Hitachi VIV-E553LE - Zoom Trace Adjustment; AF Noise Level Adjustment; Auto Focus Adjustment

(1) Zoom Trace Adjustment
Purpose:
To set the out-of-focus correction level during zooming.
Incompleted Phenomenon:
Focus is lost during zooming.
Equipment/Jig:
Color Video Monitor
Backfocus Chart
Test Point:
Video Out (AV OUT)
Condition:
Point at the backfocus chart, 1500 + 5 mm away from the
lens surface.
Light the chart with 200-400 lux.
Caution When Adjustment:
1) Measure the distance between the chart and lens
surface precisely.
2) Place the chart as parallel as possible to the lens
surface.
3) The backfocus chart should always be at the center
of the monitor screen when the zoom is set to the
wide-angle and telephoto ends.
4) The zoom trace adjustment procedure is completed
within 2 minutes after it is selected.
5) Do not place any obstruction between the lens and
chart during adjustment.
Procedure:
1) Refer todisplay 6-1.
2) Press 1 key.
Perform adjustment according to the computer
display hereafter.
See "4. Error Messages" if an error message
appears on the computer display.
Display & Figs
Display 6-1
FIFI II IKI K III IIR IRIS IIIA IIIA IIIS IAI AIK.
AUTO FOCUS ADJUSTMENT
[1] ADJUSTMENT OF ZOOM/
FOCUS TRACKING
[2] ADJUSTMENT OF
AF NOISE LEVEL
[ESC] RETURN TO MENU
Please select [1], [2] or [ESC]
(2) AF Noise Level Adjustment
Purpose:
To set the noise level in the autofocus circuit.
Incompleted Phenomenon:
lt takes time until a subject is brought into focus.
Correct focus is not obtained.
Equipment/Jig:
Color Video Monitor
Test Point:
Video Out (AV OUT)
Condition:
Set the focus to AUTO.
Point at a light box without a chart inserted at a distance
of up to 10cm.
Caution When Adjustment:
1) Place the light box as parallel as possible to the lens
surface.
2) The AF noise level adjustment procedure will be
completed within thirty seconds after it is selected.
Procedure:
1) Refer todisplay 6-1.
2) Press 2 key.
Perform adjustment according to the computer
display hereafter.
See "4. Error Messages" if an error message
appears on the computer display.
E3-9