Why my Casio Calculator has no power?
- CCharles MedinaJul 29, 2025
If your Casio Calculator has no power, it could be due to several reasons:* **Battery shortage:** Replace the batteries.* **Poor contact of battery terminals:** Replace or polish the battery terminals.* **Defective TAB-LSI:** Replace the TAB-LSI.* **Poor contact SW1:** Replace SW1.* **Poor soldering of power supply circuit:** Resolder the power supply circuit.* **Defective PCB unit:** Replace the PCB unit.












