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focus” spring, the following procedure must be completed. This
procedure must be completed as part of the system mechanical
focus procedure. See the figure above.
a. Turn on the projector, project a cross-hatch pattern on the
screen. Cover up both the Blue and Red lenses. Work only on
the Green lens.
b. Tighten all 4 lens mounting screws.
c. Loosen all 4 lens mounting screws 3 full turns.
d. Adjust the mechanical and electrical focus to get the best
image possible in the center of the picture.
e. Loosen the lens focus adjustment knob. Fully extend the lens
barrel. Adjust mechanical focus while observing the center
horizontal line. Adjust until one side (left or right) comes
sharply into focus. Adjust the two screws opposite the side
that is in focus (i.e., if the left side of the center horizontal
line is in focus, adjust the two screws on the right side of the
lens). Turn each screw 1/4 - 1/2 turn at-a-time in the same
direction (in or out) while observing the focus of the center
horizontal line. If the sharp focus begins to move towards the
center of the image, you are going in the wrong direction (in or
out). Adjust in the correct direction until the entire line
achieves a uniform soft focus from left to right. You should
then be able to adjust the barrel focus to get the center
horizontal line sharp all the way across. If not, you can fine
adjust with this same procedure.
f. Loosen the lens focus adjustment knob. Fully extend the lens
barrel. Adjust mechanical focus while observing the center
vertical line. Adjust until one side (top or bottom) comes
sharply into focus. Adjust the two screws opposite the side
that is in focus (i.e., if the bottom of the center vertical
line is in focus, adjust the two screws on the top of the
lens). Turn each screw 1/4 - 1/2 turn at a time in the same
direction (in or out) while observing the focus of the center
vertical line. If the sharp focus begins to move towards the
center of the image, you are going in the wrong direction (in or
out). Adjust in the correct direction until the entire line
achieves a uniform soft focus from top to bottom. You should
then be able to adjust the barrel focus to get the entire image
sharp all the way across (top to bottom and left to right). If
not, you can fine adjust with this same procedure.
Note: Throughout this procedure pay no attention to the
corners of the image.
g. Adjust the focus mechanically and electrically to get the
best overall image.
h. Cover the Green lens and uncover the Red lens.
i. Repeat step “b” - “g” for Red.
j. Cover the Red lens and uncover the Blue lens.
k. Repeat steps “b” - “g” for Blue.
l. Re-install PRO895X top cover.
m. Turn off the sync forced mode 9 and return to normal video
viewing or sync forced mode 11.
4. Rough Geometry/Convergence Setup of Green
When aligning Green, some controls are enabled in Geometry only.
This is why the alignment starts by using Green in the geometry
mode of setup.
a. Using the setup remote control, press “SETUP” and “RED”.
This will put the system into the “GEOMETRY MODE”.
b. Using the setup remote control press “RED MUTE” and
“BLUE MUTE”. You should see only the Green video.
c. Roughly set up the shape of the Green display using the
appropriate Skew, Bow, Key, etc. controls. Adjust size, or
phase using the customer’s video signal. Refer to pages 25,
26, and 27 for the convergence remote control and
procedure notes.
5. Rough Geometry/Convergence of Red and Blue
a. Using the remote control, return to the SETUP Mode and
select the internal cross-hatch pattern.
b. Press “RED” and mute the Blue video.
c. Using the “Point Angle” adjustment screws, align the Red
center point horizontally with the Green center point.
d. Using DC vertical center, align the horizontal center line of
the Red pattern to the horizontal center line of the Green
pattern.
e. Adjust Red “Size” and “Lin T/B - L/R “ to roughly match
the Green pattern size. Refer to pages 25, 26, and 27.
f. Roughly set up the shape of the Red display using the
appropriate Skew, Bow, Key, etc. controls. Refer to
pages 25, 26, and 27.
g. Press “BLUE” and mute the Red video.
h. Using the “Point Angle” adjustment screws, align the Red
center point horizontally with the Green center point.
i. Using DC vertical center, align the horizontal center line of
the Blue pattern to the horizontal center line of the Green
pattern.
j. Adjust Blue “Size” and “Lin T/B - L/R “ to roughly match
the Green pattern size. Refer to pages 25, 26, and 27.
k. Roughly set up the shape of the blue display using the
appropriate Skew, Bow, Key, etc. controls. Refer to pages 25,
26, and 27.
l. Press “QUIT” and “ADJ TOGGLE” to store the adjustments.
Continued on next page
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SYSTEM ALIGNMENT