Optoma DC450 - Manual (Page 24)

22
Troubleshooting
When using the document camera :
Problem Cause Solution
Cannot be powered on
normally.
The AC adapter is not
correctly connected to the
wall outlet or the document
camera.
Re-connect one end of the
AC adapter to the docu-
ment camera and the other
end to a wall outlet.
Cannot take pictures and
video clips.
Out of memory.
Free some space from
the SD / MMC card or the
internal memory.
Using a “protected” SD
card.
Set the SD card to be writ-
ten in.
No image output after
connecting.
The document camera is
not correctly connected to
the external device.
Re-connect all related
cables with the external
device correctly.
Incorrect input type of
display output device.
Set up correct input type of
display output device.
Incorrect supported
resolution of display output
device.
Set up correct supported
resolution of display output
device.
Incorrect output port
selected by output swtich
on document camera.
Set up correct output port
by output switch.
PC pass through button
indicator is on.
Press [ ] PASSTHROUGH
button to turn off the
function.