Troubleshooting, Image is blurred – BenQ CP120 User Manual
Page 59
Troubleshooting
51
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
for details.
Attempting to turn the projector on
again during the cooling process.
Wait until the cooling down process has
completed. See
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
for details.
The projector is not correctly
connected to the input source device.
Check the connection. See
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
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
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
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.