Page 1
Visual Systems Division
Technical Bulletin
MultiSync LT80 Installation Data
Desk Top and Ceiling Mount
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
Page1
Page 2
Visual Systems Division
A TEXAS INSTRAMENTS TECHNOLOGY
Technical Bulletin
MultiSync LT80 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 6.23"
RGB
AUDIO
RGB
AUDIO
WARNUNG HEISS
ATTENTION CHAUD
CAUTION HOT
RGB OUTPUT
RGB INPUT
•‚‰·’•ˆÓ
R
AUDIO
S-VIDEO
VIDEO
L(MONO)
VIDEO INPUT
PC CONTROL
DLP
Screen Top
Screen Center
5.41"
B
α
A
Horizontal
Lens
Offset
Distance Chart
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
Screen Size A B C
1.25"
MultiSync LT
80
αα
Note:
For screen sizes of 24 to 300 inches not indicated on the projection tables, use the formulas on page 1.
Page2
Page 3
Visual Systems Division
Technical Bulletin
MultiSync LT80 Installation Data
Desk Top and Ceiling Mount
Projection Distance and Screen Size for Desktop
The following diagram shows the relationship between projector position and the screen.
Desktop System
C
Screen Center
A
Screen Bottom
B
Desk Top Level
α
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.OPERATION IS SUBJECT TO THE FOLLOWING
TWO CONDITIONS•G(1)THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE,AND (2) THIS DEVICE MUST
ACCEPT ANY INTERFERENCE RECEIVED,INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
THIS CABINET IS CONSTRUCTED OF PLASTIC(ABS).
THIS CLASS A DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE-CAUSING
EQUIPMENT REGULATIONS.
CET APPAREIL NUMERIQUE DE LA CLASSE A RESPECTE TOUTES LES EXIGENCES DU REGLEMENT SUR LE MATERIEL
BROUILLEUR DU CANADA.
Distance Chart
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
3.33"
Screen Size A B C
αα
Note:
For screen sizes of 24 to 300 inches not indicated on the projection tables, use the formulas on page 1.
Page3
Page 4
Visual Systems Division
Technical Bulletin
MultiSync LT80 Installation Data
Desk Top and Ceiling Mount
Cabinet Dimensions
The following drawings show the cabinet dimensions for the MultiSync LT80.
Dimensions are in inches. For millimeters multiply by 25.4.
12.78"
4.80"
.67" 3.86"
MultiSync LT
80
RGB
AUDIO
RGB OUTPUT
PC CONTROL
RGB INPUT
VIDEO
L(MONO)RAUDIO
VIDEO INPUT
9.70"
-
MENU
ENTER
SELECT
3.38"
AUDIO
.59"
+
ADJUST
2.52"
1.14" 10.28"
RGB
S-VIDEO
9.09"
.10"
9.25"
9.76"
POWER
PUSH ON/OFF
4.06"
STATUS
.41"
.87"
2.46"
8.07"
.59"
.59"
4.72".59"
5.31"
Page4
Page 5
Visual Systems Division
Technical Bulletin
MultiSync LT80 Installation Data
Desk Top and Ceiling Mount
Ceiling Mount Dimensions
The following drawings show the dimensions for the MultiSync LT80 Ceiling Mount.
Dimensions are in inches. For millimeters multiply by 25.4.
66° TYP
24° TYP
33° TYP
Ø 1.93"
4X SLOTS
.25" x .5"
8.41"
5.22"
Ø 3.66"
.47"
Top View
.53"
2.71" TYP
4.54"
Front View
4X Ø .406"
Ø .38" TYP
3.64"
.25"
2.75"
7.41"
5.79"
5.52"
5° UP
15° DOWN
Side View
Page5
Loading...