27
Chapter 3: Operating the Device
3.3 Troubleshooting Guide
If your display fails to operate correctly, check the following chart for possible solution before
calling for repairs:
Condition
Check Point
The picture does
not appear
Check if the signal cable is firmly seated in the socket.
Check if the Power is ON at the computer
Check if the brightness control is at the appropriate
position, not at the minimum.
The screen is not
synchronized
Check if the signal cable is firmly seated in the socket.
Check if the output level matches the input level of your
computer.
Make sure the signal timings of the computer system
are within the specification of the display.
If your computer was working with a CRT display, you
should check the current signal timing and turn off your
computer before you connect the VGA Cable to this
display.
The position of the
screen is not in the
center
Adjust the H-position, and V-position, or Perform the
Auto adjustment.
The screen is too
bright (too dark)
Check if the brightness or contrast control is at the
appropriate position, not at the Maximum (Minimum).
The screen is
shaking or waving
Perform the Auto adjustment.
Moving all objects which emit a magnetic field such as
motor or transformer, away from the display.
Check if the specific voltage is applied.
Check if the signal timing of the computer system is
within the specification of display.
If you are unable to correct the fault by using this chart, stop using your display and contact your
distributor or dealer for further assistance.
