User guide

182
APPENDIX
APPENDIX
The audio function does not work.
Picture OK & No
sound
■ Press the
+ or - button.
■ Sound muted? Press MUTE button.
■ Try another channel. The problem may be with the broadcast.
■ Are the audio cables installed properly?
No output from one
of the speakers
■ Adjust Balance in menu option.
Unusual sound from
inside the TV
■ A change in ambient humidity or temperature may result in an unusual noise
when the TV is switched on or off and does not indicate a fault with the TV.
No sound when con-
necting HDMI or USB
■ Check HDMI cable is
High Speed HDMI Cable .
■ Check USB cable over version 2.0.
There is a problem in PC mode. (Only PC mode applied)
The signal is out of
range
(Invalid format)
■ Adjust resolution, horizontal frequency
, or vertical frequency.
■ Check the input source.
Vertical bar or stripe on
background &
Horizontal Noise &
Incorrect position
■ Use
Auto configure or adjust clock, phase, or H/V position. (Option)
Screen colour is
unstable or single
colour
■ Check the signal cable.
■ Reinstall the PC video card.
There is a problem with PICTURE settings.
When the user chang-
es the picture settings,
the TV
automatically
converts back to the
initial settings after a
certain period of time.
■ It means that the TV is currently set to Store Demo mode.
To switch to Home use mode you should do the followings:
From the TV Menu, choose OPTION -> Choose Mode Setting -> Choose
Home use. Now, you have completed switching to the Home use mode.
*This feature is not available for all models.