Nec VT470, V15S, vt570, vt575, vt670 INSTALLTION GUIDE

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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 Cabinet Dimensions Ceiling Mount Dimensions Input Panel and Control Codes

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° Screen Sizes: 21”-300” diagonal (4:3) Manual Zoom / Manual Focus

(for 100” diagonal) F/#: 1.7 – 2.0

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 Fo rmu las: 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 α (tele) = tan

-1

(B/C(wide))

(B/C(tele))

Pg. 2 Pg. 3 - 4 Pg. 5 Pg. 6

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Diagrams and Distance Charts

The following diagrams show the relationship bet ween projector position and the screen. Refer to the chart below for data. Distances are in inches. For millimeters multiply by 25.4.

Ceiling Mounted

Screen Top

Lens Ctr

Throw Distance

6.1"

5.5"

Screen Ctr

Lens Offset from Mount Pipe

2.7"

Desktop

Screen Ctr

Lens Ctr

Screen Bottom

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 the zoom. Refer to “Screen Sizes” in Lens Specifications on Page 1.

Screen Size

Diag W H wide

inches inches inches inches inches

21 16.8 12.6 5.0 NA-28.7 1.3 NA-9.9 60 48 36 14.3 69.7 72 57.6 43.2 17.2 83.9 84 67.2 50.4 20.1 98.1

90 72 54 21.5 105.2 100 80 60 23.9 117.1 120 96 72 28.7 140.8 150 120 90 35.8 176.3 180 144 108 43.0 211.9 200 160 120 47.8 235.6 250 200 150 59.7 294.8 300 240 180 71.7 354.1

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Throw Distance

(4:3)

2.5"

tele wide-tele

inches

degrees

84.6 3.7 11.6-9.6

101.8 4.4 11.6-9.6

119.0 5.1 11.6-9.6

127.6 5.5 11.5-9.6

141.9 6.1 11.5-9.6

170.6 7.3 11.5-9.5

213.6 9.2 11.5-9.5

256.5 11.0 11.5-9.5

285.2 12.2 11.5-9.5

356.9 15.3 11.5-9.5

428.5 18.3 11.4-9.5

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