Autofocus - Hitachi DZ-MV350A Service Manual

Adjustment > Adjustment Procedure

6-4-5 Autofocus

Preparations:
1) Set the backfocus chart as shown in Fig. 6-4-3.
2) Point at backfocus chart 1500mm ± 5 mm away from the
lens surface: Measure the distance precisely.
3) Set the zoom to telephoto end, and make sure that the
center of backfocus chart appears.
4) Perform this adjustment in a spot where sufficient light
is ensured: In a dark place an error screen will appear
and normal adjustment will not be possible.
Procedure:
1) Check AUTO FOCUS on the ADJUST MENU screen.
2) Click the EXECUTE button on ADJUST MENU screen
to start adjustment.
The LENS ADJUSTMENT RETRY dialog may appear
immediately after the adjustment starts: If it does, click
the OK button in dialog. Clicking the OK button will
automatically turn the DVD video camera/recorder off:
After 10 seconds, turn it on again, and then repeat from
step 1).
3) When adjustment is complete, the ADJUSTMENT
FINISHED dialog will appear: Click the OK button in
dialog to restore the ADJUST MENU screen.
Fig. 6-4-3 Backfocus Chart
ADJUST MENU screen
MANUAL ADJUSTMENT PROGRAM for SERVICE STATION
MODEL NAME:
ADJUST MENU
PLEASE SELECT ADJUST
ADJUSTMENT FINISHED dialog
FINISHED
ADJUSTMENT FINISHED.
RETRY
Lens Adjustment Retry.
6 - 25
××××
DATA INITIALIZE
VIDEO LEVEL
BURST LEVEL
SAMPLING PULSE
1
AUTO FUCUS
AUTO IRIS CONTROL
MATRIX
CHROMA GAIN
STABILIZER
SPOT NOISE
LCD
EVF
2
EXECUTE
RETURN
3
OK
OK