The Casio fx-3000 is a scientific calculator with 10 digits precision and algebraic logic. It has 38 keys, and one of the early LCD (liquid crystal) displays which incorporated a yellow filter. The power source is 3x mercury cell.
Facts at a glance:
|Power Source||3x mercury cell|
If you have a Casio fx-3000 that is no longer working, you can first try replacing the 3x mercury cell batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement: