Grass Valley OCP 42 User Manual - Manuel (Page 192)

192 Chapter 3 - OCP 42/OCP 50 Maintenance
Adjustments
B1500M24LA
September 2000
THOMSON OCP 42/OCP 50
User manual
3.2.3 - IRIS potentiometer (OCP 42)
This adjustment is to be made if the calibration operation described in paragraph 2.2 has not
taken place correctly.
Adjustment
• Remove the panel cover, leaving all the connections in place.
• Remove the monocontrol.
• Set the joystick to mid-travel.
• Loosen the iris potentiometer attaching screws.
• Rotate the potentiometer (leaving the joystick at mid-travel) to obtain a voltage of 2 V (± 0.5
V) on the potentiometer cursor.
• Tighten the iris potentiometer attaching screws.
• Fit the cover.