Well folks, I finally got REAL sick of my malfunctioning buttons on my Pulse Monitor for my Quadzilla Adrenaline. The contact pads always seems to loose connectivity and every time I cleaned them they would last about a day. I was going to buy new buttons but decide to change the switch type completely instead. Changed to a tactile switch instead (used on most TV and Electronics controls boards i.e. volume up and down). Was a fairly simple job, with the only scary part being the modification of the plastic frame with a dremel.
Here are a few pics.
Front shot of Before.
Removed four screws from rear cover.
Rear Cover removed. Try to keep the sticker with the rear cover so it doesn't get in the way later.
Removed two screws from control board and pulled control board from unit.
Shot of the back side of the board.
Three of four buttons installed. Used double sided adhesive between the tactile switch and the board, also had to manipulate the button legs to fit, and cut off the two extra legs kitty-corner from one another.
Rear shot of buttons soldered in place.
sockets ground down from the rear with a dremel tool. This part take some work. I ground a little at a time. You have to take off about 1/8th of an inch.
Buttons seated back in the faceplate.
Finished product! Cut the buttons with a real sharp dikes.
Cut the buttons off level.
Here are the switched I used in replacement of the contact pad type used in the monitor.
Now it works great, you push the button once and it does what its supposed to. Should have done this a long time ago. Thought I'd share the idea if other are having troubles.