197
Appendix
(Should a battery leak, clean out the battery compartment of the unit immedi-
ately, taking care to avoid letting the battery fluid come into direct contact with
your skin.)
Keep batteries out of the reach of small children. If swallowed, consult with a
physician immediately.
u
u
u
u
u
To replace the main power supply batteries
* Never remove the main power supply and the memory back up batteries from
the unit at the same time.
* Be sure to switch the unit off before replacing batteries. Replacing batteries
with power on will cause data in memory to be deleted.
* Never replace the back cover or switch the calculator on while the main power
supply batteries are removed from the calculator or not loaded correctly. Doing
so can cause memory data to be deleted and malfunction of the calculator. If
mishandling of batteries causes such problems, correctly load batteries and
then perform the RESET operation to resume normal operation.
* Be sure to replace all two batteries with new ones.
1. Press
!O
to turn the calculator off.
2. Making sure that you do not accidently press the
o
key, attach the case to the
calculator and then turn the calculator over.
3. Remove the back cover from the unit by pull-
ing with your finger at the point marked
✩
.
4. Remove the two old batteries.
5. Load a new set of two batteries, making sure
that their positive (+) and negative (–) ends
are facing in the proper directions.
6. Replace the back cover and press
o
to turn
power on. The memory back-up battery pro-
vides power to the memory while the main
batteries are removed, so memory data is not
lost.
Summary of Contents for fx-7400G PLUS
Page 7: ... fx 7400G PLUS ...
Page 14: ...xii Contents ...
Page 57: ...Differential Calculations Chapter 3 ...
Page 176: ...162 Chapter 8 Programming ...
Page 188: ...Chapter 9 Data Communications 174 ...
Page 199: ...185 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 200: ...186 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 201: ...187 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 202: ...188 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 205: ...191 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...