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4-16 Chapter 4: Calibrating the Touch Screen
4.
Select
the
recommended
frequency
and
then
select
Apply
.
5.
Test
the
cursor
stability
by
touching
the
screen
in
several
places.
Move
your
finger
around
the
screen.
The
cursor
should
hold
steady
and
the
cursor
movement
should
be
smooth.
If
you
still
see
erratic
or
jittery
cursor
movement
then
choose
the
next
best
frequency
and
select
Apply
again.
When
you
are
satisfied
with
stabilization
select
OK
.
6.
Perform
the
2
‐
Point
Calibration
procedure.
If
you
are
still
having
calibration
problems
then
perform
the
25
‐
Point
Linearization
procedure
(follow
the
flow
chart
beginning
at
25
‐
Point
Linearization
).
25-Point Linearization Procedure
The
25
‐
Point
Linearization
procedure
should
be
performed
if: