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5-15
BVP-500
BVP-500P
5-11. VA Gain Adjustment
Setting of Sensitivity and Standard Color Temperature:
• Use the reflective chart (reflection ratio:89.9%) in this
adjustment, if possible.
• If a pattern box is used, it should be well-maintained.
• Set the luminouse intensity of the chart to 2000 lx and
the color temperature to 3200 K.
• This adjustment shall be performed at F7.0 or more.
Note:
• Never change the setting of the following trimmer
capacitors. These capacitors are extremely difficult to
adjust in the field.
VA-163 board :
1
CT200,
1
CT300,
1
CT400
Equipment
: Oscilloscope, Waveform monitor
Object
: Gray scale chart
Preparations:
• MASTER GAIN button/MSU operation panel
→
0 dB
• Extend the VA-163 board with the EX-464 extension
board.
• S650 (MONITOR SELECT)/IF-538 panel
→
VBS
Adjustment Procedures:
1.
Execute the level auto setup.
LEVEL button/MSU operation panel
→
ON (Lights)
START/BREAK button/MSU operation panel
→
ON (Lights)
2.
TEST 2 button/MSU operation panel
→
ON (Lights)
3.
Adjust the auto white balance.
WHITE button/MSU operation panel
→
ON (Lights)
4.
TEST 2 button/MSU operation panel
→
OFF (Goes out)
5.
KNEE OFF button/MSU operation panel
→
OFF (Lights)
6.
Close the lens iris.
7.
Adjust the auto black balance.
BLACK button/MSU operation panel
→
ON (Lights)
8.
Confirm that the black level is 3 IRE for NTSC and
21 mV for PAL at the MONITOR for connector.
If the black level is out of specs, carry out
“5-15. Master Black Adjustment”.
9.
Test Point
: TP72 (GND:TP71)/extension board
(extending VA-163)
Iris of the lens
: A = 125 mV (at F7.0 or more)
(Oscilloscope)
10. S650 (MONITOR SELECT)/IF-538 panel
→
VF.
G button/rear panel
→
ON
11. Adjust the VA gain for G.
Test Point
: MONITOR connector
Adjustment Point
:
1
RV300 (G GAIN)/VA-163
panel
Specifications
: The levels A and B are shall be
equal when the TEST 2 button/
MSU operation panel is turned
on and off.
A = B
(Oscilloscope)
5-11. VA Gain Adjustment
Summary of Contents for BVP-500
Page 14: ...1 6 BVP 500 BVP 500P 1 3 Outside Dimentions 1 3 Outside Dimentions Unit mm ...
Page 22: ...1 14 BVP 500 BVP 500P ...
Page 120: ......