The HP 48G is a graphing calculator designed for scientists, students and engineers. The 48G contains more than 180 built-in graphing equations to help with most common mathematical functions. The graphing menu allows to display up to sixteen graphs simultaneously. If you need to open up the calculator for maintenance or repair, you can do so using a jeweler's or Phillips screwdriver.
Instructions
1. Remove the battery compartment cover on the back of the 48G. Flip the calculator with the buttons faced down. Pull off the battery compartment cover with the small latch at the cover's top. Pull out each of the batteries inside the compartment. Flip the calculator face-up again.
2. Insert a screwdriver into the side of the 48G. A small gap exists between the keypad cover plate and the calculator body. Wedge the screwdriver into this gap and slowly pry open the cover plate.
3. Unscrew the back cover of the HP 48G. Place the calculator on a flat surface with the keypad facing down. Remove the small screws holding the back cover with your screwdriver. Slowly pull the back cover off the calculator to prevent electrical damage. You can now access all internal parts of the 48G.
Tags: back cover, battery compartment, battery compartment cover, compartment cover, cover plate
