To reset the calculator, hold down the [c] key and press |LN|. If you
are unable to reset the calculator, try installing fresh batteries. If the
calculator cannot be reset, or if it still fails to operate properly, you
should attempt to clear memory using the special procedure described
in
the
next
section.
The calculator can reset itself if it is dropped or if power is
interrupted.
Clearing
Memory
The usual
way
to clear user memory is to press [j)|
clear
| {ALL} .
However, there is also a more powerful clearing procedure that resets
additional information and is useful if the keyboard is not functioning
properly.
If
the
calculator fails to respond to keystrokes,
and
you are unable to
restore operation by resetting it or changing the batteries, try the fol
lowing procedure. These keystrokes clear all of memory, reset the
calculator, and restore all formats
and
modes to their original,
default
settings (shown below).
1. Press
and
hold down the
[c]
key.
2.
Press
and
hold
down
17*1.
3.
Press
is+l.
(You
will be pressing three keys simultaneously).
When you release all three keys, the display shows
MEMORY
CLEAR
if the operation is successful.
B:
User
Memory
and
the
Stack
255
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