Sony PMW-EX1 Service Manual page 54

3. Black Shading Adjustment
n
All of the Black Shading correction values have been set to
± 0 when shipped from the factory.
(When the Black Shading correction is executed, it results
in height difference of black level at the boundary areas
between the corrected areas). Do not change the Black
Shading correction values to any values other than ± 0
unless it is necessary.
. The Black Shading menu enables the H Saw correction
level adjustment, V Saw correction level adjustment and
parabola correction level adjustment.
. The Black Shading setting menu can be used to turn
Black Shading correction On or Off.
The Black Shading setting is turned On automatically
when the power is turned On.
. The Channel Select menu enables selection of the
channel (G-ch or B-ch or R-ch) to execute the H Saw, H
Para, V Saw, and V Para black shading adjustments on.
. When the Channel Select menu selects any other chan-
nel, the displays of the H Saw, H Para, V Saw, and V
Para setup values are changed to the current setup values
of the channel selected by the Channel Select menu. The
changes are reflected on the H Saw, H Para, V Saw, and
V Para setup values.
. The H Saw menu enables the horizontal Saw black
shading correction (linear increase and decrease) level.
. The H Para menu enables the horizontal Parabola black
shading correction (black level correction at the horizon-
tal center with respect to both ends) level.
. The V Saw menu enables the vertical Saw black shading
correction (linear increase and decrease) level.
. The V Para menu enables the vertical Parabola black
shading correction (black level correction at the vertical
center with respect to both ends) level.
. The Auto BLK Shad menu enables the auto black
shading correction (automatic optimization of the
respective correction values of the black shading correc-
tion).
. When Auto BLK Shad menu is selected, the Execute and
Cancel choices appear.
Selecting Execute starts Auto Black Shading.
3-4
Black shading adjustment method
Preparation
. Connect an HD waveform monitor to the SDI OUT
terminal.
. HD waveform monitor setting: RGB mode
. Lens iris → CLOSE
Adjustment Procedure
. Adjust GAIN and BLK level for easy viewing to ob-
serve.
. Adjust H Saw, H Para, V Saw and V Para for the
respective channels of G-ch, B-ch and R-ch until wave-
form on the waveform monitor becomes flat.
(H SAW)
(H PARA) (V SAW) (V PARA)
PMW-EX1