Detail Frequency Adjustment - Sony BVP-550 Maintenance Manual

4-2-11. Detail Frequency 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.
• RGB/ENC switch (on the side panel) → ENC
• Set the DISP switch (on the side panel) to MENU while
holding down the MENU SEL switch (on the front
panel). Set the menu as follows.
MENU : Paint
PAGE : Detail 2 (P3)
: Detail → On
ITEM
PAGE : Knee/W.Clip (P6)
: Knee → Off
ITEM
Adjustment Procedures:
1. Iris of the lens: A = 90 ±2 IRE (for NTSC)
A = 630 ±14 mV (for PAL)
(Waveform Monitor)
BVP-550
2. Make a selection of line at the center white portion of
the grayscale chart.
3. Set the menu as follows, and adjust the detail frequen-
cy by using the MENU SEL switch.
MENU : Paint
PAGE : Detail 2 (P3)
ITEM : Frequency
Specifications: Adjust the edge width at each end of
the center white portion to the
desired width.
(Waveform Monitor)
Note:
After this adjustment is completed, be sure to perform "4-
2-12. H/V Ratio Adjustment" and "4-2-13. Detail Level
Adjustment".
4-2. Adjustment for Installation of OHB
4-2-11. Detail Frequency Adjustment
Line Select
4-15 (E)