NEC VT48 Installation Manual
Ceiling mounted and desktop
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Also See for VT48:
- User manual (77 pages) ,
- Installation manual (6 pages) ,
- Specifications (2 pages)
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VT48 Installation Guide
Ceiling Mounted and Desktop
Contents
Product Description, Lens Specs, Notes and Formulas
Diagrams & Distance Charts
Cabinet Dimensions_____________
Ceiling Mount Dimensions
Input Panel and Control Codes
Product Description
Type:
3 panel LCD projector,
0.6" p-Si TFT w/MLA
Resolution:
800 x 600
Lens Specifications
Throw Ratio:
1.8:1 (for 100" diagonal)
Offset Angle:
8.4° - 8.7° (for 100" diagonal)
Screen Sizes:
25" - 300" diagonal (4:3)
Notes
For screen sizes not indicated on the projection tables, use the formulas below.
If the figures on the tables do not match the results of formulas, use the figures in the table.
•
All calculations are based on 4:3 aspect ratio.
•
Distances are in inches, for millimeters multiply by 25.4.
•
Distances may vary ±5%.
Formulas
The Projection Formulas use the image width for calculation. For proper projection placement, determine the image width
for the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the width for "W" in
the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2:
Definitions:
W = Image Width
H = Image Height (size)
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
Projection Formulas:
B = 0.2954W
C = 1.813W-0.919
D = 1.083W
α = tan¯¹ (B/C)
www.visualsystems.com
_________
NEC Solutions (America), Inc.
Visual Systems Division
Pg 1
Pg 2
Pg 3-4
Pg 5
Pg 6
Brightness:
1600 ANSI Lumens
Dimensions:
12.1"(W) x 10.2"(H) x 4.4"(D)
Weight:
6.17 lbs
Focal Length:
22.4 mm
F/#:
1.70
Manual Focus/Electronic Zoom
4:3 Screen Formulas:
W = H x 4/3
H = W x 3/4
Screen Diagonal = W x 5/4
Rev 1.0
VT48
Page 1 of 6
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Table of Contents
Related Manuals for NEC VT48
Summary of Contents for NEC VT48
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Page 1: Product Description
NEC Solutions (America), Inc. Visual Systems Division VT48 Installation Guide Ceiling Mounted and Desktop Rev 1.0 Contents Product Description, Lens Specs, Notes and Formulas Pg 1 Diagrams & Distance Charts Pg 2 Cabinet Dimensions_____________ Pg 3-4 Ceiling Mount Dimensions _________... -
Page 2: Ceiling Mounted
NEC Solutions (America), Inc. Visual Systems Division VT48 Installation Guide Ceiling Mounted and Desktop Rev 1.0 Diagrams and Distance Charts The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation. -
Page 3: Cabinet Dimensions
NEC Solutions (America), Inc. Visual Systems Division VT48 Installation Guide Ceiling Mounted and Desktop Rev 1.0 Cabinet Dimensions The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4. 4.45 Zoom Lever 2.78 Focus lever 2.26... - Page 4 NEC Solutions (America), Inc. Visual Systems Division VT48 Installation Guide Ceiling Mounted and Desktop Rev 1.0 Cabinet Dimensions (continued) The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4. Rear Foot 7.32 Rear Foot 0.63...
- Page 5 NEC Solutions (America), Inc. Visual Systems Division VT48 Installation Guide Ceiling Mounted and Desktop Rev 1.0 Optional Ceiling Mount Dimensions (Model #: VL80CM) The following drawings show the ceiling mount dimensions. Dimensions are in inches. For millimeters multiply by 25.4.
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Page 6: Input Panel
INPUT SELECT S-VIDEO INPUT SELECT DVI (DIGITAL) PICTURE MUTE ON PICTURE MUTE OFF SOUND MUTE ON SOUND MUTE OFF Note: Contact your NEC rep for codes not listed. Cable Connection Communication Protocol: Baud Rate: 38400 bps Data Length: 8 bits...