NEC LT180 - LT 180 XGA DLP Projector Manual de usuario

www.necvisualsystems.com LT180 Page 1 of 7

zz NEC Solutions (America), Inc.

VisualSystemsDivision

LT180 Installation Guide

Floor and Ceiling Configuration v1.0

Contents

Product Description, Lens Specs, Screen/Aspect Ratio,

NotesandFormulas Pg 1

Diagrams & Distance Charts; Ceiling Mounted Pg 2

Floor Pg 3

Cabinet Dimensions; Top, Front and Right Pg 4

Bottom, Back and Left Pg 5

Ceiling Mount Dimensions Pg 6

Input Panel and Control Codes Pg 7

ProductDescription

Type: 1 chip DMDTM projector Color Wheel: 4 Segments (2x)

Resolution: 1024 x 768 Dimensions: 7.37”(W) x 5.24”(H) x 13.60”(D)

Brightness: 2000 ANSI Lumens Weight: 6.4lbs

ContrastRatio:1000:1

LensSpecifications

Throw Ratio: 1.37 - 1.63:1 (for 100” Diag) Manual Focus/Manual Zoom

Offset Angle: 10.5°- 12.4°(for 100” Diag) Focal Length: 19.7mm – 23.0mm l

Screen Sizes: 30”-200” diagonal (4:3) F/#: 2.0 – 2.48

Notes

•For screen sizes not indicated in the projection charts, use the formulas below.

•The ceiling must be strong enough to support the projector and the installation must be in accordance with any local

building codes.

•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 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 & 3.

Definitions: 4:3 Screen Formulas:

W= Image Width W=Hx4/3

H= Image Height (Size) H=Wx3/4

B= Vertical distance between lens center and screen center Screen Diagonal = W x 5/4

C=Throwdistance

Projection Formulas:

B= 0.2980W

C(wide) = 1.3908W – 1.967

C(tele) = 1.6511W – 1.945

α(wide) = tan-1 (B/C(wide))

α(tele) = tan-1 (B/C(tele))

www.necvisualsystems.com LT180 Page 2 of 7

Diagrams and Distance Charts

The following diagrams show 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.

Ceiling Mounted Configuration

Note: Mount shown is NEC HT40CM.

Distance charts for popular 4:3 screens

Lens Ctr 5.5"

Throw Distance

Lens Offset from

Mount Center

1.5"

6.6"

Screen Top

Screen Ctr

Diag W H wide

tele wide

tele

inches inches inches inches inches

30 24 18 7.2 31.4

37.7 1.8 12.8

10.7

60 48 36 14.3 64.8

77.3 3.7 12.4

10.5

72 57.6 43.2 17.2 78.1

93.2 4.4 12.4

10.4

84 67.2 50.4 20.0 91.5

109.0 5.2 12.3

10.4

90 72 54 21.5 98.2

116.9 5.5 12.3

10.4

100 80 60 23.8 109.3

130.1 6.2 12.3

10.4

120 96 72 28.6 131.5

156.6 7.4 12.3

10.4

150 120 90 35.8 164.9

196.2 9.2 12.2

10.3

180 144 108 42.9 198.3

235.8 11.1 12.2

10.3

200 160 120 47.7 220.6

262.2 12.3 12.2

10.3

Screen Size (4:3) C

inches

degrees

www.necvisualsystems.com LT180 Page 3 of 7

Diagrams and Distance Charts (cont.)

The following diagrams show 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.

Floor Configuration

Distance charts for popular 4:3 screens

Lens Ctr

Throw Distance

Screen Bottom

Screen Ctr

3.1"

Diag W H wide

tele wide

tele

inches inches inches inches inches

30 24 18 7.2 31.4

37.7 1.8 12.8

10.7

60 48 36 14.3 64.8

77.3 3.7 12.4

10.5

72 57.6 43.2 17.2 78.1

93.2 4.4 12.4

10.4

84 67.2 50.4 20.0 91.5

109.0 5.2 12.3

10.4

90 72 54 21.5 98.2

116.9 5.5 12.3

10.4

100 80 60 23.8 109.3

130.1 6.2 12.3

10.4

120 96 72 28.6 131.5

156.6 7.4 12.3

10.4

150 120 90 35.8 164.9

196.2 9.2 12.2

10.3

180 144 108 42.9 198.3

235.8 11.1 12.2

10.3

200 160 120 47.7 220.6

262.2 12.3 12.2

10.3

Screen Size (4:3) C

inches

degrees

www.necvisualsystems.com LT180 Page 4 of 7

Cabinet Dimensions

The following drawings show the cabinet dimensions.

Dimensions are in inches. For millimeters multiply by 25.4.

13.60

5.24(from foot to button)

4.76

2.07 5.30

3.11

4.69

4.45

3.17Ø (focus)

13.27

0.02 (button)

4.94

4.49 (boss)

AUTO

ADJ.

SOURCE

SELECT

ENTER

EXIT

www.necvisualsystems.com LT180 Page 5 of 7

Cabinet Dimensions (continued)

The following drawings show the cabinet dimensions.

Dimensions are in inches. For millimeters multiply by 25.4.

M4x8 Max for Mount



ACIN `

PCCONTROL

COMPUTER IN

AUDIO IN

YCb/Pb

Cr/Pr

COMPONENT INVIDEO IN

R AUDIO IN

S-VIDEO

MONITOR OUT

AUDIO OUT

8.05 (boss)

9.94 (foot)

1.24

(foot)

1.77(lens)

0.79

2.602.60

1.12

(boss)

1.61

(foot)

1.18

(boss)

3.86 (boss)

5.81 (boss)

0.33

www.necvisualsystems.com LT180 Page 6 of 7

Optional Ceiling Mount Dimensions (Model #: HT40CM)

The following drawings show ceiling mount dimensions.

Dimensions are in inches. For millimeters multiply by 25.4.

The mount accommodates a 1.5” NPT treaded pipe extension or two 3/8”-16 threaded rod extensions.

Mount adjustments include roll, pitch and yaw.

Contact Peerless Industries for mount accessories at (800) 865-2112.

9.33

2.67

0.406

1.5" NPT

6.16

Standoffs

0.50

3.17

www.necvisualsystems.com LT180 Page 7 of 7

Input Panel

Control Codes

FUNCTION CODEDATA

POWER ON 02H 00H 00H 00H 00H 02H

POWER OFF 02H 01H 00H 00H 00H 03H

INPUT SELECT COMPUTER 02H 03H 00H 00H 02H 01H 01H 09H

INPUT SELECT COMPONENT 02H 03H 00H 00H 02H 01H 11H 19H

INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH

INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H

PICTURE MUTE ON 02H 10H 00H 00H 00H 12H

PICTURE MUTE OFF 02H 11H 00H 00H 00H 13H

SOUND MUTE ON 02H 12H 00H 00H 00H 14H

SOUND MUTE OFF 02H 13H 00H 00H 00H 15H

Note: Checksum (CKS) is already included in the commands above.

Note: Contact your NEC rep for codes not listed.

Cable Connection

Communication Protocol: PC Control Connector (DIN-8P)

Baud Rate: 38400 bps

Data Length: 8 bits

Parity: No Parity

Stop Bit: One bit

X on/off: None

Communications: Full duplex

NOTE 1: Pins 2, 3, 5, 6 and 8 are used inside the projector.

NOTE 2 : For long cable runs it is recommended to set communication speed within projector menus to 9600 bps.

Digital Light Processing, DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments.

PC CONTROL COMPUTER IN

AUDIO IN

Cb/Pb

Cr/Pr

COMPONENT IN VIDEO IN

R AUDIO IN

S-VIDEO

MONITOR OUT

AUDIO OUT

To RxD of PC

345

678

To TxD of PCTo GND of PC

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