Greetings to all.      I have attached three pictures to show the instillation of the new boards. One of my Z3801A's has had an intermittent for some time.  I thought it was the very common oven problem.  Apparently not, as it has not faulted with the new receiver board.  Will see what happens in a week or so. 73 de Lon, K5JV 281-795-1335