ALLRIGHT!!!
DMM selector switch removed successfully, TEK switch module replacement due in this weekend.
Took me about two hours. I thought it would take days. I will post some pix later.
However, the reason for this is a new toy, the Yihua 948 desoldering station. The tool is a gun with a heated tip (temp controlled) with a hole in it. There is a continuous suction pump in the base unit actuated by a trigger. Just put the tip over (and around) the switch pin, rock it around a bit to insure melting and pull the trigger. Does a really nice job.
I needed to desolder 40 pins to remove the switch assembly as a unit. I had to re-work about 6. after that the switch assembly just fell out. Board is very clean, no smutch like with solder wick. MUCH better than a Solder-pullit. I wish I had discovered this years ago. I am really impressed.
I expect the rest of the repair to go smoothly. Still want to resolve the Readout ring not recognizing the 11K pin on the 10X probe though...
