LG 23LRB Owner's Manual page 15

• Press the VOL (or Volume) button.
Picture OK &
• Sound muted? Press MUTE button.
No sound
• Try another channel. The problem may be with the broadcast.
• Are the audio cables installed properly?
No output from
• Adjust Balance in menu option.
one of the
speakers
Unusual sound • A change in ambient humidity or temperature may result in an
from inside the unusual noise when the product is turned on or off and does not
product indicate a fault with the product.
• Adjust resolution, horizontal frequency, or vertical frequency.
The signal is out
• Check the input source.
of range.
Vertical bar or
stripe on
• Work the Auto configure or adjust clock, phase, or H/V position. (option)
background &
Horizontal Noise
& Incorrect
position
Screen color is
• Check the signal cable.
unstable or
• Reinstall the PC video card.
single color
The audio function does not work.
There is a problem in PC mode.
(Only PC mode applied)
Troubleshooting Checklist
33