What Are the Methods of Repairing Membrane Switches?

1. First disassemble the membrane switch

Open the upper layer of key film, and use a multimeter to find out the connection position of each key switch point and the circuit board, so as to ensure that the modified switch connection point corresponds to the original one.

2. Use a positioning cone to tap the hole in the metal plate at each switch point of the lower film

The size of the perforation is slightly larger than the actual size of the quilt column of the emblem switch to ensure that the emblem switch can move up and down in the hole without being hindered by the key column. If the hole is too small, it will affect the elasticity of the switch and cause the switch to fail.

3. Fix the emblem switch on the printing plate according to the spacing of each small hole of the golden moon plate

Connect the cables according to the corresponding connection points of each standard membrane switch. At the same time, according to the actual space position 2 between the metal plate and the display plate, a corresponding edge of the printing plate is reserved to fix the switch plate. Because the new switch board is between the metal plate and the indicator light display board, a hole corresponding to the indicator light position 2 of the display board must also be punched on the printed board to ensure that the light-emitting tube of the display board can see the display signal from the panel through the printed board, and there must be a certain distance between the circuit and the two boards to prevent short circuit.

4. Embed the fabricated plate into the hole corresponding to each button switch and the metal plate

Make the top of the press column parallel to the metal plate surface. If it exceeds the plate surface too high, the outer panel film will press the switch and cannot be used after recovery. If it is too low, the switch will not work when it is pressed by hand. After inlaying the broken switch board, use a rubber pad to flatten it for reuse, stick the left glue on the metal board, then restore the outer protective film of the panel to its original state, and end the entire modified switch board. The operation feels very good, and there is a kind of clear shrapnel sound, which gives people a very intuitive feeling of switching on and off. It has long service life, high reliability and easy maintenance. If a standard membrane switch is damaged during use, it can be directly judged by the sound of shrapnel when pressing the button, and it can be replaced.

All NICEONE ELECTRONICS's standard membrane switch, silicone and plastic samples require drawings. After understanding your needs, we will convert the most professional opinions into feasible designs, and draw blueprints and 3D files to realize your ideas one by one. If you are interested in membrane switch products, you can consult online!