
Chapter 7
TroubleshootingDocument camera issues
Use the following table to troubleshoot issues with your document camera.
Issue Solution
No image displays or 
appears.
• Turn off your document camera (see page16). 
Securely connect all cables and connect the 
camera’s AC adapter to a power outlet. Turn on 
your document camera.
• Adjust the zoom dial. The camera may be on a 
blank section of your document.
• Ensure the output switches on the side panel are 
set to the proper image output:
– VGA DVI-D or Composite on the side panel
– NTSC or PAL on the bottom of your document 
camera
No image displays after 
you restart your 
computer. Document 
camera is connected 
through a USB hub.
1. Turn off your document camera, and then wait 
several seconds.
2. Turn on your document camera again.
The image is out of focus. • Press the auto focus   button.
• Use the manual focus.
• Move the camera further away from the object.
The image is scrambled 
or black and white when 
a television is the display 
device.
Ensure the NTSC/PAL switch beneath the projector is 
set correctly.