Extron electronic IN1508 manual Horizontal rate = 31.5 kHz, vertical rate 60 Hz

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default capture rate to the specified input frequency. It then maintains the aspect ratio based on the difference between the input active area and the output resolution (active area) by inserting blank borders around the images. If, however, you want to fill the entire monitor, you can adjust the input aspect ratio by slightly changing the number of active pixels and active lines to stretch the image. You may also need to adjust the number of total pixels.

Adjust the Active Pixels status indicator bar to increase and decrease the number of active pixels, shifting the starting period horizontally on the screen. Adjust the Active Lines status indicator bar to increase and decrease the number of lines.

Active pixels	Active lines	Aspect ratio	Total pixels	Comment
	Horizontal rate = 31.5 kHz, vertical rate 60 Hz
640	480	4:3	780	Progressive NTSC

640	350	64:35	800

640	400	8:5	800

640	480	4:3	800	Factory default

720	350	72:35	900

720	400	9:5	900
	Horizontal rate = 15.7 kHz, vertical rate 60 Hz
768	480	8:5	910	NTSC 14.3
720	480	3:2	858	NTSC 13.5

640	480	4:3	780	NTSC 12.3 (default)

IN1508 Scaling Presentation Switcher • Operation 3-37

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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 IN1508 Scaling Presentation Switcher Introduction DVI videoFeatures Standard DVI cableIN9700 cable IN1508 Scaling Presentation Switcher Introduction Introduction, cont’d IN1508 Scaling Presentation Switcher Introduction Introduction, cont’d Two Mounting the Switcher Tabletop useRack mounting Power connection Cabling and Rear Panel ViewsVideo connections Installation, cont’d Audio connectionsRemote Control Battery Installation ConfigurationRS-232 connection Installation, cont’d Three Front Panel Controls and Indicators IN1508 Scaling Presentation Switcher OperationInfrared sensor Input controls Input selection buttons and LEDsOperation, cont’d Output Rate selectionPicture-in-Picture controls PIP buttonsPicture Controls buttons Menu control buttonsRemote Control Buttons Desired buttons on the remote. The maximumPicture-In-Picture PIP buttons The PIP Input Selection buttons The Input SelectionOperation, cont’d Power OperationsPicture-in-picture mode operation 10 IN1508 Scaling Presentation Switcher OperationInput selection operation PIP mode input selection and swap operations 12 IN1508 Scaling Presentation Switcher Operation Menu system operationSelection boxes and status indicator bars ButtonsStatus indicator bar control 14 IN1508 Scaling Presentation Switcher OperationSelection box control For menu system operation For picture control button operation16 IN1508 Scaling Presentation Switcher Operation Main menu systemInput submenu Center selection Size selectionZoom selection Pan selectionOperation, cont’d Brightness status indicator bar Contrast status indicator barColor status indicator bar Tint status indicator bar20 IN1508 Scaling Presentation Switcher Operation Output submenuResolution selection box Refresh Rate selection boxSync Polarity selection box Signal Type selection box Output Volume status indicator barInput Gain/Attenuation status indicator bar 22 IN1508 Scaling Presentation Switcher OperationAudio Delay selection box Advanced submenuFreeze selection box Blank selection boxPIP Mode selection box Fade Switch selection boxBlue Mode selection box Reset selection boxPerforming a system reset from the front panel Picture adjustments26 IN1508 Scaling Presentation Switcher Operation Press again20 Picture adjustments flowchart, IR remote control buttons 28 IN1508 Scaling Presentation Switcher Operation Sharpness status indicator bar, on Setting up a DVD source Resolution and refresh rates30 IN1508 Scaling Presentation Switcher Operation Optimizing the VideoCRT displays selecting the optimum resolution CRT displays selecting the optimum refresh rate32 IN1508 Scaling Presentation Switcher Operation CRT DisplaysInput submenu’s Advanced selections 22 Input submenu’s Advanced selections23 Advanced input settings 34 IN1508 Scaling Presentation Switcher OperationHorizontal Start and Vertical Start status indicator bars 24 Incorrectly started imageActive Pixels and Active Lines status indicator bars 36 IN1508 Scaling Presentation Switcher OperationHorizontal rate = 31.5 kHz, vertical rate 60 Hz Total Pixels status indicator bar Phase status indicator bar38 IN1508 Scaling Presentation Switcher Operation Troubleshooting Optimizing the AudioGeneral checks Specific problems 40 IN1508 Scaling Presentation Switcher OperationHorizontally CompressedImage is stretched Active lines may be Vertically42 IN1508 Scaling Presentation Switcher Operation Problem Possible cause Solution Total pixels setting Active lines settingSetting cannot be Horizontal start44 IN1508 Scaling Presentation Switcher Operation Four Host-to-Switcher Instructions Switcher-Initiated MessagesSwitcher Error Responses IN1508 Scaling Presentation Switcher Serial CommunicationsUsing the Command/Response Table Symbol definitionsCommand/response table for SIS commands Command Ascii Command Response Additional descriptionCommand/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 and Part Numbers SpecificationsAudio Part Numbers Included partsSuggested adapters CablesHigh performance DVI cables Cable Part number Specifications and Part Numbers, cont’d Extron’s Warranty Asia JapanExtron Electronics, Europe Beeldschermweg 6C

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