News:
December 07, 2021, 10:09:22 AM

Author Topic: fuse blowing  (Read 698 times)

0 Members and 1 Guest are viewing this topic.

Offline joepiecuch

  • Jr. Member
  • **
  • Posts: 49
fuse blowing
« on: March 22, 2021, 04:17:12 PM »
a kaiju, in daily use uneventfully for well over a year, suddenly blew the fuse at startup this evening; it did it again without the 300bs in place. before i yard it in to the workroom, i wonder if anyone has some idea what is the most likely culprit in play here?

Online Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 15851
Re: fuse blowing
« Reply #1 on: March 22, 2021, 05:04:46 PM »
Debris is a strong possibility. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline joepiecuch

  • Jr. Member
  • **
  • Posts: 49
Re: fuse blowing
« Reply #2 on: March 22, 2021, 05:57:17 PM »
dust accumulation can't cause a short, or can it? hard to imagine what else could get into the vents...it's on a rack with a shelf above it.

Online Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 15851
Re: fuse blowing
« Reply #3 on: March 22, 2021, 07:34:41 PM »
Sometimes old clipped off leads can be hard to spot and can move around unexpectedly well after completing a project. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline joepiecuch

  • Jr. Member
  • **
  • Posts: 49
Re: fuse blowing
« Reply #4 on: March 23, 2021, 04:10:51 AM »
it must have been something of that sort. i could see nothing obvious, so stood it on its side and gave it a few vigorous knocks, then blew a bunch of compressed air across everything, paying particular attention to both sides of the circuit boards. it works fine now, which is of course pleasing, but a little frustrating...saw nothing fall out, so is the offending whatever-it-was thing still lurking and biding time, waiting for another opportunity? in any case, thank you very much, as always.

Online Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 15851
Re: fuse blowing
« Reply #5 on: March 23, 2021, 05:20:55 AM »
Sometimes the debris self immolates when it causes the short. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man