May 19
th
, 2021
Supra-5000 Digital Cinema and Secured Media Projection System
Installation Manual
- 82 -
Step 3
: With reference to
; for up-down and rotation adjustment, the
A
or
B
knob screw is
adjusted separately for rotation.
A
and
B
knob screws are adjusted at the same time for up-down
adjustment and the
C
knob screw is adjusted for left-right adjustment.
Figure 65:
Step 4
: Project a grid test pattern. When the Red grid and the Blue grid do not coincide, adjust the
knob screws
A
,
B
or
C
to adjust up/down, rotate and left/right.
NOTE
Please observe caution while adjusting the DMD convergence screws by observing the relative shift
between the Red grid and Blue grid on-screen.
NOTE
If the benchmark is Cyan grid graph, only Red grid graph can be adjusted.
CASE 1
(as shown in
):
The Red grid graph is at the top left of the Cyan grid graph. At this time, the knob screw
C
should
be adjusted counterclockwise to make the Red and Green grids overlap left and right and then
the knobs screw
A
and
B
should be adjusted clockwise at the same time. Attention should be
paid to the consistency of the adjustment range so that Red and Cyan grid patterns overlap up
and down.
After the adjustment is completed, the pixel convergence should be less than 0.5 pixels.