Abnormal Displays Corrections Rgb1 Only - ViewSonic VPW4200 User Manual

TROUBLESHOOTING (continued)
Abnormal Displays Corrections RGB 1 Only
Depending on the kind of system equipment used, images may not be displayed normally. In this case, make the
adjustments suggested below. (only for RGB1)
Symptom 1 Text displayed across the screen appears vertically streaked, with some characters blurred (figure 1).
The display image appears flowing (figure 2) (RGB input).
Example
Figure 1
Adjustment 1) Press the MENU button. The Main Menu will be displayed.
procedure
2) Press the
3) Press the ENTER button. The Setup Menu will be displayed.
4) Press the
When adjustment is not possible with Auto Adjust:
5) Press the MENU button. The Main Menu will be displayed.
6) Press the
7) Press the ENTER button. The Setup Menu will be displayed.
8) Press the
(Displays fine patterns as characters or a vertical striped pattern over the entire screen during Horizontal Clock adjustment.)
9) Press the
10) Perform adjustment for symptom 2 below, when the characters are blurred on the entire screen.
• The display image may be momentarily disturbed during clock adjustment but this is not a failure.
Symptom 2 Text displayed across the screen appears blurred in its entirety (figure 2).
A fine pattern flickers when displayed on the screen (figure 3).
Example
Figure 2
Adjustment 1) Press the MENU button. The Main Menu will be displayed.
procedure
2) Press the
3) Press the ENTER button. The Setup Menu will be displayed.
4) Press the
When adjustment is not possible with Auto Adjust
5) Press the MENU button. The Main Menu will be displayed.
6) Press the
7) Press the ENTER button. The Setup Menu will be displayed.
8) Press the
(Displays fine patterns as characters or a vertical striped pattern over the entire screen during Clock Phase adjustment.)
9) Press or
clean across the screen.
Vertical Before adjustment
streaks Some characters
are blurred.
ABC DEFGHI J
ABC B
abcdefg ABC DEFG abcd
ABC DEFGHI J
abcdefg ABC DEFG abcd
SELECT button and Select Setup.
SELECT button and select Auto Adjust.
SELECT button and select Setup.
SELECT button and select Horizontal Clock.
or ADJUST buttons and search for clear characters over the entire screen.
Before adjustment
ABCDEFGHI J
ABC ABC
abcdefg ABCDEFG abcd
ABCDEFGHI J
abcdefg ABCDEFG abcd
After adjustment
ABC
SELECT button and Select Setup.
SELECT button and select Auto Adjust.
SELECT button and select Setup.
SELECT button and select Clock Phase.
ADJUST buttons to make the text appear
After adjustment
All characters appear
ABC
crisp now.
After adjustment
All characters are
ABC ABC
blurred.
Figure 3
9) Press or ADJUST buttons to make the text appear
without flickering.
ViewSonic VPW4200/4210
Before adjustment
After adjustment
32