Casio CTK-3200 Screen Not Turning On

Make sure that the keyboard has batteries that are correctly installed and have a good charge. Sometimes a weak or faulty power source can cause display issues.

If you’re using an AC adapter, it has to be the correct one, meant for the Casio CTK-3200. If you’re using the wrong one, you may experience power issues. Also make sure the adapter isn’t damaged and if it is you may need to buy a new one.

Look at the screen and the keyboard for signs of damage that may include a cracks. These may cause the display to not display correctly. To do this you may need to open up the keyboard and check the connections inside. Here is a link to a guide on replacing the Casio CTK-3200 LCD screen. If screen is damaged you will need a new one.

Make sure that the keyboard isn’t being used in extreme environments. Extreme high or low temperatures or high humidity may cause electrical parts to not work which might require replacement or professional repair.