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Hitachi 42PMA330A Manual

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37
TROUBLESHOOTING (continued)
Actions to Correct Abnormal Displays
Corrections d'affichage anormales RVB 1 seulement
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
Vertical Streaks
Before adjustment.
Some characters are blurred.
After adjustment.
All characters appear
crisp now.
After adjustment.
All characters are
blurred.
1) Press the MENU button. The Main Menu will be displayed.
2) Press the button and Select PC PARAMETERS.
3) Press the ENTER button.
4) Press the SELECT button and select Auto.
5) Press the ENTER button twice to auto configuration.
Adjustment
procedure
When adjustment is not possible with Auto Adjust:
6) Press the MENU button. The Main Menu will be displayed.
7) Press the button and select PC PARAMETERS.
8) Press the ENTER button.
9) Press the SELECT button and select Clock.
10) Press the or buttons and search for clear characters over the entire screen.
11) Perform adjustment for symptom 2 below, when the characters are blurred on the entire screen.
z 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
Before adjustmen
t
After adjustment
Figure 3
Before adjustment
After adjustment
1) Press the MENU button. The Main Menu will be displayed.
2) Press the button and Select PC PARAMETERS.
3) Press the ENTER button.
4) Press the SELECT button and select Auto.
5) Press the ENTER button twice to auto configuration.
When adjustment is not possible with Auto Adjust
6) Press the MENU button. The Main Menu will be displayed.
7) Press the button and select PC PARAMETERS.
8) Press the ENTER button.
9) Press the SELECT button and select PHASE.
(Displays fine patterns as characters or a vertical striped pattern over the entire screen during Clock Phase adjustment.)
Adjustment
procedure
10) Press or buttons to make the text appear clean across the
screen.
10) Press or buttons to make the text appear without
flickering.
ENGLISH
… 37 …


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