Samsung VP-A50, Service Manual

Page: 50 / 166

Alignment and Adjustment
Samsung Electronics 5-7
5-2-2 Camera System Adjustment
Note : From this point forward, the structure of every adjustment is as follows.
Test point
Step Adjustment Item
1. Mode and input signal/
alignment tape
2. Test point and ADJ. part
3. Result and Remarks
ADJ. part
Note : ÒXX XXÓ indicates variable values.
1. Focus to zoom tracking
1) Camera ÒE-EÓ.
2) Focus chart (Attached to the last page of this
manual) and EVR.
3) Aim the camera at the focus chart, which should be
placed about 30ft. (8 to 10 meters) away and
perpendicular to the center of the lens.
The chart should be placed on a gray or
white wall.
4) Connect monitor TV jack to video(output) jack.
5) Press the ÒF.F (MODE UP)Ó and ÒREW (MODE
DOWN)Ó button, so that the OSD start is
ÒADDR:AB DT1:XX DT:2XXÓ.
6) Press ÒSTOP (CONFIRM)Ó button for full auto
adjustment. The camera will move both zoom and
focus lens. The adjustment is finished when the
DT1 and DT2 become same.
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
positions of the zoom lens.
8M~10M (About 30ft.)
(Be sure to maintain this distance)
LENS CCD
0 : 00 : 00
CONFIRM !
AFDISP
ADDR : 54
DT1 : XX DT2 : XX
B & W
2. P. CLK Adjustment
1) ÒCameraÓ, no signal input.
2) 14.1875M(TP) and EVR.
3) Video(output) jack and EVR.
4) Connent a frequency counter to 14.1875M(TP).
5) Press the ÒF.F(MODE UP)/REW(MODE DOWN)Ó
button so that the OSD state is ÒADDR:07 DT1:XX
DT2:XXÓ.
6) Adjust the ÒPLAY (DATA UP)/STILL (DATA
DOWN)Ó button so that the frequency is
14.1875MHz ± 100Hz.
7) Press the ÒSTOP(CONFIRM)Ó button to memorize
setting.
8) DT1 and DT2 become same.
IC201
CXA2080R
IC101
CXA2002R
2. P.CLK Adjustment
Main PCB (Conductor side)