Epson PX-8 User Manual page 138

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