony
BC4
Dead - st/by LED flashes 2 times (Excess I)
R624 180k hi res/o/c
14-09-04
Sony
BC4
Line foldover with LOPTr overheating
R624 180k hi res/o/c
14-09-04
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