Models With Infrared Touch Technology; Touch Screen Status Messages - IBM 4820 Planning, Installation And Service Manual

Controller type
The Controller Type field displays the model name of your touch screen controller.
Firmware version
The Firmware Version field displays the revision number of the firmware in your
TouchWare software controller.
Touch screen status
The Touch screen Status field provides valuable information about whether the
touch screen hardware is operating properly. Table 4-1 lists the possible messages
that are displayed in the Status field:
Table 4-1. Touch screen status messages
OK
A/D Error
ASIC Error
Hardware Error
PWM
NOVRAM Error
Random access
memory (RAM) Error
Touch screen Not Found
Touch screen properties dialog box
Problem
You have touch, but cannot open
the Touch screen Properties dialog
box.
The Touch Screen Properties
dialog box always opens to the
Hardware tab

Models with infrared touch technology

This section provides troubleshooting information for Models 2xx and 5xx, which
use infrared touch technology.
4-2
4820 Planning, Installation and Service Guide
Message
Touch screen found and
operational
Touch screen hardware error
Checksum error in
nonvolatile random access
memory (NOVRAM), using
defaults
Checksum error in read-only
memory (ROM)
TouchWare software was
unable to communicate with
the touch screen
Definition
Recommended action
Only the touch screen USB driver was installed and the
TouchWare software was not completely installed.
Unplug your touch screen from the USB port and
reinstall the TouchWare software.
The TouchWare software is unable to find or
communicate with the touch screen controller.
v Check the Controller Information box on the
Hardware tab. If the OK message displays, contact
technical support.
v If the message NOT FOUND is displayed, review the
cable connections.
January 14, 2005
Recommended action
None
Replace unit
Check that all cables for
correctly connected.