Camera System Adjustment; Focus To Zoom Tracking - Samsung VP-A12 Service Manual

Alignment and adjustment

5-2-2 Camera System Adjustment

Note : From now on, the structure of every adjustment is as follows.
Step Adjustment Item
1) Mode and input signal/
alignment tape
2) Test point and ADJ. part
3) And after Result and Remarks

1. Focus to zoom tracking

Note : To maintain proper focus throughout the
zoom range, the focus lens position must be
changed as the zoom lens is moved.
During this adjustment the microprocessor
will measure the focus positioning
requirements at the wide and telephoto
position of the zoom lens.
1) Camera ÒE-EÓ.
2) Focus chart (Attached on the last page of this
manual) and EVR.
3) Aim the camera at the focus chart placed about
30ft. (8 to 10 meters) away and perpendicular to
the center of the lens.
The chart should be placed on the flat, gray or
white wall.
4) Connect monitor TV jack to video output jack.
5) Press the ÒSTILL (MODE UP)Ó and ÒDISPLAY
(MODE DOWN)Ó button, so that the
OSD start is ÒE4 LENSA XX XXÓ.
6) Focus adjustment (There are 2 ways to do the
adjustment.)
a. Full auto : Press ÒSTART/STOP (CONFIRM)Ó
button for full auto adjustment.
The camera will move both zoom and
focus lens. The adjustment is finished
when the O.K! message appears on the
TV screen.
8M~10M(About 30ft)
(Be sure to maintain the distance.)
5-8
Note : The on-screen display information.
ÒXX XXÓ means arbitrary value.
It can be different number depend on the conditions.
b. Manual : Camera lens will be moved to all
b-1. Press the ÒTELEÓ button to instruct the
b-2. Press the ÒSTART/STOP (CONFIRM)Ó button.
b-3. After the zoom lens reaches the tele zoom
b-4. Press the ÒSTART/STOP (CONFIRM)Ó button.
b-5. After the zoom lens reaches the middle zoom
b-7. Press ÒSTART/STOP (CONFIRM)Ó button.
b-8. Press ÒSTART/STOP (CONFIRM)Ó button to
LENS
CCD
E2 HALLA
positions to set maximum focus setting.
microprocessor to adjust the focus lens for
optimum focus.
The zoom lens should move to the tele zoom
position.
position, repeat step b-1.
The zoom lens should move the the middle zoom
position.
position, if focus state is not the optimum focus
state, repeat step b-1, b-2, b-3 and b-4.
The zoom lens should move to the wide zoom
position, try to step b-1.
instruct the microprocessor to write the focus
lens positon data to the EEPROM.
The lens will move through the zoom range and
the picture will fade out and then back in.
The OSD will display ÒOK!Ó.
XX XX
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