Knee Point And Knee Slope Adjustments - Sony HDC-P50 Service Manual

5-4-10. Knee Point and Knee Slope Adjustments

Equipment: Waveform monitor (R, G, B)
Test Point: SDI 1 connector
Preparation
• Setting for the MSU
MASTER GAIN → 6 (6 dB)
TEST 1 button → ON (lit)
KNEE OFF button → ON (unlit)
Procedure
1. Operate the control panel of MSU, and set as follows.
(1) PAINT button → ON (lit)
(2) Touch panel operation: (Page 1) → [Knee] → [Knee Slope]
(3) Set adjustment item [Master] to "–99".
2. Operate the control panel of MSU, and set as follows.
Touch panel operation: (Page 1) → [Knee] → [Knee Point]
3. Adjust the levels A to desired level for R, G and B respectively.
To adjust all levels for R, G and B simultaneously, adjust them using [Master].
• Adjustment item: [R], [G], [B], [Master]
• Reference value: A = 686 mV
4. Operate the control panel of MSU, and set as follows.
Touch panel operation: (Page 1) → [Knee] → [Knee Slope]
5. Adjust the levels B to desired level for R, G and B respectively.
To adjust all levels for R, G and B simultaneously, adjust them using [Master].
• Adjustment item: [R], [G], [B], [Master]
• Reference value: B = 735 mV
6. Store the reference file.
(Refer to "5-4-12. File Store".)
Setting after adjustment
• Setting for the MSU
MASTER GAIN → 0 (0 dB)
TEST 1 button → OFF (unlit)
KNEE OFF button → OFF (lit)
A
B
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