Black Balance & White Gate Function - Hitachi HV-F31CL Operation Manual

3. BLACK BALANCE & WHITE GATE function
(1) BLACK BALANCE
Adjust black balance to provide proper color tone at a dark part of video image.
-Manual adjustment-
The pedestal level of R ch and B ch is adjusted independently.
R BLACK
B BLACK
xx: 80h to 7Fh signed
The pedestal level decreases toward 80h and increases toward 7Fh.
-AUTO ADJUST (One Push) (ABB)-
Adjusts standard level for R/B BLACK and independent of R/B BLACK.
Setting value 4020 h
Be sure that a lens iris is completely closed in advance.
(2) WHITE GATE
Square window for detecting white balance appears in the screen. White balance is computed only in the window.
-INDICATE-
The white gate window is selectable visible(ON) or invisible(OFF).
Setting value 20170xF3 h
-ON/OFF-
Setting value 28100xFE h
The video signal of the overall screen is detected for white balance control. The
window is not shown on the screen.
-Manual adjustment-
21
: Setting value 3021xxzz h
: Setting value 3023xxzz h
x: 0- OFF, 4- ON
x: 0- OFF, 1- ON
Window