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6-6-7.
Auto-iris Adjustment
Equipment: Waveform monitor (R, G, B)
Test Point: HD SERIAL DIGITAL OUT connector
Object:
Grayscale chart
Preparations
. Setting for MSU-700A
AUTO button (Iris control block) → ON (lit)
KNEE OFF button → OFF (lit)
. Shoot the grayscale chart so that the chart frame is
aligned with the underscanned monitor frame.
Adjustment Procedures
1. Adjust the white balance.
WHITE button/MSU-700A → ON (lit)
2. Adjust APL ratio.
MSU menu operation:
. MAINTENANCE button → ON (lit)
. Touch panel operation
[Lens|Adjusting] → [Auto|Iris]
Adjustment Item: APL Ratio
Specification:
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.
3. Adjust the convergence target of the auto-iris-Adjust-
ment
MSU menu operation:
Adjustment Item: Level
A = 700 ± 7 mV
Specification:
HDC-900/950 MM
6-6-8. Pedestal Level Adjustment
Equipment: Waveform monitor (R, G, B)
Test Point: HD SERIAL DIGITAL OUT connector
Preparations
. Settings for MSU-700A
CLOSE button → ON (lit)
Adjustment Procedures
1. MSU menu operation:
. PAINT button → ON (lit)
. Touch panel operation
Adjustment Item: R, G, B Master
Specification:
A
6-6. Video System Level Adjustment (When using MSU)
(Page 1/3) → [Black]
Adjust the levels A for preferred
level for R, G and B respectively.
In case of all levels for R, G and B
adjust simultaneously, adjust its
using the Master.
(Reference value: A = 21 mV)
A
6-25 (E)
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