Troubleshooting - BenQ LW600ST User Manual

Troubleshooting

The projector does not turn on.
There is no power from the power cord.
Attempting to turn the projector on again
during the cooling process.
No picture
The video source is not turned on or
connected correctly.
The projector is not correctly connected to
the input signal device.
The input signal has not been correctly
selected.
Blurred image
The projection lens is not correctly focused.
The projector and the screen are not aligned
properly.
The lens cover is still closed.
Abnormal image
The image is abnormal.
Remote control does not work.
The batteries are out of power.
There is an obstacle between the remote
control and the projector.
You are too far away from the projector.
The password is incorrect.
You do not remember the password.
Cause
Cause
Cause
Cause
Cause
Cause
Plug the power cord into the AC power jack 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.
Wait until the cooling down process has completed.
Turn the video source on and check that the signal
cable is connected correctly.
Check the connection.
Select the correct input signal with the SOURCE key.
Adjust the focus of the lens using the focus ring.
Adjust the projection angle and direction as well as the
height of the projector if necessary.
Open the lens cover.
• Ensure the video source cable is connected
properly, and that the video source is turned on.
• Ensure that the air intake or exhaust is not
blocked.
Replace both of the batteries with new ones.
Remove the obstacle.
Stand within 8 meters (26 feet) of the projector.
See Entering the password recall procedure on page
24.
Remedy
Remedy
Remedy
Remedy
Remedy
Remedy
Troubleshooting 47