Picture Too Light Or Too Dark - SENSORVISION PRODUCTS SpeedDome Optima Quick Reference Manual

Picture Too Light or Too Dark

What to check.
1. Iris adjustment at controller.
2. S1 switch pack.
3. Iris control.
4. Video cable.
5. Terminations.
What to do.
Open or close the iris at the controller to suit
or reset the iris to auto function by holding
the iris open and close buttons at the same
time.
Ensure that the settings of the S1 switch
pack on the RS422 board are 3 and 4 (off).
Verify that the iris control is working properly.
If the motor sprocket is jammed, make the
appropriate adjustments to the sprocket. See
page Q-38.
Plug the focus motor into the iris motor jack.
If the camera focuses when you use the iris
control, replace the iris motor. If the camera
does not focus when you use the iris control,
replace the camera/lens board.
If the video cable has been spliced too many
times, it could adversley effect the video
signal.
The dome looses approximately 3db of video
signal for each splice.
The maximum allowable distance for video
cable between a dome and monitor is 305m
(1000').
Ensure that the video lines are properly
terminated.
SENSORVISION SpeedDome
Q-29