3-10
DXC-D30WS/P(E)/V1
3-3-13. Shading Adjustment
Note :
Perform this adjustment when the lens or
CCD unit is replaced.
Object:
White portion of pattern box
Equipment:
Waveform monitor, Oscilloscope
To be extended: VA-185 board
Trigger:
VD (TP73/extension board)
Adjustment Procedure
1. SERVICE menu “PAGE 2”
→
R SHAD:
G SHAD:
B SHAD:
2. Shoot the center portion of pattern box by zooming the
lens to fully TELE position.
3. Adjust the lens iris so that the level “A” is 70
±
2 IRE
(for PAL: 490
±
14 mV) on the VIDEO OUT connector
of camera.
Waveform monitor
4. In the following mode, adjust the UP
4
switch or
DOWN
$
switch so that the waveform of the
oscilloscope becomes flat.
GND: TP38/extension board
Test point
Spec.
Mode
(VA-185 board)
R SHAD
CL101
G SHAD
CL201
B SHAD
CL301
3-3-12. Pedestal Adjustment
Equipment:
Waveform monitor
Test point:
VIDEO OUT/Camera side
Adjustment Procedure
1. SERVICE menu “PAGE 15”
→
MELK ADJ:
2. Close the lens iris.
3. Push down the “W/B” switch on the camera to “BLK”
side.
4. Adjust the pedestal level by UP
4
witch or DOWN
$
switch.
Specification : A = 10
±
1 IRE (for NTSC)
20
±
7 mV (for PAL)
