Hi I have got to page 42, and I have a problem. Switching on I get the INFO 080 message. Pushing DISPLAY gives me the message 2.04p 255 for a few secs. Then I get a frequency readout. Of course I have checked my soldering several times, and I've changed U1, and even tried a known good Control board. Has anyone seen this problem before. 73, Bryan GM3AKF