Elo TouchSystems Elo IntelliTouch Anleitung zur Fehlerbehebung Seite 67
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Data Set Ready (DSR) and Clear to Send (CTS) may be used by the host to
verify controller connections and operation. DSR is asserted when power is
applied to the controller and CTS is asserted when the controller's power-on
sequence is complete. Data Terminal Ready (DTR) and Request to Send (RTS)
can also be connected for full hardware handshaking.
Elo driver software typically requires two-way communication and all four
handshaking lines.
If accessible, the controller's diagnostic LED can verify whether RS-232 data is
being transmitted.
Alternatively, a breakout box will tell you if there is any activity on the data
line. It is possible that the port you are using on the host computer is meant to
work with an RS-232 DTE device. To check this, install a null modem cable
between the controller and the host computer's serial port. A null modem cable
converts a DCE device into a DTE device by swapping pins 2 and 3 and the
handshaking lines.
Some serial ports require jumpers for the handshaking lines on the cable
connector at the computer end. The jumper combinations that may be required
to make an RS-232 port work are beyond the scope of this manual. Consult your
computer manual for more information.
If a breakout box is not available, you can measure the DC voltage at the data
output of the controller (pin 2 of the DB-9). It should measure between 8 and 10
Vdc when the touchscreen is not touched, and drop several volts (towards 0)
during a touch, depending on the data format and the baud rate.
If proper RS-232 signal voltage is not present, the controller may not have
power applied.
Power Connections
Check for proper voltage (+5 Vdc) at the power connector P4 pin 1 (+) and pin
4 (-) on the controller (see, page). If the LED is functioning (see page
Diagnostic LED’s), the power supply is probably okay. To access this connector
on the external serial controller, disconnect the power, then remove the cover.
Reconnect the power cable and turn the unit on. There are no exposed electrical
connections in the controller that would be considered dangerous. Power is
applied to the controller through P4.
If no power is present, measure the voltage at the power source, either a source
from the display electronics, a DC-to-DC converter, or an AC power supply.
- Elo IntelliTouch 2
- /SecureTouch 2
- Touchscreen Guide 2
- All Rights Reserved 3
- Disclaimer 3
- Trademark Acknowledgments 3
- Table of Contents 7
- Appendix B 8
- Appendix C 8
- List of Figures 9
- List of Tables 11
- ECHNOLOGY 13
- The IntelliTouch Touchscreen 14
- Figure 1.1 14
- The IntelliTouch Controller 15
- Figure 1.2 15
- Driver Software 16
- Agency Approvals 16
- NSTALLATION 17
- OMPONENT 17
- Getting Started 18
- Bezel Design 19
- CRT Integration 20
- Definition of Terms: 21
- Suggested Tools 21
- Figure 2.3 22
- Unpacking the Touchscreen 23
- Testing the Monitor 23
- Remove the Back Case 24
- Discharge the CRT 24
- Remove the Electronic Chassis 25
- Remove the CRT 27
- Verify Touchscreen Fit 28
- Attaching the Touchscreen 30
- Figure 2.4 31
- Installing the Controller 33
- Figure 2.5 34
- P4 Pins Signal Function 35
- External Serial Controller 37
- Figure 2.6 39
- Reassembling 41
- Sealing the Monitor 42
- Figure 2.7 42
- Figure 2.8 43
- LCD Integration 44
- Definition of Terms 46
- Tools and Equipment 47
- Removing the Rear Case 49
- Removing the LCD 49
- Determining Touchscreen Fit 50
- Mounting the Touchscreen 51
- Figure 2.9 52
- Figure 2.10 54
- Figure 2.11 55
- Parasitic Tap of 5Vdc 56
- Figure 2.12 57
- Figure 2.13 59
- Brush Direction 59
- ROUBLESHOOTING 61
- Display Problems 62
- Software Troubleshooting 62
- Hardware Troubleshooting 63
- Using the COMDUMP Utility 64
- Byte Description 65
- Byte MSB LSB 65
- RS-232 Connections 66
- Power Connections 67
- Figure A.2 68
- IC1 Cable 69
- EC2 Cable 69
- Diagnostic LED's 70
- Table A.3 71
- Figure A.4 72
- PECIFICATIONS 73
- IntelliTouch Touchscreens 74
- Approvals 75
- Touchscreen 77
- Connector 77
- Power Connector, P4 77
- Figure B.1 78
- Table B.1 78
- Figure B.2 78
- Figure B.3 78
- Table B.2 79
- Table B.3 79
- Figure B.4 81
- Figure B.5 81
- Figure B.6 82
- Figure B.7 82
- Electrical 83
- Environments 83
- Physical Characteristics 83
- Cable applied 84
- Board mounted 84
- Table B.4 85
- Table B.5 85
- Figure B.9 86
- Table B.6 86
- Figure B.10 86
- Jumper Settings 87
- Figure B.11 89
- Figure B.12 89
- Figure B.13 90
- Figure B.14 90
- Controller and Cable Kits 91
- IntelliTouch® Accessories 91
- Part Number Description 92
- Glossary-83 95
- standard 96
- Glossary-85 97
- Glossary-87 99
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