[Elecraft] KI battery monitoring fault

[david howie]

While doing a mod through shear carelessness I put a short on the front 
panel board .When I returned power to the K1 it functioned perfectly 
except that it will not now read the battery voltage (reads 0 volts).
I have checked the potential devider R6 /R7 and 6 volts is supplied to 
pin3 (RA1) of the MCU which is correct.This MCU input acts as a A to D 
converter to read battery volts and also acts as an output to switch the 
RIT  on and off. The RIT is still switching ok.
As I can find nothing wrong am I right in concluding that the MCU has 
been damaged in someway.
Any help will be gratefully appreciated.

Regards

Dave