Hitachi CMP4202 - Manual (Page 29)

ENGLISH
Depending on the kind of system equipment used, images may not be displayed normally. In this case, make the
adjustments suggested below.
Actions to Correct Abnormal Displays
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
ABC
B
ABCDEFGHIJ
abcdefgABCDEFGabcd
ABCDEFGHIJ
abcdefgABCDEFGabcd
Vertical
streaks Before adjustment
Some characters
are blurred.
After adjustment
All characters appear
crisp now.
After adjustment
All characters are
blurred.
ABC
ABC
ABC
Adjustment
procedure
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
key of the SELECT button and select DISPLAY.
4) Press the ENTER button. The Display Menu will be displayed.
5) Press the
key and select CLOCK.
(Display fine patterns as characters or a vertical striped pattern over the entire screen during clock adjustment.)
6) Press the
or key and search for clear characters over the entire screen.
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.
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
ABCDEFGHIJ
abcdefgABCDEFGabcd
ABCDEFGHIJ
abcdefgABCDEFGabcd
Before adjustment
After adjustment
ABC
ABC ABC
Before adjustment
After adjustment
Adjustment
procedure
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
key of the SELECT button and select DISPLAY.
4) Press the ENTER button. The Display Menu will be displayed.
5) Press the
key and select PHASE.
(Display fine patterns as characters or a vertical striped pattern over the entire screen during PHASE adjustment.)
6) Press or to make the text appear clean across the
screen.
6) Press or to make the text appear without flickering.
TROUBLESHOOTING (continued)
Figure 2 Figure 3
Figure 1