Chapter 14. System Diagnostics And Pinout Connections; Using The Microtouch Touchware; Locating The Touchscreen Controller Information; Controller Type - IBM 4820 System Reference Manual

Chapter 14. System diagnostics and pinout connections

The 4820 SurePoint Solution models 4WT and 4GT connect through USB to the IBM
Point of Sale system unit. This section describes diagnostic information and pinout
connections for models 4WT and 4GT.

Using the MicroTouch TouchWare

This section describes how to calibrate the touchscreen and customize the touch
response.

Locating the touchscreen controller information

The touchscreen controller information window provides information about the type,
firmware version, and status of your touchscreen. Locate the controller by selecting the
Hardware tab from the TouchWare.

Controller type

The Controller Type field displays the model name of your touchscreen controller.

Firmware version

The Firmware Version field displays the revision number of the firmware in your
TouchWare controller.

Touchscreen status

The Touchscreen Status field provides valuable information about whether the
touchscreen hardware is operating properly. Table 14-1 lists the possible messages that
are displayed in the Status field:
Table 14-1. Touchscreen status messages
OK
A/D Error
ASIC Error
Hardware Error
PWM
NOVRAM Error
random access memory (RAM)
Error
Touchscreen Not Found
© Copyright IBM Corp. 1999, 2003
Message
Touchscreen found and
operational
Touchscreen hardware error
Checksum error in NOVRAM,
using defaults
Checksum error in read-only
memory (ROM)
TouchWare was unable to
communicate with the
touchscreen
Definition
Check that all cables for
correctly connected.
Recommended Action
None
Replace unit
14-1