Video Level - Hitachi DZ-GX3300E 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:
ADJUST MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
××××
MODEL NAME:
ADJUST MENU
DATA INITIALIZE
VIDEO LEVEL
BURST LEVEL
AUTO FUCUS
AUTO IRIS CONTROL
SAMPLING PULSE
LINEARITY
MATRIX
CHROMA GAIN
SPOT NOISE
LCD
2
EXECUTE
CONNECTION
1) Choose VIDEO LEVEL.
2) Click the EXECUTE button.
VIDEO LEVEL ADJUSTMENT screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
VIDEO LEVEL ADJUSTMENT
UP
4 SAVE
CONNECTION
3) Click the UP or DOWN button so that level
of waveform is 1.0 ± 0.05 Vp-p. Click the
button at approx. 2-second intervals while
checking any increase or decrease in level of
waveform.
1
RETURN
DOWN
3
RETURN
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.
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
OK
5) Click the OK button in dialog to restore the
ADJUST MENU screen.
6 - 24
1.0V
± 0.05Vp-p
Fig. 6-4-1
5