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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: 15
JVC
A
U2
1F1
Int signals
Dry joint IC522 5v reg mounted on central heatsink
14-09-04
Panasonic
U2
Field collapse
Q403 (Darlington tr) 2SD837 - BD645 works
14-09-04
Panasonic
U2
Frame - top foldover if adj A1 control.
Frame IC TDA1106.
14-09-04
Panasonic
U2
Lines/interference on pic
C854 o/c
14-09-04
Panasonic
U2
No brightness.
BU208.
14-09-04
Panasonic
U2
No picture - CRT cut off.
2x zeners 6.2v in regulator base cct.
14-09-04
Panasonic
U2
Sound - level affected by contrast control.
C857 ( 47u f )
14-09-04
Panasonic
U2
Sqealing/line tearing/corrugated verts
C809 1µ 250v
14-09-04
Panasonic
U2
Standby - stuck in standby.
PSU D852/3 , Q501 line drive transistor , LOPTX.
14-09-04
Panasonic
U2
Standby - stuck in standby.
D552 ( TVSC2715M ) o/c.
14-09-04
Panasonic
U2
Stuck in standby.
D852 or D853 ( BY298 ) leaky , BU208.
14-09-04
Panasonic
U2
Width & Hight reduced.
C371 ( 100uf 240v ) in middle of board.
14-09-04
Tatung
T
U2
C52G
Hotel mode removal (low sound)
press -/-- on the remote, vol up on tv, then -/-- on remote again.
14-09-04
Tatung
V
U2
CEO C chassis
Noise from chopper trfmr in standby
CE803 220µ 25v in PSU pri
14-09-04
Tatung
V
U2
CEO C chassis
Txt lines at top of pic
CE306 100u 50v
14-09-04
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