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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: 5
Sharp
66GF63H
Bright picture F/B lines. 2 volts on pin 2 of ic1801
Q912 O/C. Replace q912, d1805 & c1815
14-09-04
Sharp
66GF63H
Bright raster with fback lines
pin 2 IC1801 on CRT only 2V caused by Q912 o/c BC337-40 (Sharp special - normal one overheats) Also check D1805 & C1815 both sm on crt base
14-09-04
Sharp
66GF63H
Dead with D735 (EX0875 or BZW104) s/c
Replace PSU opto - kit available but without D735
14-09-04
Sharp
66GF63H
Dead with psu clicking
Check LOPTr & fit 3 x opto coupler kits (1 psu, 2 data)
14-09-04
Sharp
66GF63H
Sound - crackling/int missing - no vol bar movement
Dry joints small audio sub pane
14-09-04
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