Hello
The internal contacts in the power button is damaged. There is no other way to repair, rather replace the same with an other with same type and diamensions. You have to take this power button out of the device and go for a new one with the old power switch in hand as sample. Power switches are very easy to get, and won't cost more. It can be available in most of the electronic components sparepart shops in your town. OK.

Hi there ,i would get a new remote control from a KONKA dealer ,they are not too expensive ,just give them your tv model # and your problems will be solved ,thank you for using FIX YA .