LG Plasma TV Owner's Manual page 43

The audio function does not work. '
Picture OK & No sound
No output from one
of the speakers
Unusual sound from
inside the product
l1li
Press the VOL or VOLUME button.
III
Sound muted? Press MUTE button.
Try another channel. The problem may be with the broadcast.
Are the audio cables installed properly?
m
Adjust Balance in menu option.
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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.
..
No sound
when connecting
HDMI/USB
Check HDMI cable over version 1.3.
m
Check USB cable over version 2.0.
II!
Use normal MP3 file.
'This feature is not available for all models.
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X
There is a problem in PC mode. (Only PC mode applied)
The signal is out of range
Vertical bar or stripe on
background &
Horizontal Noise &
Incorrect position
Screen color is unstable
or single color
III
Adjust resolution, horizontal frequency, or vertical frequency.
III
Check the input source.
III
Work the Auto configure or adjust clock, phase, or H/V position. (Option)
Check the signal cable.
III
Reinstall the PC video card.
43