Auto Iris Control - Hitachi DZ-GX5020A K Service Manual

Adjustment > Adjustment Procedure

6-4-5 Auto Iris Control

Preparation:
Set zoom to wide-angle end, and point at light
box without chart, fi lling the screen.
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
MATRIX
CHROMA GAIN
SPOT NOISE
LCD
2
EXECUTE
CONNECTION
1) Choose AUTO IRIS CONTROL.
2) Click the EXECUTE button to start
adjustment.
The progress status can be confi rmed using
the PROGRESS STATUS dialog.
PROGRESS STATUS dialog
AUTO IRIS CONTROL
PLEASE WAIT A MOMENT
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
3
OK
3) Click the OK button in dialog to restore the
ADJUST MENU screen.
1
RETURN
6 - 27
IRIS ADJUSTMENT ERROR dialog
ERROR
Iris Adjustment Error
OK
If the IRIS ADJUSTMENT ERROR dialog
appears, click the OK button in dialog,
perform the appropriate corrective action,
and then perform readjustment. If the IRIS
ADJUSTMENT ERROR dialog still appears
after the corrective action, the lens unit may
be faulty:
a) Turn the light box off, and then
make sure that no surrounding
light refl ects on glass surface
of light box. If any surrounding light
does refl ect on it, perform adjustment
in a place where no surrounding light
will affect the adjustment.
b) Widen or shorten the distance
between the light box and DVD video
camera/recorder.