How should the FPC membrane key switch membrane key panel be repaired?

   1. Technically speaking, it is very simple to replace the membrane of the keyboard. You only need to use a screwdriver to remove all the screws on the back of the keyboard, and then open the back cover. You can see that the membrane is stuck on the back cover by the pile head. Remove the screw connecting the circuit board, and the membrane can be removed for replacement.

2. Most membrane keyboards are medium and low-grade products, and the price is only a few dozen yuan. After being damaged, they are replaced by the manufacturer. The round-trip shipping cost plus labor and material costs are often higher than buying a new keyboard, thus losing the maintenance value.

The price comes from the Internet, for reference only, I hope I can help you.

What are the requirements of membrane switches for buttons?

Chuangming membrane switch manufacturers analyze from two aspects: 1. For the structure of the membrane switch, the button is a very important part of it. Because the realization of the function of the membrane switch is to rebound by pressing the button, it can also be said that the function of the button is realized by the rebound of the shrapnel, so the membrane switch has requirements for the button. 2. The center point of the installed metal shrapnel must be aligned with the center point of the conductive circuit, and it must be fixed well, otherwise there will be poor contact and no conduction. However, the letters on the key display area on the panel layer are generally abbreviated in order to save space, and the size of the letters is generally no more than twice the size of the metal dome. If it is too large, the balance will be lost, and the precise position of the metal shrapnel will not be found during the operation.

Analyze the standard parameter information of membrane switch

Introduction of key film

Button film, also known as metal dome conductive film.

Metal dome conductive film (Metadomearray), it is a piece of PET sheet containing metal dome (dome), used as a switch on circuit boards such as PCB or FPC, and plays an important tactile type between the user and the instrument. function of the switch. Compared with the traditional silicone keys, the conductive film has a better feel and longer life, and can also indirectly improve the production efficiency of various types of switches using the conductive film.