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Compaq 7020 User Manual Page 26

Flat panel monitor.
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Troubleshooting
PROBLEM: There is no picture on the monitor.
If there's no picture on the monitor, please perform the following
steps:
1. Make sure the power indicator on the monitor is ON, all
connections are secured, and the system is running on the
correct timing. Refer to Chapter 3 for information on
timing.
2. Turn off the monitor and then turn it back on again. If there
is still no picture, press the Adjustment Control button
several times.
3. If step 2 doesn't work, connect your PC system to another
external CRT. If your PC system Functions properly with a
CRT monitor but it does not function with the monitor, the
output timing of the VGA card may be out of the LCD's
synchronous range. Please change to an alternative mode
listed in the Standard Timing Table or replace the VGA card,
and then repeat steps 1 and 2.
PROBLEM: There is no picture on monitor.
If you have chosen an output timing that is outside of the
monitor's synchronous range (Horizontal: 30~ 80KHz and
Vertical: 56 ~ 75 Hz), the OSD will display an "Out of Range"
message. Choose a mode that is supported by your monitor.
Also, if the signal cable is not connected to monitor at all or
properly, the monitor screen will display a message "No Input
Signal".
4-2
Compaq 7020 Flat Panel Monitor User's Guide

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