LG Electronics 23LC1R* Signal is out, Stripe on, Background, Unstable or, Single color

Troubleshooting Checklist

	The audio function does not work.
Picture OK &	• Press the VOL (or Volume) button.
	• 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.

There is a problem in PC mode.

(Only PC mode applied)

The signal is out	• Adjust resolution, horizontal frequency, or vertical frequency.
	• 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

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