Sony HDW-700A Operation Manual page 78

Note
1)
If the camera has a zoom lens with an automatic iris, the iris may hunt
during the adjustment. To prevent this, adjust the iris gain knob (marked
with IG, IS, or S) on the lens.
For more information, refer to the lens operation manual.
If the automatic white balance adjustment cannot be
made
4
If the white balance adjustment cannot be completed normally, the error
message "AWB:NG" will appear for about 3 seconds on the viewfinder
screen.
If this error message is displayed, retry the white balance adjustment. If
the error message occurs again, an internal check is necessary.
Refer to the Maintenance Manual for information about this internal check.
If you have no time to adjust the white balance
Set the WHITE BAL switch to PRST. The white level is reset to the
value saved in the reference file (factory setting: 3200K). The white
balance is automatically set according to the FILTER selector (outer
knob) position.
White balance memory
Values stored in memory are retained even when the camcorder power is
turned off.
....................................................................................................................................
1) Hunting
Repeated brightening and darkening of an image, resulting from repeated
response to automatic iris control.
4-8
Chapter 4 Adjustments and Settings for Recording