1. Press  1A(OFF) to turn

Screw

Screw

off the calculator.

2. On the back of the calculator,

remove the screws and the

back cover.

3. Remove the old battery.

4. Load a new battery into the

calculator with its positive 

k

and negative 

l

 ends facing

correctly.

5. Replace the back cover and

secure it in place with its

screws.

6. Perform the following key operation:

(1) O19(CLR)

(2)  All:EXE  (fc), then E

(3) E(Yes)

(4) A

  Make sure you perform the above key operation. Do

not skip it.

Auto Power Off

Your calculator will turn off automatically if you do not

perform any operation for about six minutes. If this

happens, press the O key to turn the calculator back on.

E 145