Technicolor - Thomson STUDIO CAMERA LDK 20(S) - Manual (Page 33)

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-7
Video Processor 1 Board
Black Offset
6. In the Install/Gain menu set the gain for + to 12dB and for ++ to 30dB (the standard values are 6dB and 12dB).
7. While switching between 0dB gain and 30dB gain, adjust black level during the active line to the same as the
clamp level.
Measure at: Adjust with: Required result: Correct: Incorrect:
X56-14(R) ZR208 (R) 0mV (R)
0%
10
90
100
10mV 10µS
0%
10
90
100
10mV 10µS
X56-8(G) ZR408 (G) 0mV (G)
X56-20(B) ZR608 (B) 0mV (B)
Note:
When the standard file is recalled the black levels are set as follows: Master=50, R=50, G=50, B=50.
Vertical sawtooth offset
8. Adjust for no sawtooth information.
Measure at: Adjust with: Required result: Correct: Incorrect:
MP211 ZR214
0%
10
90
100
50mV 2mS
0%
10
90
100
50mV 2mS
MP411 ZR414
MP611 ZR614
9. In the Install/Gain menu reset the gain for + to 6dB and for ++ to 12dB.
10. On service extender, return jumpers 6, 12 and 15 to their positions.
Horizontal Sawtooth
11. Place Sync./Shading board on extender and minimise the horizontal spike information.
Measure at: Adjust with: Required result: Correct: Incorrect:
VP1 Sync/Shad.
0%
10
90
100
50mV 20µS
0%
10
90
100
50mV 20µS
X55-12 (R) ZR263 (R) No spike
X55-6 (G) ZR463 (G) No spike
X55-15 (B) ZR663 (B) No spike
12. Remove Sync./Shading board from service extender and return it to its position in the camera.