Technicolor - Thomson STUDIO CAMERA LDK 20(S) - Manual (Page 55)

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-29
Sync./Shading Board
8. On connector B of the service extender remove the short circuits on the input to Video Processor 1 Board
by disconnecting the jumpers from B7 to B9, B11 to B13 and B17 to B19,
Reconnect
A6 to B6
A7 to B7
A9 to B9
A11 to B11
A12 to B12
A13 to B13
A15 to B15
A17 to B17
A19 to B19 on connector B of the service extender.
Dummy offset adjustment
9. On Video Processor 1 Board adjust video level equal to blanking DC level.
Measure at: Adjust with: Required result: Correct:
VP1 VP1
X55-12 (R) ZR211 Dummy offset
X55-6 (G) ZR411
X55-15 (B) ZR611
DC level adjustment at 45 o C
10. The following adjustment is temperature sensitive.
If an oven is used to adjust at 45°C (the recommended adjustment temperature) ensure that the temperature
does not rise above 45°C as this will damage the camera.
11. On Sync./Shading Board adjust the DC level potentiometer.
Measure at: Adjust with: Required result:
MP209 (R) ZR265 -250mVdc at 45°C
MP409 (G) ZR465 -250mVdc at 45°C
MP609 (B) ZR665 -250mVdc at 45°C
12. Remove camera from oven and carry out the following adjustments while the camera is cooling down.
Pulse compensation
13. In the Install/Gain menu set the gain for + to 12dB and for ++ to 30dB
14. On MCP set:
OPERATE MENU Gamma : 1
Gain : Max gain
15. While switching between Nom. and 1\1000 exposure time on MCP or OCP adjust for no difference between
in set-up levels (make the adjustment when the switch is in the Nom. position).
Measure at: Adjust with: Required result:
VF out R ZR266 No difference in
VF out G ZR466 set-up level
VF out B ZR666