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3-3-10. VF SYNC/BLKG Level Adjustment
Equipment:
Oscilloscope
To be extended: ES-12 board
Preparation:
OUTPUT/DL/DCC + switch/camera side
Trigger:
HD (TP84/extension board)
Adjustment Procedure
1. SERVICE menu "PAGE 7"
VF SYNC
→ VF BLKG
Note: For the adjustment procedure, at the first "VF
BLKG" adjustment is done, and next, "VF SYNC"
adjustment is done.
2. Adjust the following items by UP
switch.
Extension board (GND : TP81/ES-12 board)
Item
Test Point
VF BLKG
TP82
VF SYNC
TP82
[for NTSC]
A
B
DXC-D30 (UC)
DXC-D30P (CE)
→ BARS
switch or DOWN
Specification
NTSC : A = 50 ± 10 mV
: A = 50 ± 10 mV
PAL
NTSC : B = 286 ± 10 mV
: B = 300 ± 10 mV
PAL
[for PAL]
A
B
3-3-11. CCD Output Level Adjustment
Note :
• Use a reflection type with chart for this adjustment, therefore,
control the light so that the white area of chart is exactly
3200K of color temperature.
• If use the pattern box, make sure that the color temperature
must be 3200K.
• Usually, this adjustment is not required.
Only when the output level of CCD unit is large different from
the specification.
• When the new CCD unit of spare parts is replaced, this
adjustment is not required because of the correct adjustment
at the factory.
Object:
Grayascale chart
Equipment:
Oscilloscope
To be extended: VA-169 board
Preparation:
• OUTPUT/DL/DCC + switch/camera side → CAM
• WHITE BAL switch : PRESET
• Chart frame = Underscanned monitor frame
• Adjust the lens iris so that the video level at TP27/extension
board (VA-169 board) is 165 ± 5 mV.
Trigger:
HD (TP72/extension board)
Adjustment Procedure
1.
Test point: TP15/extension board (VA-169 board)
1RV1/PA-187 (B) board
Specification : A = 165 ± 5 mV
2.
Test point: TP21/extension board (VA-169 board)
1RV1/PA-189 (R) board
Specification : A = 165 ± 5 mV
RV1
PA-187 (B) BOARD
PA-189 (R) BOARD
3-9
CN2
CN1
CN3
- A SIDE -
- A SIDE -
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