I am trying to troubleshoot the receiver (transmitter works perfect) on a new to me X108. The radio is very low S/N, 0069 and the board layout is different from what is published. The ADE-1 is not near the speaker, it is on the edge of the board. See picture. I suspect the problem is near the mixer IC but hard to troubleshoot with out a good board layout. Anyone have an early board layout?