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Symptoms Explanation/solution
Computer input
No picture/no signal.
Identify that the computer has been connected to the TV set properly via computer
output (with the HD cable) or the HDMI output.
Ensure that the output signal in the computer is a format listed in the signal reference
sheet.
Turn off the computer. Identify that the computer is connected properly and restart the
computer. The plug-and-play equipment will detect the TV set automatically and set the
computer resolution properly.
Check whether the power management of the computer is enabled.
Poor picture quality. Adjust the resolution. Adjust the dot pitch and phase.
The picture becomes
smaller suddenly.
The picture becomes smaller when receiving commercial TV programs, this is caused by
the broadcasting method the supplier adopts. When high definition channel is switched to
a standard definition channel (commercial TV program), the picture will become smaller,
with a black stripe at the edge of the screen.
Black stripe at the edge
of the screen.
The aspect ratio of some wide-screen program exceeds 16:9 when they are shot (especially
cinema versions). Black stripes will appear at the upper and lower edge of the screen when
the TV set plays these programs while black stripes will appear at the left and right edge of
the screen when the TV set plays programs with their aspect ratio of 4:3.
Some DVD or other
digital source programs
display detail loss,
especially in rapid
actions and dark scene.
This is caused by digital compression of source contents used by digital broadcasting and
DVD files, making less details displayed on the TV screen or resulting in blemish on the
screen (mosaic or dot). Compression of these signals is clear, subject to the definition and
resolution of the TV set.
Remote control
The remote control
does not work.
Check whether the batteries are placed properly or replace the batteries of the remote
control.
Point the remote control to the remote sensor in the front of the TV set.
Fluorescent lamps may interfere with the remote control operations; therefore, attempt
to turn off the fluorescent lamp.
Ensure signals from the remote control can reach the remote sensor directly.