LG 32LC7D Owner's Manual page 78

lllllll Press the VOL or VOLUME button.
lllllll Sound muted? Press MUTE button.
lllllll Try another channel. The problem may be with the broadcast.
lllllll Are the audio cables installed properly?
lllllll Adjust Balance in menu option.
lllllll A change in ambient humidity or temperature may result in an unusual noise
when the product is turned on or off and does not indicate a fault with the
product.
m
z
x
Work the Auto configure or adjust clock, phase, or H/V position. (Option)
Check the signal cable.
Reinstall the PC video card.
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