Sony HDW-750CE Operation Manual page 123

During adjustment, the following message is displayed on the viewfinder
screen.
The black balance adjustment ends in a few seconds with the message
"BLACK:OK" and the adjustment setting is automatically stored in
memory.
Notes
• During the black balance adjustment, the iris is automatically closed.
• During the black balance adjustment, the gain selection circuit is
automatically activated so you may see flickering on the viewfinder
screen, but this is not a fault.
....................................................................................................................................
1) If the existing black balance adjustment is satisfactory, the message "BLACK
BAL" may not appear, that is, the automatic black balance adjustment may be
omitted to save time.
Chapter 4 Adjustments and Settings for Recording
The messages change in
the following sequence : -
BLACK SET-
1)
-BLACK BAL- -
CHECK-
4
4-3