Ricoh A172 Service Manual page 138

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[C]
3) Insert the film strip holder [A] into the film projector unit at the base film
setting position.
NOTE: Push the film strip holder gently to confirm that the film strip
holder has been inserted correctly.
4) Turn on the test switch [B] on the projector control board and turn on
the projector unit main switch [C].
+
CAUTION
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 those components
to avoid any injury.
5) Loosen the wing nut [F].
6) 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.
7) Tighten the wing nut [F].
8) Turn off the projector main switch and the test switch.
9) Reinstall the lamp cover and other covers.
SM
[I]
[A]
[D]
[F]
[G]
3-49
[B]
[E]
[H]
A172/A199

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