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Track On OK?
YES
Disc Play.
YES
All output OK?
YES
All output OK?
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
NO
Proper TRO
signal on
IC401?
YES
T=& T- output
properly?
YES
Check P400 connec-
tion with pickup.
NO
Check RF Signal
Waveform.
NO
Video Output OK?
Video Output OK?
NO
Check related circuit
between IC401 and
ES8380.
NO
Check Tracking control
on IC401.
Check picture signal data on
NO
ES8380 pin110 and check
mute signal on Q503.
NO
Refer on DVD/ USB Function
Audio Abnormal Checking.
- 3-9 -
LGE Internal Use Only
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