the pointer mirror about a vertical axis and swings the image left
or right. Rotating the control knob about its own shaft pivots the
pointer mirror about a horizontal axis, thus moving the image up or
A ventilation system consisting of a motor, a fan, and a vacuum
box, provides cooling for the projection lamp, the copy, and the hous-
ing. It also provides a vacuum for holding copy on the copy feeding
unit. The motor and fan are mounted in the undercarriage assembly
and located under the projection lamp.
The projector operates from 115-volt, 60 cycle ac power source. On
the front of the projector are a two-way ON-OFF switch, two fuse
holder mounted fuses, and a male receptacle connector for the power
FUSE, IO AMPS
Figure 9. Schematic diagram.