You do not have to always replace the switch.
You may instead clean it. Just did that.
Alas I didn' t take any picture, (I'm not accustomed to tablets and thought would take too much time).
Switch's surface that faces mains cable is a lid held by four built-in pins that go in its corners; they end in hooks that latch in the body of switch. When you take out the lid you have ample access to the switch itself. It is actually a potentiometer. Mine was covered by dust and grease, after cleaning with Xerox film remover it functioned again, (if I had had it, I would have just used alcohol)
To remove lid I just used a small not too sharp knife to pry between the lid and the body of switch, going slowly and lifting each corner just a little rrpeating that in order severa times.
Однажды Они, Вы смогут просмотреть график вашего рейтинга, накопленного за всё время.
Репутация еще не заработана.