Knee And White Clip Adjustment - Sony BVP-500 Maintenance Manual

5-19. Knee and White Clip Adjustment

Equipment : Waveform monitor
Test Point : MONITOR connector
Preparations:
• Connect the waveform monitor to the MONITOR
connector.
• S650 (MONITOR SELECT)/IF-538 panel → VBS
• KNEE OFF button/MSU operation panel → ON (Goes out)
• MASTER GAIN button/MSU operation panel → 9 dB
Adjustment Procedures:
1. Confirm that the black level is 3 IRE for NTSC and 21
mV for PAL.
2. Adjust the auto black balance.
BLACK button/MSU operation panel → ON (Lights)
3. TEST 1 button/MSU operation panel → ON (Lights)
4. Adjust the knee point. Proceed as follows.
MSU menu operation:
• PAINT button → ON (Lights)
• Touch panel operation
∆ → (Page 2/3) → White Clip
→ White Clip Off (Reversed)
(Page 2/3) → Knee Point → Knee Max
Adjustment Item : Master
: A = 98 ±2 IRE (for NTSC)
Specifications
A = 686 ±10 mV (for PAL)
(Waveform Monitor)
BVP-500
BVP-500P
5. Adjust the knee slope. Proceed as follows.
MSU menu operation:
• PAINT button → ON (Lights)
• Touch panel operation
(Page 2/3) → Knee Point
Turn off the knee max. ( Knee Max is not reversed.)
(Page 2/3) → Knee Slope
Adjustment Item : Master
Specifications : B = 109 ±2 IRE (for NTSC)
B = 763 ±10 mV (for PAL)
(Waveform Monitor)
6. MASTER GAIN button/MSU operation panel → 18 dB
7. Adjust the white clip. Proceed as follows.
MSU menu operation:
• PAINT button → ON (Lights)
• Touch panel operation
(Page 2/3) → White clip
Turn on the white clip. ( White Clip Off is not
reveresed.)
Adjustment Item : Master
: C = 109 ±2 IRE (for NTSC)
Specifications
C = 750 ±10 mV (for PAL)
(Waveform Monitor)
5-19. Knee and White Clip Adjustment
5-25