Hello
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I'm new to amateur radio and this is my first radio build.
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I have assembled the main board and the 40m LPF, but all 5 LEDs remain lit with the LPF board installed.
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What have I tried?
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At first I thought it might be the microcontroller board;
?? a) so I tried the 3v3 and 5v tests at R1 and U2(Vin) respectively, all good.
?? b) I reflashed the microcontroller with the hex file (it flashed fine but didn't fix the issue)
?? c) I bought a new arduino nano, flashed that - still all LEDs are on.
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I don't have a spectrum analyser, only a DSO, a multimeter that measures Hz and an ATU-100. Connecting the ADX-S V2 to the ATU and a dummy load, I see no power measured by the ATU.
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Holding down SW1 and SW2 does not make the TX LED flash.
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Two LEDs are lit on the Nano (pwr and L)
Ther BFO LED is not lit.
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Advice on where to probe, what to look for would be most appreciated. I have a DSO and multimeter.
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73
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Rich VK2 LTC
