5.Attach the Boom Arm, Power Supply, and Projector
a.Hook the boom arm over the top rail on the base plate so that the tab on the arm (see figure 6, inset) is against the rail. Secure the arm at the bottom with the two supplied
Hex Screw
Tab
Hex Screws
and Washers
Phillips
Pan Head Screws
Set Screw
Figure 6. Hook Boom Arm Over Rail and Secure
b.Secure the power supply within the support end of the boom arm. To do this, pass the tie wraps through the holes on one side of the arm and then around the power supply (see figure 7). Tighten the tie wraps. The cables should then be easily and safely routed to the electrical outlet and to the switcher.
RGB
Figure 7. Secure the Power Supply inside the Boom Arm
c.Extend the boom arm to the appropriate projector throw distance and secure in the applicable slots with the four supplied
d.Screw the threaded pipe up into the end of the boom arm. Lock it in place with the supplied set screw (located in the lower hole on the boom arm end.
NOTE: The upper hole on the boom arm end is for attaching an optional seismic/support wire.
e.Run the VGA and composite video cables from the switcher to the projector through the boom arm so that they exit down the projector mounting pipe.
NOTE: Provide sufficient cable slack within the boom arm to allow for future arm length adjustment.
f.Referring to the UPB 25 User Manual, screw the UPB 25 upper mounting plate onto the threaded pipe and attach the projector to the UPB 25 projector bracket.
g.Attach the projector bracket (with projector installed) onto the UPB 25 mounting plate and secure.
h.Connect the output cables from the switcher, any MLC control cables, and the power cable to the projector.
CAUTION: Do not thread the projector power cable through the boom arm or mounting pipe. Threading it through the arm or the pipe violates national electrical regulations.
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