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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
Alba
CTV55
bright pic
black bars present when A1 reduced - HT res cap C437 22µ 250v
14-09-04
Alba
CTV55
Dead
s/c reading in lop due to D404 FR155 eff diode (pin 11 to chassis)
14-09-04
Alba
CTV55
DEAD LINE OP TRANSISTOR READS SC
D404 SC
14-09-04
Alba
CTV55
NO LUMINANCE
CHECK R423 100k R429 180k Q303 IF REMOVING D309 CURES TRY Q304 R366 22k
14-09-04
Alba
CTV55
No luminance
Check R429 180k & R423 100k in beam lin cct. R366 22k
14-09-04
Alba
CTV55
No pic OSD OK
R366 ( 22K )
14-09-04
Alba
CTV55
Smeary pic
RGB colls only 100v, L501 330µH o/c
14-09-04
Roadstar
CTV55
2
Dead
Check CP22 & 30 100µ & RP04 & 05 180k. QP01 2SA1012 - use BD224C in lieu. ZP06 6v8 zener & RV01 4R7 & ICV1 TDA3653
14-09-04
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