The use and common damage of the light touch switch of the household
Release time：2018-07-14 Clicks： Click
What are the uses of household Tactile Switches, where they are used and where they are often easy to fail?
Light touch switches are widely used in household appliances. TV programs, such as add and drop keys, menu keys and volume keys, are all light touch switches. Most of those functional keys on soya bean milk machine and induction cooker are also light touch switches. Later, a small number of inductive touch switches are used. In addition, the old people play MP3 music box, singing machines and other electrical appliances on the touch switch is also a lot of, and often malfunction.
Most of the non professional maintenance personnel are hard to understand what the touch switch is like because the touch switch is wrapped by the key film.
The failure rate of touch switches is also very high. The most common problem is the failure of keys, or another function performed by this function. For a little useless button, we will replace it directly. For the key function disorder, we can clean the key circuit (key scan circuit) first, because the functional disorder is the leakage of the key circuit, and we can eliminate the slight leakage fault with the alcohol cleaning. We may also encounter no operation on the TV, and the TV screen has its own change, the search, the volume change, or the condition of a menu or a change in the volume, all of which are caused by a slight leakage of electricity. Some of the circuit cleaning, the effect is not very good, I am directly changed.
The touchdown switch is not easy to work harder, and it will form oxide on the contact surface of the touch switch to avoid contact failure or failure.