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4-7. Overall Video Adjustment
4-7-6. Gamma Correction Adjustment
Equipment: Oscilloscope
Preparations
. Setting for MSU-700
KNEE OFF button → OFF (lit)
GAMMA OFF button → ON (dark)
TEST1 button → ON (lit)
. Extend the PR-200 board.
Adjustment Procedures
1. Adjust the master gamma.
MSU menu operation:
. PAINT button → ON (lit)
. Touch panel operation
→ (Page 2/3) → [Gamma]
T
Adjustment Item: Master
Test Point:
TP11/extension board
A = 350 ± 4 mV
Specification:
2. Adjust the white balance.
WHITE button/MSU-700 → ON (lit)
3. Adjust the R gamma.
MSU menu operation:
. PAINT button → ON (lit)
. Touch panel operation
→ (Page 2/3) → [Gamma]
T
Adjustment Item: R
Test Point:
TP17/extension board
A = 350 ± 4 mV
Specification:
4. Adjust the B gamma.
MSU menu operation:
. PAINT button → ON (lit)
. Touch panel operation
→ (Page 2/3) → [Gamma]
T
Adjustment Item: B
Test Point:
TP5/extension board
A = 350 ± 4 mV
Specification:
4-18 (E)
4-7-7. Knee Point . . . . . Knee Slope Adjustment
Equipment: Oscilloscope
Preparations
. Setting for MSU-700
MASTER GAIN → +6 dB
TEST1 button → ON (lit)
KNEE OFF button → ON (dark)
. Extend the PR-200 board.
Adjustment Procedures
1. MSU menu operation:
2. MSU menu operation:
3. Adjust levels for Master, R-ch and B-ch as follows.
A
Master TP11/extension board
R-ch
B-ch
Specification: A = 692 ± 7 mV
4. MSU menu operation:
. PAINT button → ON (lit)
. Touch panel operation
→ (Page 2/3) → [Knee|Slope]
T
. Set Master to +99.
. Touch panel operation
(Page 2/3) → [Knee|Point]
Test Point
TP17/extension board
TP5/extension board
.
Touch panel operation
(Page 2/3) → [Knee|Slope]
Adjustment Item/MSU-700
Master
R
B
A
HDC-750A
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