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3. Start with the display unit in the
center of the bottom row. This
will be the Base Unit. Align the
Base Unit's adapter plate. (If the
bottom row has an even number of
display units, choose either middle
one. This step can be done before
the wall is built, if necessary.)
4. Working along the bottom row
in both directions, align each of
the adapter plates, using the
Alignment Tool.
WN-5220-S VideoWall User's Guide
F.
Check that all displays in the video wall are
locked together. And straight.
A.
Look at the sides of the Adapter Frame. (See
Figure 3, below.) Starting at the top edge and
moving down you will see a large Locking Screw,
a pointed Alignment Bolt, and an Alignment Hole.
Near the middle of each side is a threaded hole
for the Alignment Tool's spring-loaded screws.
(Do not attach the Alignment Tool yet.) At the
bottom of the side notice the Alignment Hole, the
Alignment Bolt, and the Locking Screw.
B.
Look at all the Alignment Bolts of all units. They
should all be the same distance out. The factory
nd
standard is 3/32
of an inch, measured to the
base of the hex nut, or three full revolutions of the
bolt from when it is completely down against the
frame.
C. Check to see that the Adapter Frame of the Base
Unit is centered on the chassis. If the frame is not
centered on the chassis opening, for instance, if it
is offset to the left, then all the other frames will
have to be offset in this same direction. It is best if
this first frame is nicely centered on its chassis
opening.
D. Check to see that all the Locking Screws are
tight.
E.
Measure the opening diagonally, from corner to
corner in both directions, and compare the
results. Be sure to measure from exactly the
same points each time. An accuracy of 1/32
inch (0.8 mm) is necessary for most applications,
but the more accurately you can do this,
particularly in the bottom center unit, the better
the video wall will be aligned and the better the
picture will look.
F.
If the two measurements are the same, you have
a rectangle with perfectly square corners,
and you may go on to Step 4.
G. If the two measurements are not the same, within
nd
1/32
inch (0.8 mm), the frame is not a rectangle
with perfectly square corners, it is a
parallelogram.
Screws on each side. Move the adapter plate left
or right a bit and tighten the screws. Measure the
diagonals again. Repeat this process until you are
satisfied that the two diagonals are the same.
This means the adapter plate is a perfect
rectangle with square corners.
A.
Now that the center unit adapter plate is squared,
align one of its neighbors in the bottom row.
nd
Loosen the top Locking
17
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