INSTALLATION & SETUP

Lens Mounting Plate

Top/Bottom

Focus Adjust

Left/Right

Focus Adjust

Factory/Service

Adjust Only

Blue Green Red

Figure 2-22b. MP-8 Lens Assemblies - Front View

For the MP-9, each CRT is attached to its lens by socket head allen screws located at each lens mounting plate. For each lens, the upper left screws (when facing the lens) adjust the focus between the left and right sides of the picture, and the upper right screws adjust the focus between the top and bottom of the picture. Use the supplied ball nose screw driver for these adjustments.

For the MP-8, each CRT is attached to its lens by 3 socket head allen screws located at each lens mounting plate. For each lens, the upper right screw (when facing the lens) adjusts the focus between the top and bottom of the picture, and the lower left screw adjusts the focus between the left and right sides of the picture. See Figure 2-22b.

Step 3 Loosen the rear wing nut on the green lens. Rotate the lens using the wing nut until the picture is focused in the center. Tighten the rear wing nut.

B G R

Step 4 Loosen the front wing nut on the green lens. Rotate the front lens barrel until the picture is focused in the corners. Tighten the front wing nut.

B

G

R

Step 5 Steps 6 to 8 require that you look directly into the lenses for adjustment. Before you continue, press to reduce contrast to a low level (less than 10%).

WARNING: DO NOT LOOK INTO THE LENSES IF CONTRAST IS SET TO NORMAL VIEWING LEVEL.

Step 6 Look directly into the red lens. Press , , or to center the displayed crosshatch on the face of the picture tube.

2.20

Page 26
Image 26
Madrigal Imaging MP-8, MP-9 manual 22b. MP-8 Lens Assemblies Front View