NEC VT650 projector Installation Data

Visual Systems

VT650 Installation Data

Desktop and Ceiling Mount ver 1.5

Contents

Product Description, Lens Specs, Notes and Formulas Page 1

Projection Distances and Screen Sizes

Desktop Setup Page 3

Cabinet Dimensions

Control Codes Page 7

Type: 3 panel, 0.9” p-Si TFT w/MLA LCD projector Dimensions: 9.57”(W) x 4.0”(H) x 11.2”(D)

Throw Ratio: 1.8 - 2.2:1(approx.) Focal

Offset Angle: 9.3

°

-9.7

°

(wide)/7.8

°

-8.1

°

Screen Sizes: 25”-300”

Notes

For screen sizes 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)

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 (screen bottom for desktop application)

α = Throw Angle

Projection Formulas: Screen Formulas (4:3):

(tele) 2.2057H

α (wide) = tan -1 (B/C(wide))

α (tele) = tan -1

(B/C(tele))

Visual Systems

VT650 Installation Data

Desktop and Ceiling Mount ver 1.5

Projection Distance and Screen Size for Ceiling Mount

The following shows the proper relative position of the projector and screen. Refer to the table for installation data.

Distances are in inches. For millimeters multiply by 25.4.

Ceiling Mount Installation

C

Throw Distance

5.9"

5.5"

Screen Top

Lens Ctr

D

B

Screen Ctr

α

Lens Offset from

Mount Pipe

Distance Chart

Screen Size (4:3)

100

120

150

180

210

240

270

300

Diagonal Width(H) Height (V) inches

25 inches

20 inches

15

40

60

32

48

24

36

67

72

84

90

53.6

57.6

67.2

72

40.2

43.2

50.4

54

80

96

120

144

168

192

216

240

60

72

90

108

126

144

162

180

B

24.1

28.9

36.1

43.3

50.5

57.7

65.0

72.2

inches

6.0

9.6

14.4

16.1

17.3

20.2

21.7

C wide - tele inches

NA - 42.4

57.1 - 68.9

86.5 - 104.1

96.8 - 116.5

104.2 - 125.3

121.8 - 146.5

130.6 - 157.1

145.3 - 174.7

174.7 - 210.0

218.8 - 263.0

263.0 - 315.9

307.1 - 368.8

351.2 - 421.8

395.3 - NA

439.4 - NA

D

Note: For screen sizes not indicated on the projection tables, use the formulas on page 1.

5.9

7.1

8.9

10.7

12.5

14.3

16.0

17.8

inches

1.5

2.4

3.6

4.0

4.3

5.0

5.3

1.4"

α wide - tele degrees

NA - 8.1

9.6 - 8.0

9.5 - 7.9

9.5 - 7.9

9.4 - 7.9

9.4 - 7.9

9.4 - 7.8

9.4 - 7.8

9.4 - 7.8

9.4 - 7.8

9.4 - 7.8

9.3 - 7.8

9.3 - 7.8

9.3 - NA

9.3 - NA

Visual Systems

VT650 Installation Data

Desktop and Ceiling Mount ver 1.5

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

C

Throw Distance

Screen Ctr

B

Lens Ctr

Scrn Bottom

D

α

2.3"

Projector Feet

Distance Chart

Screen Size (4:3)

Diagonal Width(H) Height (V) inches

25 inches

20 inches

15

40

60

32

48

24

36

67

72

84

90

53.6

57.6

67.2

72

40.2

43.2

50.4

54

B inches

6.0

9.6

14.4

16.1

17.3

20.2

21.7

C wide - tele inches

NA - 42.4

57.1 - 68.9

86.5 - 104.1

96.8 - 116.5

104.2 - 125.3

D

100

120

150

180

210

80

96

120

144

168

60

72

90

108

126

24.1

28.9

36.1

43.3

50.5

121.8 - 146.5

130.6 - 157.1

145.3 - 174.7

174.7 - 210.0

218.8 - 263.0

263.0 - 315.9

307.1 - 368.8

5.9

7.1

8.9

10.7

12.5

240

270

192

216

144

162

57.7

65.0

351.2 - 421.8

395.3 - NA

14.3

16.0

300 240 180 72.2

439.4 - NA 17.8

Note: For screen sizes not indicated on the projection tables, use the formulas on page 1. inches

1.5

2.4

3.6

4.0

4.3

5.0

5.3

α wide - tele degrees

NA - 8.1

9.6 - 8.0

9.5 - 7.9

9.5 - 7.9

9.4 - 7.9

9.4 - 7.9

9.4 - 7.8

9.4 - 7.8

9.4 - 7.8

9.4 - 7.8

9.4 - 7.8

9.3 - 7.8

9.3 - 7.8

9.3 - NA

9.3 - NA

Visual Systems

VT650 Installation Data

Desktop and Ceiling Mount ver 1.5

Cabinet Dimensions

The following diagrams show the cabinet dimensions for the VT650.

Dimensions are in inches. For millimeters multiply by 25.4.

£

£ units: inches

VT650

9.571

1.311

0.035

Visual Systems

VT650 Installation Data

Desktop and Ceiling Mount ver 1.5

Cabinet Dimensions (continued)

The following diagrams show the cabinet dimensions for the VT650.

Dimensions are in inches. For millimeters multiply by 25.4.

M4*10

Mount

3.811

3.201

7.480

3.201

M4*10

Mount units: inches

M4*10

Mount

0.386

7.402

M4*10

Mount

Visual Systems

VT650 Installation Data

Desktop and Ceiling Mount ver 1.5

Optional Ceiling Mount Dimensions (Model #: VT40CM)

The following diagrams show ceiling mount dimensions for the VT650.

Dimensions are in inches. For millimeters multiply by 25.4.

34°

TYP

68°

TYP

TYP

22°

8.00

4.00

3.75

∅ .41 TYP

∅ .34 TYP

∅ 1.94

3.75

8.00

4.00

3.0

5° UP

15° DOWN units: inches

Visual Systems

VT650 Installation Data

Desktop and Ceiling Mount ver 1.5

PC Control Codes

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

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 OFF 02H 13H 00H 00H 00H 15H

Cable Connection

Communication Protocol:

Baud Rate: 19200 bps

Data Length: 8 bits

Stop Bit: One bit

Communications: Full duplex

PC Control Connector (DIN-8P)

To RxD of PC

5

8

2

7

4

6

3

1

To GND of PC To TxD of PC

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.