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Text excerpt from page 220 (click to view)
FILM PROJECTOR UNIT (A846)
24 February, 1999
[A] [D] [B] [E]
9. Set the film strip holder [A] into the film projector unit at the base film setting position. NOTE: Push the film strip holder lightly to confirm that the film strip holder is set correctly. 10. Turn on the test switch [B] on the projector control board and turn on the projector unit main switch [C].
The lamp housing and reflector [D] will become very hot. The lamp cooling fan [E] will start turning suddenly when the lamp housing temperature becomes high. Keep hands away from these components to avoid any injury. 11. Loosen the wing nut [F]. 12. Adjust the position of the projected light by turning the dial [G] with a hexagon wrench [H] until it is at the center of the 4" x 5" frame [I] which is reflected in the mirror unit. 13. Tighten the wing nut [F]. 14. Turn off the projector main switch and the test switch. 15. Reinstall the lamp cover and other covers.