06-10-2021, 01:56 AM
(06-06-2021, 03:30 AM)barray Wrote: When powering you should leave the tip connected I believe - otherwise if it is trying to heat the tip it's got nowhere but the handle to dissipate it.
Unless it works unlike all the other soldering irons in that form factor that should be wrong. The heater is part of the tip, so if it isn't connected there's no current running through it and therefore (almost) no power converted to heat.
(06-06-2021, 03:30 AM)barray Wrote: You should take it out of the housing and figure out where the heat is coming from - I would expect to see a chip getting pretty hot under that plastic cover - should be obvious with your thermal camera.
Yeah that'd be interesting. Considering it still works in DFU mode I expect the main processor is still okay, I suspect a driver/transistor has failed closed (they like to do that, MOSFETs especially). That would explain the heat (and might be easily repaired).
