Changing The Keyboard - Sharp EL-9900 Operation Manual

Changing the Keyboard

This calculator is designed with a reversible keyboard, which by utilizing it will not only
change the appearance, but will also change the internal functions and configurations
of the calculator as well.
To change the
keyboard:
Note:
1. Press @ o to turn off the calculator's power.
2. Open the battery
compartment cover.
Hold the calculator as
illustrated.
3. Slide the keyboard eject
tab (KEYBOARD
EJECT) down.
The keyboard will be
ejected.
Be careful not to drop
the keyboard on the floor, as this may damage it.
4. Turn the keyboard
over, and replace in
the calculator as
illustrated. Secure by
gently pressing the
keyboard until you
hear the notch click.
Clean the edges and contact points of the keyboard and the
keyboard tap before reattaching the keyboard to the main unit.
DO NOT touch the pad portion in the keyboard tap.
5. Replace the battery compartment cover.
6. Press O.
7. Make sure that the message
shown on the right appears.
8. Press O.
Chapter 1: Getting Started
9