Canon LV-7255 manual Correcting Keystone Distortion, Auto Keystone Correction

Page 34

3. Projecting an Image (Basic Operation)

￿Correcting Keystone Distortion

Auto Keystone Correction

The Auto keystone correction feature will correct the vertical distortion of a projected image on the screen. No special operation required. Just put the projector on a flat surface.

NOTE: Although the Auto Keystone angle that can be corrected is about 30 degrees upward and downward, we recommend that you use the Auto Keystone within an angle of +/- 10 degrees.

NOTE: Auto and Manual keystone correction angle could be less than 30 degrees depending on some kinds of signal and aspect ratios.

NOTE: The Auto keystone correction feature can cause an image to be slightly blurred because the correction is made electroni- cally.

Manual Keystone Correction

You can also correct the vertical keystone distor- tion manually.

To do so:

1.Press the MENU button. The menu will be displayed.

2.Turn off the Auto keystone function.

Use the SELECT button to select “Display settings” and then press OK or the SELECT button. The “Auto key- stone” will be displayed. Press the SELECT to select “Off”.

3.Select the Keystone function.

Use the SELECT button to select “Keystone adjustment”.

4.Correct the vertical distortion.

Use the SELECT or button to correct the vertical keystone distortion.

NOTE: The Keystone correction feature can cause an image to be slightly blurred because the correction is made electronically.

25

Image 34
Contents LV-7255 Safety Cautions PrecautionsCanadian Radio Interference Regulations Important InformationFederal Communication Commission Notice Réglementation canadienne sur les intérferences radioLamp Handling Precautions Fire and Shock Precautions Important SafeguardsInstallation Do Not Use in the Following EnvironmentsUse Caution When Carrying or Transporting the Projector CARRYING/TRANSPORTING the ProjectorImportant Information Remote Control Precautions Table of Contents Viii Introduction Whats in the Box?Introduction Features youll enjoyIntroduction to the Projector Congratulations on Your Purchase of The ProjectorIntroduction Front/Top Part Names of the ProjectorRear Introduction Bottom To turn the logo upside down, follow the steps belowIntroduction Top Features Introduction Terminal Panel Features Part Names of the Remote Control Freeze Button / Button17. D. Zoom + Button Click ButtonIntroduction Battery Installation Operating Range for Wireless Remote ControlInstallation and Connections Selecting a Location Setting Up the Screen and the ProjectorInstallation and Connections Throw Distance and Screen SizeReflecting the Image Making Connections Analog IN-1 Analog IN-2Installation and Connections To connect Scart output RGB Installation and Connections Connecting an External Monitor Analog IN-1 Audio Video Audio Audio Projecting an Image Basic Operation Turning on the ProjectorProjecting an Image Basic Operation To select a menu language, follow these stepsDetecting the Signal Automatically Selecting a SourceAdjusting the Picture Size and Position Adjust the Tilt FootProjecting an Image Basic Operation Zoom FocusAuto Keystone Correction Correcting Keystone DistortionManual Keystone Correction Press the Menu button to close the menu Adjusting the Image Using Auto PC adjustment Turning Up or Down VolumeAutomatically Optimizing on RGB Image To turn off the projector Turning off the ProjectorAfter Use Preparation Make sure that the projector is turned offFreezing a Picture Turning off the Image and SoundEnlarging and Moving a Picture Connecting the remote mouse receiver to your computer Using the Remote Mouse ReceiverConvenient Features When operating a computer via the remote mouse receiverAbout Drag Mode To enable the Password function Preventing the Unauthorized Use of the ProjectorTo disable the Password function Using On-Screen Menu Using the MenusUsing On-Screen Menu Indicates the Key Lock is enabled Menu ElementsList of Menu Items Using On-Screen Menu Using the Screen color correction Screen color Menu Descriptions & Functions Image adjustmentUsing Image mode Image mode Selecting Gamma Mode Gamma Using On-Screen Menu User Adjust when using UserSelecting Base Setting Base setting Adjusting White Balance Brightness RGB/Contrast RGBSaving Vertical Keystone Correction Keystone save Menu Descriptions & Functions Display settingsEnabling Auto Keystone Auto keystone Selecting Aspect Ratio AspectUsing Off Timer Off timer Menu Descriptions & Functions SetupSelecting Lamp Mode Lamp mode Selecting Menu Color Menu color select Using On-Screen Menu Selecting Menu Language LanguageEnabling Key Sound and Error Sound Beep Selecting Menu Display Time Menu display timeEnabling High Speed Fan Mode Fan mode Menu Descriptions & Functions Advanced settingsEnabling Password Password Selecting Signal Format Input signal selectAdjusting Position/Clock when Auto PC adjustment is off Setting Auto PC adjustment Auto PC adjustmentTurning On Flicker Reduction Flicker reduction Menu Descriptions & Functions Information Selecting Communication Speed Communication speedResetting the Filter Usage Hours Filter counter Menu Descriptions & Functions Factory defaultReturning to Factory Default Factory default Clearing Lamp counter Lamp counterTo clean the air-filter Cleaning or Replacing the FilterTo replace the filter sponge Cleaning the Cabinet and the Lens MaintenanceReplacing the Lamp To replace the lampInsert a new lamp until the lamp is plugged into the socket Maintenance Troubleshooting Indicator MessagesProblem Check These Items AppendixPower on process for the projector and the PC Optical SpecificationsElectrical Mechanical For EuropeCabinet Dimensions Mini D-Sub 15 Pin Connector Pin Assignments of D-Sub Analog Input ConnectorPin No RGB Signal Analog YCbCr Signal Compatible Input Signal List SXGA+Relationship between Screen Size and Projection distance PC Control Codes Service Port Mini DIN-8PPC Control Codes and Cable Connection Cable ConnectionVideo and Audio Troubleshooting Check ListPower OtherComputer Installation environmentSignal cable Video equipmentCanon U. S. A., INC