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Troubleshooting
Is something wrong?
If you suspect that something is not working correctly, you should:
1. Turn on the computer and display.
2. Set the brightness control (
3. Make sure that all cables are securely connected.
4. Disable the computer's screen saver program, if it is enabled.
5. Set the display mode to the supported display mode.
6. If you still have a problem, go to the symptom list below and find the symptom that
most resembles yours.
Symptom list
Before calling your retailer or ViewSonic, find the symptom that most resembles yours, and try the
suggested action. You may be able to solve the problem yourself.
Symptom
The screen is blank
and the power
indicator is off
The screen is blank
and power indicator
is steady green
The screen is blank
and the power
indicator is steady
amber
) to the proper position.
Possible cause
No power to the
display
Brightness may be too
low
The display is in
Standby mode
The video cable is not
connected
Suggested action
• Make sure that the electrical outlet and the
display are both switched on.
• Make sure that the power cord is firmly
plugged into the electrical outlet and the
power supply unit.
• If the power cord plug has a removable fuse,
replace it.
• Try another power cord.
• Try another electrical outlet.
• The video graphics card is defective. Replace
it.
• The computer is defective. Replace it.
Adjust the brightness
• Press any key on the keyboard or move the
mouse to restore operation.
• Check the Power Management software on
your computer.
• Make sure that the signal cable is firmly
connected.
• Make sure that no pins are bent in the signal
cable connector.
• The video graphics card is defective. Replace
it.
• The computer is defective. Replace it.
ViewSonic VP2290b
20
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