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Adjustments Technical Manual LDK 20(S) - Studio Camera 4-27
Sync./Shading Board
Setting-up
Note: Sync./Shading board must be adjusted in combination with Video Processor 1 Board.
1. Put Sync./Shading Board on a service extender.
2. Put Video Processor 1 Board on a service extender and remove jumpers 7, 9, 11, 13, 17 and 19 from
connector B of the service extender to interrupt the input from the front and jumpers 6, 12 and 15 to interrupt
the black shading correction.
3. Short circuit the input to video processor 1 by connecting the following jumpers on connector B of the service
extender: B7 to B9, B11 to B13, B17 to B19
4. Recall Factory Standard File on MCP or OCP and close iris. On MCP set:
OPERATE MENU Knee : Off
Contour : Off
Gamma sel. : Lin.
Blk. Str. : Off
Filter : Cap
Auto Iris : Off
SETUP 1 MENU Flare : Off
White clip : Off
Sawtooth : Off
SETUP 2 MENU Soft cont. : Off
SETUP 3 MENU Skin cont. : Off
SETUP 4 MENU Asp.Ratio : 4:3
SETUP 5 MENU Matrix sel : 1:1
MAINT. 1 MENU Wh. shading : Off and User level : 4
Black Shading Correction
1. Carry out this adjustment in an ambient temperature of 20°C / 25°C.
2. On Sync./Shading Board set the DC potentiometers ZR265(R), ZR465(G) and ZR665(B) fully clockwise.
3. On Sync./Shading Board set the Edge potentiometers ZR237(R), ZR437(G) and ZR637(B) fully
counterclockwise.
4. On Sync./Shading Board set the Pulse Comp. potentiometers ZR266(R), ZR466(G) and ZR666(B) fully
counterclockwise.
5. On Sync./Shading Board set Horizontal Sawtooth potentiometers ZR236(R), ZR436(G) and ZR636(B) in
their midposition.
6. On Sync./Shading Board adjust the horizontal sawtooth potentiometers for no sawtooth information
(measure on Video Processor 1 Board).
Measure at: Adjust with: Required result:
VP1 Sync./Shad. minimum
X55-12 (R) ZR263 (R) horizontal
X55-6 (G) ZR463 (G) spike
X55-15 (B) ZR663 (B) information
7. Adjust video level equal to blanking DC level.
Measure at: Adjust with: Required result: Correct:
VP1 VP1
X55-12 (R) ZR211 (R)
X55-6 (G) ZR411 (G)
X55-15 (B) ZR611 (B)