Chapter 4. Troubleshooting Common Problems; Models With Capacitive And Resistive Touch Technology - IBM 4820 Planning, Installation And Service Manual

January 14, 2005

Chapter 4. Troubleshooting common problems

Models with capacitive and resistive touch
technology . . . . .
Obtaining diagnostic and service information
Troubleshooting the 3M TouchWare .
Testing the MSR . .
Touch screen controller information .
This section describes several common problems and explains what to do.
Note: Image problems can be 4694 system unit or SurePOS 700 Series system unit

Models with capacitive and resistive touch technology

This section is for models with capacitive or resistive touch technology. See
Table 1-1 on page 1-1 for your touch technology and model number.
Obtaining diagnostic and service information
Depending upon your model, you can obtain service and diagnostic information
from the support Web site: www.ibm.com/solutions/retail/store. Then click
Support.
Troubleshooting the 3M TouchWare
The service diskette contains 3M TouchWare calibration and touch diagnostics. This
section describes how to use the diskette.
Correct connections for servicing RS-232 models
Before you begin, ensure your connections are as follows:
v RS-232 touch connects to COM 1
v RS-232 MSR connects to COM 2
v PS/2 pigtail is attached to a keyboard
The service software can correctly evaluate your 4820 display only with these
connections.
Testing the MSR
1. Boot the system using the diagnostics diskette.
2. Select the MSR Test.
3. Using the MSR test card, swipe the reader. A message appears indicating if the
4. If the test card indicates the swipe was not successful, repeat the previous step.
Touch screen controller information
The touch screen controller information window provides information about the
type, firmware version, and status of your touch screen. Locate the controller by
selecting the Hardware tab from the 3M TouchWare software.
© Copyright IBM Corp. 1999, 2004
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problems, also.
swipe was successful.
If the swipe was again not successful, contact IBM support.
Models with infrared touch technology .
All models . . . . .
LED states . . . .
Voltage for USB power .
Testing the power supply
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