THOMSON STUDIO CAMERA LDK 20(S) Technical Manual page 57

Sync./Shading Board
Edge clip level
16. Set edge clip level potentiometers in their mid-position.
Measure at: Adjust with:
VF out R ZR237
VF out G ZR437
VF out B ZR637
Edge gain correction
17. On MCP set:
OPERATE MENU
Gain :
Exposure :
18. Adjust the parabola correction potentiometers.
Measure at: Adjust with:
VF out R ZR239
VF out G ZR439
VF out B ZR639
19. Adjust the edge gain vertical sawtooth potentiometers for a flat vertical shading signal.
Measure at: Adjust with:
VF out R ZR238
VF out G ZR438
VF out B ZR638
20. Repeat steps 29. to 33. until the best result is obtained.
Hor. sawtooth correction (Nom. Exp.)
21. On Sync./Shading Board adjust the horizontal sawtooth potentiometer for no sawtooth information (Exp.
Nom.).
Measure at: Adjust with:
VF out R ZR236
VF out G ZR436
VF out B ZR636
Hor. sawtooth correction (1/1000 Exp.)
22. Set exposure to 1/1000.
23. On Sync./Shading Board adjust the horizontal sawtooth potentiometer for no sawtooth information
(Exp. 1/1000).
Measure at: Adjust with:
VF out R ZR263
VF out G ZR463
VF out B ZR663
Adjustments
Required result:
Mid-position
Mid-position
Mid-position
++
Nom.
Required result:
Flat shading signal
Required result:
Flat vertical
shading signal
Required result:
Flat horizontal
shading signal
Required result:
Flat horizontal
shading signal
Technical Manual LDK 20(S) - Studio Camera 4-31