22
•
With the viewfinder in Y Monitor mode, adjust the Y offset
level until the right-hand PLuGE chip (+2.5%) of the three
chips visible at the bottom of the test card (Figure 13) is
showing mostly black with some purple noise. As a check,
the peak white chip should be showing a mix of bright
yellow and pale orange
Figure 13 SMTE HD Colour Bars
Y offset adjustment method using a stopped-down lens:
•
With the viewfinder in Y Monitor mode, adjust the Y offset
level until the black portion of the video image is mostly
black with some purple noise
Before adjusting Pb and Pr offsets, restore the viewfinder to
‘Colour’ mode (Section 6.8).
Pb and Pr offset adjustment method:
•
Rotate then press the MENU control to select Pb or Pr
within the Diagnostics Menu. The parameter changes to
inverse text to indicate it is selected
•
Adjust Pb or Pr offset by rotating the MENU control
•
Pb: Rotate the MENU control until the black area is just
neutral, containing no blue or green cast
•
Press the MENU control to accept the Pb setting
•
Pr: Rotate the MENU control until the black area is just
neutral, containing no red or green cast
•
Press the MENU control to accept the Pr setting
