Knowledge

Classified by working principle 1. The mechanical keyboard adopts a metal contact switch, which works by making the contacts conductive or disconnecte

Divided by application According to the application, it can be divided into seven categories: desktop keyboard, laptop keyboard, mobile keyboard, indu

In terms of coding functions, keyboards can be divided into two types: fully coded keyboards and non coded keyboards. A fully encoded keyboard is a ke

Regular type The classification of desktop keyboards can be based on the number of keystrokes, the working principle of the keys, and the appearance o

The shell, some keyboards are fixed to the keyboard panel and base using plastic hidden hooks technology, achieving a metal free screw design, so be c

A keyboard is an instruction and data input device used to operate computer equipment, and also refers to a set of functional keys arranged by the sys

In addition to the above fault phenomena, LCD display backlight faults are also common, mainly manifested as aging and complete damage, that is, not e

In the actual maintenance process, black screens are more common, and black screens can be divided into three types: flashing power lights, long on, o