BenQ 9H.J1P77.Q4A User Manual - Page 58

Troubleshooting

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Troubleshooting The projector does not turn on. Cause Remedy There is no power from the power cord. Attempting to turn the projector on again during the cooling process. 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. Wait until the cooling down process has completed. No picture Cause 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. The lens cover is still closed. Remedy 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 on the projector or remote control. Open the lens cover. Blurred image Cause The projection lens is not correctly focused. The projector and the screen are not aligned properly. The lens cover is still closed. Remedy 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. Remote control does not work. Cause Remedy The battery is out of power. There is an obstacle between the remote control and the projector. You are too far away from the projector. Replace the battery with a new one. Remove the obstacle. Stand within 8 meters (26 feet) of the projector. The password is incorrect. Cause You do not remember the password. Remedy Please see "Entering the password recall procedure" on page 28 for details. 58 Troubleshooting

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Troubleshooting
58
Troubleshooting
The projector does not turn on.
No picture
Blurred image
Remote control does not work.
The password is incorrect.
Cause
Remedy
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.
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.
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 lens cover is still closed.
Open the lens cover.
Cause
Remedy
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 lens cover is still closed.
Open the lens cover.
Cause
Remedy
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.
Cause
Remedy
You do not remember the password.
Please see
"Entering the password recall
procedure" on page 28
for details.