12
CHAPTER
1 General
Guide
• Auxiliary Batteries
The auxiliary battery is for memory backup. This battery remains in operation
while the main battery
is
being replaced, thus preventing
the
program and data
from vanishing.
Bear in mind
that
if
both
the
main and auxiliary batteries are removed
at
the
same time,
the
program and data will vanish.
If
the main and auxiliary batteries
must be replaced at the same time, press the ALL RESET
button
with a pointed
object after switching
on
main frame power supply.
Notes:
l.
Frequent use
of
the buzzer shortens battery life.
2. When replacing the main batteries, be sure
to
replace
both
at the same time.
3. Never throw batteries into a fire.
It
will be dangerous as they may burst.
4. Care should be taken to ensure
that
battery polarity(
ill
, 8 )
is
correct.
Keep batteries
out
of
reach
of
children.
If
swallowed by accident, consult a
doctor immediately.
• Auto Power
Off
This
is
an
automatic power-saving function designed
to
prevent waste
of
power
when a user forgets
to
switch
off
the
power supply. The power supply
is
auto-
matically
cut
off
in 6 minutes
upon
completion
of
operation (except during
program execution)
or
upon key-input waiting state following execution
of
an
INPUT or PRINT statement.
In such a case, power supply can be resumed
by
turning the power switch
off
and then
on
again
or
by
pressing
the~
key.
Note:
Even when the power supply
is
cut
off, variable content, program content and
DATA BANK content will be retained
but
mode specifications ("WRT",
"TRACE ON'',
"PRT
ON", etc.) will be initialized (immediately after turning
the power on).
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