NEC VT575 Correcting Keystone Distortion, Auto Keystone Correction, Manual Keystone Correction

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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 that the vertical keystone angle can be corrected between 30 degrees upward and 30 degrees downward of projector tilt from level.

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

“Image” and then press the SELECT

button. The “Auto Keystone” will be

displayed. Press the SELECT to select

“Off”.

 

3. Select the Keystone function.

Use the SELECT

button to select

“Keystone”.

 

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.

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Contents VT676/VT670/VT575/VT470/VT47 Safety Cautions PrecautionsDOC Compliance Notice for Canada only Installation Important SafeguardsImportant Information RF Interference for USA only Place the projector in a horizontal positionIii Important Information Fire and Shock PrecautionsImportant Information Lamp Replacement Table of Contents Table of Contents For VT676, VT670 and VT470 only Whats in the Box?Features youll enjoy Introduction to the ProjectorIntroduction Introduction Part Names of the Projector Front/TopRear Introduction Bottom Introduction Top Features VT676/VT670/VT575/VT470 VT47 Part Names of the Remote Control Help Button Volume +- ButtonFreeze Button Computer 1/2 ButtonIntroduction Battery Installation Remote Control PrecautionsOperating Range for Wireless Remote Control Selecting a Location VT676/VT670/VT575/VT470 Setting Up the Screen and the Projector240 Installation and Connections Selecting a Location VT47Distance Chart Installation and Connections Throw Distance and Screen SizeReflecting the Image Installation and ConnectionsMaking Connections Connecting Your PC or Macintosh ComputerEnabling the computer’s external display VT676/VT670/VT575/VT470VT47To connect Scart output RGB To do so Installation and Connections Connecting an External MonitorAudio Equipment To make these connections, simply OUT Turning on the Projector Projecting an Image Basic OperationTo select a menu language, follow these steps Projecting an Image Basic OperationSelecting a Source Using the Remote ControlLift the front edge of the projector Projecting an Image Basic Operation VT676/VT670/VT575/VT470 ZoomFocus VT676/VT670/VT575/VT470Correcting Keystone Distortion Auto Keystone CorrectionManual Keystone Correction Press the Menu button to close the menu Adjusting the Image Using Auto Adjust Turning Up or Down VolumeOptimizing RGB Picture Automatically VT676/VT670/VT575/VT470 VT47After Use Turning off the ProjectorTo turn off the projector Preparation Make sure that the projector is turned offTurning off the Image and Sound Freezing a PictureEnlarging and Moving a Picture Using Remote Mouse Receiver VT676/VT670/VT470 only Using the Menus Using On-Screen MenuUsing On-Screen Menu Menu Elements Indicates the Cabinet Button Lock is enabledCOMPUTER2 List of Menu ItemsCurrent Signal All Data Using the Wall Color Correction Wall Color Using Picture Management Picture ManagementMenu Descriptions & Functions Picture Selecting Base Setting Base Setting Using On-Screen Menu User Adjust when using UserSelecting Gamma Correction Mode Gamma Correction Adjusting White Balance Brightness RGB/Contrast RGBEnabling Auto Keystone Auto Keystone Menu Descriptions & Functions ImageCorrecting Vertical Keystone Distortion Manually Keystone Saving Vertical Keystone Correction Keystone SaveMenu Descriptions & Functions Setup Using Off Timer Off TimerSelecting Lamp Mode Lamp Mode Enabling Key Sound and Error Sound Beep Using On-Screen Menu Selecting Menu Language LanguageSelecting Menu Color Menu Color Select Selecting Menu Display Time Menu Display TimeTo enable the Security function Menu Descriptions & Functions AdvancedSecurity To disable the Security function Selecting Signal Format Signal Select Enabling High Speed Fan Mode Fan ModeSetting Auto Adjust Auto Adjust Adjusting Position/Clock when Auto Adjust is offTurning On Flicker Reduction Flicker Reduction Selecting Communication Speed Communication Speed Menu Descriptions & Functions InformationReturning to Factory Default Factory Default Menu Descriptions & Functions DefaultResetting the Filter Usage Hours Clear Filter Usage Clearing Lamp Hour Meter Clear Lamp Hour MeterCleaning or Replacing the Filter To clean the air-filterTo replace the filter sponge Maintenance Cleaning the Cabinet and the LensTo replace the lamp Replacing the LampInterlock Maintenance Indicator Messages TroubleshootingAppendix Problem Check These ItemsPower on process for the projector and the PC Specifications OpticalElectrical VT676/VT670/VT470 2.7 1.4A VT575/VT47 2.1 1.2AMechanical Cabinet Dimensions Appendix VT47 Pin Assignments of D-Sub Computer Input Connector Mini D-Sub 15 Pin ConnectorPin No RGB Signal Analog YCbCr Signal SXGA+ Compatible Input Signal ListPC Control Codes VT676/VT670/VT575/VT470 PC Control Codes and Cable ConnectionPC Control Codes VT47 Cable ConnectionAppendix PC Control Connector DIN-8P Optional Presentation Remote Control Kit PR52KIT Part Names and Functions of the Remote ControlPackage List PJ OFF Mouse Slide Switch Volume +/- ButtonsPointer Button UP/DOWN ButtonsAppendix Battery Installation Using Remote Mouse Receiver Appendix Using the Laser PointerPower Troubleshooting Check ListVideo and Audio OtherSignal cable Installation environmentComputer Video equipmentTravelCare Guide TravelCare a service for international travelersAsia and Middle East Application Sheet for TravelCare Service Program Condition of your TravelCare Service Program