I needed to replace the board in my 2990. Found a good working 2950 board (CPU was junk). Everything works as should after figuring out the jumpers and such. However, what is needed to be done to convert this down to one final transistor? I was looking at the old board and trying to figure out the rf section. The radio will TX, VCO is outputting, however no carrier. There is no TX voltage on the finals, however RX voltage is there (AM and SSB). Thanks for the help!