BenQ MW82IST user manual Troubleshooting

Page 53

Troubleshooting

The projector does not turn on.

	Cause	Remedy

		Plug the power cord into the AC power jack on
	There is no power from the power cord.	the projector, and plug the power cord into the
	There is no power from the power cord.	power outlet. If the power outlet has a switch,
		power outlet. If the power outlet has a switch,
		make sure that it is switched on.

	Attempting to turn the projector on again	Wait until the cooling down process has
	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 signal
	connected correctly.	cable is connected correctly.

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

	The input signal has not been correctly	Select the correct input signal with the SOURCE
	selected.	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		Adjust the focus of the lens using the focus ring.
focused.		Adjust the focus of the lens using the focus ring.
focused.

The projector and the screen are not		Adjust the projection angle and direction as well
aligned properly.		as the height of the projector if necessary.

The lens cover is still closed.		Open the lens cover.
Remote control does not work

Cause	Remedy
The battery is out of power.	Replace the battery with new ones.
There is an obstacle between the remote	Remove the obstacle.
control 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
	You do not remember the password.	procedure" on page 23 for details.
		procedure" on page 23 for details.

Troubleshooting 53

Image 53

Contents MW821ST Table of contents Safety Instructions Important safety instructionsSafety Instructions 3000 m Feet Ceiling mounting the projector Introduction Projector featuresShipping contents Front/upper side Rear/lower side Projector exterior viewControls and functions Remote control Replacing the remote control batteries Remote control effective rangeChoosing a location Positioning your projectorFront Table Front CeilingObtaining a preferred projected image size Projection dimensionsConnection ConnectionPlaying sound through the projector Connecting video source devicesConnecting audio Device About the microphone inputStarting up the projector OperationAdjusting the projection angle Adjusting the projected imageAuto-adjusting the image Fine-tuning the image clarityCorrecting keystone Below is the overview of the OSD menu Using the menusUtilizing the password function Using a security cable lockSetting a password If you forget the passwordDisabling the password function Entering the password recall procedureChanging the password Changing Color Space Switching input signalSelecting the aspect ratio Magnifying and searching for detailsAbout the aspect ratio Selecting a picture mode Using Wall ColorSetting the User 1/User 2 mode Go to the Picture Picture Mode menuSelecting a Color Temperature Fine-tuning the image quality in user modesAdjusting Brilliant Color 3D Color Management Setting a preferred color temperatureSelection Description Setting the presentation timerResetting current or all picture modes Remote paging operations To cancel the timer, perform the following stepsFreezing the image Top-Left Bottom-Left Top-Right Bottom-RightHiding the image To activate the High Altitude ModeLocking control keys Operating in a high altitude environmentTurning off the Power On/Off Ring Tone Adjusting the soundUsing the test pattern To select Blackboard or Whiteboard Using the teaching templatesShutting down the projector Direct power offMain menu Sub-menu Options Menu operationMenu system Basic Sleep Timer Disable/30 min/1 hr/2 hr/3 hr/4 Hr/8 hr/12 hrBottom-Right/Bottom-Left Min/25 min/30 minEquivalent Lamp Hour Main menu Sub-menu Options System Setup AdvancedIP Address Color SystemDescription of each menu Temperature Picture ModeColor Temperature Fine Tuning 3D ColorInstallation TimerSettings SearchOperation System Setup Basic menu Function DescriptionRemote ReceiverAltitude System Setup Advanced menu Function Description HighAudio LampReset All System Setup Advanced menu Function DescriptionStandby NetworkStatus CurrentSystem Care of the projector MaintenanceExtending lamp life Lamp informationGetting to know the lamp hour Status Message Timing of replacing the lampReplacing the lamp Connect the power and restart the projector Resetting the lamp timer Light Status & Description Power events IndicatorsLamp events Thermal eventsTroubleshooting Projector specifications SpecificationsWall mount installation DimensionsWall plate Minimum Ceiling Height mm = f + H + b + 60 + 274+ cSupported timing for PC input Timing chartKHz Supported timing for Hdmi Hdcp inputTiming Supported timing for Component-YP bP r inputSupported timing for Video and S-Video inputs Limited warranty Warranty and Copyright informationCopyright Disclaimer