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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: 10
Sharp
51CS
Dead
C714 1000µ 10v slightly hi esr (0.8), R643 10R (22R?) looks burnt - replaced with 10R ?w
14-09-04
Sharp
51CS
Dead
R643 22R 1/2w fusible had risen in value to 50R
14-09-04
Sharp
51CS
-05H CS
Dead with short between C & E of LOPTr
C602 1nF 2000v was causing it - leaky
14-09-04
Sharp
51CS
03
Slow start up then st/by only
C712 220µ 25v
14-09-04
Sharp
51CS
03H
No / int field collapse
Resolder L501 ( joints on body )
14-09-04
Sharp
51CS
03H 59CS03H
Field fault , or general modification .
Add 1N4148 from emitter Q509 to cathode D513 ( cathode to E Q509 . Pt No RH-DX0045BMZZ ) . Change R534 for 390R ( Pt No VRS-T
14-09-04
Sharp
51CS
03H 59CS03H
Int bleep from speakers or int no sound ( when hot
Add wire link from pin 22 IC301and pins 28 , 29 ( Gnd )
14-09-04
Sharp
51CS
03H 59CS03H
Int flyback lines ( may be red , greeen or blue )
Flux becoming conductive on Q870 , 871 , 872 . remove transistors , clean pcb and transistors and replace .
14-09-04
Sharp
51CS
03H 59CS03H
Stuck in StBy .
If no 300v across C708 check for continuity from D704 cathode to L703 . PCB sometimes damaged in transit .
14-09-04
Sharp
CS
51CS
03H
Long time to come on or reverts to st/by
C714 1000µ 10v & check for dry joints
14-09-04
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