Gamma Correction Adjustment - Sony HDW-750 Maintenance Manual

9-14. Gamma Correction Adjustment

Preparation
. Lens iris → MAN
. OUTPUT/DCC switch (inside panel) → CAM/ON
. WHITE BAL switch (inside panel) → A
. Shoot a gray-scale chart to fill the entire screen of the
under-scanned picture frame and execute AWB.
Equipment : HD digital waveform monitor
Measurement point : HD SDI connector (outside panel)
Adjustment point : Open the lens iris to obtain the
white level of A = 700 ± 14 mV.
Adjustment Procedure
Equipment : HD digital waveform monitor
Measurement point : HD SDI connector (outside panel)
1. Complete the setting as shown below by using the
setup menu.
MENU : PAINT
PAGE : 01*GAMMA
ITEM : TEST SAW → DIGITAL
Select a horizontal scanning line in the portion B on
the waveform monitor using the LINE SELECT
function.
HDW-750/750CE V1
2. Complete the adjustment as shown below by using the
setup menu.
MENU :
PAGE :
ITEM :
Specifications : Minimize the color difference level at
3. Complete the adjustment as shown below by using the
setup menu.
A
MENU :
PAGE :
ITEM :
Specifications : Minimize the color difference level at
4. Repeat steps 2 and 3 several times until the carrier leak
is removed at "C".
B
9-14. Gamma Correction Adjustment
PAINT
04*GAMMA
R GAMMA
the portion C.
C
PAINT
04*GAMMA
B GAMMA
the portion C.
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