Sanyo VCC-XZN600P Instruction Manual page 78

You can configure the masking when an extremely bright or dark light source exists in the surveillance
area.
If a single color occupies the image in higher rate, the white balance adjustment may not work properly.
In this case, use the smart auto white balance function by setting [SMART ATW] to "ON".
Although the camera is set to the auto trace white balance (ATW) mode by default, you may choose to set
other adjustment modes.
Set the electronic shutter to the fast mode (SHORT).
Enable the profile compensation function.
Adjust the gamma correction level.
Set the sensitivity in focusing ("LOW" in [SENSITIVITY]).
Compensate the black/white video signal by inserting the color burst signals.
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