Hitachi DZ-GX20A Service Manual page 137

Adjustment > Adjustment Procedure
(1) LCD PLL
Preparation:
Connect the frequency counter to "LCD-HDO (pin 11)" of
Halcyon connector.
Procedure:
1) Choose PLL on the LCD ADJUSTMENT MENU screen.
2) Click the EXECUTE button on LCD ADJUSTMENT
MENU screen to proceed with the PLL ADJUSTMENT
screen.
Synchronization of the video on LCD monitor screen will
be off at this time, and the image will flow.
3) Click the UP or DOWN button so that the frequency is
15.734 kHz ± 0.1 kHz. Click the button at approx. 2-
second intervals while checking the variation of
frequencies.
4) After step 3) is complete, be sure to click the SAVE
button.
Note that clicking the RETURN button will restore the
LCD ADJUSTMENT MENU screen to the status before
the adjustment was performed.
5) When save is complete, the ADJUSTMENT FINISHED
dialog will appear: Click the OK button in dialog to
restore the LCD ADJUSTMENT MENU screen.
LCD ADJUSTMENT MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
LCD ADJUSTMENT MENU
CONNECTION
PLL ADJUSTMENT screen.
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
PLL ADJUSTMENT
4
CONNECTION
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
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LCD ADJUSTMENT MENU
1
PLL
CONTRAST
BRIGHT
WHITE BALANCE
2
EXECUTE RETURN
UP DOWN
3
SAVE
RETURN
5
OK