BenQ MP770 user manual Troubleshooting, Projector does not turn on, No picture, Blurred image

Page 62

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

projector, and plug the power cord into the

cable.

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 source device.

 

 

 

The input signal has not been

Select the correct input signal with the Source

correctly selected.

key on the projector or remote control.

 

 

The lens cap is still attached to the

Remove the lens cap.

lens.

 

 

 

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 unit if necessary.

 

 

The lens cap is still attached to the

Remove the lens cap.

lens.

 

 

 

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 6 meters (19.5 feet) of the

projector.

projector.

 

 

62 Troubleshooting

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Contents Welcome Copyright DisclaimerTable of contents Troubleshooting Specifications Future reference Projector lamp is on Important safety instructionsRefer servicing to qualified service personnel Do not look straight at the projectorSafety Instructions 10000 Feet Important safety instructions Bedding or any other soft surfaceSafety Instructions Introduction Projector featuresIntroduction Shipping contents Rear side Projector exterior viewFront/upper side Controls and functions ProjectorLamp indicator light AutoRemote control Mode LED indicator lightPIP MuteRemote control effective range Remote control batteriesPositioning your projector Choosing a locationSafety instructions for ceiling mounting of the projector Obtaining a preferred projected image size Page 1219 Maximum zoom Minimum zoomScreen Center of lens Projection distance 1500Connection Wireless connection optionalConnecting a computer or monitor Cable connectionVGA With a VGA cable With a VGA to DVI-A cable Socket, not the DVI-I socketBetter video quality Connecting Video source devicesBest video quality Least video qualityConnecting a DVI source device Connecting AudioConnecting a Component Video source device Menus. See Audio Settings on page 50 for details Connecting an S-Video source device To connect the projector to an S-Video source deviceConnecting a composite Video source device Operation OperationStart up If you forget the password Utilizing the password functionSetting a password Up , Right, Down, Left respectivelyDisabling the password function Entering the password recall procedureChanging the password Adjusting the projection angle Switching input signalAdjusting the projected image Searching for details on the projected image Auto-adjusting the imageFine-tuning the image size and clarity Correcting keystoneControl. Go to the Display Keystone menu You are satisfied with the shapeSelecting the aspect ratio Go to the Picture Application Mode menu Selecting an application modeSetting the User 1/User 2 mode Optimizing the imageAdjusting contrast Fine-tuning the image quality in user modesAdjusting brightness Selecting a color temperatureHiding the image Other adjustmentsOperating in a high altitude environment PIP Picture In Picture operation Creating your own startup screen Remote paging operationsFreezing the image Press Personalizing the projector menu displayShutting down the projector Message will disappearPC source Brightest Menu operationMenu system Video source Cinema/MovieAdvanced Information ResolutionBasic Using the menus Use Left/ Right to select the Display menuDisplay menu Picture menu Detection Source menuAuto Source NetworkSystem setup Basic menu System setup Advanced menu Information menu Mode ResolutionLamp Timer SourceMaintenance Care of the projectorTo clean the filter Clean the Air FilterReplacing the filter sponge Check the Air FilterLamp information Calculation of lamp hourReplacing the lamp Out of Lamp Usage TimePage Restart the projector Temperature information Tighten the screw that secures the lamp Powering up IndicatorsStand-by mode IllustrationLight Status & Description Power Temp Lamp Thermal events Projector does not turn on TroubleshootingRemote control does not work No pictureRemote mouse function does not work Specifications Projector specificationsSupported timing for Component-YPbPrinput Timing chartSupported timing for PC including DVI-I input Supported timing for Video and S-Video inputsDimensions Mm W x 94 mm H x 238 mm D 291 Unit mm SpecificationsWarranty Limited warrantyEEC statement Regulation statementsFCC statement MIC statement
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