Casio CTK-3200 Main Board Replacement

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If your Casio keyboard (model 3200) is having problems with a faulty or broken LCD screen, this is the second guide in fixing or replacing any LCD-related issues.

Before using this guide, make sure to disconnect any external parts, tools, or modifiers from the keyboard's ports in order to make the removal process simpler. Only use the recommended tool for this project, any misuse of tools could result in injury. For more information on how to maintain project safety, see iFixit's Project Safety Page.

Before beginning, make sure to power off your keyboard completely, remove the batteries, and disconnect it from the external power cord.

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Remove the seven 10 mm Phillips #1 screws on the underside of the keyboard that secure the center front panel.

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Flip the keyboard over and remove the central panel on the front and place it above the keyboard.
Make sure not to sever or strain any connections between the yellow-colored main board and the central panel.
If the panel is not easily removable, make sure all the screws are removed from the back.

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Make sure you are not putting too much strain on the wires that connect the yellow board to the rest of the piano.

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Remove the three 12 mm Phillips #2 screws from the green PCB.
This step will require you to move some of the motherboard's wiring. Make sure not to separate any of the connection points.

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Remove all twenty-three of the 10 mm Phillips #1 screws from the yellow circuit board.

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The board is now able to be removed from the center front panel. Carefully remove the board, making certain not to break the board or any of the components attached to it.
Make sure the center front panel is facing down for this step, as the keys will come loose from the front of the panel.

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To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.