Q770
Perfectly Flat Monitor
15/18
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6. Troubleshooting
Problem
Blank screen
Error message:
OUT OF RANGE
Self diagnostics
message
NO SIGNAL
Possible solution
If the power LED is not lit, push the power switch to turn the
monitor on. If the display unit is powered through the computer,
check that the computer is switched on.
The display unit might be in standby mode. Push one of the
keyboard keys. Check that the keyboard is properly connected to
the computer.
Check that the power cable is correctly connected to the display unit
and to the power outlet.
The graphics adapter is set for too high refresh rate or line
frequency. Select another display mode with lower frequencies in
computer.
This message indicates that the signal is missing or faulty. Check
that the signal cable connector is properly connected and that the
connection pins are not bent or damaged. If the connector is loose,
tighten the connector's screws.
If your monitor is not functioning properly, you may be able to solve the problem
by reading followings.
