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Adjustments Technical Manual LDK 20(S) - Studio Camera 4-57
Pre-Processor Board
Gain Adjustment
1. Recall Factory Standard File on MCP or OCP.
On MCP set:
OPERATE MENU
Knee : Off
Auto Iris : Off
Matrixsel. : 1:1
SETUP 1 MENU
Wh. Limiter : Off
Gamma : Lin.
SETUP 4 MENU
Asp. ratio : 4:3
2. Set the lighting conditions for 100% video output as follows:
Colour temp. : 3200K
Illumination : 2000lux
Lens aperture : F8
Scene reflection : Reference white 90% (Minolta reference white tile)
(2000 Lux with 90% reflectance is 573 cd/m
2
)
3. Open the right side cover of the camera.
4. Remove adjustment hatch on right side of front module of the camera.
5. Place Video Miscellaneous Board on a service extender
6. Open Iris at the lens to obtain 700mV at X17A point 19 of Video Miscellaneous Board (Green)
Measure at: Adjust with: Required result: Correct: Incorrect:
Vid.Misc. Pre-Proc.
X17A-23 (B) ZR522 700mV
X17A-27 (R) ZR122 700mV
7. Replace adjustment hatch on right side of front module of the camera.
8. Return Video Miscellaneous Board to its position in the camera.
9. Close camera right side cover.
10. Recall Factory Standard File on MCP or OCP.