Nec Multisync lt 80 Installation and user guide

Visual Systems Division

Technical Bulletin

MultiSyncLT80 Installation Data

Desk Top and Ceiling Mount

Page1

Contents

Notes and Formulas Page 1

Projection Distances and Screen Sizes

Ceiling Mount Page 2

Desktop Setup Page 3

Cabinet Dimensions Page 4

Ceiling Mount Dimensions Page 5

Notes

§For Screen Sizes of 24 to 300 inches not indicated on the projection tables, use the formulas below.

§Set the projection distance based on the width of the screen.

§If the figures on the tables do not match the figures in the formulas, use the figures in the table.

§All dimensions are in inches. Multiply by 25.4 for millimeters.

§Distances may vary +/- 5%.

Formulas

Units: Inches

A= C / COS α

B= ((H x 1.25) – 0.2) x 3 / 25.4

C (WIDE) = ((H x 12.5 / 243) – 0.06) x 39.37

C (TELE) = ((H x 12.5 / 187) – 0.06) x 39.37

αα = TAN -1 ((H x 0.375) + B) / C

H= Width of screen

A= Distance between lens center and screen center

B= Vertical distance between lens center and screen bottom (screen top for ceiling mount)

C= Horizontal throw distance between screen surface and projector lens

αα = Offset Angle of image path center line with reference to desktop or ceiling

Visual Systems Division

Technical Bulletin

MultiSyncLT80 Installation Data

Desk Top and Ceiling Mount

Page2

Projection Distance and Screen Size for Ceiling Mount

The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of

installation.

Ceiling Mount System

Distance Chart

Note:

For screen sizes of 24 to 300 inches not indicated on the projection tables, use the formulas on page 1.

Screen Center

Screen Top

ATEXASINSTRAMENTS TECHNOLOGY

MultiSync LT

DLP

VIDEOINPUT

S-VIDEO VIDEO L(MONO) RAUDIO

PCCONTROL

RGB AUDIO

RGBINPUT RGBOUTPUT

RGB AUDIO

WARNUNGHEISS

ATTENTIONCHAUD

CAUTIONHOT

•‚‰·’•ˆÓ

C6.23"

5.41"

1.25"

Horizontal

Lens

Offset

Screen Size AB C αα

Diagonal Width wide - tele wide - tele wide - tele

40" 32" 65.2 - 84.4" 4.8" 63" - 82.7" 14.9° - 11.5°

60" 48" 97.7" - 126.5" 6.9" 94.5" - 124.0" 14.8° - 11.4°

67" 53.6" 109.8" - 141.5" 7.9" 106.2" - 138.7" 14.8° - 11.4°

72" 57.6" 118.2" - 152.2" 8.5" 114.3" - 149.2" 14.8° - 11.4°

84" 67.2" 138.2" - 178.0" 9.9" 133.7" - 174.5" 14.7° - 11.4°

90" 72" 148.4" - 190.9" 10.6" 143.5" - 187.1" 14.7° - 11.4°

100" 80" 164.7" - 212.8" 11.5" 159.4" - 208.7" 14.6° - 11.3°

120" 96" 198.5" - 255.2" 14.1" 192.1" - 250.3" 14.6° - 11.3°

150" 120" 248.7" - 319.6" 17.7" 240.7" - 313.4" 14.6° - 11.3°

180" 144" 299.0" - 384.0" 21.2" 289.3" - 376.6" 14.6° - 11.3°

210" 168" 349.2" - 448.5" 24.8" 337.9" - 439.8" 14.6° - 11.3°

240" 192" 399.2" - 512.8" 28.3" 386.5" - 502.9" 14.5° - 11.3°

270" 216" 449.4" - 577.3" 31.9" 435.1" - 566.1" 14.5° - 11.3°

300" 240" 500.2" - No Tele 35.1" 484.3" - No Tele 14.5° - No Tele

Visual Systems Division

Technical Bulletin

MultiSyncLT80 Installation Data

Desk Top and Ceiling Mount

Page3

Projection Distance and Screen Size for Desktop

The following diagram shows the relationship between projector position and the screen.

Desktop System

Distance Chart

Note:

For screen sizes of 24 to 300 inches not indicated on the projection tables, use the formulas on page 1.

Screen Center

Desk Top Level

Screen Bottom

3.33"

CETAPPAREILNUMERIQUE DE LA CLASSE A RESPECTE TOUTES LES EXIGENCES DU REGLEMENT SUR LE MATERIEL

BROUILLEURDUCANADA.

EQUIPMENTREGULATIONS.

THISCLASSA DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE-CAUSING

THISCABINETIS CONSTRUCTED OF PLASTIC(ABS).

ACCEPTANYINTERFERENCE RECEIVED,INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.

TWOCONDITIONS•G(1)THISDEVICE MAY NOT CAUSE HARMFUL INTERFERENCE,AND (2) THIS DEVICE MUST

THISDEVICECOMPLIES WITH PART 15 OF THE FCC RULES.OPERATION IS SUBJECT TO THE FOLLOWING