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14 C3428M-A (1/08)
SW4-4: Flickerless
In certain lighting conditions, a flicker in the light source may affect camera operation. Flickering can be
caused by a number of conditions, including the quality of the source power and the age and type of
fluorescent bulbs and ballasts.
Set SW4-4 to enable flickerless operation. The camera removes the effects of flickering and the shutter
speed is set to 1/120 (NTSC) or 1/100 (PAL).
Set SW4-4 to disable flickerless operation. This is the default setting.
NOTE: If you enable flickerless operation, you should use AC line lock for best results.
SW4-5: Auto White Balance/Manual White Balance
Auto white balance (AWB) is enabled by default (OFF).
To manually set and lock the white balance:
1. Set SW4-5 to OFF.
2. Hold a white background in front of the lens until the video is all white.
3. While holding the background in place, set SW4-5 to ON. A blue blinking block appears on the video
image for a few seconds. When the block changes to solid green, the manual white balance (MWB)
process is complete.
SW4-6: Reserved
Do not change SW4-6 from its factory setting. SW4-6 must be set to OFF for Varifocal models; it must be
set to ON for fixed iris lenses.
AUTO IRIS LEVEL ADJUSTMENT
To adjust the auto iris DC drive level (refer to Figure 10 on page 13):
1. Tilt or rotate the camera module until you can access the auto iris level control (R19).
2. Turn the screw clockwise to increase the brightness level or counterclockwise to decrease the
brightness level.
VERTICAL PHASE ADJUSTMENT
NOTE: Use this procedure for 24 VAC operation only.
When using more than one camera power supply, a brief vertical roll may occur on the monitor when
switching from one camera to another.
To eliminate vertical roll, reverse the 24 VAC connections on one camera. If both cameras are connected to
the same transformer, this should solve the problem. If the problem continues, adjust the phase control by
synchronizing, or line locking, the cameras to one another.
NOTE: When adjusting vertical phase, line sync (SW4-3) must be set to OFF for AC line lock.