12. No Sound
(1) Symptom
1) LED is green.
2) There is a picture but no sound.
(2) Follow check
Is there sound in any
mode?
Yes
Is there no sound
only for HDMI?
Yes
Is there no
sound only AV
/COM2/PC?
Yes
Is there no sound
only for RF?
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Only for training and service purposes
No
No
Download the EDID data.
No
Is the output
of IC600(R609, R608)
normal?
Yes
Check the signal after IC600.
Refer to circuit diagram.
No
Check the Tuner In/Out.
- 18 -
Is the speaker
on?
Yes
Is the speaker
cable normal?
Yes
No
Replace the
IC600
Is the IC500
operating normally?
Yes
Is the IC601
operating normally?
Yes
Replace the VSC BD
No
Set speaker on
in the menu.
No
Check the
Speaker cable
No
Replace the IC500
No
Replace the IC601
LGE Internal Use Only
Free Datasheet http://www.datasheet4u.com/