LG PA45** Owner's Manual page 95

Video
Problem
An image displays in black and
white or the colour quality is poor.
Horizontal or vertical bars appears
or images blur
Lines or streaks appear on images
Afterimages (ghosts) appear when
the product turns off
The power is on but the screen
appears extremely dark.
"No Signal" appears on the screen.
Black spots appear on the screen.
The display offset is wrong.
Thin lines appear in the background
of the screen.
Horizontal noises appear or
characters blur.
The reception on some channels is
poor
Pentouch
Problem
The touch pen does not work.
The TV screen doesn't look normal
when using Pentouch.
The touch pen is touched on wrong
positions.
The touch pen movement is not
smooth.
Adjust the colour setting in the Picture menu.
y
Keep a sufficient distance between this product and other electronic products.
y
Scroll to other channels. There may a problem with the broadcast.
y
Check if there are local interferences such as an electrical appliance or power
y
tool.
Check the antenna or aim the antenna to the proper direction.
y
Pixels may have been damaged from a fixed image displayed for a long time
y
(image burn). Use a screen saver to prevent the pixel damage on the screen.
Adjust the brightness and contrast in the Picture menu.
y
Check if the signal cable is connected between the TV and products properly.
y
Check the selected input source by pressing INPUT.
y
Several pixels in red, green, white, or black may appear on the screen that can
y
attribute to the characteristics of the panel.
This is normal.
Adjust the position setting in the Picture menu.
y
Check if the video card resolution and frequency are supported by the product.
y
If the frequency is out of range, set to the recommended resolution using the
display settings on the external device.
Check the video cable connections.
y
Adjust the Phase setting in the Picture menu.
y
See "SCREEN".
Scroll to other channels. There may a problem with the broadcast.
y
The station signal may be weak. Aim the antenna to the proper direction.
y
Check if there is local interference such as an electrical appliance or power tool.
y
Check that you used the remote control to enter Pentouch mode.
y
Check that the Pentouch dongle is connected to the computer and the red LED
y
is on.
Press the Touch Home button on the touch pen to check that it is powered on.
y
Check that the touch pen is paired for use. (The touch pen is correctly paired if
y
the red LED is on once when you press the Touch Home button on the touch
pen.)
Set the computer screen to display only on the TV.
y
A Check that the computer is correctly connected to the TV.
y
A Check that you are using the optimal resolution.
y
Set the aspect ratio on the TV to Just Scan.
y
Set the computer screen to display only on the TV.
y
If the point you touch on the TV screen using the touch pen and the point
y
indicated as touched on the computer screen do not match when the computer
and the TV are connected by a PC signal (RGB) cable, use the TV remote
control to select [Home] → [PICTURE] → [SCREEN] (RGB) , then select [Auto
Configure] to adjust the screen.
Check whether the computer and the TV are too far from each other. Check
y
whether there are too many obstructions between the computer and the TV.
A Check whether many other applications are running on the computer. (Please
y
avoid running other applications while using the Pentouch programme.)
TROUBLESHOOTING
Solution
Solution
95