NEC LCDMT850 Guide d'installation et d'utilisation

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 1

Contents

Product Description, Lens Specs, Notes and Formulas Page 1

Projection Distances and Screen Sizes

Ceiling Mount Installation Page 2

Desktop Setup Page 3

Cabinet Dimensions

Top, Front and Right Side Page 4

Bottom, Back and Left Side Page 5

Ceiling Mount Dimensions Page 6

Timing Chart Page 7

PC Control Codes Page 8

Product Description

Type: 3 panel, 1.3” p-Si TFT LCD projector Dimensions: 11.1”(W) x 4.8”(H) x 14.3”(D)

Native Resolution: 800 x 600 Weight: 13 lbs

Brightness: 1700 ANSI Lumens

Lens Specifications

Standard Zoom Lens

Throw Ratio: 1.76 –1.84:1(Wide) / 2.13 –2.21:1(Tele) Focal Length: 48.6 –58.4mm

Offset Angle: 9.9 –10.4(Wide) / 8.3 –8.6(Tele) F/#: 2.3 –2.7

Screen Sizes: 30” –300” Diagonal Focus Adjustment: Manual Focus / Manual Zoom

Notes

§For Screen Sizes of 30 to 300 inches not indicated on the projection tables, use the formulas below.

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

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

building codes.

•All calculations are based on 4:3 aspect ratio.

•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)

D = Screen Diagonal (4:3)

H= D x 0.8 H= Screen Width (4:3)

V= D x 0.6 V= Screen Height (4:3)

M= 0.96212H M= Projection magnification

B= 0.3346M B= Vertical distance between lens center and screen center

C(Wide) = 1.9216M –2.18 C= Throw distance

C(Tele) = 2.3059M –2.18

D= 0.0585M D= Vertical distance between lens center and top of screen (bottom of screen

for desktop application)

α(wide) = tan-1(B/C(wide)) α= Throw angle

α(tele) = tan-1(B/C(tele))

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 2

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.

Distances are in inches. For millimeters multiply by 25.4.

Ceiling Mount Installation

Screen Ctr

Scrn Bottom

Screen Top

Lens Ctr

7.0"

Throw Distance

5.8"

ACIN•@•`

1.7"

Lens Offset from

MountingPipe

Distance Chart

Note:

For screen sizes of 30 to 300 inches not indicated on the projection tables, use the formulas on page 1.

B C D α

Diagonal Width Height wide - tele wide - tele

40" 32" 24" 10.3" 57.0" - 68.8" 1.7" 10.2° - 8.5°

60" 48" 36" 15.4" 86.5" - 104.3" 2.6" 10.1° - 8.4°

67" 53.6" 40.2" 17.2" 96.9" - 116.7" 2.9" 10.1° - 8.4°

72" 57.6" 43.2" 18.5" 104.3" - 125.5" 3.1" 10.1° - 8.4°

84" 67.2" 50.4" 21.6" 122.0" - 146.8" 3.6" 10.1° - 8.4°

90" 72" 54" 23.2" 130.9" - 157.5" 3.8" 10.0° - 8.4°

100" 80" 60" 25.7" 145.6" - 175.2" 4.3" 10.0° - 8.4°

120" 96" 72" 30.9" 175.2" - 210.7" 5.1" 10.0° - 8.3°

150" 120" 90" 38.6" 219.6" - 263.9" 6.4" 10.0° - 8.3°

180" 144" 108" 46.3" 263.9" - 317.1" 7.7" 10.0° - 8.3°

210" 168" 126" 54.1" 308.3" - 370.3" 8.9" 9.9° - 8.3°

240" 192" 144" 61.8" 352.6" - 423.6" 10.2" 9.9° - 8.3°

270" 216" 162" 69.5" 396.9" - 476.8" 11.5" 9.9° - 8.3°

300" 240" 180" 77.2" 441.3" - 530.0" 12.8" 9.9° - 8.3°

Screen Size

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 3

Projection Distance and Screen Size for Desktop

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

Distances are in inches. For millimeters multiply by 25.4.

Desktop Setup

Throw Distance

Screen Top

Scrn Bottom

Screen Ctr

2.89" Projector Foot

Lens Ctr

Distance Chart

Note:

For screen sizes of 30 to 300 inches not indicated on the projection tables, use the formulas on page 1.

B C D α

Diagonal Width Height wide - tele wide - tele

40" 32" 24" 10.3" 57.0" - 68.8" 1.7" 10.2° - 8.5°

60" 48" 36" 15.4" 86.5" - 104.3" 2.6" 10.1° - 8.4°

67" 53.6" 40.2" 17.2" 96.9" - 116.7" 2.9" 10.1° - 8.4°

72" 57.6" 43.2" 18.5" 104.3" - 125.5" 3.1" 10.1° - 8.4°

84" 67.2" 50.4" 21.6" 122.0" - 146.8" 3.6" 10.1° - 8.4°

90" 72" 54" 23.2" 130.9" - 157.5" 3.8" 10.0° - 8.4°

100" 80" 60" 25.7" 145.6" - 175.2" 4.3" 10.0° - 8.4°

120" 96" 72" 30.9" 175.2" - 210.7" 5.1" 10.0° - 8.3°

150" 120" 90" 38.6" 219.6" - 263.9" 6.4" 10.0° - 8.3°

180" 144" 108" 46.3" 263.9" - 317.1" 7.7" 10.0° - 8.3°

210" 168" 126" 54.1" 308.3" - 370.3" 8.9" 9.9° - 8.3°

240" 192" 144" 61.8" 352.6" - 423.6" 10.2" 9.9° - 8.3°

270" 216" 162" 69.5" 396.9" - 476.8" 11.5" 9.9° - 8.3°

300" 240" 180" 77.2" 441.3" - 530.0" 12.8" 9.9° - 8.3°

Screen Size

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 4

Cabinet Dimensions

The following diagrams show the cabinet dimensions for the MT850.

Dimensions are in inches. For millimeters multiply by 25.4.

NEC

AUDIO•@•@•@•@•@RGB INPUT 1

SVIDEO L/MONO R

AUDIO•@•@•@•@•@RGB INPUT 2

VIDEO

AC IN•@•`

SOURCE AUTO ADJUST

STATUS

POWER

SELECT

ENTER

CANCEL

•£

•œ

•£

USB PC-CARD RGB MONITOR

AUDIO•@•@•@•@•@ OUTPUT

REMOTE

CONTROL

INPUT

MOUSE

OUTPUT

PC CONTROL

ON/STAND BY

14.330.260

11.06

Ø3.46 10.28

1.56

2.74

2.89

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 5

Cabinet Dimensions (continued)

The following diagrams show the cabinet dimensions for the MT850.

Dimensions are in inches. For millimeters multiply by 25.4.

4.74

0.591 10.241.18

9.49

Ø 0.787

Ø1.38

3.98

2.36

0.787

4.90 5.63 2.36

2.70 9.45

0.260

(4) 4M x 10mm

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 6

Ceiling Mount Dimensions (Model #: MTCM)

The following diagrams show ceiling mount dimensions for the MT850/1050/1055.

Dimensions are in inches. For millimeters multiply by 25.4.

3.0

TYP

1.88

∅

.188

1.94

∅

.41TYP

.34TYP

.35

.265

.450

5° UP

15°DOWN

68°

22°

34°

3.14 2.69

5.93 5.59 4.08

4.15

1.87

3.99

4.29 4.41

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 7

Timing Chart

Y / N Signal Resolution Frequency H. Refresh Rate Dot Clock

(Dots ) ( kHz ) ( Hz ) ( MHz )

Y NTSC 640 x 480 15.734 60 –

YPAL 768 x 576 15.625 50 –

YSECAM 768 x 576 15.625 50 –

YVESA 640 x 480 31.47 59.94 25.175

Y IBM 640 x 480 31.47 60 25. 175

Y MAC 640 x 480 31.47 60 25. 175

Y MAC 640 x 480 34.97 66.67 31.334

Y MAC 640 x 480 35 66. 67 30. 24

Y VESA 640 x 480 37.86 72.81 31.5

Y VESA 640 x 480 37.5 75 31.5

Y IBM 640 x 480 39.375 75 31.49

Y VESA 640 x 480 43.269 85.01 36

Y IBM 720 x 350 31.469 70.09 28.322

Y VESA 720 x 400 37.927 85.04 35.5

Y IBM 720 x 350 39.44 87.85 35.5

Y IBM 720 x 400 39.375 87.7 35.5

Y VESA 800 x 600 35.16 56.25 36

Y VESA 800 x 600 37.879 60.32 40

Y VESA 800 x 600 48.077 72.19 50

Y VESA 800 x 600 46.88 75 49.5

Y VESA 800 x 600 53.674 85.06 56.25

#Y MAC 832 x 624 49.725 74.55 57.283

#Y VESA 1024 x 768 35.5 43 Interlace 44.9

#Y VESA 1024 x 768 48.363 60 65

#Y VESA 1024 x 768 57.476 70.07 75

#Y IBM 1024 x 768 58.131 72.03 79

#Y MAC 1024 x 768 60.241 74.93 80

#Y VESA 1024 x 768 60.023 75.03 78.75

#Y VESA 1024 x 768 68.677 85 94.5

##Y VESA 1152 x 864 67.5 75 108

##Y MAC 1152 x 870 68.681 75.06 100

##Y SUN 1152 x 900 61.796 65.95 92.94

##Y SGI 1152 x 900 71.736 76.05 105.6

##Y VESA 1280 x 960 60 60 108

##Y SGI 1280 x 1024 63.9 60 107.35

##Y VESA 1280 x 1024 63.981 60.02 108

##Y MAC 1280 x 1024 64.31 60.38 107

##Y MAC 1280 x 1024 69.9 65.2 118.5

##Y HP 1280 x 1024 78.125 72.01 135

##Y SUN 1280 x 1024 81.13 76.11 135

##Y VESA 1280 x 1024 79.976 75.03 135

##Y VESA 1280 x 1024 91.146 85.02 157.5

##Y HDTV (1080i)(1125i) 1920 x 1080 33.75 60 Interlace 74.25

##Y HDTV (720p)(750p) 1280 x 720 45 60 Progressive 74.25

##Y SDTV (480p)(525p) 720 x 483 31.47 59.94 Progressive 27

##Y SDTV (480i)(525i) 720 x 480 15.73 59.9 Interlace –

##Y VESA 1600 x 1200 75.0 60 162

##Y VESA 1600 x 1200 81.3 65 175.5

##Y VESA 1600 x 1200 87.5 70 189

##Y VESA 1600 x 1200 93.75 75 202.5

#Y: Images in above flagged with # and Y are compressed with Advanced AccuBlend on MT850 only.

##Y: Images in above flagged with ## and Y are compressed with Advanced AccuBlend on MT1055/MT1050 and MT850.

NOTE1: Some composite sync signals may not be displayed correctly.

NOTE2: Signals other than those specified in the table above may not be displayed correctly. If this should happen, change the refresh rate or resolution on your PC.

Refer to Display Properties help sectionof your PC for procedures.

NOTE3: UXGA can be supported for separate sync signal only.

Visual Systems Division

Technical Bulletin

MT850 Installation Data

with Standard Zoom Lens (1.8 –2.2:1) Rev. 1.6

Page 8

PC Control Codes

Function Code Data

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

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

INPUT SELECT RGB1 02H 03H 00H 00H 02H 01H 01H 09H

INPUT SELECT RGB2 02H 03H 00H 00H 02H 01H 02H 0AH

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

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

INPUT SELECT PC CARD VIEWER 02H 03H 00H 00H 02H 01H 1FH 27H

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

ON SCREEN MUTE ON 02H 14H 00H 00H 00H 16H

ON SCREEN MUTE OFF 02H 15H 00H 00H 00H 17H

Cable Connection

Communication Protocol:

Baud Rate: 38400 bps

Data Length: 8 bits

Parity: No Parity

Stop Bit: One bit

X on/off: None

Communications: Full duplex

PC Control Connector (DIN-8P)

To RxD of PC

345

678

To TxD of PC

To GND of PC

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

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