Digital Projector Commuter Series User's Manual Model CP120c
Troubleshooting 43
Troubleshooting
The projector does not turn on.
No picture.
Image is unstable
.
Image is blurred.
Cause Remedy
There is no power from the power 
cable.
Plug the power cord into the AC inlet on the 
projector, and plug the power cord into the 
power outlet. If the power outlet has a switch, 
make sure that it is switched on. See "Start 
up" on page 21 for details.
Attempting to turn the projector on 
again during the cooling process.
Wait until the cooling down process has 
completed. See "Shutdown" on page 27 for 
details.
Cause Remedy
The video source is not turned on or 
connected correctly.
Turn the video source on and check that the 
signal cable is connected correctly. See 
"Connection" on page 16 for details.
The projector is not correctly 
connected to the input source device.
Check the connection. See "Connection" on 
page 16 for details.
The input signal has not been 
correctly selected.
Select the correct input signal with the 
SOURCE button on the projector or remote 
control. See "Switching input signal" on page 
26 for details.
The lens cover is not open. Slide open the lens cover.
Cause Remedy
The connection cables are not 
securely connected to the projector or
the signal source.
Correctly connect the cables to the
appropriate terminals. See "Connection" on 
page 16 for details.
Cause Remedy
The projection lens is not correctly 
focused.
Adjust the focus of the lens using the focus 
ring. See "Fine-tuning the image size and 
clarity" on page 24 for details.
The projector and the screen are not 
aligned properly.
Adjust the projection angle and direction as 
well as the height of the unit if necessary. See 
"Obtaining a preferred projected image size" 
on page 12 for details.
The lens cover is not open. Slide open the lens cover.










