3B Technology LT27A02, User Manual

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5. Troubleshooting
In case a problem occurs with your LCD, please take the following steps first.
If you still have the problem, turn the power off and contact your dealer or an authorized
service center.
TROUBLESHOOTING
Screen is too large
or too small
Execute automatic adjustment by pressing Auto config button. If the screen is
still abnormal after Auto config, perform fine adjustment.
Computer input
Screen is abnormal
It is the noise when the mechanism expands of contracts from to changes to
the environment due to factors such as humidity, temperature, etc. it is not a
failure
LCD makes strange
noise
ㅡ
Is the unit receiving interference from other devices? Transmission antennas
of radio broadcasting stations and transmission antennas of amateur radios and
cellular
ㅡ
Use the unit as far apart as possible from devices that may
cause possible interference Dimensional Drawings
There are stripes on
the screen or colors
fade
LCD indication lamp
is On.
The red means the Stand-by power is ON. It will take a few seconds to turn
off as the main power is off.
The picture is
spotted
ㅡ
There may be interference from automobiles trains, high voltage lines neon
lights, etc.
Increase the sound by pressing volume adjustment button. Check if voice
terminal of external input is connected properly. Check if speaker cables are
connected properly Select and check the other input. If the sound still does not
work and the other channels are the same after you have done as the above,
contact your dealer or an authorized service center.
Screen appears, but
there is no sound
Check if main power is On. Check that the batteries of the remote control were
loaded properly. Check to see if any obstacle exists between the LCD and the
remote control and remove it, if any. If the batteries have no power, replace them
with two new batteries.
Remote control does
not work
Is the power plug pulled out? Insert the power plug, Turn the main power
button on and then press the power button of the remote control.
The screen does not
appear.
Adjust the screen size.
Stripes appears on
the screen and it
shakes
Troubleshooting
Simultaneous Screen
does not appear
Perform brightness adjustment or contrast adjustment.
Screen is too bright
or too dark.
Check that LCD and external equipment are connected. Check the inputs of
simultaneous screen by pressing sub-screen selection.
Stop using wireless telephones, hair driers, and electrical drills.
Screen appears in
black and white
Adjust color temp.
CHECK ITEM