Crispening Adjustment - Sony BVP-550 Maintenance Manual

(Waveform Monitor)
3. Set the GAIN switch (on the side panel) → H (18 dB).
4. White Clip Adjustment
Set the menu as follows, and adjust the level by
turning the MENU SEL switch.
MENU : Paint
PAGE : Knee/W.Clip (P6)
ITEM : White Clip On/Off→On
Adjustment Point:
ITEM : White Clip
Specifications: C = 109 ±2 IRE (for NTSC)
C = 750 ±10 mV (for PAL)
(Waveform Monitor)
5. Set the menu as follows.
MENU : Paint
PAGE : Knee/W.Clip (P6)
ITEM : Test→Off
ITEM : Knee→Off
6. Set the GAIN switch (on the side panel) → L (0 dB).
Note:
The values used in the above adjustments are under the
conditions that the white clip level is set to 109 IRE (for
NTSC) or 763 mV (for PAL).
When the white clip level is set to other value than 109
IRE or 763 mV, use the following table to set the levels of
the knee point and knee slope.
109/763 107/749
Knee point 98/686
Knee slope 109/763 107/750
White clip 109/763 107/749
BVP-550
BVP-550P
White Clip Level (Unit: IRE/mV)
105/735 103/721
98/686 96/672 96/672
107/750 107/750
105/735 103/721

4-2-9. Crispening Adjustment

Note:
• Perform this adjustment on the customer's preferences, if
necessary.
Equipment : Waveform monitor
Test point : TEST OUT connector
Object
: Grayscale chart
Preparations:
Connect the waveform monitor to the TEST OUT connector.
Shoot the grayscale chart so that the chart frame is aligned
with the underscanned monitor frame.
(Waveform Monitor)
Set the menu as follows.
MENU : Paint
PAGE : Knee/W.Clip (P6)
ITEM : Knee→OFF
RGB/ENC switch (on the side panel) → ENC
Adjust the iris control of the lens to satisfy the white level A.
A = 100 ±2 IRE (for NTSC)
A = 700 ±14 mV (for PAL)
(Waveform Monitor)
Adjustment procedures
1. Adjust the iris control of the lens to satisfy the white
level A under the grayscale chart shooting.
Specifications: A = 100 ±2 IRE (for NTSC)
A = 700 ±14 mV (for PAL)
2. Set the DISP switch (on the side panel) to MENU.
3. Set the menu as follows, and adjust the crispening by
turning the MENU SEL switch.
MENU : Paint
PAGE : Detail 1(P2)
ITEM : Crispening
Turn the MENU SEL switch (on the front panel) once
to –99, and turn slowly for increment until the noise at
the black level of the waveform is just decreased, or
turn the MENU SEL switch so that the crispening
level is an appropriate value.
4-2. Adjustment for Installation of OHB
4-13 (E)