Oh you bring me back here. desolder/solder carefully - i've done
   it only a few times. Easy to burn out motherboard. I never had a
   steady hand with a soldering gun. Should be numbered +
   replaceable. You can check out the FCC # if there is one on it,
   and find the diagram for the motherboard on the FCC website, if
   it ever was sent through the USA. I don't know if all boards
   have to get it or not.