The Casio PB-400 is a programmable calculator with 12 digits precision and formula input logic. It has 53 keys, and an LCD (liquid crystal) display. The power source is 2xCR2032 3V. The calculator was manufactured in Japan.
Facts at a glance:
|Power Source||2xCR2032 3V|
If you have a Casio PB-400 that is no longer working, you can first try replacing the 2xCR2032 3V 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: