16 Apr
2012
16 Apr
'12
5:37 a.m.
On Apr 16, 2012, at 7:57 AM, Holm Tiffe wrote:
For sure the towel doesn't help in this case
but....
http://www.robotrontechnik.de/html/forum/thwb/showtopic.php?thread[threadid…
Ouch. Yeah, that looks like the wirewound resistor (at least) got
WAY too hot. You can see the FR-4 fibers poking through, which
means the board temperature was probably way above design (assuming
a reasonable thermal design). Still, I'd be surprised if it were
fatal damage, especially since it's probably a 2-layer board with
no plated through holes. I imagine it's not too structurally sound
anymore, though (I guess that's why you put in the perf? My German
isn't so good, though I think I can guess what "brutalen Aktion"
means).
- Dave