English

Troubleshooting

The projector does not turn on.

Cause

Remedy

 

 

There is no power from the power

Plug the power cord into the AC inlet on the

projector, and plug the power cord into the

cable.

power outlet. If the power outlet has a switch,

 

make sure that it is switched on.

 

 

Attempting to turn the projector on

Wait until the cooling down process has

again during the cooling process.

completed.

 

 

No picture

Cause

Remedy

 

 

The video source is not turned on or

Turn the video source on and check that the

connected correctly.

signal cable is connected correctly.

 

 

The projector is not correctly

Check the connection.

connected to the input signal device.

 

 

 

The input signal has not been

Select the correct input signal with the

SOURCE key on the projector or remote

correctly selected.

control.

 

 

 

Blurred image

Cause

Remedy

 

 

The projection lens is not correctly

Adjust the focus of the lens using the focus

focused.

ring.

 

 

The projector and the screen are not

Adjust the projection angle and direction as

aligned properly.

well as the height of the unit if necessary.

 

 

Remote control does not work

Cause

Remedy

 

 

The battery is out of power.

Replace the battery with new one.

There is an obstacle between the

Remove the obstacle.

remote control and the projector.

 

 

 

You are too far away from the

Stand within 7 meters (23 feet) of the

projector.

projector.

 

 

The password is incorrect

 

Cause

Remedy

 

 

You do not remember the password.

Please see "Entering the password recall

procedure" on page 28 for details.

 

 

 

62 Troubleshooting

Page 62
Image 62
BenQ SP840 user manual Troubleshooting