PE8720 Digital Projector
Ceiling Mounting Guide
Welcome
Copyright
Copyright 2005 by BenQ Corporation. All rights reserved. No part of this publication may be reproduced, transmitted,
transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any
means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of
this company.
Disclaimer
BenQ Corporation makes no representations or warranties, either expressed or implied, with respect to the contents
hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Further, BenQ
Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof
without obligation of this company to notify any person of such revision or changes.
Safety Instructions
1. Follow the instructions in this guide when installing the projector with this bracket. Improper or inadequate
installation could cause the projector to fall and cause injures.
2. Make sure the installation is secure enough to bear the weight of all and withstand vibrations.
3. Use only the parts provided with the bracket, and any parts (commercially available) that are specified in this guide.
4. Do not modify the bracket or the parts provided with the bracket.
5. Do not use damaged parts. If any parts become damaged, contact your dealer.
6. All bolts and screws must be tightened securely.
7. Make sure not to block any ventilation openings when installing the projector.
8. Do not install the projector in a location that is subject to high levels of dust or humidity.
9. Do not install the projector in a location that is exposed to direct sunlight or in a location that is subject to extreme
fluctuations in temperature (such as near an air conditioner).
10. Clean only with a dry cloth.
11. Special techniques and experience are required when installing the projector with this bracket. It is recommended
that you contact your dealer to install the projector for you.
12. Once the projector is installed, safety checks should be conducted on a regular basis.
Table of Contents
Packing Parts List.....................................................................................................................................................................3
Projector Installation and Throw Distance Chart..................................................................................................................4
Installing a Projector with the Ceiling Bracket.......................................................................................................................5
Adjusting the Ceiling Bracket..................................................................................................................................................8
Specifications and Diagrams .................................................................................................................................................10
2 Copyright
Packing Parts List
U-PLATE NUTS x 4 PROJECTOR ADAPTER
CEILING ADAPTER PIPE M3 SCREWS x 8
M4 SCREWS x 4 SQUARE TUBE M6 SCREWS x 4
TUBE
Names of Parts
ADJUSTMENT ASSEMBLY BOLTS x 7 (TUBE BOLTS x 2, L – ADJUST
BOLT x 2, TUBE BOLTS x 2)
U - PLATE
CEILING ADAPTER
M4 SCREWS x 4
TUBE BOLTS x 2
L-ADJUST BOLTS x 2
M3 SCREWS x 2
TUBE
NUTS x 4
PIPE
TUBE BOLTS x 3
M3 SCREWS x 2
ADJUSTMENT ASSEMBLY
M3 SCREWS x 4
SQUARE TUBE
M6 SCREWS x 4
PROJECTOR ADAPTER
Packing Parts List 3
stal
lation for a 4:3 r
o scr
een
4:3 (standar
) r
tio scr
en dimension table:
Ceili
g I
on
oor I I
stal
lation
Projector Installation and Throw Distance Chart
Installation for a 16:9 screen
Ceiling Installation
Diagonal
Offset
Height
Projection Distance
Center of the lens
Screen
Ceiling
16:9 (widescreen) ratio screen dimension table
Screen Dimensions (inch / cm) Projection Distance (inch / cm) Offset (inch / cm)
Diagonal Width Height
50 / 127 44 / 111 25 / 62 78 / 199 106 / 270 2.5 / 6.2 -27.0 / -68.5
60 / 152 52 / 133 29 / 75 94 / 239 128 / 324 2.9 / 7.5 -32.4 / -82.2
70 / 178 61 / 155 34 / 87 110 / 279 149 / 379 3.4 / 8.7 -37.8 / -95.9
80 / 203 70 / 177 39 / 100 126 / 319 171 / 433 3.9 / 10.0 -43.1 / -109.6
90 / 229 78 / 199 44 / 112 141 / 359 192 / 487 4.4 / 11.2 -48.5 / -123.3
100 / 254 87 / 221 49 / 125 156 / 400 213 / 541 4.9 / 12.5 -53.9 / -137.0
110 / 279 96 / 244 54 / 137 172 / 438 234 / 595 5.4 / 13.7 -59.3 / -150.7
120 / 305 105 / 266 59 / 149 188 / 478 256 / 649 5.9 / 14.9 -64.7 / -164.4
130 / 325 113 / 288 64 / 162 204 / 518 277 / 703 6.4 / 16.2 -70.1 / -178.1
140 / 356 122 / 310 69 / 174 220 / 558 298 / 757 6.9 / 17.4 -75.5 / -191.8
150 / 381 131 / 332 74 / 187 235 / 598 319 / 811 7.4 / 18.7 -80.9 / -205.5
160 / 406 139 / 354 78 / 199 251 / 638 341 / 865 7.8 / 19.9 -86.3 / -219.2
170 / 432 148 / 376 83 / 212 267 / 677 362 / 919 8.3 / 21.2 -91.7 / -232.9
180 / 457 157 / 398 88 / 224 282 / 717 383 / 973 8.8 / 22.4 -97.1 / -246.6
190 / 483 166 / 421 93 / 237 298 / 757 405 / 1028 9.3 / 23.7 -102.5 / -260.3
200 / 508 174 / 443 98 / 249 314 / 797 426 / 1082 9.8 / 24.9 -107.9 / -274.0
250 / 635 218 / 553 123 / 311 392 / 996 532 / 1352 12.3 / 31.1 -134.8 / -342.4
300 / 762 261 / 664 147 / 374 471 / 1195 639 / 1622 14.7 / 37.4 -161.8 / -410.9
Min distance
(with max zoom)
Floor Installation
Diagonal
Height
Offset
Max distance
(with min zoom)
Screen
Center of the lens
Projection Distance
Upper Lower
Floor
Installation for a 4:3 screen
IInstal
lation for a 4:3 r
Ceili
ng I
nststallalation
Diagonal
Offset
Image Height
4:3 (standar
Screen Dimensions (inch / cm) Projection Distance (inch / cm) Offset (inch / cm)
Diagonal Width Height
50 / 127 40 / 102 30 / 76 72 / 184 98 / 249 3.0 / 7.6 - 33.0 / -83.8
60 / 152 48 / 122 36 / 91 87 / 221 117 / 298 3.6 / 9.1 -39.6 / -100.6
70 / 178 56 / 142 42 / 107 102 / 258 137 / 348 4.2 / 10.7 -46.2 / -117.3
80 / 203 64 / 163 48 / 122 116 / 294 157 / 398 4.8 / 12.2 -52.8 / -134.1
90 / 229 72 / 183 54 / 137 130 / 331 176 / 448 5.4 / 13.7 -59.4 / -150.9
100 / 254 80 / 203 60 / 152 145 / 368 196 / 497 6.0 / 15.2 -66.0 / -167.6
110 / 279 88 / 224 66 / 168 159 / 405 215 / 547 6.6 / 16.8 -72.6 / -184.4
120 / 305 96 / 244 72 / 183 174 / 442 235 / 597 7.2 / 18.3 -79.2 / -201.2
130 / 325 104 / 264 78 / 198 188 / 478 254 / 646 7.8 / 19.8 -85.8 / -217.9
140 / 356 112 / 284 84 / 213 203 / 515 274 / 696 8.4 / 21.3 -92.4 / -234.7
150 / 381 120 / 305 90 / 229 217 / 552 294 / 746 9.0 / 22.9 -99.0 / -251.5
160 / 406 128 / 325 96 / 244 232 / 589 313 / 796 9.6 / 24.4 -105.6 / -268.2
170 / 432 136 / 345 102 / 259 247 / 626 333 / 845 10.2 / 25.9 -112.2 / -285.0
180 / 457 144 / 366 108 / 274 261 / 662 352 / 895 10.8 / 27.4 -118.8 / -301.8
190 / 483 152 / 386 114 / 290 275 / 699 372 / 945 11.4 / 29.0 -125.4 / -318.5
200 / 508 160 / 406 120 / 305 290 / 736 392 / 995 12.0 / 30.5 -132.0 / -335.3
250 / 635 200 / 508 150 / 381 362 / 920 489 / 1243 15.0 / 38.1 -165.0 / -419.1
300 / 762 239 / 610 180 / 457 435 / 1104 587 / 1492 18.0 / 45.7 -198.0 / -502.9
There is 3% ~ 5% tolerance among these numbers due to optical component limits.
* 1 m = 3.28 feet, 1 feet = 0.305 m
d) r
atio scr
Projection Distance
Center of the lens
Screen
atio scr
een dimension table:
een
Ceiling
Min distance
(with max zoom)
FlFloor
nstal
Diagonal
Image Height
Max distance
(with min zoom)
lation
Screen
Center of the lens
Offset
Projection Distance
Upper Lower
Floor
4 Projector Installation and Throw Distance Chart
Installing a Projector with the Ceiling Bracket
Overview
Q Diagram of completed installation
Q Ceiling Mount Device
Installation Procedure
STEP A
Insert the U-PLATE into the CEILING ADAPTER, and tighten two M4 SCREWS (from the bottom)
into the screw holes. Then attach the top part to the ceiling.
M4 SCREWS
U-PLATE
CEILING ADAPTER
Ceiling mount screws
(not included)
Installing a Projector with the Ceiling Bracket 5
STEP B
Install the TUBE and the U-PLATE with 2 sets of BOLTS & NUTS (TUBE BOLT).
NUTS x 2
TUBE BOLTS x 2
TUBE
STEP C
STEP D
Install the PIPE and the TUBE with 2 sets of BOLTS & NUTS (L-ADJUST BOLT).
L-ADJUST BOLTS x2
Install the base-assembly.
STEP D1 Combine the SQUARE TUBE and the
PIPE with 2 BOLTS.
NUTS x 2
PIPE
STEP D2 Install the ADJUSTMENT ASSEMBLY to the
SQUARE TUBE with one BOLT and 2 M3 SCREWS.
6 Installing a Projector with the Ceiling Bracket
M3 SCREWS BOLT
STEP E
Assemble the PROJECTOR ADAPTER and PROJECTOR with 4 M6 SCREWS.
M6 SCREW
STEP F
BASE-ASSEMBLY
Slide the projector with adapter into the ceiling assembly and fix the projector with 4 M3 SCREWS.
Ceiling mount bracket
M3 SCREW
Installation finished.
Installing a Projector with the Ceiling Bracket 7
Adjusting the Ceiling Bracket
Height Adjustment
1. Make sure to remove the projector first.
2. Loosen the nuts securing to the two L-ADJUST BOLTS.
3. Remove the L-ADJUST BOLTS from the PIPE.
4. Adjust to the correct position for the height of the screen. The height can be
adjusted to 309 mm or any value in a range between 639 mm and 849 mm in
increments of 30 mm.
5. Insert the L-ADJUST BOLT back into the PIPE, and then re-attach the nuts
previously removed.
Maximum Height (non-adjustable)
Minimum Height
(non-adjustable)
8 Adjusting the Ceiling Bracket
A
Horizontal Angle Adjustment
5
1. Hold the projector’s right and left sides and push it up slightly.
2. Adjust the horizontal angle so that it is correct for the orientation of the screen.
3. The swivel angle can be set within a range of negative to positive 30 degrees.
30
Ver t ic a l An g l e Ad j ust m ent
1. Hold the projector’s right and left sides.
2. Adjust the vertical angle so that it is correct for the orientation of the screen.
3. The tilt angle can be set in a range between –5 and +30 degrees.
30
Swing Adjustment
1. Slightly loosen the M4 SCREW connecting the SQUARE TUBE and ADJUSTMENT ASSEMBLY as shown in the
picture.
2. Adjust the angle so that it is correct for the orientation of the screen.
3. Re-tighten the M4 SCREW.
4. The swing angle can be set within a range of negative to positive 30 degrees.
M4 SCREW
M4 SCREW
15
15
djusting the Ceiling Bracket 9
Specifications and Diagrams
Specifications
Adjustment Range
Height
Horizontal angle
Vertical angle
Swing angle
We ig h t 4.2 kg
Loading 4.5 kg
309 mm, 639 mm, 669 mm, 699 mm, 729 mm, 759 mm, 789 mm, 819 mm and 849 mm.
–30 to +30 degrees
-5 to +30 degrees
-15 to +15 degrees
Diagrams
Q Left View Q Front view Q Right view Q Rear view
10 Specifications and Diagrams
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