Operation - Panasonic RC-X230 Operating Instructions Manual

Time-Protecting Battery
Back-Up
(continued)
Operation
The
time
battery
back-up
is
designed
to
keep
the clock operating
in
the event of
a
power
failure
or
interruption.
(Such as
when
moving
this unit
to
a
different
room.)
Whenever a power
interruption
occurs, the
clock display
will
disappear.
However,
even though
the
display
is
completely
blacked
out,
the
9-volt
back-up
battery
will
take over
as
the
power
source, preserving
present time
and
the
alarm
time.
Even
if
the
power
is
not
resumed
by
the
wake-up
time,
the buzzer alarm
will acti-
vate.
Notes
When
the set
is
unplugged
(not
in
use)
for
a
long
time,
remove
the
back-up
battery
to
prevent possible
battery
leakage.
Power
failures
may
occur
at
any
time
of
the
night
or
day and can be
of
a
long or short
duration.
Most
failures
are
so
short that
people
don't
even
notice
the
interruption.
These
inter-
ruptions do,
however,
affect
clocks
which
do
not incorporate
a
battery
back-up.
If
the
power
is
not
resumed by
the
wake-up
time,
the
radio
alarm
will
not activate.
If
the
back-up
battery
goes dead
during
a
power
interruption,
the present time
and
alarm time must
also
be
reset
after
the
interruption.
The
back-up
battery
will
be
exhausted
after
about 23
hours
of total
(accumulative)
use.
(The
battery
life
will
vary
depending
on
the frequency
of
the
power
interrup-
tion.)
After
a
power
interruption,
the time
shown
in
the display
window
may
not
be
always
correct
(it
may
gain or lose approximately
6
minutes per
hour).