Read LG 32LG515H (CHASSIS:LA66A) Service Manual online
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4. In case of no sound
(1) Symptom
Ø
LED is blue
Ø
Screen display but sound is not output
(2) Check following
Is this problem occur
In some input (mode)?
Is the output signal of
The P100 normal?
Download the EDID data.
Only HDMI is No sound?
No
Yes
No
Cable inserts well.
Is the cable
connected Normal?
No
Yes
Cable inserts well.
No
Only RF is no sound?
Check the
Tuner IN/OUT
No
No
No
No
Is the cable
Connected Normal?
Is normal the IC1111
(MSP4450) Output?
Replace Main board
Replace IC.
Yes
Only AV/component/PC
input is no sound?
Yes
Yes
No
Is normal the IC1111
(MSP4450) Output?
Replace IC
Yes
Yes
Replace Main board
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