fx-7000GA Back Cover and Reset Switch

On the back cover of the Casio fx-7000GA there is a label stating that the calculator takes three CR2032 batteries. The total voltage requirement is 9 V DC, and the power consumption is 0.04-watts. As you can see, it also indicates the manufacturing origin to be Japan.
Reset Switch

The manufacturers have also provided a reset switch to clear all the memory contents.
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Casio fx-7000GA
fx-7000GA Circuit Board
fx-7000GA CR2032 Batteries
fx-7000GA Main Chipset
fx-7000GA Back Cover and Reset Switch