Most of us will use the calculator on our phones as adults but children and students sitting exams still need a dedicated calculator, mine were sitting unused in a drawer. When I saw a social media post from a friend asking about a recommendation for a calculator for their children, I offered to pass mine on to the next generation.
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_111942-768x1024.jpg)
To bring them back to a serviceable state:
- Remove the old batteries, testing them on a power supply before fitting new batteries. In the case of the AA batteries, rechargeable batteries were used.
- They were cleaned with isopropyl alcohol to remove dirt and name markings. Dismantling them made this easier.
- The front panel that covered the screen which was coming loose where the glue had dried out was removed, old glue scrapped out and glued back in place
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_112455-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_112735-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_112820-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_112859-1024x699.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_113002-913x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_113904-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_114555-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_114905-1007x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240316_115111-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240317_121552-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240317_122718-768x1024.jpg)
![](https://repaircafegosport.co.uk/wp-content/uploads/2024/03/IMG_20240318_203014-768x1024.jpg)
Once they were reassembled they were tested to check they worked as expected.