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Maintenance
Troubleshooting
Fault Finding
Problem Check
Item
Treatment
Page No.
No picture
Is a computer's signal
Check a computer manual and
timing (horizontal or Vertical set the signal timing so that it
synchronous signals) over
falls within the range for this
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the range specified for this
monitor's specification.
monitor ?
Screen's display
Is the computer's screen
Reset the screen size.
–
range is incorrect.
size set correctly ?
Part of screen is
Is the adjustment for screen
Adjust the screen.
12
missing.
correctly ?
Picture is distorted.
Is the RGB or DVI cable
Check the RGB or DVI cable
7
connected securely ?
connection.
Is the screen adjusted
Adjust the screen correctly.
12
correctly ?
The computer's signal timing Check the computer’s
may not match the monitor's specifications.
–
specifications.
Not change to
Is the cable connected
Check the RGB or DVI
7
another input signal. exactly?
cable connection.
Fault Finding
Please check the following items before requesting repair. When this LCD monitor still
does not work properly after checking in following way, stop using it, turn off the power
switch, unplug the power plug from the AC Outlet, and contact the store where it was
purchased. In case a COMPUTER is connected, please refer to the User's Manual for
this LCD monitor also.
Computer Screen is displayed:
Video Screen is displayed:
Problem Check
Item
Treatment
Page No.
No picture
Does the Power Switch on
Check the power status on an
an equipment connected turn equipment connected.
–
ON?
Is a signal cable connected
Check the cable connection.
8-9
firmly?
Brightness, contrast
Is the brightness or contrast
Adjust the screen again.
and etc. are no good and etc. on the screen
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adjusted correctly?
Always unplug the AC cable from the outlet before maintenance.
Also unplug the signal cables from the computer.
Soak a soft cloth in water or neutral detergent, wring well,
and wipe the cabinet gently. Never use solvents such as
paint thinner or benzene as they will damage the surface
of the cabinet. Follow the manufacturer’s directions when
using chemically treated cloths.
Gently blow away any dust that has adhered to the
display screen. Apply a small amount of water to a soft
cloth, wring well and then wipe gently. Do not use organic
solvents such as ethyl alcohol, thinner or benzine etc.
Do not rub with pointy objects such as a pen or screw-
driver.
Cabinet
Display Screen