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NEC LT260 Installation Manual
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NEC LT260 Installation Manual

NEC LT260 Installation Manual

Nec lt260: installation guide
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Download this manual See also: Command Manual, User Manual
LT260/260K Installation Guide
Desktop and Ceiling Mount
Contents
Product Description, Lens Specs, Notes and Formulas
Projection Distances and Screen Sizes
Ceiling Mount Installation
Desktop Setup
Cabinet Dimensions
Top, Front and Right Side
Bottom, Back and Left Side
Ceiling Mount Dimensions
Control Codes

Product Description

Type:
1 chip DLP
Native Resolution:
1024 x 768 (XGA)
Brightness:
LT260:
LT260K: 2400 ANSI

Lens Specifications

Throw Ratio:
2.0 - 2.4:1(approx.)
Offset Angle:
12.3
Screen Sizes:
30"-500"
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.
4:3 sources can be displayed on a 16:9 screen without vertical "squeezing", see "Aspect Ratio" in the user manual.
Distances are in inches, for millimeters multiply by 25.4.
•
Distances may vary ±5%.
Formulas
Units: Inches (for millimeters multiply final number by 25.4)
Projection Formulas:
B = 0.5265H – 0.013
C (wide) = 2.0062H – 1.764
C (tele) = 2.4281H – 1.260
D = 0.1515H - 0.013
-1
α (wide) = tan
(B/C(wide))
-1
α (tele) = tan
(B/C(tele))
www.necvisualsystems.com
TM
projector
2100 ANSI
°
°
-14.9
(approx.)
Definitions:
H = Horizontal Screen Width (4:3)
V = Vertical Screen Height (4:3)
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and screen top
α = Throw Angle
Screen Formulas (4:3):
H = Screen Diagonal x 4/5
V = Screen Diagonal x 3/5
Screen Diagonal = H x 5/4
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Dimensions: 10.24"(W) x 4.74"(H) x 11.81"(D)
Weight:
6.5 lbs
Focal Length: 28.4mm – 34.0mm
F/#:
2.2 – 2.5
Manual Focus/Manual Zoom
(screen bottom for desktop application)
NEC Solutions (America), Inc.
Visual Systems
LT260/260K
Page 1 of 7
v3.5

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Summary of Contents for NEC LT260

  • Page 1: Product Description

    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.

  • Page 2: Ceiling Mounted Installation

    Ceiling Mounted Installation The following diagram shows the relationship between projector position and the screen. Refer to the chart below for data. Distances are in inches. For millimeters multiply by 25.4. Lens Ctr Screen Top Screen Ctr Distance Chart (for popular screen sizes)

  • Page 3: Desktop Setup

    Desktop Setup The following diagram shows the relationship between projector position and the screen. Refer to the chart below for data. Distances are in inches. For millimeters multiply by 25.4. Screen Ctr Screen Bottom Lens Ctr Distance Chart (for popular screen sizes)

  • Page 4: Cabinet Dimensions

    Cabinet Dimensions The following diagrams show the cabinet dimensions for the LT260. Dimensions are in inches. For millimeters multiply by 25.4. 4.094 3.622 2.756 2.244 3.169 VENTILATION 10.236 3.268 4.213 4.724 VENTILATION 2.303 1.398 7.362 www.necvisualsystems.com LT260/260K Page 4 of 7...
  • Page 5 Cabinet Dimensions (continued) The following diagrams show the cabinet dimensions for the LT260. Dimensions are in inches. For millimeters multiply by 25.4. VENTILATION FOR CEILING MOUNT 4.213 2.559 3 - M4x10 SECURITY SLOT 2.303 www.necvisualsystems.com LT260/260K Page 5 of 7...
  • Page 6 Optional Ceiling Mount Dimensions (Model #: LT60CM) The following diagrams show ceiling mount dimensions for the LT260. Dimensions are in inches. For millimeters multiply by 25.4. The LT60CM comes with a threaded pipe base and a flush base for minimal mount height.

  • Page 7: Control Codes

    To GND of PC To TxD of PC NOTE 1: It is recommended to set the projector to “Idle Mode” in the Setup menu for best Power ON response. NOTE 2: Pins 2, 3, 5, 6 and 8 are used inside the projector.

This manual is also suitable for:

Lt260k

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