BenQ CP120 manual Positioning your projector

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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 on page 15 and find the closest match to your measurement in the average distance from screen column labelled 'Average'. 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 diameter 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 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 4.5m (4500mm), the closest match in the Average column is 4682mm. Looking across this row shows that a 3000mm (3m) screen is required. If you can only obtain imperial sized screens, the listed screen sizes on either side of the 3m screen are the 9' and 10' screens.

Checking the min and max projection distance values for the these (9' & 10') sizes, indicates that the 4.5m measured projection distance will fit these screens too. The projector can be adjusted (using the zoom control) to display on these different screen sizes at that projection distance. Be aware that these different screens have different vertical offset values.

14 Positioning your projector

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Contents Welcome Disclaimer CopyrightSoftware license agreement Copyright Memo Table of Contents Fine-tuning the image size and clarity Iv Table of ContentsDimensions Timing chart Table of ContentsMemo Vi Table of Contents But could fail if power cuts or surges Important safety instructionsImportant safety instructions Safety instructions Bedding or any other soft surface Do not block the ventilation holesFollowing environments Do not place this unit on a blanket Other itemSafety instructions Introduction Projector featuresIntroduction Shipping contents Rear side Projector exterior viewFront / Upper side Lower sideExternal control panel Controls and functionsTurns the projector on or off Introduction Adjusts the focus of the projected image Press this button to display the Wireless Connection menu Remote control descriptionDown on the remote control Turns the projector on or offRemote control effective range Installing or replacing the remote control batteryObtaining a preferred projected image size Positioning your projectorChoosing a location EquipmentSelect your screen size Positioning your projector Maximum Minimum Zoom Screen size chartScreen Center of lens Projection distance Connection Connecting a computerConnection Connecting Video source devices Best video qualityConnecting a Component Video source device Component Video to VGA D-Sub adaptor cable DeviceConnecting an S-Video source device Video cable DeviceConnecting a composite Video source device Using the projector Using the projectorSwitch all of the connected equipment on Start upUtilizing the password function To set a passwordTo enter the password recall procedure If you forget the passwordTo change the password Fine-tuning the image size and clarity Adjusting the heightAuto-adjusting the image That you need using the zoom ring Focus ringManual keystone correction Correcting keystoneRight buttons on Hiding the image Selecting an application modeSwitching input signal Automatic keystone correctionFreezing the image Disconnect the power cord from the wall socketRemote paging operations ShutdownAbout wireless connection modes and channels Using the wireless functionsHardware and software requirements Preparing your computer for wireless connection Checking the TCP/IP settings of your computerMaking wireless presentation Installing Wireless WizardClick to select a wireless network card from the list Current wireless connection channel Page Controlling presentation Freezing imageDisconnecting Method 2 Projector controlMenu operation Menu systemUsing the menus Picture menu Color Temp Selected Application ModeKeystone Depends onPro-Picture menu Setting menu Advance menu Economic Turned off. Selecting Off disables this functionAuto Off Off Periods of time 10hours without shutdownInformation Menu ResolutionMode Equivalent SourceMaintenance Care of the projectorCalculation of lamp hour Message StatusReplacing the lamp Temperature information Resetting the lamp counterStand-by mode IndicatorsProjector needs to cool after the power is Turned off Powering upMaintenance No picture TroubleshootingProjector does not turn on Image is unstableConfigured Remote control does not workUnable to use wireless connection NearbySpecifications Projector specificationsHorizontal Vertical Pixel Resolution Frequency Mode KHz MHz DimensionsTiming chart Supported timing for PC inputSupported timing for Component-YPbPrInput Signal Format Horizontal Frequency Vertical Frequency KHzSupported timing for Video and S-Video inputs Limited warranty WarrantyWarranty EEC statement Regulation statementsFCC statement MIC statementMemo Regulation statements