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
Message
Definition
Recommended
Action
OK
Touchscreen
found
and
operational
None
A/D
Error
Touchscreen
hardware
error
Replace
unit
ASIC
Error
Hardware
Error
PWM
NOVRAM
Error
Checksum
error
in
NOVRAM,
using
defaults
random
access
memory
(RAM)
Error
Checksum
error
in
read-only
memory
(ROM)
Touchscreen
Not
Found
TouchWare
was
unable
to
communicate
with
the
touchscreen
Check
that
all
cables
for
correctly
connected.
©
Copyright
IBM
Corp.
1999,
2003
14-1
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