The Nec Vt470 And Vt670 Projectors - Smart Technologies 2000i-DVX Installation Manual

The NEC VT470 and VT670 Projectors

CAUTION Do not move the ring that surrounds the short-throw, customized projector lenses,
even though the NEC VT470/570/670 User's Manual states that you should use
this ring to obtain the best focus. You must disregard this information. If you move
the ring, you may cause the lenses to separate.
Instead, use the Zoom lever on the projector, which has been modified to adjust the
image focus. Again, contrary to the NEC VT470/570/670 User's Manual, the Zoom
lever will not adjust the image size on the screen.
Two NEC projectors are featured in the 2000i line of rear projection cabinets: an NEC VT470
projector in the 2000i-DVS, and an NEC VT670 projector in the 2000i-DVX. The two projectors
have different lenses and differ in brightness and native resolution: the VT470 projector has SVGA
resolution (800 × 600) and a 2,000 lumens lamp, and the VT670 projector features XGA resolution
(1024 × 768) and a 2,100 lumens lamp. In every other respect, the two projectors are identical.
The NEC VT470/VT670 projector is secured upside-down on the projector platform. The projector
is adapted for use in the 2000i, and its behavior differs in two significant ways from the description
in the NEC VT470/570/670 User's Manual:
• The Zoom lever does not change the size of the projected image. Instead, it adjusts image
focus.
• The ring no longer adjusts focus, and you should not move it under any circumstances.
Moving this ring may cause the lenses to separate.
Adjust focus with this lever
Do not move this ring!
Do not move this ring!
NOTE: See page 21 for information on adjusting the projected image.
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Bottom View (Upside-Down)
Side View
About the 2000i