Acer c112 User Manual

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Appendices
Troubleshooting
If you experience a problem with your Acer projector, refer to the following 
troubleshooting guide. If the problem persists, please contact your local reseller 
or service center.
#
Problem
Solution
1
No image appears 
onscreen
Make sure all the cables are correctly connected as 
described in the "Getting Started" section.
Ensure none of the connector pins are bent or 
broken.
Make sure the projector is switched on.
2
Image is out of 
focus
Adjusts the focus ring on the projector lens.
Make sure the projection screen is within the 
required distance of 1.92 to 12.8 feet (0.6 to 4 
meters). Refer to the "How to Optimize Image Size 
and Distance" section for more information.
3
Image is too small 
or too large
Move the projector closer to or further from the 
screen.
Press "MENU" on the control panel or remote 
control. Go to "Aspect Ratio" and try different 
settings.
4
Image has slanted 
sides
If possible, reposition the projector so that it is 
centered on the screen and below the bottom of the 
screen.
5
Image is reversed
Select "Projection" on the OSD and adjust the 
projection direction.
6
The projector 
stops responding 
to all controls
If possible, turn off the projector, then unplug the 
power cord and wait at least 30 seconds before 
reconnecting power.