Sony BVP-550 Maintenance Manual page 755

4-3-19. A/D Clock Phase Adjustment
Equipment : Waveform monitor
Test Point : TEST OUT connector
Object : Multiburst chart
Preparations:
• Connect the waveform monitor to the TEST OUT
connector.
• Shoot the multiburst chart so that the chart frame is
aligned with the underscanned monitor frame with the
zoom control.
• Pan so that the 9 MHz portion of the multiburst chart is
positioned at the center of the monitor screen.
• OUTPUT/DCC switch (on the side panel) → CAM/OFF
• 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 : Knee/W.Clip (P6)
: Auto Knee → On
ITEM
Adjustment Procedures:
1. Iris of the lens: A = 90 ± 2 IRE (for NTSC)
A = 630 ± 10 mV (for PAL)
2. Set the menu as follows, and adjust the clock phase for
G by using the MENU SEL switch.
MENU : System config
PAGE : PR/VA/TEST (S3)
ITEM : G Clock
Specifications: Maximize the 9 MHz signal portion.
BVP-550
3. Set the menu as follows, and adjust the clock phase for
R/B by using the MENU SEL switch.
MENU : System config
PAGE : PR/VA/TEST (S3)
ITEM : R/B Clock
Specifications: Minimize the aliasing around the 9
MHz signal portion.
File Store:
Execute the file store. Press the MENU SEL switch to
execute.
MENU : Triming File
PAGE : Triming File (T1)
ITEM : File Store
4-3. Overall Electrical Alignment
4-3-19. A/D Clock Phase Adjustment
4-45 (E)