LG CF-21Q20EH - Page 14

- 14 -
Check the voltage at
pin10 of IC601(Sound Amp)
Check & Replace
F851,FB853,D850
Check the waveform
at pin24,25 of ICN01
Check the voltage
at pin8 of IC601
Check & Replace
Q601,IC01
Check & Replace
IC601,QN01-02,P605(6)A
Check the waveform
at pin47 of ICN01
Check & Replace
XN01,ICN01
Check the waveform
at pin12 of IC141
Check & Replace
IC01
Check & Replace
Z102,IC141
5V0V
Check the waveform
at pin21,22 of ICN01
Check the waveform
at pin1,3 of ICN02
Check & Replace
ICN02
Check & Replace
P605(6)A,H/P Jack
Check & Replace
ICN01
No Sound(Picture OK)
No Sound from H/P Jack(Option)
(Main Sound OK)
0V 32V
Yes
No
No
NORMAL
Abnormal
Normal
No Normal
No
NORMAL
All manuals and user guides at all-guides.com