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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
Sharp
4BSA
Int trip with front LED flashing
D602 1N4936 in psu
14-09-04
Sharp
4BSA
DV5161H
int. goes to stby
resolder blue tuning cap C610 near LOPTx
14-09-04
Sharp
4BSA
DV5161H
unstable line output from cold, no teletext
EEPROM IC1002 (CHIX1463CJHA), Q1010 BC338 o/c B-E, R604 3k3 0.33W o/c
14-09-04
Sharp
DV3760
4BSA
Shuts down straight away at sw on
Replace LOPTx (HR 7559) plus R649 27R 1/2W, R637 27R 1/2W, R640 56R 1/2 W + 2 elect caps between base/emitter Q1010
14-09-04
Sharp
DV3760H
4BSA
Dead but all psu secs ok apart from 13v
D602 faulty tho' measured ok
14-09-04
Sharp
DV3760H
4BSA
No start up
C604 1000mfd 16v o/c
14-09-04
Sharp
DV3761H
4BSA
Field int
C512 82nF field ramp/charging cap to pin 6 IC801 int
14-09-04
Sharp
DV5161H
4BSA
Field foldover, bright raster then collapse of pic & shut down when warm
Line drive started to break up (IC801 pin 12); 26v supply low at 19v - D501 DX0511BM faulty
14-09-04
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