Elo TouchSystems IntelliTouch SecureTouch manual Sealing, Spacing the LCD from the Bezel

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Sealing

Sealing the IntelliTouch touchscreen is not required for operation; however, it is recommended to increase the resistance to dirt and moisture. Elo recommends using closed-cell polyolefin based foam with an adhesive backing on one side. Elo sells sealing foams with varying thickness to accommodate most needs.

Note: Other foams may actually reduce the acoustic signal, thus resulting in detrimental effects.

Install the seal as follows:

•Place the bezel face down on a padded surface, so that you can obtain access to the inside lip.

•Cut enough of the sealing foam so that it can be installed in one continuous run.

•Starting from the middle-top; Begin placing the sealing foam, adhesive side to the bezel.

•The sealing foam should be flush with the bezel opening, and not dipping inward or outward.

•The radius curves in the corners can be aided by slightly nicking the outside of the sealing foam just before the corner.

•Butt the end of the sealing foam tightly against its beginning.

Note: The sealing foam must be positioned so that it makes contact with the touchscreen within the active area. It is not acceptable for the sealing foam to contact the reflector arrays (See page 30 for details).

Spacing the LCD from the Bezel

The last part of the touchscreen mounting procedure is to determine the appropriate spacing of the LCD from the bezel, (with the touchscreen attached), and to reinstall the LCD with the required spacers in place. Do not clamp the touchscreen between the bezel and the LCD without proper spacing as breakage will almost certainly occur. The nominal thickness of the touchscreen and the one layer of adhesive tape is 3/16-inch (5 mm). If the touchscreen were to be in contact with the bezel, 3/16-inch (5 mm) spacers would be required.

During the spacer selection process, you may have to install the LCD with the touchscreen attached in the bezel several times to obtain proper fit. When spacers for the desired gap have been selected, install the LCD. Select a screw that is long enough to compensate for the spacer thickness (provides at least three full turns into the mounting post threads) but not so long as to penetrate the surface of the bezel. Over-tightening the screws may strip or split the mounting posts.

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Contents Page Elo IntelliTouch /SecureTouch Touchscreen Guide Disclaimer Page Intellitouch 10-YEAR Warranty Page Table of Contents Index List of Figures Viii List of Tables Page Introduction Intellitouch TechnologyIntelliTouch Touchscreen IntelliTouch TouchscreenIntelliTouch controller IntelliTouch ControllerAgency Approvals Driver SoftwareWork Area Safety InformationProtective Clothing Getting StartedDesign Considerations for CRTs and LCDs Bezel design Bezel DesignCRT Integration Safety InformationSuggested Tools Definition of TermsTypical IntelliTouch Touchscreen Installation Summary of Installation StepsIncoming Inspection Testing the MonitorDisassembling the Monitor Unpacking the TouchscreenDischarge the CRT Remove the Back CaseRemove the Electronic Chassis 14I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Remove the CRT Verify Touchscreen Fit Page Attaching the Touchscreen Proper placement of adhesive tape to the touchscreen Spacing the CRT from the Bezel Installing the Controller Touchscreen Cabling System for Internal Serial Controller Internal Serial Controller 2500SP4 Pins Signal Function 24I n t e l l i T o u c h / S e c u r e T o u c h G u i d e External Serial Controller 26I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Internal USB Controller 2500U Internal USB Controller 2500U28I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Reassembling the Monitor Routing the Touchscreen CablesProper Sealing Improper Sealing Sealing the MonitorProper Bezel Mounting Improper Bezel Mounting Sealing Material SelectionSystem Evaluation LCD Integration Unpacking the Touchscreen Definition of Terms Disassembling the LCD MonitorRequired Parts for USB Connection Tools and EquipmentRequired Parts for Serial Connection Optional Parts for USB Connection Optional Parts for Serial ConnectionRemoving the LCD Removing the Rear CaseDetermining Touchscreen Fit Mounting the Touchscreen Attaching double-sided adhesive tape to the touchscreen Spacing the LCD from the Bezel Sealing10 2500S Internal Serial Controller 11 2500U USB controller Parasitic Tap of 5Vdc Power12 DC to DC converter Parasitic Tap of 7-30Vdc DC to DC converterModifying the Case for USB Output Modifying the Case for Serial Output13 Horizontal escutcheon plate Re-assembling the Display48I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Troubleshooting Process Troubleshooting GuideSoftware Troubleshooting Display ProblemsVideo Alignment Problems Hardware TroubleshootingSerial Controller Using the Comdump UtilityByte Byte DescriptionRS-232 Connections P2 Pins DB25Host Signal Source Power Connections Touchscreen and Touchscreen Cables Figure A.2 Transducer and Wedge Assembly2x6 Male Header DB9 Male Function IC1 CableEC2 Cable IntelliTouch Serial Controllers Diagnostic LEDsAA Bit Value hex Description Diagnostic CodesIntelliTouch Serial Controller 2500S Figure A.4 DB9 and DB25 Connector Pin Positions DB9 and DB25 Connector Pin PositionsSpecifications Mechanical IntelliTouch TouchscreensOptical EnvironmentalUL Compliance Fire Retardation FCC Compliance Agency ApprovalsElectrical Physical CharacteristicsIntelliTouch 2500U USB Controller Touchscreen Connector Power Connector, P4 P2 pin number Signal name Standard wire color Signal name P4 pin Signal function Signal name P3 pin Signal functionAgency Approvals LED Diagnostic CharacteristicsLED Blink Rate Function LED State FunctionFigure B.4 2500U USB Controller, top view 2500U USB Controller DrawingsFigure B.6 2500U USB Controller, bottom-view Environments IntelliTouch 2500S Serial Controller72I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Parameter Value Applicable Signals EIA-232 subsec Signal Name DB-9 P2 pin Sourced by Signal FunctionBoard mounted Cable applied Header Plug Jumper Function Jumper Settings76I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Figure B.11 2500S Serial Controller, top view DrawingsFigure B.13 2500S Serial Controller Part Number Description ELO Part NumbersCables Stylus 82I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Glossary Page Glossary-85 Page Glossary-87 Vertical Refresh Rate-See Refresh Rate Index Page Page