NEC VT491 Installation Manual
Nec projector installation guide
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Also See for VT491:
- Technical specifications (2 pages) ,
- User manual (79 pages) ,
- Specifications (2 pages)
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VT491/590/595 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:
VT491:
VT590/VT595:
Dimensions:
12.1" (W) x 4.4" (H) x 10.2" (D)
Power Consumption: 255W (max)
Lens Specifications
Throw Ratio:
1.5 – 1.8:1 (for 100" diagonal)
Offset Angle:
8.3° - 10.0° (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 = 0.266W
C (wide) = 1.525W – 1.176
C (tele) = 1.828W – 1.173
D = 0.108W
α (wide) = tan¯¹ (B/C(wide))
α (tele) = tan¯¹ (B/C(tele))
www.necdisplay.com
Pg 1
Pg 2
Pg 3-4
Pg 5
Pg 6
Brightness:
800 x 600
1024x768
Fan Noise:
Weight:
BTU's:
Focal Length:
F/#:
Manual Focus/Manual Zoom
4:3 Screen Formulas:
W = H x 4/3
H = W x 3/4
Screen Diagonal = W x 5/4
NEC Display Solutions of America, Inc.
VT491:
2000 ANSI Lumens
VT590/VT595:
2000 ANSI Lumens
34 dB / 29dB @ 1 meter
6.17 lbs
870 BTU/hour
18.9mm – 22.7mm
1.7 - 2.07
VT491/590/595
Rev 1.3
Page 1 of 6
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Table of Contents
Related Manuals for NEC VT491
Summary of Contents for NEC VT491
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Page 1: Product Description
C (wide) = 1.525W – 1.176 C (tele) = 1.828W – 1.173 D = 0.108W α (wide) = tan¯¹ (B/C(wide)) α (tele) = tan¯¹ (B/C(tele)) www.necdisplay.com NEC Display Solutions of America, Inc. Pg 1 Pg 2 Pg 3-4 Pg 5 Pg 6... -
Page 2: Ceiling Mounted
VT491/590/595 Installation Guide Ceiling Mounted and Desktop 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. Distances are in inches. For millimeters multiply by 25.4. -
Page 3: Cabinet Dimensions
VT491/590/595 Installation Guide Ceiling Mounted and Desktop Cabinet Dimensions The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4. 4.45 2.26 www.necdisplay.com NEC Display Solutions of America, Inc. ON/STAND ADJ. AUTO SOURCE POWER STATUS SELECT MENU 12.07... - Page 4 Dimensions are in inches. For millimeters multiply by 25.4. COMPUTER MONITOR CONTROL VT490/590 Intake Intake www.necdisplay.com AUDIO VIDEO S-VIDEO Rear Foot Lens Center 4.40 4.76 NEC Display Solutions of America, Inc. AUDIO VIDEO AUDIO MONITOR S-VIDEO COMPUTER1 AUDIO COMPUTER2(DVI-I) CONTROL VT595 7.32 Rear Foot 0.63 0.75 0.83...
- Page 5 NEC Display Solutions of America, Inc. VT491/590/595 Installation Guide Ceiling Mounted and Desktop Rev 1.3 Optional Ceiling Mount Dimensions (Model #: VL80CM) The following drawings show the ceiling mount dimensions. Dimensions are in inches. For millimeters multiply by 25.4. 8.62 www.necdisplay.com...
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Page 6: Input Panel
None Communications: Full duplex NOTE 1 : Pins 2, 3, 5, and 6 are used inside the projector. NOTE 2: For long cable runs it is recommended to set communication speed within the projector to 9600 bps. www.necdisplay.com VT595 PC CONTROL...