Hitachi service manual EVF BL DET Check, Waveform of EVF PLL Adjustment

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-MV580E/MV550E: 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.

EVF ADJUSTMENT MENU screen

MANUAL ADJUSTMENT PROGRAM for SERVICE STATION

EVF ADJUSTMENT MENU

EVF ADJUSTMENT MENU

PLL	1
CONTRAST

BRIGHT

WHITE BALANCE

2 EXECUTE RETURN

CONNECTION

PLL ADJUSTMENT screen

MANUAL ADJUSTMENT PROGRAM for SERVICE STATION

PLL ADJUSTMENT

UP DOWN

3

4

SAVE

RETURN

CONNECTION

ADJUSTMENT FINISHED dialog

FINISHED

Fig. 6-4-13 Waveform of EVF PLL Adjustment

ADJUSTMENT FINISHED.

OK 5

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