Auto-Iris Adjustment - Sony Digital HDVS HDC-900 Maintenance Manual

Hd color camera, hd ccd block adaptor
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6-5. Video System Level Adjustment (When using the Setup Menu)
3. Adjust the white limiter.
Adjustment item:
MENU:
PAINT
PAGE:
DETAIL 1
ITEM:
LIMITER WHT
Specification:
Adjust the edges at portion B for the
desired clip level.
4. Adjust the black limiter.
Adjustment item:
MENU:
PAINT
PAGE:
DETAIL 1
ITEM:
LIMITER BLK
Specification:
Adjust the edges at portion C for the
desired clip level.
6-16 (E)
6-5-7.
Equipment: Waveform monitor (R, G, B)
Test Point: HD SERIAL DIGITAL OUT connector
Object:
Preparations
. Iris of the lens → AUTO
Menu setting:
MENU:
B
PAGE:
ITEM:
. Shoot the grayscale chart so that the chart frame is
aligned with the underscanned monitor frame.
Adjustment Procedures
1. Adjust the white balance.
AUTO W/B BAL switch (front panel) → WHT
2. Adjust APL ratio.
Adjustment item:
MENU:
PAGE:
ITEM:
Specification:
C
3. Adjust the convergence target of the auto-iris-Adjust-
ment.
Adjustment item:
MENU:
PAGE:
ITEM:
Specification:

Auto-iris Adjustment

Grayscale chart
PAINT
SW STATUS
KNEE → OFF
MAINTENANCE
AUTO IRIS
APL RATIO
Adjust to determine if the feedback
is to be applied according to the
peak luminance of the object or the
average luminance. The higher you
set the value, the feedback depends
more on the average luminance.
MAINTENANCE
AUTO IRIS
IRIS LEVEL
A = 700 ± 7 mV
A
HDC-900/950 MM

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