BenQ cp270 user manual

Page 15

How to determine the position of the projector for a given screen size

1.Select your screen size.

2.Refer to the table and find the closest match to your screen size in the left columns labelled "4:3 screen diagonal". Using this value, look across this row to the right to find the corresponding average distance from screen value in the column labelled "Average". This is the projection distance.

3.On that same row, look across to the right column and make note of the "Vertical offset in mm" value. This will determine the final vertical offset placement of the projector in relation to the edge of the screen.

4.The recommended position for the projector is aligned perpendicular to the horizontal center of the screen, at the distance from the screen determined in step 2

above, and offset by the value determined in step 3 above.

For example, if you are using a 120-inch screen, the average projection distance is 4755 mm and with a vertical offset of 183 mm.

If you place the projector in a different position (to that recommended), you will have to tilt it down or up to center the image on the screen. In these situations, some image distortion will occur. Use the Keystone function to correct the distortion. See "Correcting keystone" on page 28 for details.

How to determine the recommended screen size for a given distance

This method can be used for situations where you have purchased this projector and would like to know what screen size will fit in your room.

The maximum screen size is limited by the physical space available in your room.

1.Measure the distance between the projector and where you want to position the screen. This is the projection distance.

2.Refer to the table and find the closest match to your measurement in the average distance from screen column labelled "Average". If the min and max values are available on the table, check that your measured distance is between the min and max distances listed on either side of the average distance value.

3.Using this value, look across that row to the left to find the corresponding screen diagonal listed in that row. That is the projected image size of the projector at that projection distance.

4.On that same row, look across to the right column and make note of the "Vertical offset in mm" value. This will determine the final placement of the screen in relation to the horizontal plane of the projector.

For example, if your measured projection distance was 4.5 m (4500 mm), the closest match in the "Average" column is 4680 mm. Looking across this row shows that a 118-inch (3.0 m) screen is required.

Positioning your projector

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Contents CP270 Digital Projector WelcomeTable of contents Do not look straight at the projector Important safety instructionsRefer servicing to qualified service personnel Future reference Projector lamp is onSafety Instructions Do not block the ventilation holes This Apparatus Must be Earthed Projector features IntroductionIntroduction Shipping contents Front/upper side Projector exterior viewProjector Controls and functionsRemote control Remote control effective range Replacing the remote control battery Pull out the battery holder Front Table Set Rear Table in the System Setup Basic ProjectorPositioning your projector Choosing a locationObtaining a preferred projected image size Page Projection dimensions Connection Connecting a computerConnection To connect the projector to a notebook or desktop computerLeast video quality Connecting Video source devicesBest video quality Better video qualityConnecting a Component Video source device To connect the projector to a Component Video source deviceAV device Component Video to VGA D-Sub adaptor cable Connecting an S-Video source device To connect the projector to an S-Video source deviceAV device Video cable To connect the projector to a composite Video source device Connecting a composite Video source deviceOperation Starting up the projectorOperation Use / to highlight the System Setup Basic menu Using the menusSecurity Settings Utilizing the password functionSetting a password If you forget the passwordEnter a new password Entering the password recall procedureChanging the password Disabling the password functionSwitching input signal Adjusting the projected imageAdjusting the projection angle Fine-tuning the image size and clarity Auto-adjusting the imageMagnifying and searching for details Correcting keystoneAt the bottom of the image Selecting the aspect ratio About the aspect ratioUse of the screen without altering the images aspect Ratio Video input signals S-Video, Video, D-Sub / Comp. YPbPr Selecting a picture modePicture modes for different types of signals PC input signals D-Sub / Comp. analog RGBAdjusting Brightness Using Wall ColorFine-tuning the image quality in user modes Setting the User 1/User 2 modeAdjusting Brilliant Color Adjusting ColorAdjusting Tint Adjusting SharpnessPress Mode/Enter and the 3D Color Management page displays Top-Left Bottom-Left Top- Right Bottom-Right Setting the presentation timerHiding the image To cancel the timer, perform the following stepsHow to use the Timer On key? Or go to the System Setup Basic PanelBased on the information you want to know Press Mode/Enter Utilizing FAQ functionFreezing the image Information menuOperating in a high altitude environment To activate the High Altitude ModeSystem Setup Advanced menu is To highlight High Altitude ModeShutting down the projector Menu operation Menu systemMain menu Sub-menu Options Advanced Lamp mode Normal/EconomicLamp Settings BasicDescription of each menu Timer Picture menu Source 4. System Setup Basic menumenuColor Temperature Save SettingsPanel Key Blank TimerSleep Timer SettingsInformation menu Reset AllFAQ-Image Installation Features ServiceCare of the projector MaintenanceGetting to know the lamp hour Setting Lamp mode as EconomicSetting Auto Power Off Lamp informationTiming of replacing the lamp Replacing the lamp Loosen the screw that secures the lamp MaintenancePage Tighten the screws that secure the lamp Cover Resetting the lamp timerSetup Advanced Lamp Settings menu Displays. Press to highlight Reset lampIndicators Troubleshooting Projector specifications SpecificationsSupported timing for PC input DimensionsTiming chart Resolution ModeHorizontal Signal FormatSupported timing for Component-YPbPrinput Supported timing for Video and S-Video inputsDisclaimer Warranty and Copyright informationLimited warranty CopyrightWeee directive Regulation statementsFCC statement EEC statement