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Following on from my email and see that VF and VR go to the MCU



De Spence M0STO

Sent while portable! please excuse typos.

Hi This is a standard circuit, once you have replace all the burnt track and
components, now set the power to 10 Watts, and transmit via an SWR meter
into TH FC-20 then into a dummy load on 14.125 MHz, it should auto tune,
as it is an easy to match to a dummy load. Check the SWR meter is zero this
shows it is tuned correctly, then adjust the Cap TC1001 for minimum on
TP1020, TP1008 is the forward power, and is also used by the tuning
circuits. Increase the power to 20 Watts check the SWR is still very low,
recheck TP1008 and check the voltage has gone up by 6dB. (Voltage 20log
(V20Watts/V10Watts). Finally try 100 Watts and you may need to tweak TC1001
for a null.

73

Andrew G8UUG