Hitachi DZ-MV580A Service Manual page 127

Adjustment > Adjustment Procedure
(1) EVF BL DET Check
Note:
Be sure to take note of the resulting value of this check because the check value will be needed
when EVF adjustment is completed.
There are two types of EVF unit mounted in these DZ-MV580A/MV550A:
The backlight characteristics of the two types are different.
This check item identifies the type of EVF unit mounted (replaced).
Procedure:
1) Connect the digital voltmeter to "BL-DET (pin 12)" of Skylark Connection jig.
2) Check whether the reading on digital voltmeter is 5 V or 0 V., and take note of the value.
(2) EVF PLL
Preparations:
1) Connect oscilloscope CH-1 to EVF-RPD (pin 8) of the
Skylark connection jig.
2) Switch the oscilloscope V-MODE to "CH1" and
TRIGGER SOURCE to "CH1"
Procedure:
1) Choose "PLL" on the EVF ADJUSTMENT MENU
screen.
2) Click the EXECUTE button on EVF ADJUSTMENT
MENU screen to proceed with the PLL ADJUSTMENT
screen.
3) Click the UP or DOWN button to flatten the waveform:
Click the button at intervals of approx. 2 seconds while
observing the movement of waveform.
4) After step 3) is complete, be sure to click the SAVE
button.
Note that clicking the RETURN button will restore the
EVF 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 EVF ADJUSTMENT MENU screen.
Fig. 6-4-13 Waveform of EVF PLL Adjustment
EVF ADJUSTMENT MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
EVF ADJUSTMENT MENU
CONNECTION
PLL ADJUSTMENT screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
PLL ADJUSTMENT
4
CONNECTION
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
6 - 40
EVF ADJUSTMENT MENU
1
PLL
CONTRAST
BRIGHT
WHITE BALANCE
2
EXECUTE RETURN
UP DOWN
3
SAVE
RETURN
5
OK