LG 20LS7D Owner's Manual page 98

The a a udio f f unction d d oes n n ot w w ork.
Picture OK & No sound
No output from one
of the speakers
Unusual sound from
inside the product
There i i s a a p p roblem i i n P P C m m ode. ( ( Only P P C m m ode a a pplied)
The signal is out of range
Vertical bar or stripe on
background &
Horizontal Noise &
Incorrect position
Screen color is unstable
or single color
Press the VOL or VOLUME button.
■
Sound muted? Press MUTE button.
■
Try another channel. The problem may be with the broadcast.
■
Are the audio cables installed properly?
■
Adjust Balance in menu option.
■
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.
Adjust resolution, horizontal frequency, or vertical frequency.
■
Check the input source.
■
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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