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Common problems with mechanical keyboards include combo failure, key conflict, ghost keys, stuck keys, input confusion, etc.
Combo failure is also called mechanical keyboard jitter or key position repetition. It is manifested as the keyboard abnormally repeats the signal of the key position at a fast speed when a key is pressed, resulting in multiple identical characters appearing on the screen. The main reasons include shaft failure, PCB circuit board problems, insufficient lubrication, and firmware adjustment problems. Solutions include cleaning the keyboard and shaft, wiping the inside and around the shaft with alcohol, and ensuring that the keyboard is completely dry before use.
Key conflict refers to the maximum number of keys that the keyboard can accurately recognize when multiple keys are pressed at the same time. When this number is exceeded, input accuracy will be a problem, which may cause input jamming, keyboard buzzing, or invalid input. Key conflict is due to the working principle of the keyboard matrix limiting the number of keys that can be recognized at the same time.
The ghost key phenomenon is that the keyboard mistakenly detects the pressing of a key when it is not actually pressed. This can also cause input confusion and inaccuracy.
The key-stuck problem may be caused by food residue or aging of the mechanical keyboard. Food residue entering the gap of the keyboard can cause the keys to get stuck, and rust or wear and tear of the spring inside the mechanical keyboard can also cause the keys to get stuck. Solutions include cleaning the debris in the gap of the keyboard, replacing the spring, or adding lubricating oil.
Input confusion is usually caused by a short circuit of the key, which may be caused by a damaged key, liquid entering the keyboard, or a conductive object falling into the keyboard. You can use a multimeter to test the key resistance to diagnose the problem.
