BenQ SP890 user manual Troubleshooting, Problem Cause Remedy

English

Troubleshooting

Problem	Cause	Remedy
		Plug the power cable into the AC inlet on the
	There is no power from the power	rear of the projector, and plug the power cable
		into to the power outlet. If the power outlet
	cable.
		has a switch, make sure that it is switched on.
The projector does not
		(See page 20.)
turn on.
	Attempting to turn the projector on	Wait until the cooling down process has
	again during the cooling process.	completed.
	The lamp cover is not securely	Correctly attach the lamp cover. (See page 52.)
	attached.
	The video source is not turned on or	Turn the video source on and check that the
		signal cable is connected correctly. (See page
	connected correctly.
		17.)
No picture.	The projector is not correctly	Check the connection. (See page 17.)
	connected to the input source device.
	The input source has not been	Select the correct input source with the Source
		keys on the remote control or SOURCE on the
	correctly selected.
		projector. (See page 21.)
Image is unstable.	The connection cables are not securely	Correctly connect the cables to the
	connected to the projector or the	appropriate terminals. (See page 17.)
	signal source.
	The projection lens is not correctly	Adjust the focus of the lens using the focus
	focused.	ring. (See page 25.)
Picture is blurred.
	The projector and the screen are not	Adjust the projection angle and direction as
		well as the height of this projector if necessary.
	aligned properly.
		(See page 25.)
	The batteries are out of power.	Replace both of the batteries with new ones.
		(See page 7.)
Remote control does
	There is an obstacle between the	Remove the obstacle. (See page 7.)
not work correctly.	remote control and the projector.
	You are too far away from the	Stand within 8 meters (26.2 feet) of the
	projector.	projector. (See page 7.)

56 Additional information