I am repairing a TS-430S. The problem I am having is that the transmit output frequency going into the PA board is equal to the VCO output. For some reason, it is not getting mixed with the 48.055 mhz signal. Example: I get 76.060 mhz from the RF board out to the PA board, instead of the 28.000 mhz expected, so somewhere the 48.055 signal is missing and not getting mixed. Has anyone seen this before?