BenQ cp270 user manual Selecting the aspect ratio, About the aspect ratio

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6.Use the directional arrows ( , , , ) on the projector or remote control to navigate the picture.

7.To reduce size of the picture, press Mode/Enter to switch back to the zoom in/out functionality, and press AUTO to restore the picture to its original size. You can also press repeatedly until it is restored to the original size.

The picture can only be navigated after the picture is magnified. You can further magnify the picture while searching for details.

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 signal.

To change the projected image ratio (no matter what aspect the source is):

1.Press Menu/Exit and then press / until the DISPLAY menu is highlighted.

2.Press to highlight Aspect Ratio.

3.Press / to select an aspect ratio to suit the format of the video signal and your display requirements.

About the aspect ratio

In the pictures below, the black portions are inactive areas and the white portions are active areas. OSD menus can be displayed on those unused black 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

 

 

 

 

neither in 4:3 nor 16:9 and you want to make most

16:10 picture

 

 

 

use of the screen without altering the image's aspect

 

 

ratio.

 

 

 

 

 

 

 

 

 

15:9 picture

 

2.Real: The image is projected as its original resolution, and resized to fit within the display area. 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.

4:3 picture

16:9 picture

4:3 picture

Operation 29

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Contents CP270 Digital Projector WelcomeTable of contents Refer servicing to qualified service personnel Important safety instructionsFuture reference Projector lamp is on Do not look straight at the projectorSafety Instructions Do not block the ventilation holes This Apparatus Must be Earthed Introduction Projector featuresIntroduction Shipping contents Front/upper side Projector exterior viewProjector Controls and functionsRemote control Pull out the battery holder Remote control effective rangeReplacing the remote control battery Positioning your projector Set Rear Table in the System Setup Basic ProjectorChoosing a location Front TableObtaining a preferred projected image size Page Projection dimensions Connection Connecting a computerTo connect the projector to a notebook or desktop computer ConnectionBest video quality Connecting Video source devicesBetter video quality Least video qualityAV device Component Video to VGA D-Sub adaptor cable Connecting a Component Video source deviceTo connect the projector to a Component Video source device AV device Video cable Connecting an S-Video source deviceTo connect the projector to an S-Video source device To connect the projector to a composite Video source device Connecting a composite Video source deviceOperation OperationStarting up the projector Use / to highlight the System Setup Basic menu Using the menusSetting a password Utilizing the password functionIf you forget the password Security SettingsChanging the password Entering the password recall procedureDisabling the password function Enter a new passwordAdjusting the projection angle Switching input signalAdjusting the projected image Fine-tuning the image size and clarity Auto-adjusting the imageAt the bottom of the image Magnifying and searching for detailsCorrecting keystone Use of the screen without altering the images aspect Ratio Selecting the aspect ratioAbout the aspect ratio Picture modes for different types of signals Selecting a picture modePC input signals D-Sub / Comp. analog RGB Video input signals S-Video, Video, D-Sub / Comp. YPbPrFine-tuning the image quality in user modes Using Wall ColorSetting the User 1/User 2 mode Adjusting BrightnessAdjusting Tint Adjusting ColorAdjusting Sharpness Adjusting Brilliant ColorPress Mode/Enter and the 3D Color Management page displays Top-Left Bottom-Left Top- Right Bottom-Right Setting the presentation timerHow to use the Timer On key? To cancel the timer, perform the following stepsOr go to the System Setup Basic Panel Hiding the imageFreezing the image Utilizing FAQ functionInformation menu Based on the information you want to know Press Mode/EnterSystem Setup Advanced menu is To activate the High Altitude ModeTo highlight High Altitude Mode Operating in a high altitude environmentShutting down the projector Main menu Sub-menu Options Menu operationMenu system Lamp Settings Lamp mode Normal/EconomicBasic AdvancedDescription of each menu Color Temperature Picture menu Source 4. System Setup Basic menumenuSave Settings TimerSleep Timer Blank TimerSettings Panel KeyFAQ-Image Installation Reset AllFeatures Service Information menuCare of the projector MaintenanceSetting Auto Power Off Setting Lamp mode as EconomicLamp information Getting to know the lamp hourTiming of replacing the lamp Replacing the lamp Loosen the screw that secures the lamp MaintenancePage Setup Advanced Lamp Settings menu Resetting the lamp timerDisplays. Press to highlight Reset lamp Tighten the screws that secure the lamp CoverIndicators Troubleshooting Projector specifications SpecificationsTiming chart DimensionsResolution Mode Supported timing for PC inputSupported timing for Component-YPbPrinput Signal FormatSupported timing for Video and S-Video inputs HorizontalLimited warranty Warranty and Copyright informationCopyright DisclaimerFCC statement Regulation statementsEEC statement Weee directive