Read LG 32LC50DC / 32LC5DC (CHASSIS:LA64A) Service Manual online
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4. In case of no sound
(1) Symptom
Ø
LED is green
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 P400 normal?
Cable inserts well.
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 the IC1111
(MSP4450) output?
Replace Main board.
Replace IC.
Yes
Only AV/ component/
PC input is no sound?
Yes
Yes
No
Is the IC1111 (MSP4450)
output normal?
Replace IC.
Yes
Yes
Replace Main board.
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