LCD TV SERVICE MANUAL - diagramas.diagram...
LCD TV SERVICE MANUAL - diagramas.diagram...
LCD TV SERVICE MANUAL - diagramas.diagram...
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10. No Sound<br />
(1) Symptom<br />
1) LED is green<br />
2) Screen display but sound is not output.<br />
(2) Check process<br />
All input(mode)<br />
is no sound.<br />
Yes<br />
All input(mode)<br />
is no sound.<br />
Yes<br />
Only AV/COM2/PC<br />
input is no sound.<br />
Yes<br />
Only RF is no sound.<br />
No<br />
No<br />
No<br />
Copyright © 2008 LG Electronics. Inc. All right reserved.<br />
Only for training and service purposes<br />
No<br />
Is the speaker<br />
on it menu?<br />
No<br />
Download the<br />
EDID data.<br />
Is the output of<br />
IC600 normal?<br />
Yes<br />
Check the signal after<br />
IC600 refer to circuit<br />
<strong>diagram</strong>.<br />
Check the Tuner In/Out.<br />
- 18 -<br />
No<br />
Yes<br />
Is the speaker<br />
cable normal?<br />
Yes<br />
Replace IC600<br />
Is IC801 operated<br />
normality?<br />
Yes<br />
Is IC601 operated<br />
normality?<br />
Yes<br />
Replace Main B/D.<br />
No<br />
No<br />
No<br />
Set on speaker<br />
in menu.<br />
Check the Speaker<br />
cable.<br />
Replace IC801<br />
Replace IC601<br />
LGE Internal Use Only
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