NEC XT5000 - Manual (Page 14)

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2. INSTALLATION
This section describes how to install the lens, set up the projector and
how to connect video and audio sources.
Hook
Fixed pin
Optional Lens Installation
Four optional lenses are available: TL-08SF, TL-1Z, TL-2Z and TL-
4Z.
Preparation
* Turn the projector off, wait for the cooling fan to stop, then turn off
the main power switch on the rear panel.
Check that the projector has cooled off sufficiently before proceed-
ing.
CAUTION
* The projector and lens contain high-precision parts. Do not induce
shock to the projector or the lens.
* Do not touch the lens surface. Doing so can degrade the optical
performance.
Installation Procedures
1. Remove the upper and the lower lens hood.
1) Remove the protective sponge.
2) Remove the two screws. Push down on the lower lens hood
then lift up and pull off the upper lens hood.
3) Lift up the lower lens hood by 1 cm to release the hook. Re-
move the lower lens hood.
2. Attach the lens unit.
1) Remove the lens cap from the rear.
2) Insert the lens so that the three pins on the lens unit are prop-
erly lined up with the holes on the projector.
NOTE: Do not remove the front lens cap during lens installation.
The lens cap helps minimize any marring of the front lens element.