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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: 13
Panasonic
U3
Comes on in standby if on/off switch is used.
Relay RY1001 carbonised contacts.
14-09-04
Panasonic
U3
Field - 1/2 pic
Q402 2SD856 - used TIP41C
14-09-04
Panasonic
U3
Field collapse
Replaced field o/p trs but ran hot - D407 1N4148 o/c
14-09-04
Panasonic
U3
Trips to st/by aft 1 sec
HT smoother C808 220µ 400v
14-09-04
Panasonic
U3
Whistles/Screeches at sw on with black lines
C809 1µ 350v, C853 100µ 250v
14-09-04
Panasonic
U3
whistling & ringing verts
C853 100µ 250v
14-09-04
Panasonic
U3
W
Channels - difficulty selecting channels.
IC TMS3452N2L.
14-09-04
Panasonic
U3
W
Channels - not storing channels.
IC TMS3452N2L.
14-09-04
Panasonic
U3
W
Dark pic with field foldover
Q552 12V reg o/c
14-09-04
Panasonic
U3
W
Lack of width & brighter on right hand side.
EW modulator diodes D552 ( TVSC2715M ) , D553 ( TVSC2406M )
14-09-04
Panasonic
U3
W
Line tearing.
C853 ( 100u f ) , C854 ( 47u f )
14-09-04
Panasonic
U3
W
No sigs or chan display from cold
TMS3453N2L memory chip (?31 from WVE)
14-09-04
Panasonic
U3
W
Verticals corrugated - noise at switch on.
C809 ( 1u f 350v )
14-09-04
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