Sony HKC-7080, Installation And Maintenance Manual

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2-2 (E)
HKC-7080
A
10
u
S 50m
B
W
L
A
2-2. VA Gain Adjustment
Equipment: Oscilloscope
Object: Grayscale chart
Preparations
. Extend the VA-158 board.
.
Shoot the grayscale chart which is well-maintained
(reflectance of 89.9%) so that the chart frame is aligned
with the underscanned monitor frame.
(F8, 2000 lx, 3200 K)
.
Settings for MSU-700
CLOSE button
→
OFF (dark)
ECS/SHUTTER ON button
→
OFF (dark)
Adjustment Procedures
1. VA OUT R level adjustment
Test Point: TP17/extension board
Adjustment Point:
1
RV300/VA-158
Specification: A = 400
±
4 mV
2. VA OUT G level adjustment
Test Point: TP11/extension board
Adjustment Point:
1
RV500/VA-158
Specification: A = 400
±
4 mV
3. VA OUT B level adjustment
Test Point: TP5/extension board
Adjustment Point:
1
RV700/VA-158
Specification: A = 400
±
4 mV
Resetting after Adjustment
.
Return the switches to their previous positions.
2-3. White Shading Adjustment
Equipment: Analog waveform monitor
Test Point: TEST OUT connector
Object: Full white pattern
Note
When performing the white shading adjustment, make sure
the following conditions are proper. If not, adjustment can
not be complete.
. White pattern is not uneven.
.
Luminance is correctly adjusted.
.
Iris and zoom control of the lens are correctly adjusted.
Preparations
.
Connect the waveform monitor to the TEST OUT
connector of the unit.
. Setting for MSU-700
KNEE OFF button
→
OFF (lit)
.
Shoot the fully occupied white area of the white pattern
on the underscanned monitor frame.
. Iris of the lens: A = 600
±
20 mV (at F5.6 to F8)
(If a lens aperture is greater than F8, adjust the light
amounts with shutter.)
. Lens Focus:
∞
. Lens Extender/Shrinker: x 2, x 0.8
→
OFF
.
Set the setup menu as follows.
MENU: Operation
PAGE: Battery/D56
ITEM: Lens File
(Select the file in accordance with the lens attached. If
there is no appropriate file, select NO OFFSET, then
change the name of lens with MSU.)
2-2. VA Gain Adjustment
2-3. White Shading Adjustment