HP Armada 4200 Armada 4200 Family of Personal Computers Reference Guide - Page 128

Solving Display Screen Problems, Display Screen Problems and Solutions

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If you experience problems printing, run a printer self-test. Refer to the documentation provided with your printer for instructions. If the self-test fails, it is a printer-specific problem. The printing section of your application software documentation may also be helpful. Solving Display Screen Problems Some common causes and solutions for display screen problems are listed in the following table. Display Screen Problems and Solutions Problem Possible Cause Solution Characters are dim. Brightness/contrast controls not properly set. Press hotkeys Fn+F9 to adjust contract. On models with a passive matrix display, you can also press Fn+F10 to adjust brightness. Computer screen is in Tilt display or move direct light. computer. Screen is blank. You may have a Press any key and/or screen blanking utility enter your password. installed. Brightness/contrast needs adjusting. Press Fn+F10 to adjust brightness. On models with passive matrix displays, you can also press Fn+F9 to adjust contrast. Screen has overheated. If computer is in direct sunlight, move it and allow it to cool off. Screen is blank and System is in Suspend. Press the suspend button the power/suspend to exit Suspend. indicator is blinking. System is in Suspend and QuickLock and/or QuickBlank has initiated. Exit Suspend and enter your power-on password. Continued 15-16 Troubleshooting

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15-16
Troubleshooting
If you experience problems printing, run a printer self-test. Refer
to the documentation provided with your printer for instructions.
If the self-test fails, it is a printer-specific problem. The printing
section of your application software documentation may also be
helpful.
Solving Display Screen Problems
Some common causes and solutions for display screen problems
are listed in the following table.
Display Screen Problems and Solutions
Problem
Possible Cause
Solution
Characters are dim.
Brightness/contrast
controls not properly
set.
Press hotkeys
Fn+F9
to
adjust contract. On
models with a passive
matrix display, you can
also press
Fn+F10
to
adjust brightness.
Computer screen is in
direct light.
Tilt display or move
computer.
Screen is blank.
You may have a
screen blanking utility
installed.
Press any key and/or
enter your password.
Brightness/contrast
needs adjusting.
Press
Fn+F10
to adjust
brightness. On models
with passive matrix
displays, you can also
press
Fn+F9
to adjust
contrast.
Screen has
overheated.
If computer is in direct
sunlight, move it and
allow it to cool off.
Screen is blank and
the power/suspend
indicator is blinking.
System is in Suspend.
Press the suspend button
to exit Suspend.
System is in Suspend
and QuickLock and/or
QuickBlank has
initiated.
Exit Suspend and enter
your power-on password.
Continued