Viewsonic PJD7820HD Manual De Usuario

55

There is no power from the power 
cord.

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.

Attempting to turn the projector on 
again during the cooling process.

Wait until the cooling down process has 
completed.

The video source is not turned on or 
connected correctly.

Turn the video source on and check that the 
signal cable is connected correctly.

The projector is not correctly 
connected to the input signal device.

Check the connection.

The input signal has not been 
correctly selected.

Select the correct input signal with the 
SOURCE key on the projector or remote 
control.

The projection lens is not correctly 
focused.

Adjust the focus of the lens using the focus 
ring.

The projector and the screen are not 
aligned properly.

Adjust the projection angle and direction as 
well as the height of the projector if necessary.

The battery is out of power.

Replace the battery with a new one.

There is an obstacle between the 
remote control and the projector.

Remove the obstacle.

You are too far away from the 
projector.

Stand within 8 meters (26 feet) of the 
projector.