ViewSonic VPW450HD manual What is Down-Convert?

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How is a HDTV/EDTV/SDTV Different from a HDTV/EDTV/SDTV display?

In order to receive digital broadcasts, a digital “receiver” or “decoder” must be used to receive and decode digital broadcast signals. Digital decoders can be built into the display itself or they may come in the form of a Set Top Box that is added separately to the display. HDTV/EDTV/SDTV displays are digital displays with- out a digital decoder built into the television whereas HDTV/EDTV/SDTV Televisions are displays with a decoder built-in. HDTV/EDTV/SDTV displays give you the flexibility to add a digital decoder in the future when digital broadcasts are more prevalent.

What is "Down-Convert"?

Down-convert takes place when a digital broadcast signal exceeds the display capabilities of the display and the broadcast signal is reduced to match the television's limited display capabilities. For example, if a TV sta- tion broadcasts a digital program using 1080 lines (1080i format) while the display can only display 480 lines, the signal is reduced or down-converted to only 480 lines, resulting in lesser information being displayed.

This plasma display is able to display HDTV format. This means that this display can display up to 768 lines using progressive scan format; therefore resolutions lower or higher than 768 lines must be up-converted or down-converted in order to be displayed. This HDTV display includes advanced digital processing circuitry where the up-conversion or down- conversion process is done automatically while maximizing picture quality.

What is "Up-Convert"?

Up-convert takes place when a digital television's display capabilities exceed the digital broadcast signal and the broadcast signal is increased to match the TV's display capabilities. For example, if a TV station broad- casts a digital program using 480 lines and the digital television is able to display 1080 lines, the signal is increased or “up-converted” to match the TV.

This display includes advanced digital processing where all traditional analog television and video formats (NTSC / PAL) in the form interlaced signals are up-converted to 480 lines pro- gressive scan method. Please note that up-conversion may result in some picture artifacts because information is being artificially added to the picture.

Is This Plasma display Compatible with Digital TV / HDTV?

This plasma display is compatible with digital TV. In order to receive digital television broadcasts, you will need to use a “HDTV decoder” or “HDTV Set Top Box” with component video output or RGB video output. Please consult your local sales representative prior to purchasing a HDTV decoder or HDTV Set Top Box.

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Contents VPW450HD Contents For Your Records Package Contents „ SRS Sound Processing Product FeaturesUnderstanding Your Display Wide SwapUsing S-Video Input Connecting the DisplayConnecting a DVD Player Using Component Video InputUsing RGB Input Connecting a Hdtv Decoder Set-Top BoxExternal Audio Connections Connecting a VCRUsing RGB or DVI Video Input Connecting a PC Powering on / OFF Selecting Signal Source Operating the DISPLAY-BASICS Using Mute Adjusting Sound VolumeUnderstanding Hdtv What is Digital Television or DTV?What is the Difference Between HDTV, EDTV, and SDTV? Running HdtvWhat is Down-Convert? Picture-In-Picture PIP / Split Screen Advanced FunctionsPIP Window Swap Accessing PIP and POP Modes using OSDPicture-In-Picture PIP / Split Screen Con’t PIP On/Off Input Source Selection PIP Window PositionUnderstanding Widescreen Modes For 43 Aspect Ratio Square ContentFor Widescreen Content Widescreen 169 Aspect Ratio Viewing ModesWidescreen Viewing Modes Con’t On-Screen Display OSD SettingsAccessing Widescreen Viewing Modes using OSD Accessing OSD Settings MenuSleep Timer On/Off Sleep Timer SettingsSetting Sleep Timer Using OSD Setting Sleep Timer Using Remote ControlSwitching OFF Built-In Speakers Sound AdjustmentsSetting Output Using OSD Sound Adjustments Using OSDWhen Using RGB & DVI Inputs Signal Frequency Information DisplayWhen Using AV1 and AV2 Inputs When Using Component 1 & 2 InputsAdjusting Picture Accessing Picture Adjustment ModeFor AV / S-Video For Component Video Geometric AdjustFor Component Video Con’t Accessing Geometric Adjust ModeFor RGB / DVI Specifications Pin Assignments For D-SUB Connector In / Loop Out Pin Assignments For 24 Pin DVI Connector Digital OnlyDisplay Formats Weight Maximum ResolutionDimensions Without Stand With Stand Package DimensionsEmission Requirement Power Management Mode Sync VideoRear View Wall Mount OptionTV / Cable TV Connections Connecting to TV or Cable TVImportant Safety Instructions Outdoor Antenna Grounding AppendixRemote Control Using Remote Control Using Front Panel & OSD MenuChanging Channels Quick View TV Tuner SettingsAccessing the TV Settings Menu Using Quick View on Remote ControlFavorite Channel / Channel Lock Favorite Channel and Channel Lock SettingsAccessing V-Chip Parental GuideParental Guide Table Passcode Setting OverviewChanging the Passcode For TV Adjusting PictureTroubleshoot Common Conditions Symptom Possible Cause Remedy= FAX Customer SupportLimitation of implied warranties Limited WarrantyHow to get service Viewsonic Plasma DisplayUSA Risk of Electric Shock Important Safety InstructionsAvoid Still Images Cleaning and MaintenanceFront Panel Cleaning Instructions Cabinet Cleaning InstructionsCompliance Information for Canada ViewSonic VPW450HD ViewSonic Corporation