BenQ SP870 user manual Troubleshooting

Page 49

Troubleshooting

The projector does not turn on.

Cause	Remedy
	Plug the power cord into the AC inlet on the projector, and
There is no power from the power cable.	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	Wait until the cooling down process has completed.
the cooling process.

No picture

	Cause	Remedy
	The video source is not turned on or connected	Turn the video source on and check that the signal cable
	correctly.	is connected correctly.
	The projector is not correctly connected to the	Check the connection.
	input signal device.	Check the connection.
	input signal device.
	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.

Blurred image

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	Adjust the projection angle and direction as well as the
properly.	height of the projector if necessary.
The lens cover is still closed.	Open the lens cover.

Remote control does not work

Cause	Remedy
The batteries are out of power.	Replace the batteries with new ones.
There is an obstacle between the remote control	Remove the obstacle.
and the projector.
You are too far away from the projector.	Stand within 8 meters (26 feet) of the projector.

The password is incorrect

	Cause	Remedy
	You do not remember the password.	Please see "Entering the password recall procedure" on
	You do not remember the password.	page 25 for details.
		page 25 for details.

Troubleshooting 49

Image 49

Contents SP870 Digital Projector WelcomeTable of contents With all windows rolled up Important safety instructionsCigarette smoke may contaminate optical 3000 m 10000 feetImportant safety instructions Ceiling mounting the projector Introduction Projector featuresShipping contents Rear/lower side Projector exterior viewSee Connection on page 16 for connection details Quick-release foot Projection lens Lens capProjector Controls and functionsStarts the FAQ function. See Utilizing FAQ Remote controlYour own timer setting. See Setting DetailsMaking the remote control a wired control Remote control effective rangeOperating the Laser pointer 22. D. Zoom +Choosing a location Positioning your projectorObtaining a preferred projected image size Select your screen size Zoom Projection dimensionsConnecting a computer Connecting a computer or monitorConnection To connect the projector to a notebook or desktop computerComputer using the D-SUB/COMP. Socket, not the DVI-Dsocket Connecting a monitorTo connect the projector to a monitor With a VGA cable With a VGA to DVI-A cableConnecting Audio Connecting Video source devicesBest video quality Better video qualityTo connect the projector to a DVI-D source device Connecting a DVI-D source deviceTo connect the projector to a Component Video source device Connecting a Component Video source deviceWith a Component Video cable With a Component Video to VGA D-Sub adaptor cableTo connect the projector to an S-Video/Video source device Connecting an S-Video or a composite Video source deviceStarting up the projector OperationUsing a security cable lock Using the On-Screen Display OSD menusUse / to highlight the System Setup Basic menu Securing the projectorSetting a password Utilizing the password functionIf you forget the password To leave the OSD menu, press MENU/EXITChanging the password Entering the password recall procedureDisabling the password function Changing Color Space Switching input signalAdjusting the projection angle Adjusting the projected imageAuto-adjusting the image Fine-tuning the image size and clarityCorrecting keystone Magnifying and searching for detailsPress About the aspect ratio Selecting the aspect ratioSelecting a picture mode Using Wall ColorPC input signals D-Sub/Comp. analog RGB, and DVI-D DVI-D Optimizing the imageFine-tuning the image quality in user modes Selecting a color temperature Adjusting Brilliant ColorAbout color temperatures 3D Color ManagementRepeat steps 3 to 6 for other color adjustments Setting the presentation timerPress MENU/EXIT to exit and save the settings Follow these steps to utilize this functionHow to use the Timer ON/SHOW key? To cancel the timer, perform the following stepsUsing the OSD menu Remote paging operationsHiding the image Utilizing FAQ functionFreezing the image Locking control keys To activate the High Altitude ModeOperating in a high altitude environment Panel Key Lock menu and pressAdjusting the sound level Adjusting the soundTurning off the Power on/off ring tone Creating your own startup screenShutting down the projector Personalizing the On-Screen Display OSD menusIf the projector is not properly Menu structure On-Screen Display OSD MenusMain menu Sub-menu Options Reset All Settings Setup BasicAdvanced Menu Position Center/Top-Left/Top-Right/BottomDisplay menu Picture menu Description of each menuPresentation Timer Save SettingsAuto Power Off Blank TimerSystem Setup Advanced menu Information menu Care of the projector MaintenanceLamp information Setting Auto Power Off Setting Lamp Mode as EconomicExtending lamp life Timing of replacing the lamp Loosen the screw that secures the lamp Replacing the lamp To slowly pull the lamp out of the projector Remove the lamp cover from the projectorSettings menu Resetting the lamp timerPress Enter and the Lamp Settings Indicators Troubleshooting Projector specifications SpecificationsDimensions Supported timing for Analog RGB input Timing chartSupported timing for Component-YPbPrinput Supported timing for Video and S-Video inputsSXGA75 Supported timing for DVI-D Hdcp inputRegulation statements Other information

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