sell it with detailed failure description, you will easily recover half its value
will do that if I can't repair it at all.
I'd be happy to invest like up to 50-100 EUR in new parts so if there are any obvious ones which could be the culprit I'd replace them one by one until the Metcal works normally again.
I was hoping that you much smarter than me people out there maybe could have a clue which parts might be causing this.
Somewhere I read, I think, that there is a feedback loop going to the DC-DC converter IC on the motherboard which then controls the voltage.
I know that Metcals don't have any temperature sensors and that they regulate their tips by themselves with some RF voodoo (curie effect).
The caps look fine, at least they are not bulged. If I don't get any other advice, the next thing to swap out would be the DC-DC converter IC, i guess? I also read somewhere that this thing gets rather hot and I once forgot to turn off the iron over night so maybe it is fried...
Thanks for any idea!