minn kota speed control

i broke the speed control switch on my 70# minn kota last weekend, just wondering how hard they are to replace. i haven't even taken it apart yet just wondering if i need to take it to a shop or easy enough to do myself. it still works on 2 just can't change speeds.

They have some motor diagrams here that might help you. http://www.trollingmotorparts.com/

thanks ibnfshn, that's just what i needed.