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Power Supply
The
type
of battery
you
should
use
depends on
the
model
number
of
your
calculator.
<
fx-85
W/
fx-85
WA
/
fx-300
W/fx-91
1
W
>
The
TWO
WAY POWER
system
actually
has two power
supplies:
a
solar
cell
and a
G13
Type
(LR44)
button
bat-
tery.
Normally, calculators
equipped
with
a
solar
ceil
alone
can
operate only
when
relatively
bright
light
is
present.
The
TWO
WAY POWER
system, however,
lets
you
con-
tinue to
use
the
calculator
as
long
as
there
is
enough
light
to
read
the
display.
•
Replacing the
Battery
Either
of
the
following
symptoms
indicates battery
power
is
low,
and
that
the
battery
should
be
replaced.
•
Display
figures
are
dim
and
difficult
to
read
in
areas
where
there
is
little
light
available.
•
Nothing
appears on
the display
when
you
press the
G»Qkey.
•
To
replace the
battery
<D
Remove
the
six
screws
that
hold the
back
cover
in
place
and
then
remove
the
back
cover.
®
Remove
the
old
battery.
@
Wipe
off
the sides
of
new
bat-
tery with
a
dry,
soft
cloth.
Load
it
into
the
unit
with the posi-
tive
©
side facing
up
(so
you
can see
it).
<§)
Replace
the
back
cover
and
secure
it
in
place
with
the
six
screws.
(5)
Press
GU
to turn
power
on.
Be
sure not
to skip
this
step.
Screw
Screw
•28«
Power
Supply
The
type
of battery
you
should
use depends on
the
model
number
of
your
calculator.
<fx^5W/fx^5WA/fx-300W/fx-911W>
The
TWO
WAY POWER
system
actually
has two power
supplies:
a
solar
ceil
and
a
G13
Type
(LR44)
button
bat-
tery.
Normally, calculators
equipped
with
a
solar
cell
alone
can
operate
only
when
relatively
bright
light
is
present
The
TWO
WAY POWER
system, however,
lets
you
con-
tinue to
use
the
calculator
as
long
as
there
is
enough
light
to
read
the
display.
•
Replacing the
Battery
Either
of
the
following
symptoms
indicates battery
power
is
low,
and
that
the
battery
should
be
replaced.
•
Display
figures
are
dim and
difficult
to
read
in
areas
where
there
is
little
light
available.
•
Nothing
appears on
the display
when
you
press the
OS
key.
•
To
replace the
battery
<D
Remove
the
six
screws
that
hold the
back cover
in
place
and
then
remove
the
back
cover.
(2)
Remove
the old
battery.
O
Wipe
oft
the sides
ot
new
u<u-
tery
with
a
dry,
soft
cloth.
Load
it
into
the
unit
with the posi-
tive
@
side facing
up
(so
you
can see
it).
@
Replace
the
back
cover
and
secure
it
in
place
with the
six
screws.
(5)
Press
G»D
to turn
power
on.
Be
sure not
to skip
this step.
Screw
Screw
28«
Screw
Screw
<fx-82TL>
This
calculator
is
powered
by
single
AA-size
battery.
•
Replacing the
Battery
Dim
figures
on
the display
of
the
calculator indicate that
battery
power
is
low.
Continued use
of
the calculator
when
the battery
is
low can
result
in
improper
operation.
..
..
Replace
the
battery
aa..iw*yi
as
possible
when
display
figures
becorne
dim.
•
To
replace the battery
<£ Press
£9
to
turn
power
off.
®
Remove
the
six.
screws
that
hold the
back
cover
in
place
and
then
remove
the
.
back
cover.
Q)
Remove
the old
battery.
<g)
Load a
new
battery
into
the
unit
so
it's
positive
©
and
negative
©
sides are
fac-
ing
correctly.
(§)
Replace
the
back
cover
and
secure
it
in
place
with
the
six
screws.
®
Use
a
thin,
pointed
object
to
press the
P
button.
Be
sure not
to
skip
this
step.
Q) Press
S3
to
turn
power
on.
P
button
Screw
Screw
<fx-82TL>
This
calculator
is
powered
by
single
AA-size
battery.
•
Replacing the
Battery
Dim
figures
on
the display
of
the
calculator indicate
that-
battery
power
is
low.
Continued use
of
the
calculator
when
the
battery
is
low can
result
in
improper
operation.
Replace
the
battery
as soon as
possible
when
display
i# figiirds
becOfrie
dffrn.
•
To
replace the
battery
0
press
@
to
turn
power
off.
(2)
Remove
the
six
screws
that'
hold the
back cover
in
place
and
then
remove
the
.
back
cover.
.
®
Remove
the old
battery.
®
Load
a
new
battery
into
the
unit
so
ifs
positive
0
and
negative
0
sides are
fac-
ing
correctly.
®
Replace
the
back
cover,
and
secure
it
in
place
with
the
six
screws.
®
Use
a
thin,
pointed object
to
press
the
P
button.
Be
sure not
to skip
this
step.
Q)
Press
SB
to
turn
power
on.
P
button
•29»
•29«
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