LG 50PV450C Owner's Manual page 113

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.
E 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.
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.
Check whether the file extension is supported.
Check whether the file is playing normally on a PC.
(Check whether thefile is damaged.)
Check whether the resolution is supported.
Check whether the video/audio codec is supported.
Check whether the frame rate is supported.
Check whether the file is playing normally on a PC.
(Check whether thefile is damaged.)
Check whether the audio codec is supported.
Check whether the bit rate is supported.
Check whether the sample rate is supported.
Check whether the file is playing normally on a PC.
(Check whether thefile is damaged.)
Check whether the video file and subtitle file name are the same.
Check whether the video file and subtitle file are located in the same folder.
Check whether the subtitle file is supported.
Check whether the language is supported. (When you open the subtitle file on a
PC, you can check the language of the subtitle file.)
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