How to disassemble a customized PCB membrane keypads

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If the customized PCB membrane keypads is particularly dirty or the keys are not sensitive, it is necessary to disassemble all the keyboards. The customized PCB membrane keypads has a simple structure, so it is easier to disassemble. You only need to unscrew all the screws at the back and blow off the outside. Dust Take out the film inside, protect several circuit connection wires and indicator lights, and then wipe it gently with alcohol.
A transparent elastic rubber pad can be seen under the film. After removing the rubber pads, the keys can be removed. You can choose a key puller. It is best not to use your hands or a screwdriver, and do not use too much force, especially the carriage return and Large buttons such as space will have a balance bar in it, and if you force it hard, the balance bar will be pulled out.

customized PCB membrane keypads
After the keys of the customized PCB membrane keypads are removed, they can be cleaned with water. Remember not to use alcohol to wipe the key characters. Alcohol is a solvent, so it is easy to dissolve the characters. After cleaning the keys and keyboard, put them in a cool and ventilated place to drain. After draining, you can install everything back. So far, we have done a thorough cleaning of the customized PCB membrane keypads. When you use the keyboard again, you will feel like a new keyboard, and you will have a great sense of achievement. . It not only saves us buying a keyboard again, but also makes the keyboard maintenance longer.

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