LG 42LG50 Owner's Manual (English) - Page 121

Sound muted? Press MUTE button., Picture OK & No sound

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The audio function does not work. Picture OK & No sound I Press the VOL or VOLUME button. I Sound muted? Press MUTE button. I Try another channel. The problem may be with the broadcast. I Are the audio cables installed properly? No output from one of the speakers Unusual sound from inside the product I Adjust Balance in menu option. I 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 sound when connecting HDMI/USB I Check HDMI cable over version 1.3. I Check USB cable over version 2.0. I Use normal MP3 file. APPENDIX There is a problem in PC mode. (Only PC mode applied) The signal is out of range I Adjust resolution, horizontal frequency, or vertical frequency. I Check the input source. Vertical bar or stripe on background & Horizontal Noise & Incorrect position I Work the Auto configure or adjust clock, phase, or H/V position. (Option) Screen color is unstable I Check the signal cable. or single color I Reinstall the PC video card. 119

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APPENDIX
119
There is a problem in PC mode. (Only PC mode applied)
■
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.
The signal is out of range
Screen color is unstable
or single color
Vertical bar or stripe on
background &
Horizontal Noise &
Incorrect position
Picture OK & No sound
Unusual sound from
inside the product
No sound
when connecting
HDMI/USB
No output from one
of the speakers
The audio function does not work.
■
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.
■
Check HDMI cable over version 1.3.
■
Check USB cable over version 2.0.
■
Use normal MP3 file.