Hello, when cleaning the computer keyboard, first be careful not to connect the keyboard with the host, and then wipe the keyboard keys line by line with a slightly wet soft cloth, and be careful not to let water flow into the keyboard, so that the surface of the keyboard keys can be basically cleaned. If you want to clean the keyboard thoroughly, you can unscrew the screws on the back of the keyboard with a screwdriver, and then scrub the parts under the keyboard keys that are in contact with the keycap with alcohol. Note: if there is a transparent plastic film on the surface, please uncover it before cleaning it. After cleaning, let the keyboard be fully dry, otherwise it will easily cause short circuit.

In addition, I would like to introduce you to the simple maintenance of the keyboard: due to the different frequency of use of each key, sometimes the key force is too large, metal objects fall into the keyboard, and tea splashes into the keyboard, which will cause the elastic sheet of the microswitch inside the keyboard to deform for a long time or be corroded by dust and oil, resulting in poor contact or loss of function of the keys. These minor problems can be solved by yourself. Be sure to turn off the power before starting maintenance.

Injection method: Use a common syringe to extract anhydrous alcohol, inject it at the seam with poor key position, and press the key continuously to enhance the cleaning effect. This method is simple and practical, especially for the keys distributed around the keyboard.

Shaping method: weld the three legs of the faulty key with a tin sucker, remove the key cap, support rod, elastic sheet and return spring, and pull out the microswitch. It can be found that the shrapnel is concave or flat, which is pried up with a fine needle to form a convex surface, and the internal switch is gently moved to the appropriate position with a small screwdriver. Finally, it can be assembled in the reverse order of disassembly.

Immersion method: this method is to disassemble the faulty key, and you can see the moving contact composed of two small metal pieces. Wipe a small piece of alcohol cotton with tweezers on the contact piece repeatedly until the metal shines, and finally reassemble it.