7
Chapter 5 Troubleshooting
Problems
Possible cause and remedy
. Afterimages appear
Afterimages are particular to LCD monitors. Avoid
displaying the same image for a long time.
Use the screen saver or power save function to avoid
displaying the same image for extended periods of
time.
•
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6. Green/red/blue/white dots or defective dots
remain on the screen.
This is due to LCD panel characteristics and is not a
failure.
•
7. Interference patterns or pressure marks remain
on the screen.
Leave the monitor with a white or black screen. The
symptom may disappear.
•
8. Noise appears on the screen.
When entering the signals of HDCP system, the
normal images may not be displayed immediately.
•
9. Display position is incorrect.
Adjust image position using <Hor.Position> or <Ver.
Position>. (
If the problem persists, use the graphics board’s utility
if available to change the display position.
•
•
10. Vertical bars appear on the screen or a part of the
image is flickering.
Adjust using [Clock]. (
)
•
11. Whole screen is flickering or blurring.
Adjust using [Phase]. (
)
•
1. Upper part of the screen is distorted as shown
below.
This is caused when both composite sync (X-OR)
signal and separate vertical sync signal are input
simultaneously. Select either composite signal or
separate signal.
•
1. The adjustment menu does not appear.
Check whether the operation lock function works.
(
)
•
1. Mode menu does not appear.
Check whether the operation lock function works.
(
)
•
1. The auto adjust function does not work correctly.
This function does not work when digital signal is
input.
This function is intended for use on the Macintosh and
on AT-compatible PC running Windows. It may not
work properly in either of the following cases. It does
not work properly when an image is displayed only
on a part of the screen (command prompt window,
for example) or when a black background (wallpaper,
etc.) is in use.
This function does not work correctly with some
graphics boards.
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Summary of Contents for RADIFORCE RX220
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