LG El
e
c
t
r
on
ic
s
/DND QA
LG El
e
c
t
r
on
ic
s
/DND QA
LG El
e
c
t
r
on
ic
s
/DND QA
LG El
e
c
t
r
on
ic
s
/DND QA Gr
Gr
Gr
Gr
Symptom : Inferior R Address color
Cause :
Inferior DATA output by cold soldering 16 pin of IC14 in X-L-TOP
( Normal waveform after tearing off IC Pin)
Countermeasure : Replace X-L-TOP board.
IC14
Cold Soldering
Abnormal waveform by cold soldering
Normal waveform after tearing off IC pin
