Actions To Correct Abnormal Displays - Hitachi CMP4202U User Manual

TROUBLESHOOTING (continued)

Actions to Correct Abnormal Displays

Depending on the kind of system equipment used, images may not be displayed normally. In this case, make the
adjustments suggested below.
Text displayed across the screen appears vertically streaked, with some characters blurred (figure 1).
Symptom 1
The display image appears flowing (figure 2) (RGB input).
Figure 1
Example
1) Press the AUTO button on the remote control.
When adjustment is not possible with AUTO ADJUST
2) Press the MENU button. The Main Menu will be displayed.
Adjustment
3) Press the
procedure
4) Press the ENTER button. The Display Menu will be displayed.
5) Press the
(Display fine patterns as characters or a vertical striped pattern over the entire screen during clock adjustment.)
6) Press the
7) 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.
Text displayed across the screen appears blurred in its entirety (figure 2).
Symptom 2
A fine pattern flickers when displayed on the screen (figure 3).
Figure 2
abcdefgABCDEFGabcd
abcdefgABCDEFGabcd
Example
1) Press the AUTO button on the remote control.
When adjustment is not possible with AUTO ADJUST
2) Press the MENU button. The Main Menu will be displayed.
3) Press the
Adjustment
4) Press the ENTER button. The Display Menu will be displayed.
procedure
5) Press the
(Display fine patterns as characters or a vertical striped pattern over the entire screen during PHASE adjustment.)
6) Press or
screen.
Vertical
Before adjustment
streaks Some characters
are blurred.
ABCDEFGHIJ
ABC B
abcdefgABCDEFGabcd
ABCDEFGHIJ
abcdefgABCDEFGabcd
key of the SELECT button and select DISPLAY.
key and select CLOCK.
or key and search for clear characters over the entire screen.
Before adjustment
ABCDEFGHIJ
ABC ABC
ABCDEFGHIJ
After adjustment
ABC
key of the SELECT button and select DISPLAY.
key and select PHASE.
to make the text appear clean across the
After adjustment
ABC
All characters appear
crisp now.
After adjustment
ABC ABC
All characters are
blurred.
Figure 3
6) Press or to make the text appear without flickering.
Before adjustment
After adjustment