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...

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
Downloaded From projector-manual.com Acer Manuals 

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...

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...

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...

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...

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...

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...

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...

20
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...