I. Before Using
1-1 Power Switch and Display ON,OFF and
Power Switch: When the power switch is
turned off, all of the data in the calculator is
turn the display on or
OFF key: Turns the display off.
When the display is turned off with this key,
the contents of the independent memory,
the storage memories, and the entered pro-
grams are retained.
Display ON/Clear Key: Clears the contents
of the register except for the independent
the storage memories, and pro-
gram memory, and resets the error lock
Turns the display on (Display ON).
Auto Power Off Function;
When the calculator is not used for about 7 minutes,
the display is automatically turned off to save power.
key to turn the display on again
Clear All Key: Clears the contents of the
register and the storage memory and resets
the error lock.
In the LRN1 or LRN2 mode, the program en-
tered is cleared by depressing this key.