Sony BVP-550 Operation Manual page 39

4-1 Adjusting the Black Balance and White Balance
During the adjustment, the following messages appear
on the viewfinder screen:
BLACK : OP
-BLACK SET-
The adjustment ends after a few seconds, and the
message "BLACK: OK" appears. The adjustment is
automatically stored in memory.
Notes
• When adjustment of the black balance is already
accurate, it may be omitted to minimize overall
adjustment time.
• During black balance adjustment, the iris is
automatically closed.
• During black balance adjustment, the gain selecting
circuit is automatically activated and so flickering
may occur on the viewfinder screen. This is not a
malfunction.
4-2
Chapter 4 Adjustments and Settings for Recording
If automatic black balance adjustment is not
possible
If the black balance adjustment cannot be completed
normally, an error message will appear for about three
seconds on the viewfinder screen.
The sequence of the
The various error messages that may appear are as
messages is as follows:
follows:
BLACK SET
mBLACK BAL
mCHECK
If one of the above error messages appears, try
adjusting the black balance again. If an error message
still appears, an internal check is necessary.
For details on the internal check, refer to the maintenance
manual.
Black balance adjustment error messages
Error message Meaning
BLACK:NG The lens iris did not close, so
IRIS NOT CLOSED adjustment was impossible.
BLACK: NG Adjustment could not be
R (or G or B): TIME LIMIT completed within the standard
number of attempts.
BLACK:NG The difference between the
R (or G or B): OVERFLOW reference value and the
current value exceeds the
maximum adjustment range,
making adjustment
impossible.
Letter Ver.3.0 3-810-005-11(1)