this is instructable will show you how to repair a non-working tv remote key.
in this case the vol+ button to this tv remote does not work no matter how hard i press on it.
there are a few reasons why a key may not work:
1- the copper track to a key may have corroded for one reason or another. to repair this would require a little soldering. i will not cover this part though.
2- gunk accumulated under the key/s.
3- when the key is pressed, there is not good contact between the key and the circuit board.
Step 1: clean gunk
open the remote control and clean gunk from under the keys and on the circuit board. the way i do it is by using water and soap. yes! that's how i have always done this with tv remotes. some say to be careful and use proper cleaning solution but i just put a dab of dish washing soap on the circuit board, rub it around with my fingers, and put the board under a running faucet to remove soap. i believe the board has a thin coat of what it looks to be acrylic not allowing the water to touch the components... still i grab the circuit board with my hand like if i'm going to open a packet of ketchup and shake the water off. i also, smack the circuit board on a towel. i guess you can blow on it to get the water from all the nooks and crannies and wype with a towel. but i just shake, smack against a towel and wipe. then put back the remote together and it should work if it does not lets take the next step...