F117 fatal error

[najrao]

Perhaps I should not have directly resuscitated my old problem after 4 years. Nobody scrolled down to read my last message.
I do not know how to reference back to this topic.

I repeat just my last:
Refers back to Sep 2017, pls forgive me.
My F117 remains bricked, I fished it out to see again.
New findings:
1. Input terminal shows 18 to 20M* in all V positions, not 10 or 11. Auto-V Lo-Z shows 3.2K. Protection elements test OK.
2. Ohms, Continuity, and Diode modes show zero V at input terminal. Any of my other DMM's show a source voltage, e.g., F112 puts out 2.5V for the diode position, and 650mV for Ohms  (ranging megohms).
There is but one dc reg ic on the board (TPS77050), and it puts out 5V. I do not know how the resistance modes work, nor how the 3.15V for the MSP is derived.
Surely, my wise friends should make something of this!

*>80M , i.e., OL when checking later; not consistent