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lf
the calculator responds to keystrokes but you suspect that
it
is
malfunctioning:
1.
Do the
self-test
(described
below).
If
the
calculator
fails
the
self test,
it
requires
service.
2. If
the calculator
passes
the self-test,
it
is quite likely
you've
made a mistake
in
operating the
calculator.
Try
rereading
por-
tions
of
the manual, and check "Answers
to
Common
Questions'
on
page
1,89.
3.
You
can communicate
with
an expert on calculator
operation
by
contacting
the
Calculator
Technical
Support
department.
The
address
and phone number
are
listed on the inside
back
cover.
Gonfirming Galculator
Operation-fhe
Self-
Test
If
the display can be turned on, but
it
appears
that the calculator
is
not operati.g properly, you
can
do
a
diagnostic
self-test.
The
self-test
runs continuously, repeati^g
until
you halt it.
To
run
the
self-test:
l.
Turn the calculator
on.
2.
If
you have
the optional Infrared Printer, turn
it
on. Certain di-
agnostic
information is printed during the
test.
3.
If
possible,
return to the MAIN display
(press
l[MAtNl).
4.
To
start the self-test, hold down
IELR I
while you
press
the
fifth
menu
k.y
from the left.*
Once
the
self-test has begun,
do not
press
any keys
until
you are ready
to halt
the
test.
* Pressing
the
fourth
menu key from
the
left
starts another self-test
that
is used at the factory.
If
you accidently start
this
self-test, you can stop
it
by holding down
the
fclnl
key
while
you
press
the
third
menu
key from the
left.
198
A: Assistance, Batteries, llemory, and Seryice
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