C-4 Connecting the Batteries after Extended Storage, or
on Purchase.
Connection Sequence:
1)
Check
that
the power switch
is
set to the
OFF
position.
2)
Turn the PX-8 upside down and find the battery cover position as in fig C.1
3)
Remove the battery retaining screw and battery cover.
4)
Check the positions
of
the main battery socket and switch for the backup
battery. (Fig C.2)
5)
Insert the battery lead connector into the socket making sure it fits in the
correct way.
6)
Press the center
of
the connector with
an
insulated implement, such as a
match, to make the connection firm.
DO
NOT
USE
an
conductive material
as this could short the battery.
7) Set the slide switch to the
ON
position to connect the backup battery. Again
use
an
insulated instrument to do this.
8)
Install the battery cover and tighten the retaining screw, taking care
not
to
trap the battery leads.
9) Initialize the PX-8 as outlined in Chapter 2 section 2.1.3
C-5 Replacing the Main Battery
The main battery
is
expected to have a life
of
3-4 years, depending
on
the type
and frequency
of
use.
If
the
"CHARGE
BATTERY" message comes
up
fre-
quently
at
this time, the main battery needs replacing. Consult your
EPSON
dealer for a replacement battery.
If
you are unsure about any
part
of
the fol-
lowing procedure, please ask your dealer to change the battery for you.
To change the battery proceed as follows:
1 ) SAVE ALL PROGRAMS AND DATA
ON
TAPE
OR
DISK. All programs
and
data
in memory, including the RAM disk and Intelligent RAM Disk
may be lost when the batteries are changed.
2)
Leave the PX-8 switched
on
until the
"CHARGE
BATTERY" message
comes up, i.e. the main battery becomes discharged.
3)
Turn
the main power switch
on
the side
of
the PX-8
to
the OFF position.
4) Open the battery cover. Remove the lead to the main battery, and dispose
of
the battery in a responsible way. Do not puncture the battery
or
throw
it onto a fire
or
into water.
Do
not attempt to take the battery apart.
5)
Do
NOT
switch the backup battery switch to OFF.
C-4
6)
Plug in the lead from the new battery.
7) Press the reset switch
on
the left side
of
the PX-8 while switching the main
power switch on. Then release the reset switch. This should be done
on
replac-
ing the battery and
not
left until it
is
necessary
to
use the PX-8.
8)
The supplied battery will only be partially charged and may become com-
pletely discharged
if
it
is
not charged immediately after replacement. There-
fore, charge the battery following the procedure in section C-1, even though
the
"CHARGE
BATTERY"
message may
not
be displayed.
C-5
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