Hitachi CMP307XU - Manual (Page 29)

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ENGLISH
When RGB input is selected, the display screen may not be normal in some cases, depending on the system
devices connected. When this happens, always make the following adjustments.
Actions to Correct Abnormal Displays
■ The display image may be momentarily disturbed during clock adjustment but this is not a failure.
Symptom 1
Text displayed across the screen appears vertically streaked, with some characters blurred (display 1).
The display image appears flowing (display 2) (RGB input).
Example
Display 1 Display 2
Adjustment
procedure
① Press MENU button to open the adjustment menu.
➁ Press the key of the SELECT button 2 times and select DISPLAY.
➂ Press to open the DISPLAY menu.
➃ Press the key 3 times and select CLOCK.
(Adjust the clock by displaying a fine pattern, such as a character string, or vertical streak pattern across the screen.)
➄ Press or to make the text appear
uniform across the screen.
➅ If the text appears blurred across the screen,
make the adjustment instructed in Symptom 2.
➄ Press or to make the text appear
without flickering.
Symptom 2
Text displayed across the screen appears blurred in its entirety (display 3).
A fine pattern flickers when displayed on the screen (display 4).
Example
Display 3 Display 4
Adjustment
procedure
① Press MENU button to open the adjustment menu.
➁ Press the key of the SELECT button 2 times and select DISPLAY.
➂ Press to open the DISPLAY menu.
➃ Press the key 4 times and select PHASE.
(Adjust the phase by displaying a fine pattern, such as a character string, or vertical streak pattern across the screen.)
➄ Press or to make the text appear clean
across the screen.
➄ Press or to make the text appear without
flickering.
ABCDEFGHIJ
abcdefgABCDEFGabcd
ABCDEFGHIJ
abcdefgABCDEFGabcd
Before adjustment
After adjustment
ABC
ABC ABC
Before adjustment
After adjustment
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