Sharp OZ-5500 - Manual (Page 202)

200
If nothing happens when you press ON :
•
Setting the battery replacement switch to REPLACE
BATTERIES shuts off power to the unit. Check that the
battery replacement switch is set to NORMAL
OPERATION.
•
Repeat the above battery replacement procedure step
by step.
Replacing the memory backup battery
The Organizer’s memory backup battery has an expected
life of approximately five years under normal conditions
(temperature extremes can shorten the life of the battery).
Replace the memory backup battery every five years or
whenever the following display appears.
#Display E-5
WARNING:
When the operating batteries are depleted, replace them
promptly with new batteries. If depleted batteries are not
replaced, the memory backup battery will be drained more
quickly than normal. This in turn could cause you to lose all
your data when the operating batteries are replaced.
Memory backup battery life:
✱ Approx. 4 months (when the operating batteries are
depleted)
✱ Approx. 5 years (when the depleted operating batteries
are promptly replaced)
☞
Do not try to replace the memory backup battery if the
operating batteries are weak. Doing so may result in
the loss of all data in the unit. If necessary, replace
the operating batteries before replacing the memory
backup battery.
1. Turn off the Organizer.
2. Set the battery replacement switch on the back of the
unit to REPLACE BATTERIES (a red dot will be
visible).
3. Remove the screw holding the memory backup
battery cover in place.