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Troubleshooting
Problem
No Power
Power on but no
screen image
Flickering
Wrong or
abnormal colors
Entire screen
image (rolls)
vertically
Control buttons
do not work
•
Make sure power button (or switch) is ON.
•
Make sure A/C power cord is securely connected to the
back of the monitor and to a power outlet.
•
Plug another electrical device (like a radio) into the power
outlet to verify that the outlet is supplying proper voltage.
•
Make sure the video cable supplied with the monitor is
tightly secured to the video output port on the back of the
computer. If the other end of the video cable is not attached
permanently to the monitor, tightly secure it to the monitor.
•
Adjust brightness and contrast.
•
Check this user's guide to see if an adapter is required for
proper signal continuity between graphics card and
monitor.
•
Not enough power supplied. Connect the monitor to a
different outlet. If using a surge protector, reduce the
number of devices plugged in.
•
Check the ViewMeter
verify the refresh rate (vertical frequency) is 75 Hz or
higher. See "Specifications" on page 12.
•
Make sure the graphics card in your computer can use non-
interlaced mode at the desired frequencies. To enable your
graphics card to support higher refresh rates, try selecting
fewer colors or running lower resolutions.
•
If any colors (red, green, or blue) are missing, check the
video cable to make sure it is securely connected. Loose or
broken pins in the cable connector could cause an improper
connection.
•
Connect the monitor to another computer.
•
Select Degauss from the Main Menu. Do this only once.
•
If you have an older graphics card, contact ViewSonic
Customer Support for a non-DDC adapter.
•
Make sure video input signals are within the monitor's
specified frequency range.
•
Try the monitor with another power source, graphics card,
or computer system.
•
Connect the video cable securely.
•
Press only one button at a time.
Solution(s)
®
from the main menu (page 8) to
ViewSonic GS815
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