Actions to Correct Abnormal Displays

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.

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).

 

 

 

 

 

 

 

 

 

 

 

 

Display 1

 

 

 

Vertical

Before adjustment

Display 2

 

 

 

 

 

streaks

Some characters

 

 

 

 

 

 

 

 

 

 

are blurred.

 

 

 

 

 

 

 

ABCDEFGHIJ

 

 

ABC

 

 

 

 

 

 

 

abcdefgABCDEFGabcd

 

 

 

 

 

 

 

 

ABCDEFGHIJ

 

 

 

 

 

 

 

 

 

abcdefgABCDEFGabcd

 

 

 

 

 

Example

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ABC

ABC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

After adjustment

After adjustment

 

 

 

 

 

All characters appear

All characters are

 

 

 

 

 

crisp now.

blurred.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Press MENU button to open the adjustment menu.

Press the key of the SELECT button 2 times and select DISPLAY.

Press to open the DISPLAY menu.

Press the key 3 times and select CLOCK.

Adjustment (Adjust the clock by displaying a fine pattern, such as a character string, or vertical streak pattern across the screen.) procedure

Press or to make the text appear

uniform across the screen.

Press or to make the text appear

If the text appears blurred across the screen,

without flickering.

make the adjustment instructed in Symptom 2.

 

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 (display 3).

A fine pattern flickers when displayed on the screen (display 4).

Display 3

Before adjustment

Display 4

 

Before adjustment

ABCDEFGHIJ

ABC

 

abcdefgABCDEFGabcd

 

ABCDEFGHIJ

 

 

 

abcdefgABCDEFGabcd

 

 

Example

 

 

 

After adjustment

After adjustment

 

ABC

 

Press MENU button to open the adjustment menu.

Press the key of the SELECT button 2 times and select DISPLAY.

 

Press

to open the DISPLAY menu.

Adjustment Press the

key 4 times and select PHASE.

procedure

(Adjust the phase by displaying a fine pattern, such as a character string, or vertical streak pattern across the screen.)

 

Press or to make the text appear clean Press or to make the text appear without

across the screen.

flickering.

ENGLISH

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Hitachi CMP307XU manual Display image appears flowing display 2 RGB input, Example, Symptom