User manual NEC THROW-V18-LT156
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Manual abstract: user guide NEC THROW-V18-LT156
Detailed instructions for use are in the User's Guide.
[. . . ] Visual Systems
LT154/155/156 Installation Data
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 Left Side Bottom, Back and Right Side Ceiling Mount Dimensions Top, Front and Left Side Bottom, Back and Right Side PC Control Codes Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Rev. [. . . ] 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 V = D x 0. 6 M 1. 38889H B = 0. 2165M C (Wide) = 1. 4483M 2. 165 C (Tele) = C (Wide) x 1. 15 D = 0. 0535M (wide) = tan (B/C(wide)) -1 (tele) = tan (B/C(tele))
-1
H = Screen Width (4:3) V = Screen Height (4:3) M = Projection magnification B = Vertical distance between lens center and screen center C = Throw distance D = Vertical distance between lens center and top of screen (bottom of screen for desktop application) = Throw angle
Page 1
Visual Systems
LT154/155/156 Installation Data
Desktop and Ceiling Mount
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. 1. 8
Ceiling Mount Installation
5. 7" Screen Top Lens Ctr D 4. 2"
C Throw Distance
B Screen Ctr Lens Offset from Mounting Pipe
1. 6"
Distance Chart
Screen Size
Diagonal 40" 60" 67" 72" 84" 90" 100" 120" 150" 180" 210" 240" 270" 300" Width 32" 48" 53. 6" 57. 6" 67. 2" 72" 80" 96" 120" 144" 168" 192" 216" 240" Height 24" 36" 40. 2" 43. 2" 50. 4" 54" 60" 72" 90" 108" 126" 144" 162" 180" 10" 14" 16" 17" 20" 22" 24" 29" 36" 43" 51" 58" 65" 72"
B
C
wide - tele 62" - 72" 94" - 109" 106" - 122" 114" - 131" 133" - 153" 143" - 164" 159" - 183" 191" - 220" 239" - 275" 288" - 331" 336" - 386" 384" - 442" 432" - ---481" - ----
D
2" 4" 4" 4" 5" 5" 6" 7" 9" 11" 12" 14" 16" 18"
wide - tele 8. 8° - 7. 7° 8. 7° - 7. 6° 8. 6° - 7. 6° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 4° 8. 5° ---
8. 5° - ---
Note:
For screen sizes of 25 to 300 inches not indicated on the projection tables, use the formulas on page 1.
Page 2
Visual Systems
LT154/155/156 Installation Data
Desktop and Ceiling Mount
Projection Distance and Screen Size for Desktop
The following diagram shows the relationship between projector position and the screen. 1. 8
Desktop Setup
Screen Ctr B Lens Ctr
C Throw Distance
D Screen Bottom 1. 6" Projector Foot
Distance Chart
Screen Size
Diagonal 40" 60" 67" 72" 84" 90" 100" 120" 150" 180" 210" 240" 270" 300" Width 32" 48" 53. 6" 57. 6" 67. 2" 72" 80" 96" 120" 144" 168" 192" 216" 240" Height 24" 36" 40. 2" 43. 2" 50. 4" 54" 60" 72" 90" 108" 126" 144" 162" 180" 10" 14" 16" 17" 20" 22" 24" 29" 36" 43" 51" 58" 65" 72"
B
C
wide - tele 62" - 72" 94" - 109" 106" - 122" 114" - 131" 133" - 153" 143" - 164" 159" - 183" 191" - 220" 239" - 275" 288" - 331" 336" - 386" 384" - 442" 432" - ---481" - ----
D
2" 4" 4" 4" 5" 5" 6" 7" 9" 11" 12" 14" 16" 18"
wide - tele 8. 8° - 7. 7° 8. 7° - 7. 6° 8. 6° - 7. 6° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 5° 8. 6° - 7. 4° 8. 5° ---
8. 5° - ---
Note:
For screen sizes of 25 to 300 inches not indicated on the projection tables, use the formulas on page 1.
Page 3
Visual Systems
LT154/155/156 Installation Data
Desktop and Ceiling Mount
Cabinet Dimensions
The following diagrams show the cabinet dimensions for the LT154/155/156. 1. 8
10. 47
R1
. 10
R
1. 1 0
R 1. 10
R1
0. 669
. 10
0. 197
1. 59
2. 49
8. 15
Page 4
Visual Systems
LT154/155/156 Installation Data
Desktop and Ceiling Mount
Cabinet Dimensions (continued)
The following diagrams show the cabinet dimensions for the LT154/155/156. For millimeters multiply by 25. 4.
4. 83 4. 09
0. 945
Rev. 1. 8
2. 99
9. 86
M4*8 2. 76
3. 44 4. 07 R 5. 20
Ø 2. 17 3. 44 R 5. 20 0. 14
0. 551
4. 49
R 5. 20
4. 06
0. 098
2. 68
7. 64
M4*8
9. 07
4. 83
M4*8
0. 689
Page 5
Visual Systems
LT154/155/156 Installation Data
Desktop and Ceiling Mount
Ceiling Mount Dimensions (Model #: LT55CM)
The following diagrams show ceiling mount dimensions for the LT154/155/156. [. . . ] NOTE 2: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps.
Page 8 [. . . ]
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