10.No Sound
(1)Symptom
1)LED is blue
2)Screen display but sound is not output.
(2)Check process
All input is no sound?
No
Is the speaker “on” on menu?
No
Set on speaker on menu.
Yes
No
Only HDMI is
no Sound?
Download the EDID data.
Yes
Is the Speaker cable normal?
No
Check th Speaker cable.
Yes
No
Only RF or DTV
is no sound?
Check the Tuner in/Out.
Yes
IC100 operate
normally?
Yes
No
Replace IC100.
IC1000 operate
normally?
Yes
No
Replace IC1000.
Replace main board.
* Caution
Before change Main Board,
Check S/W version and White Balance value.
Change Main bord. 
S/W download and set White Balance value.
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