LG 20LS3R User Manual download pdf (Page 41)

ENGLISH

Troubleshooting Checklist

The audio function does not work.

Picture OK &

No sound

• 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?

Unusual sound

from inside the

product

• 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 output from one

of the speakers

• Adjust Balance in menu option.

Screen color is

unstable or single

color

• Check the signal cable.

• Reinstall the PC video card.

The signal is out of

range.

There is a problem in PC mode.

(Only PC mode applied)

• Adjust resolution, horizontal frequency, or vertical frequency.

• Check the input source.

Vertical bar or

stripe on back-

ground &

Horizontal Noise &

Incorrect position

• Work the Auto configure or adjust clock, phase, or H/V position.

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LG 20LS3R User Manual Page 41