BenQ MX822ST, MX766, MW767 user manual Troubleshooting

Page 95

Troubleshooting

The projector does not turn on.

Cause

Remedy

 

 

 

Plug the power cord into the AC inlet on the

There is no power from the power cable.

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

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.

 

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.

 

 

 

The projector and the screen are not

Adjust the projection angle and direction as well

aligned properly.

as the height of the unit 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 one.

 

 

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

procedure" on page 35 for details.

 

 

 

Troubleshooting 95

Image 95
Contents MX766/MW767/MX822ST Digital Projector Table of contents Projector lens during operation Important safety instructionsSafety Instructions Do not look straight atSafety Instructions Do not block the ventilation holes Safety Instructions Introduction Projector featuresShipping contents Optional accessories Front/upper side Projector exterior viewMX822ST Rear/lower sideKeystone/Arrow keys / Up Down Volume /Arrow keys / Left, / RightPower/POWER indicator light Controls and functionsMounting the projector Test Remote controlVolume /Arrow keys / Left Right Zoom +MIC/VOL + Operating the laser pointerHdmi AutoReplacing the remote control battery Front Table Set Rear Ceiling in the System Setup BasicPositioning your projector Choosing a locationObtaining a preferred projected image size Max length Inch Max. zoom Min. zoom Projection dimensionsMX766 MW767MX822ST Connection Operation System Minimum Hardware Requirements Connecting a computer Connecting a computer or monitorTo connect the projector to a monitor Connecting a monitorTo connect the projector to an Hdmi source device Connecting Video source devicesConnecting an Hdmi source device To connect the projector to a Component Video source device Connecting a Component Video source deviceTo connect the projector to an S-Video/Video source device Connecting an S-Video/composite source deviceConnecting with document camera Starting up the projector OperationAuto-adjusting the image Adjusting the projected imageAdjusting the projection angle Fine-tuning the image size and clarity Using build-in test patternMODE/ENTER . The Keystone correction Correcting keystoneLanguage and press Enter to Using the menusIf you forget the password Using a security cable lockUtilizing the password function Setting a passwordChanging the password Entering the password recall procedureChanging Color Space Switching input signalDisabling the password function Magnifying and searching for details About the aspect ratio Selecting the aspect ratioOptimizing the image Selecting a picture modeFine-tuning the image quality in user modes Using Wall ColorSelecting a Color Temperature Adjusting TintAdjusting Sharpness Adjusting Brilliant ColorPress MODE/ENTER and the 3D Color Management page displays To cancel the timer, perform the following steps Setting the presentation timerFreezing the image Remote paging operationsHiding the image Muting the sound Adjusting the soundAdjusting the sound level Operating in a high altitude environmentPersonalizing the projector menu display Turning off the Power on/off ring toneAdjusting the microphone’s sound level Until the System Setup Advanced menu is highlighted Select the lamp saver modeUse Teaching Template If you are in a Dhcp environment Configuring the Wired LAN SettingsConfiguring the Wireless LAN Settings Controlling the projector through a LAN environmentControlling the projector remotely through a web browser Through Q Presenter on page 59 for details Page Page Iii Page Page Page Page Displaying image through Q Presenter Iii Iii Vii Using the Projection Login Code Using the Web Control LockPreparation Using the broadcassting functionPresenting From a USB Reader Image File TypesPress Controlling USB ReaderPress Settings Remote Desktop Control through Q Presenter Enter Shutting down the projector PointDraw PenMenu system Menu operationSystem Setup Basic CC1/CC2/CC3/CC4 Dhcp Display menu Description of each menu3D Sync Invert 3D ModePicture menu Picture mode on page 39 for detailsPicture menu Source menu System Setup Basic menu Blank Timer Direct Power OnSignal Power On Auto Power OffSee PointDraw Pen on page 70 for details System Setup Advanced menu Caption Version Closed Caption EnableMicrophone Wired LANWireless LAN NetworkSource System Setup Advanced menu Information menuPicture Mode ResolutionCare of the projector MaintenanceGetting to know the lamp hour Setting Lamp Mode eco function as Economic or SmartEco modeSetting Auto Power Off Lamp informationPage Status Message Timing of replacing the lampReplacing the lamp Page Tighten the screws that secure Lamp Resetting the lamp timerLamp events IndicatorsLight Status & Description Thermal IC #2 I2C Connection error Thermal Sensor 2 open errorThermal Sensor 2 short error Troubleshooting Specifications Dimensions Ceiling mount screw M4 Max L = 25 mm Min L = 20 mm Unit mm Ceiling mount installationMinimum installation requirements Wall mount installationMinimum Ceiling Height mm = f + H + b + 60 + 262.2+ c Supported timing for PC input Timing chartSupported timing for Hdmi input Supported timing for Video and S-Video inputs Supported timing for Component-YPbPrinputPC timing Supported 3D signal for Hdmi Hdcp inputVideo timing Supported 3D signal for D-SUB input Supported 3D signal for Video and S-Video input Copyright Warranty and Copyright informationLimited warranty Patents