Hey Wise AK, I have purchased a replacement part for a broken SELCTOR knob (shaft/spindle arm, don't know how to call that) on a SX727, took a hit and cracked just at the base of the front facia. Part comes with wiring so color codes is not a issue, but still is a very tricky mission replace it, lot of soldering since is the core of all signals. I was wondering, can I approach this replacing just the center spindle/shaft thing (please suggest a name) so to avoid a day of headache? I have noticed there is a tiny bolt on the back, does it come out if I undo that bolt? Has anyone tried to do that folks?