NEC VT670 VT470/570/670/575/676 IG

NEC VT670 - XGA LCD Projector Manual

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  • NEC VT670 | VT470/570/670/575/676 IG - Page 1
    Guide Ceiling Mounted and Desktop v1.5 Contents Product Description, Lens Specs, Notes and Formulas Diagrams and Distance Charts Cabinet Dimensions Ceiling Mount Dimensions Input Panel and Control Codes Pg. 1 Pg. 2 Pg. 3 - 4 Pg. 5 Pg. 6 Product Description Type: 3 panel LCD projector
  • NEC VT670 | VT470/570/670/575/676 IG - Page 2
    Charts The following diagrams show the relationship between projector position and the screen. Refer to the chart α 2.5" Distance chart for popular 4:3 screens Note: For screen sizes not indicated on the chart, use the formulas on page 1. Note: "NA" means it is outside lens range for that part of
  • NEC VT670 | VT470/570/670/575/676 IG - Page 3
    Cabinet Dimensions The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4. 11.10 4.15 10.24 2.30 (boss) 4.19 2.54 (foot) 4.43 Exhaust 2.81 11.57 www.necvisualsystems.com VT470/570/575/670/676 Page 3 of 6
  • NEC VT670 | VT470/570/670/575/676 IG - Page 4
    Dimensions (continued) The following drawings show the cabinet dimensions. Dimensions are in inches. For millimeters multiply by 25.4. 3-M4x8 MAX For Ceiling Mount Intake Lamp 6.85 2.61 1.83 3.60 7.28 For handle (Except VT570) www.necvisualsystems.com VT470/570/575/670/676 Page 4 of 6
  • NEC VT670 | VT470/570/670/575/676 IG - Page 5
    7.62 Optional Ceiling Mount Dimensions (Model #: VT70CM) The following drawings show ceiling mount dimensions. Dimensions are in inches. For millimeters multiply by 25.4. 7.62 3.24 2.67 www.necvisualsystems.com VT470/570/575/670/676 Page 5 of 6
  • NEC VT670 | VT470/570/670/575/676 IG - Page 6
    CONTROL Control Codes Function Code Data POWER ON 02H 00H 00H 00H 00H 02H POWER 00H 15H NOTE: Contact your NEC rep for codes not listed. Cable Control Connector (DIN-8P) To RxD of PC 8 76 5 4 3 21 To GND of PC To TxD of PC NOTE 1: Pins 2, 3, 5, 6 and 8 are used inside the projector
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www.necvisualsystems.com
VT470/570/575/670/676
Page 1 of 6
NEC Solutions (America), Inc.
Visual Systems
VT470/570/575/670/676 Installation Guide
Ceiling Mounted and Desktop
v1.5
Contents
Product Description, Lens Specs, Notes and Formulas
Pg. 1
Diagrams and Distance Charts
Pg. 2
Cabinet Dimensions
Pg. 3 - 4
Ceiling Mount Dimensions
Pg. 5
Input Panel and Control Codes
Pg. 6
Product Description
Type:
3 panel LCD projector,
Brightness:
VT470:
2000 ANSI lumens
0.7” p-Si TFT (VT670 w/MLA)
VT570:
1300 ANSI lumens
Resolution:
VT470:
800x600
VT575:
1500 ANSI lumens
VT570/575/670/676: 1024x768
VT670:
2100 ANSI lumens
Dimensions:
11.57”(W) x 4.43”(H) x 11.10”(D)
VT676:
2500 ANSI lumens
Weight:
6.4 lbs
Lens Specifications
Throw Ratio: 1.5 - 1.8:1(for 100” diagonal)
Focal Length: 21.6mm – 25.9mm
Offset Angle: 9.6
°
-11.5
°
(for 100” diagonal)
F/#:
1.7 – 2.0
Screen Sizes: 21”-300” diagonal (4:3)
Manual Zoom / Manual Focus
Notes
For screen sizes not indicated on the projection charts, use the formulas below.
If a value in a chart does not match the results of the formulas, use the values in the chart.
The ceiling must be strong enough to support the projector and the installation must be in accordance with any local
building codes.
All formulas are based on a 4:3 aspect ratio and screen.
Distances are in inches, for millimeters multiply by 25.4.
Distances may vary
±
5%.
Formulas
The Projection Formulas use the image width for calculation. Image width is the same for all aspect ratios, only vertical image size
varies. For proper projector placement, determine the image width for a desired screen size. Use the Screen Formulas below to
calculate all screen dimensions. Plug in the image width for “W” in the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2.
Definitions:
4:3 Screen Formulas:
W
= Image Width
W
= H x 4/3
H
= Image Height (Size)
H
= W x 3/4
B
= Vertical distance between lens center and screen center
Screen Diagonal
= W x 5/4
C
= Throw distance
D
= Vertical distance between lens center and screen top (screen
bottom for desktop)
α
= Projection angle
Projection Formulas:
B
= 0.2986W
C
(wide) = 1.4813W – 1.425
C
(tele)
= 1.7913W – 1.406
D
= 0.0764W
α
(wide) = tan
-1
(B/C(wide))
α
(tele)
= tan
-1
(B/C(tele))