APPENDIX

The audio function does not work.

Picture OK & No sound

No output from one

of the speakers

Unusual sound from

inside

the product

APress the VOL + or - button.

ASound muted? Press MUTE button.

ATry another channel. The problem may be with the broadcast.

AAre the audio cables installed properly?

AAdjust Balance in menu option.

AA 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 problem with the product.

Only RGB/DVI mode applied

No image is displayed.

Power is on, power indic- tor is blue but the screen appears extremely dark.

Does the power indica-

tor look amber?

Does the ‘Out of range’

message appear?

Does the ‘Check signal cable’ message appear?

AAdjust brightness and contrast again.

AIf the product is in power saving mode, move the mouse or press any key.

AThe signal from the PC (Video card) is out of the vertical or horizontal frequency range of the product.

Adjust the frequency range by referring to the Specifications in this user’s guide.

AThe signal cable between PC and product is not connected. Check the signal cable.

APress the ‘INPUT’ button in the remote control to check the input signal.

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LG Electronics MM22009944DD, MM11999944DD, MM22229944DD owner manual Appendix, Audio function does not work