User manual NEC MT810

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Manual abstract: user guide NEC MT810

Detailed instructions for use are in the User's Guide.

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

Formulas
Units: Inches
M = 1. 25 x W / 33. 02 A = C / COSINE  B = (8 x M) + 5. 598 C (Zoom Wide) = (53. 2 x M) - 3. 37 C (Zoom Telephoto) = C (Zoom Wide) x 1. 3055 D = (3 x W / 8) - E E = (8 x M) + 3. 433  = TAN
-1

Units: Millimeters
M = 1. 25 x W / 1. 3 A = C / COSINE  B = (8 x M) + 142. 2 C (Zoom Wide) = (53. 2 x M) - 85. 609 C (Zoom Telephoto) = C (Zoom Wide) x 1. 3055 D = 25. 4 x (3 x W / 8) - E E = (8 x M) + 87. 2  = TAN -1 ((E - 87. 2) / C)

((E - 3. 433) / C)

W = Width of Screen A = Distance between lens center and screen center B = Vertical distance between top of NEC ceiling mount and screen center C = Horizontal throw distance between screen surface and projector lens D = Vertical distance between projector base and screen bottom E = Vertical distance between desk top level and screen center

Page1

Visual Systems Division Technical Bulletin

MultiSync® MT810/MT1020 Installation Data
Desk Top and Ceiling Mount

Projection Distance and Screen Size for Ceiling Mount
The following shows the proper relative positions of the projector and screen.  [. . . ] If the figures on the tables do not match the figures in the formulas,  use the figures in the table. 

Formulas
Units: Inches
M = 1. 25 x W / 33. 02 A = C / COSINE  B = (8 x M) + 5. 598 C (Zoom Wide) = (53. 2 x M) - 3. 37 C (Zoom Telephoto) = C (Zoom Wide) x 1. 3055 D = (3 x W / 8) - E E = (8 x M) + 3. 433  = TAN
-1

Units: Millimeters
M = 1. 25 x W / 1. 3 A = C / COSINE  B = (8 x M) + 142. 2 C (Zoom Wide) = (53. 2 x M) - 85. 609 C (Zoom Telephoto) = C (Zoom Wide) x 1. 3055 D = 25. 4 x (3 x W / 8) - E E = (8 x M) + 87. 2  = TAN -1 ((E - 87. 2) / C)

((E - 3. 433) / C)

W = Width of Screen A = Distance between lens center and screen center B = Vertical distance between top of NEC ceiling mount and screen center C = Horizontal throw distance between screen surface and projector lens D = Vertical distance between projector base and screen bottom E = Vertical distance between desk top level and screen center

Page1

Visual Systems Division Technical Bulletin

MultiSync® MT810/MT1020 Installation Data
Desk Top 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. 

Ceiling Mount System
C 6. 93"

B

A Screen Center

4. 38"

Horizontal Lens Offset
MultiSync MT1020

Zoom Lens (Wide)
  (=sin)  (=cos) Screen Width Diagonal (4:3) A inch inch inch mm B inch mm C inch mm D inch mm degree 8. 86 0. 1539 0. 9881 48 60 94. 4 2398. 6 20. 1 511. 4 93. 3 2370 0. 0 0. 5 8. 81 0. 1531 0. 9882 56 70 110. 8 2813. 2 22. 6 573. 0 109. 4 2780 0. 6 15. 1 8. 77 0. 1525 0. 9883 64 80 127. 1 3227. 8 25. 0 634. 5 125. 6 3190 1. 2 29. 7 8. 75 0. 1521 0. 9884 72 90 143. 4 3642. 4 27. 4 696. 0 141. 7 3600 1. 7 44. 3 8. 73 0. 1518 0. 9884 80 100 159. 6 4053. 0 29. 8 757. 6 157. 7 4006 2. 3 59. 0 8. 70 0. 1513 0. 9885 96 120 192. 1 4880. 2 34. 7 880. 7 189. 9 4824 3. 5 88. 2 8. 67 0. 1508 0. 9886 120 150 241. 1 6123. 0 41. 9 1065. 3 238. 3 6053 5. 2 132. 0 8. 65 0. 1504 0. 9886 144 180 289. 9 7362. 8 49. 2 1249. 9 286. 6 7279 6. 9 175. 9 8. 64 0. 1503 0. 9886 160 200 322. 5 8191. 0 54. 1 1373. 0 318. 8 8098 8. 1 205. 1 8. 63 0. 1500 0. 9887 192 240 387. 7 9846. 4 63. 7 1619. 1 383. 3 9735 10. 4 263. 6 8. 62 0. 1499 0. 9887 216 270 436. 5 8. 61 0. 1497 0. 9887 240 300 485. 4

D

11086. 2 12329. 0 71. 0 1803. 7 431. 5 10961 12. 1 307. 4 78. 3 1988. 4 479. 9 12190 13. 8 351. 3

Note:
For screen sizes of 60 to 300 inches not indicated on the projection tables,  use the formulas on page 1. All calculations are with the lens (Wide setting). 

Page2

Visual Systems Division Technical Bulletin

MultiSync® MT810/MT1020 Installation Data
Desk Top and Ceiling Mount

Projection Distance and Screen Size for Ceiling Mount
The following shows the proper relative positions of the projector and screen. For millimeters multiply by 25. 4. 

0. 2"

1. 73"
11. 28"
REMOTE CONTROL INPUT OUTPUT PC CONTROL DC12V/400mA OUT PUT VIDEO INPUT AUDIO INPUT L/MONO R

10. 5°

5. 71" 0. 39"

MultiSync MT 1020

S-VIDEO INPUT

AUDIO OUT

L/MONO RGB INPUT 1

R AUDIO RGB MONITOR OUT

0. 35"

3. 43"

RGB INPUT 2

AUDIO

4. 72"

2. 76"

0. 08"

12. 68"

9. 92"

10. 31"
7. 09" 1. 38"

ADJUST

FOCUS

ZOOM

11. 22" 1. 42"

PUSH ON/OFF POWER

Ø 1. 38"

Page6

2. 11"

SELECT

ENTER

MENU

STATUS

11. 93"

1. 46"

1. 1"

-

+

8. 94"

0. 71"

15. 35"
+ + -

+
-

Visual Systems Division Technical Bulletin

MultiSync® MT810/MT1020 Installation Data
Desk Top and Ceiling Mount

Ceiling Mount Dimensions
The following diagrams show the ceiling mount dimensions for the MultiSync MT810/MT1020. For millimeters multiply by 25. 4. 

Ø . 2"

66° TYP 24° TYP 33° TYP

Ø 1. 93" 8. 21" 7. 59" Ø 3. 66"
Ø . 38 TYP

6. 60" 6. 26" 4. 65"

0. 5"

2. 49" 1. 88"

0. 5" 3. 73" 4. 88" 7. 39" 10. 42" 10. 82' 11. 32"

Top View

2. 5"

5° UP 15° DOWN

Front View

Side View

Page7 [. . . ] For millimeters multiply by 25. 4. 

0. 2"

1. 73"
11. 28"
REMOTE CONTROL INPUT OUTPUT PC CONTROL DC12V/400mA OUT PUT VIDEO INPUT AUDIO INPUT L/MONO R

10. 5°

5. 71" 0. 39"

MultiSync MT 1020

S-VIDEO INPUT

AUDIO OUT

L/MONO RGB INPUT 1

R AUDIO RGB MONITOR OUT

0. 35"

3. 43"

RGB INPUT 2

AUDIO

4. 72"

2. 76"

0. 08"

12. 68"

9. 92"

10. 31"
7. 09" 1. 38"

ADJUST

FOCUS

ZOOM

11. 22" 1. 42"

PUSH ON/OFF POWER

Ø 1. 38"

Page6

2. 11"

SELECT

ENTER

MENU

STATUS

11. 93"

1. 46"

1. 1"

-

+

8. 94"

0. 71"

15. 35"
+ + -

+
-

Visual Systems Division Technical Bulletin

MultiSync® MT810/MT1020 Installation Data
Desk Top and Ceiling Mount

Ceiling Mount Dimensions
The following diagrams show the ceiling mount dimensions for the MultiSync MT810/MT1020.  [. . . ]

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