Acer He 720 Users Guide

							11
EnglishTurning the projector off
1 To turn the projector off, press and hold the power button. This message 
appears: Please press the power button again to complete the shutdown 
process. Press the power button again.
2 The LED power indicator will turn RED and blink rapidly after the projector 
is turned off, and the fan(s) will continue to operate for about 2 minutes to 
ensure that the system cools properly. (only supported under Instant 
Resume mode)
3 As long as the power cord remains plugged in, you can press the power 
button to turn the projector immediately back on anytime during the 2-
minute shutdown process. (only supported under Instant Resume mode)
4 Once the system has finished cooling, the LED power indicator will stop 
blinking and turn solid red to indicate standby mode.
5 It is now safe to unplug the power cord.
Warning indicators:
•Projector Overheated. Lamp will automatically turn off soon.
This onscreen message indicates that the projector has overheated. 
The lamp with automatically turn off, the projector will automatically 
shut down, and the LED temp indicator will turn solid red. Contact 
your local dealer or service center.
•Fan failed. Lamp will automatically turn off soon.
This onscreen message indicates that the fan has failed. The lamp will 
automatically turn off, the projector will automatically shut down, 
and the LED temp indicator will blink. Contact your local dealer or 
service center.
Note: Whenever the projector automatically shuts down and the 
LED lamp indicator turns solid red, contact your local reseller or 
service center.
Note: Functions vary depending on model definition.
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							12
English
Adjusting the Projected Image
Adjusting the Height of Projected Image
The projector is equipped with elevator feet for adjusting the height of image.
To raise/lower the image:
Use Tilt adjusting wheel to fine-tune the display angle.
Tilt adjusting wheel
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							13
EnglishHow to optimize image size and distance
Consult the table below to find the optimal image sizes achievable when the 
projector is positioned at a desired distance from the screen.
•SVGA/XGA series
If the projector is 2.0 m from the screen, good image quality is possible for 
image sizes between 46 and 50.
Note: Remind as below figure, the space of 88 cm height is 
required when located at 2.0 m distance.
Desired
Distance 
(m)
Screen sizeTopScreen sizeTop
(Min zoom) (Max zoom)
Diagonal 
(inch)
W (cm) x H 
(cm) From base to top 
of image (cm)
Diagonal 
(inch)
W (cm) x H 
(cm)From base to top 
of image (cm)

1 23 47 x 35 40 25 51 x 38 44
24693 x 708050103 x 7788
2.5 57 116 x 87 100 63 128 x 96 111
3 69 140 x 105 120 76 154 x 115 133
3.5 80 163 x 122 140 88 179 x 135 155
4 92 186 x 140 160 101 205 x 154 177
4.5 103 209 x 157 181 114 231 x 173 199
5 114 233 x 174 201 126 256 x 192 221
6 137 279 x 209 241 151 308 x 231 265
7 160 326 x 244 281 177 359 x 269 310
8 183 372 x 279 321 202 410 x 308 354
9 206 419 x 314 361 227 462 x 346 398
10 229 465 x 349 401 252 513 x 385 442
Zoom Ratio: 1.1x
50
4666464666
AC B
Height: 88 cm
from base to  
top of image
Height: 
80 cm
2.0 m
Desired Distance
Ma
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 si
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							14
English
•WXGA series
If the projector is 2.0 m from the screen, good image quality is possible for 
image sizes between 55 and 60.
Note: Remind as below figure, the space of 91 cm height is 
required when located at 2.0 m distance.
Desired
Distance 
(m)
Screen size Top Screen size Top
(Min zoom) (Max zoom)
Diagonal 
(inch)
W (cm) x H (cm) From base 
to top of 
image (cm)
Diagonal 
(inch)
W (cm) x H (cm)From base to 
top of image 
(cm)

1 27 59 x 37 41 30 65 x 40 45
1.5 41 88 x 55 62 45 97 x 60 68
255118 x 748360129 x 8191
2.5 68 147 x 92 103 75 161 x 101 113
3 82 176 x 110 124 90 194 x 121 136
3.5 96 206 x 129 145 105 226 x 141 159
4 109 235 x 147 165 120 258 x 161 181
4.5 123 265 x 165 186 135 290 x 181 204
5 137 294 x 184 207 150 323 x 202 227
6 164 353 x 221 248 180 387 x 242 272
7 191 412 x 257 289 210 452 x 282 317
8 218 471 x 294 331 240 516 x 323 363
9 246 529 x 331 372 270 581 x 363 408
10 273 588 x 368 413 300 645 x 403 453
Zoom Ratio: 1.1x
60
555555
AC B
Height: 91 cm
from base to  
top of image Height: 
83 cm
2.0 m
Desired Distance
Ma
x
 
s
cr
ee
n
 
siz
e
Min
 s
c
re
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n
 s
ize
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							15
English•720p series
If the projector is 3 m from the screen, good image quality is possible for image 
sizes between 80 and 87.
Note: Remind as below figure, the space of 130 cm height is 
required when located at 3 m distance.
Desired
Distance 
(m)
Screen sizeTopScreen sizeTop
(Min zoom) (Max zoom)
Diagonal 
(inch)
W (cm) x 
H (cm) From base to 
top of image 
(cm) Diagonal 
(inch)
W (cm) x 
H (cm)From base to top 
of image (cm) 

0.9 24 53 x 30 36 26 58 x 33 39
1 27 59 x 33 39 29 65 x 36 43
1.5 40 88 x 50 59 44 97 x 54 65
2 53 118 x 66 79 58 129 x 73 87
2.5 66 147 x 83 99 73 161 x 91 108
380176 x 9911887194 x 109130
3.5 93 206 x 116 138 102 226 x 127 152
4 106 235 x 132 158 117 258 x 145 173
4.5 120 265 x 149 178 131 290 x 163 195
5 133 294 x 165 197 146 323 x 181 216
6 159 353 x 199 237 175 387 x 218 260
7 186 412 x 232 276 204 452 x 254 303
9 239 529 x 298 355 262 581 x 327 390
10 266 588 x 331 395 291 645 x 363 433
10.5 279 618 x 347 414 306 677 x 381 455
11.8 314 694 x 390 466 34 761 x 428 511
Zoom Ratio: 1.1x
87
80800
AC B
Height: 130 cm
from base to  
top of image
Height: 
118 cm
3 m
Desired Distance
Max
 
s
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si
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Mi
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cr
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i
ze
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							16
English
•1080p series
If the projector is 3 m from the screen, good image quality is possible for image 
sizes between 74 and 90.
Note: Remind as below figure, the space of 130 cm height is 
required when located at 3 m distance.
Desired
Distance 
(m)
Screen sizeTopScreen sizeTop
(Min zoom) (Max zoom)
Diagonal 
(inch)
W (cm) x 
H (cm) From base to 
top of image 
(cm) Diagonal 
(inch)
W (cm) x 
H (cm)From base to top 
of image (cm) 

1.5 37 82 x 46 53 45 99 x 56 65
2 49 109 x 61 71 60 132 x 75 86
2.5 62 137 x 77 89 75 166 x 93 108
374164 x 9210790199 x 112130
3.5 86 191 x 108 125 105 232 x 130 151
4 99 219 x 123 143 120 265 x 149 173
4.5 111 246 x 138 160 135 298 x 168 194
5 123 273 x 154 178 150 331 x 186 216
6 148 328 x 184 214 179 397 x 224 259
7 173 383 x 215 250 209 464 x 261 302
8 197 437 x 246 285 239 530 x 298 346
9 222 492 x 277 321 269 596 x 335 389
10 247 546 x 307 357 299 662 x 373 432
Zoom Ratio: 1.2x
90
74744
AC B
Height: 130 cm
from base to  
top of image
Height: 
107 cm
3 m
Desired Distance
M
ax
 
s
cre
en
 
si
z
e
Mi
n 
s
cr
een 
s
iz
e
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							17
EnglishHow to get a preferred image size by adjusting 
distance and zoom
The table below shows how to achieve a desired image size by adjusting either 
the position or the zoom ring.
•SVGA/XGA series
To obtain an image size of 50 set the projector at a distance 2.0 m and 2.2 m 
from the screen.
Desired Image Size Distance (m) Top (cm)
Diagonal (inch)
W (cm) x H (cm)Max zoom
Min zoom
From base to top of 
image 

30 61 x 46 1.2 1.3 53
40 81 x 61 1.6 1.7 70
50102 x 762.02.288
60 122 x 91 2.4 2.6 105
70 142 x 107 2.8 3.1 123
80 163 x 122 3.2 3.5 140
90 183 x 137 3.6 3.9 158
100 203 x 152 4.0 4.4 175
120 244 x 183 4.8 5.2 210
150 305 x 229 5.9 6.6 263
180 366 x 274 7.1 7.9 315
200 406 x 305 7.9 8.7 351
250 508 x 381 9.9 10.9 438
300 610 x 457 11.9 526
Zoom Ratio: 1.1x
A
CD
B
Desired Distance 2.2 m2.0 m
Height: 88 cmfrom base to top 
of image
50Desired 
image size
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							18
English
•WXGA series
To obtain an image size of 60 set the projector at a distance 2.0 m and 2.2 m 
from the screen.
Desired Image Size Distance (m) Top (cm)
Diagonal (inch)
W (cm) x H (cm)Max zoom
Min zoom
From base to top of 
image 

30 65 x 40 1.0 1.1 45
40 86 x 54 1.3 1.5 61
50 108 x 67 1.7 1.8 76
60129 x 812.02.291
70 151 x 94 2.3 2.6 106
80 172 x 108 2.7 2.9 121
90 194 x 121 3.0 3.3 136
100 215 x 135 3.3 3.7 151
120 258 x 162 4.0 4.4 182
150 323 x 202 5.0 5.5 227
180 388 x 242 6.0 6.6 272
200 431 x 269 6.7 7.3 303
250 538 x 337 8.3 9.2 378
300 646 x 404 10.0 11.0 454
Zoom Ratio: 1.1x
A
CD
B
Desired Distance 2.2 m2.0 m
Height: 91 cmfrom base to top 
of image
60Desired 
image size
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							19
English•720p series
To obtain an image size of 60 set the projector at a distance 2.06 m and 2.26 m 
from the screen.
Desired Image Size Distance (m) Top (cm)
Diagonal (inch)
W (cm) x H (cm)Max zoom
Min zoom
From base to top of 
image 

26.5759 x 330.911.0039
3066 x 371.031.1345
4089 x 501.371.5159
60133 x 752.062.2689
70155 x 872.402.63104
80177 x 1002.753.01119
90199 x 1123.093.39134
100221 x 1253.433.76149
120266 x 1494.124.52178
150332 x 1875.155.65223
180398 x 2246.186.77267
250553 x 3118.589.41371
300664 x 37410.2911.29446
306677 x 38110.5011.52455
Zoom Ratio: 1.1x
A
CD
B
Desired Distance 2.26 m2.06 m
Height: 89 cmfrom base to top 
of image
60Desired 
image size
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English
•1080p series
To obtain an image size of 50 set the projector at a distance 1.7 m and 2.0 m 
from the screen.
Desired Image Size Distance (m) Top (cm)
Diagonal (inch)
W (cm) x H (cm)Max zoom
Min zoom
From base to top of 
image 

3066 x 371.01.243
4089 x 501.31.658
50111 x 621.72.072
60133 x 752.02.487
70155 x 872.32.8101
80177 x 1002.73.2116
90199 x 1123.03.6130
100221 x 1253.34.1144
120266 x 1494.04.9173
150332 x 1875.06.1217
180398 x 2246.07.3260
200443 x 2496.78.1289
250553 x 3118.410.1361
300664 x 37410.0***433
Zoom Ratio: 1.2x
A
CD
B
Desired Distance 2.0 m1.7 m
Height: 72 cmfrom base to top 
of image
50Desired 
image size
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