Section 10. O P T I O N Installation Instructions; M2502 Shading Corrector - Hamamatsu Photonics c2400 Instruction Manual

10. OPTION INSTALLATION INSTRUCTIONS
10.1 M2502
SHADING
CORRECTOR
The SHADING CORRECTOR option comes completely adjusted and
ready for use.
Installation:
1. Tu r n POWER switch OFF on the Camera Control Unit (CCU).
2. U n p l u g the CCU power supply cord.
3. U s i n g a small Phillips screwdriver, loosen the 4 screws on the sides
of the CCU and remove the cover.
4. Insert the M2502 option card into t h e connector labeled J A
SHADING as illustrated in the figure below.
5. Connect the wire harness with keyed male plug (originating from
the back side of the shading potentiometers) to the corresponding
keyed female plug on the option card.
6. Replace the CCU cover making sure that the air vent is located on
the left and tighten the 4 holding screws.
Adjustment is as follows:
(1) A d j u s t CONTRAST ENHANCEMENT to achieve maximum image
detail.
(2) S e t the SHADING switch to the ON position.
(3) Correct the shading by adjusting the 4 potentiometers on the front
panel of the CCU with a small slotted screwdriver.
The functions of the potentiometers are as follows:
1. H o r i z o n t a l Parabola n
Adjusting horizontal parabola decreases the difference in the in-
tensity between the center and the corners in the horizontal di-
rection. Turning the adjusting screw clockwise results in the hori-
zontal center becoming brighter. Turning the adjusting screw
counterclockwise results in the corners becoming brighter.
2. H o r i z o n t a l Sawtooth
Adjusting horizontal sawtooth decreases the difference in the in-
tensity between the right and left sides of the image. Turning the
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