BenQ MP770 user manual Selecting the aspect ratio

Page 37

Selecting the aspect ratio

The 'aspect ratio' is the ratio of the image width to the image height. Most analog TV and computers are in 4:3 ratio, which is the default for this projector, and digital TV and DVDs are usually in 16:9 ratio.

With the advent of digital signal processing, digital display devices like this projector can dynamically stretch and scale the image output to a different aspect than that of the image input source.

You can change the projected image ratio (no matter what aspect the source is) by pressing ASPECT on the remote control or in the DISPLAY > Aspect Ratio menu. Select an aspect ratio to suit the format of the video signal and your display requirements. There are four aspect ratios available:

In the pictures below, the black portions are inactive areas and the white portions are active areas.

1.Auto: Scales an image proportionally to fit the projector's native

resolution in its horizontal width. This is suitable for the incoming image which is either in 4:3 nor 16:9 and you want to make most use of the screen without altering the image's aspect ratio.

2.Actual Size: The image is projected as its original resolution, with no

pixel conversion. For input signals with lower resolutions, the projected image will display smaller than if resized to full screen. You could adjust the zoom setting or move the projector towards the screen to increase the image size if necessary. You may also need to refocus the projector after making these adjustments.

3.4:3: Scales an image so that it is displayed in the center of the screen with a 4:3 aspect ratio. This is most suitable for 4:3 images like

computer monitors, standard definition TV and 4:3 aspect DVD movies, as it displays them without aspect alteration.

4.16:9: Scales an image so that it is displayed in the center of the screen

with a 16:9 aspect ratio. This is most suitable for images which are already in a 16:9 aspect, like high definition TV, as it displays them without aspect alteration.

16:9 aspect ratio is only sourced through the Component Video input when

being fed an appropriate 16:9 aspect signal. See "Connecting a Component Video source device" on page 27 and "Obtaining a preferred projected image size" on page 19 for details.

Operation 37

Image 37
Contents Welcome Disclaimer CopyrightTable of contents Troubleshooting Specifications Refer servicing to qualified service personnel Important safety instructionsFuture reference Projector lamp is on Do not look straight at the projectorSafety Instructions Bedding or any other soft surface 10000 Feet Important safety instructionsSafety Instructions Introduction Projector featuresIntroduction Shipping contents Front/upper side Projector exterior viewRear side Projector Controls and functionsAuto Lamp indicator lightRemote control PIP LED indicator lightMode MuteRemote control batteries Remote control effective rangeChoosing a location Positioning your projectorSafety instructions for ceiling mounting of the projector Obtaining a preferred projected image size Page Screen Center of lens Projection distance Maximum zoom Minimum zoom1219 1500Connecting a computer or monitor Wireless connection optionalConnection Cable connectionVGA Socket, not the DVI-I socket With a VGA cable With a VGA to DVI-A cableBest video quality Connecting Video source devicesBetter video quality Least video qualityConnecting Audio Connecting a DVI source deviceConnecting a Component Video source device Menus. See Audio Settings on page 50 for details To connect the projector to an S-Video source device Connecting an S-Video source deviceConnecting a composite Video source device Start up OperationOperation Setting a password Utilizing the password functionIf you forget the password Up , Right, Down, Left respectivelyChanging the password Entering the password recall procedureDisabling the password function Adjusting the projected image Switching input signalAdjusting the projection angle Fine-tuning the image size and clarity Auto-adjusting the imageSearching for details on the projected image Correcting keystoneYou are satisfied with the shape Control. Go to the Display Keystone menuSelecting the aspect ratio Setting the User 1/User 2 mode Selecting an application modeGo to the Picture Application Mode menu Optimizing the imageAdjusting brightness Fine-tuning the image quality in user modesAdjusting contrast Selecting a color temperatureOperating in a high altitude environment Other adjustmentsHiding the image PIP Picture In Picture operation Freezing the image Remote paging operationsCreating your own startup screen Shutting down the projector Personalizing the projector menu displayPress Message will disappearMenu system Menu operationPC source Brightest Video source Cinema/MovieBasic Information ResolutionAdvanced Use Left/ Right to select the Display menu Using the menusDisplay menu Picture menu Auto Source Source menuDetection NetworkSystem setup Basic menu System setup Advanced menu Lamp Timer Mode ResolutionInformation menu SourceCare of the projector MaintenanceClean the Air Filter To clean the filterCheck the Air Filter Replacing the filter spongeCalculation of lamp hour Lamp informationOut of Lamp Usage Time Replacing the lampPage Tighten the screw that secures the lamp Temperature informationRestart the projector Stand-by mode IndicatorsPowering up IllustrationLight Status & Description Power Temp Lamp Thermal events Remote control does not work TroubleshootingProjector does not turn on No pictureRemote mouse function does not work Projector specifications SpecificationsSupported timing for PC including DVI-I input Timing chartSupported timing for Component-YPbPrinput Supported timing for Video and S-Video inputsMm W x 94 mm H x 238 mm D 291 Unit mm Specifications DimensionsLimited warranty WarrantyFCC statement Regulation statementsEEC statement MIC statement
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