Extron electronic IN1508 manual Total Pixels status indicator bar, Phase status indicator bar

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Operation, cont’d

Total Pixels status indicator bar

There are several methods to determine the correct value to use in the total pixels variable. Usually, the best method is to use the input signal specifications. For some input sampling rates, the switcher’s setting can result in fine vertical lines (figure 3-26).

Blanking Area

Active

Area

Total Pixels

Figure 3-26 — Incorrect total pixels variable

These lines appear as fuzzy vertical bars when an alternating pixels pattern is applied. When the total pixels setting is improperly adjusted the entire image can have a noisy or darkened appearance. Adjusting the phase corrects this.

As an approximate setting, multiply the active pixels setting (see “Active Pixels and Active Lines status indicator bars”, earlier in this chapter) by a factor of 1.3.

If the input pixel clock rate is known, the input total pixels setting can be calculated with this equation:

total pixels = input pixels clock ÷ input horizontal scan rate

Once a preliminary setting is saved, some faint vertical lines may remain. Adjust the total pixels variable as necessary until the lines are completely out of view or as far apart as you can make them. If one line remains, it can be moved out of view using the Phase status bar (see “Phase status indicator bar”, below).

The active pixels and total pixels adjustments are interactive. Setting one of these variables may require adjusting the other.

Phase status indicator bar

The Phase adjustment is available for RGBHV, RGBS, RGsB, and progressive component video inputs only.

The Phase status indicator bar shows, and allows you to adjust, the phase adjustment setting. The phase control adjusts the amount of phase shift applied to the input video signal. Use the front panel or IR remote control and buttons to increase or decrease the amount of phase shift through a range of 0 to 31.

3-38 IN1508 Scaling Presentation Switcher • Operation

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Contents IN1508 Precautions FCC Class a Notice Quick Start IN1508 Scaling Presentation Switcher Front Panel Controls Table of Contents Table of Contents, cont’d IN1508 Scaling Presentation Switcher Table of Contents Iii Iv IN1508 Scaling Presentation Switcher Table of Contents One Introductiontroduction, cont’d DVI video IN1508 Scaling Presentation Switcher IntroductionStandard DVI cable FeaturesIN9700 cable IN1508 Scaling Presentation Switcher Introduction Introduction, cont’d IN1508 Scaling Presentation Switcher Introduction Introduction, cont’d Two Tabletop use Mounting the SwitcherRack mounting Cabling and Rear Panel Views Power connectionVideo connections Audio connections Installation, cont’dConfiguration Remote Control Battery InstallationRS-232 connection Installation, cont’d Three IN1508 Scaling Presentation Switcher Operation Front Panel Controls and IndicatorsInfrared sensor Input selection buttons and LEDs Input controlsOutput Rate selection Operation, cont’dPIP buttons Picture-in-Picture controlsMenu control buttons Picture Controls buttonsDesired buttons on the remote. The maximum Remote Control ButtonsPicture-In-Picture PIP buttons The PIP Input Selection buttons The Input SelectionOperation, cont’d Operations Power10 IN1508 Scaling Presentation Switcher Operation Picture-in-picture mode operationInput selection operation PIP mode input selection and swap operations Menu system operation 12 IN1508 Scaling Presentation Switcher OperationButtons Selection boxes and status indicator bars14 IN1508 Scaling Presentation Switcher Operation Status indicator bar controlSelection box control For picture control button operation For menu system operationMain menu system 16 IN1508 Scaling Presentation Switcher OperationInput submenu Size selection Center selectionZoom selection Pan selectionOperation, cont’d Contrast status indicator bar Brightness status indicator barColor status indicator bar Tint status indicator barOutput submenu 20 IN1508 Scaling Presentation Switcher OperationRefresh Rate selection box Resolution selection boxSync Polarity selection box Output Volume status indicator bar Signal Type selection boxInput Gain/Attenuation status indicator bar 22 IN1508 Scaling Presentation Switcher OperationAdvanced submenu Audio Delay selection boxFreeze selection box Blank selection boxFade Switch selection box PIP Mode selection boxBlue Mode selection box Reset selection boxPicture adjustments Performing a system reset from the front panelPress again 26 IN1508 Scaling Presentation Switcher Operation20 Picture adjustments flowchart, IR remote control buttons 28 IN1508 Scaling Presentation Switcher Operation Sharpness status indicator bar, on Resolution and refresh rates Setting up a DVD source30 IN1508 Scaling Presentation Switcher Operation Optimizing the VideoCRT displays selecting the optimum refresh rate CRT displays selecting the optimum resolutionCRT Displays 32 IN1508 Scaling Presentation Switcher Operation22 Input submenu’s Advanced selections Input submenu’s Advanced selections34 IN1508 Scaling Presentation Switcher Operation 23 Advanced input settings24 Incorrectly started image Horizontal Start and Vertical Start status indicator bars36 IN1508 Scaling Presentation Switcher Operation Active Pixels and Active Lines status indicator barsHorizontal rate = 31.5 kHz, vertical rate 60 Hz Phase status indicator bar Total Pixels status indicator bar38 IN1508 Scaling Presentation Switcher Operation Optimizing the Audio TroubleshootingGeneral checks 40 IN1508 Scaling Presentation Switcher Operation Specific problemsCompressed HorizontallyImage is stretched Active lines may be Vertically42 IN1508 Scaling Presentation Switcher Operation Active lines setting Problem Possible cause Solution Total pixels settingSetting cannot be Horizontal start44 IN1508 Scaling Presentation Switcher Operation Four Switcher-Initiated Messages Host-to-Switcher InstructionsSwitcher Error Responses IN1508 Scaling Presentation Switcher Serial CommunicationsSymbol definitions Using the Command/Response TableCommand Ascii Command Response Additional description Command/response table for SIS commandsCommand/response table for SIS commands cont’d Zoom Audio mute Command/Response Table for Special Function SIS Commands Command/response table for special function SIS commandsInput aspect ratio DVI auto-detect DVI input 8 only AAppendix a Specifications Specifications and Part NumbersAudio Included parts Part NumbersSuggested adapters CablesHigh performance DVI cables Cable Part number Specifications and Part Numbers, cont’d Asia Japan Extron’s WarrantyExtron Electronics, Europe Beeldschermweg 6C

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