[Elecraft] KAT2 question abt voltage at U4, pin7

[KC9GBX at aol.com]

After a recent calamity while attempting PSK31, where I introduced 13.5v  
into microphone jack pin 6 (a 5v line), repairs have been made, and I have made  
contacts in both cw and ssb modes.
 
However, I seem to be getting more HI CURRENT warnings on bands and at  power 
levels where previously, I did not.
 
I re-initialized the KAT2, and, as I cycle through L0-L8 and C0-C8, all  
relays provide a nice click.
 
I performed the dc voltage checks at the bottom of KAT2 manual, page  22.  
Everything was fine, except for U4, pin 7 where I got a reading of  4.74v 
instead of the 0v or nearly 0v that the manual implies I should see.   Could this be 
the cause of the HI CURRENT warnings?
 
Thanks for your  consideration.                                               
     73,  Jef Fox kc9gbx
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