[Elecraft] Control board voltages

[Earl Ritchie]

I have made up the control board for my K2 and all looks good.  The resistance checks were all within specs except the U5 OUT to gnd which was about 3600 ohms.  Checking further I find the 8R and 8T voltages seem OK but some 5 volt areas are not.  For instance the 0 volts and 5 volts on U7 pins 5&6 are reversed as well as U6 pins 24&25,  U8 pins 10 & 11.  Someone probably has the answer right at their finger tips but I cant see what the problem is.
Earl, VE3FBK