77
AP
PE
N
D
IX
The audio function does not work.
Picture OK & No
sound
■ Check whether the TV is switched on.
■ 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 size, 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.
