BenQ MX761 user manual Troubleshooting

Page 69

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

the projector, and plug the power cord into the

cord.

power outlet. If the power outlet has a switch,

 

make sure that it is switched on.

Attempting to turn the projector on

Wait until the cooling down process has

again 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

connected correctly.

signal cable is connected correctly.

The projector is not correctly

Check the connection.

connected to the input signal device.

 

The input signal has not been

Select the correct input signal with the

SOURCE key on the projector or remote

correctly selected.

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

focused.

ring.

The projector and the screen are not

Adjust the projection angle and direction as

aligned properly.

well 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 batteries are out of power.

Replace the batteries with new ones.

There is an obstacle between the

Remove the obstacle.

remote control and the projector.

 

You are too far away from the

Stand within 8 meters (26 feet) of the

projector.

projector.

The password is incorrect

 

Cause

Remedy

You do not remember the password.

Please see "Entering the password recall

procedure" on page 26 for details.

 

Troubleshooting 69

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Contents MX760/MX761 Digital Projector WelcomeTable of contents Safety Instructions Important safety instructionsRefer servicing to qualified service personnel Important safety instructionsSafety Instructions Locations with an ambient temperature Locations near fire alarmsLocations where the altitudes are higher Confined. Allow at least 50 cm clearanceIt from the power supplys power outlet InstalledServiced Do not step on the projector or placeProjector features IntroductionIntroduction Shipping contents Rear/lower side Projector exterior viewFocus ring Power indicator lightZoom ring LeftTest Remote controlAuto Keystone/Arrow buttons / Up DownMute Operating the Laser pointerMIC/VOL + Numeric buttonsRemote control effective range Replacing the remote control batteriesApprox.+15º Choosing a location Positioning your projectorFront Table Front CeilingObtaining a preferred projected image size Projection dimensionsShifting the projection lens When the projector position is fixedVideo cable Hdmi cable Connection ConnectionConnecting audio Connecting video source devicesTerminal name Terminal appearance BestPlaying sound through the projector About the microphone inputDevice Page Operation Starting up the projectorOperation Adjusting the projection angle Adjusting the projected imageAuto-adjusting the image Fine-tuning the image size and clarityCorrecting keystone Using the menus Following example describes how to set the OSD languageUse / to highlight the System Setup Basic menu Utilizing the password function Using a security cable lockSetting a password Highlight Change Security Settings and press MODE/ENTEREntering the password recall procedure If you forget the passwordChanging the password Write down the number and turn off your projectorDisabling the password function Changing Color Space Switching input signalSelecting the aspect ratio Magnifying and searching for detailsAdjustments Projectors native resolution in its Displayed in the centerAbout the aspect ratio Screen with a 169 aspect ratioSelecting a picture mode Using Wall ColorSetting the User 1/User 2 mode Go to the Picture Picture Mode menuFine-tuning the image quality in user modes Every adjustment made will reflect to Press To highlight Saturation and adjust its3D Color Management Range at 0, only pure red in the projectedTo cancel the timer, perform the following steps Setting the presentation timerCount Up Increases from 0 to the preset time Count Down Selection DescriptionRemote paging operations Utilizing FAQ functionFreezing the image Hiding the imageUsing the remote control To activate the High Altitude ModeLocking control keys Operating in a high altitude environmentAdjusting the sound level Adjusting the soundAdjusting the microphone volume Turning off the Power On/Off Ring ToneCable connection Controlling the projector through a LAN environmentIf you are in a Dhcp environment If you are in a non-DHCP environmentHighlight Wireless LAN and press MODE/ENTER Wireless connectionControlling the projector remotely through a web browser Page Page Iii Operation Page Operation Page Downloading and installing Q Presenter Using Q PresenterDisplaying images through Q Presenter Operation Operation Presenting from a USB Reader Direct power off Once the cooling process finishes, a Power Off RingShutting down the projector Menu system Menu operationMain menu Sub-menu Options BasicAdvanced Advanced Network Description of each menu Temperature Picture ModeManagement Save Settings Display menu Picture menu Function Description TeachingTimer System Setup Basic menu Function Description Quick AutoSettings SearchPanel Key Settings Security DescriptionBackground LockReset All System Setup Advanced menu Function DescriptionBaud Rate Test PatternCurrent Features ServiceSystem StatusCare of the projector MaintenanceSetting Auto Power Off Setting Lamp Mode as EconomicLamp information Getting to know the lamp hourStatus Message Timing of replacing the lampReplacing the lamp Tighten the screw that secures the lamp Connect the power and restart the projector Resetting the lamp timerTighten the screw that secures the lamp cover Light Status & Description Power events IndicatorsLamp events Thermal eventsTroubleshooting Projector specifications SpecificationsMm W x 128 mm H x 252 mm D DimensionsCeiling Mount screw M4 x 8 Max L = 8 mm Unit mmSupported timing for PC input Timing chartSupported timing for Hdmi Hdcp input Supported timing for Video and S-Video inputs Supported timing for Component-YPbPrinputTiming HorizontalLimited warranty Warranty and Copyright informationCopyright DisclaimerFCC statement for United States users Regulation statementsEEC statement for European users Weee directive
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