Maintenance - LG 37LF7700 Owner's Manual

There is a problem in PC mode. (Only PC mode applied)
The signal is out of range
(Invalid format)
Vertical bar or stripe on
background &
Horizontal Noise &
Incorrect position
Screen colour is unstable
or single colour
There is a problem with PICTURE settings.
When the user changes
the picture settings, the
TV automatically converts
back to the initial settings
after a certain period of
time.

mAIntEnAnCE

Early malfunctions can be prevented. Careful and regular cleaning can prolong the life of your new TV.
Caution: Be sure to switch the power off and unplug the power cord before you begin any cleaning.
Cleaning the Screen
A good way to keep the dust off your screen for a while is to wet a soft cloth in a mixture of lukewarm water
➊
and a little fabric softener or dish washing detergent. Wring the cloth until it is almost dry, and then use it to
wipe the screen.
➋
Ensure there is no excess water on the screen. Allow any water or dampness to evaporate before switching
on.
Cleaning the Cabinet
To remove dirt or dust, wipe the cabinet with a soft, dry, lint-free cloth.
■
Do not to use a wet cloth.
■
Extended Absence
CAUTION
If you expect to leave your TV dormant for prolonged periods (such as a holiday), unplug the power cord to protect
►
against possible damage from lightning or power surges.
- Adjust resolution, horizontal frequency, or vertical frequency.
- Check the input source.
- Use Auto configure or adjust clock, phase, or H/V position. (Option)
- Check the signal cable.
- Reinstall the PC video card.
- It means that the TV is currently set to
To switch to Home use mode you should do the followings:
OPTION
From the TV Menu, choose
Now, you have completed switching to the
Store Demo
mode.
Mode Setting
-> Choose -> Choose
Home use
mode.
Home use
.
GB-03