Contrast Adjustment - Sanyo PLC-XF70 Service Manual

Optical Adjustment

3. Contrast adjustment

1
Select the internal test pattern signal "All black" from the projector's menu "Menu -> Setting -> Test pattern".
2
A
Loosen 1 screw on the polarized glass mounting base and 1 screw
3
Turn the polarized glass mounting base with lever
formity on the screen.
4
Turn the optical filter(HCP) mounting base with lever
uniformity on the screen.
5
A
Tighten the screws and
Repeat steps 1 to 5 for remaining R and B contrast adjustment.
The adjustment should be taken in order of G-panel, R-panel and B-panel.
B
c
to fix the optical filter and polarized glass mounting base.
A
c
on the optical filter(HCP) mounting base.
to obtain the darkest brightness and proper black color uni-
d
to obtain the darkest brightness and proper black color
B
-58-
D
C