k Before assuming malfunction of the calculator...

Perform the following steps whenever an error occurs during a calculation or when calculation results are not what you expected. If one step does not correct the problem, move on to the next step. Note that you should make separate copies of important data before performing these steps.

1Check the calculation expression to make sure it does not include any errors.

2Make sure that you are using the correct mode for the type of calculation you are trying to perform.

3Perform the following steps.

(1)Press Nc3(SYSTEM) to enter the SYSTEM Mode.

(2)Press 2(Reset Setup).

(3)On the confirmation screen that appears, press E(Yes).

(4)Press J.

(5)Press N to display the calculation mode menu, and select the appropriate calculation mode for the type of calculation you want to perform.

(6)Perform the calculation again.

4 Press the P button on the back of the calculator with a thin, pointed object to initialize the calculator. If you perform this procedure correctly, the calculator will return to the state it was in the last time you turned it off.

P

P button

5If step 4 does not restore normal operation, initialize all modes and settings by pressing Nc3(SYSTEM)3(Reset All)E(Yes).

• For details, see “To reset the calculator to initial defaults” (page 1).

Important!

Calculation history data, memory data, statistical calculation sample data, program data, and all other input data is deleted.

k Lower Battery Indicator

The message shown below appears when battery power goes low. When this happens, stop using the calculator, turn it off, and replace its battery.

Important!

The calculator’s data transfer function is disabled while the Low Battery message is on the display.

E-135