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Perform the adjustments according to Instruction Manual. If the problem still
exists and you cannot correct the problem, stop using the DISPLAY and
contact your dealer or the nearest service center for further assistance.
SYMPTOMS CHECK ITEMS
Make sure the power cord is firmly plugged in the
socket.
Make sure the power switch is turned on.
Make sure the AC socket is OK.
No picture
a) Power indicator
does not light up.
Check the Remote control. It may need new batteries
Make sure the DISPLAY is ON
Check if the signal cable is properly connected.
No picture
b) Power indicator
is green.
Increase the CONTRAST and/or BRIGHTNESS.
The DISPLAY is on power saving mode, touch the
keyboard or the mouse.
Make sure the DISPLAY is ON.
No Picture
c) Power indicator
is red.
Make sure the signal cable is properly connected.
Unclear picture,
Noise
Make sure the TV signal is being received or cables are
well connected.
Make sure the audio cables are properly connected.
Make sure the headphone is not connected.
Make sure the “Mute” function is not set.
No Sound
If picture is received, adjust to the TV system setting
correctly.
Display is too
dark or too bright.
Lower the contrast and brightness from OSD or input
device.
Display is not in
the center.
Adjust the image position using H-position or V-position
in OSD. (PC mode only)
Check if the power voltage is within the spec.
Display vibration.
Check if the signal cables are properly connected.
After-image
remains after TV
turns off
This is a characteristic of liquid crystal that will not cause
a malfunction and disappear after a few minutes
Distorted image Make sure the aspect ratio is set properly.
Purple image
Check if Proper signal type of “Component” or “RGB”
setting is set.
Out of Range Check if the input signal is acceptable for display.
Green, red, blue,
white dots on
screen
This is a characteristic of liquid crystal. It will not cause a
malfunction.
Make sure battery’s power is ok, or wrong battery
polarity orientation.
Remove the obstacle between remote control and
DISPLAY.
Check if one of Key buttons is stuck which may cause a
malfunction.
Remote control
does not work
Note that the distance from DISPLAY should be less
than 15”.