Video Level - Hitachi DZ-MV350A Service Manual

Adjustment > Adjustment Procedure

6-4-2 Video Level

Preparations:
1) Connect the oscilloscope CH1 to video out.
2) Switch the oscilloscope V-MODE to "CH1" and
TRIGGER SOURCE to "CH1".
Procedure:
1) Check VIDEO LEVEL on the ADJUST MENU screen.
2) Click the EXECUTE button on ADJUST MENU screen
to proceed with the VIDEO LEVEL ADJUSTMENT
screen.
3) Click the UP or DOWN button so that level A of the
waveform is 1.0 ± 0.05 Vp-p. Click the button at approx.
2-second intervals while checking any increase or
decrease in level A. (See Fig. 6-4-1)
4) After step 3) is complete, be sure to click the SAVE
button.
Note that clicking the RETURN button will restore the
ADJUST 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 ADJUST MENU screen.
Fig. 6-4-1 Video Level
1.0V
± 0.05Vp-p
6 - 22
ADJUST MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
××××
MODEL NAME:
ADJUST MENU
DATA INITIALIZE
1
VIDEO LEVEL
BURST LEVEL
SAMPLING PULSE
AUTO FUCUS
AUTO IRIS CONTROL
MATRIX
CHROMA GAIN
STABILIZER
SPOT NOISE
LCD
EVF
2
EXECUTE
PLEASE SELECT ADJUST
VIDEO LEVEL ADJUSTMENT screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
VIDEO LEVEL ADJUSTMENT
UP
3
4 SAVE
RETURN
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
5
OK
RETURN
DOWN