[sdiy] The Next Newbie Power Supply question...

[Rhen, Kris]

I've got a +-12v, +5v regulated power supply which is acting odd (or more
likely I just don't understand what's up with it).  Wired it up to take AC
through a standard plug, one of the non-ground leads goes through a fuse (in
this case a 1A fast-blow fuse, even though the supply goes to 1.5A I'll
never draw that much from it).  The other end of the fuse, as well as the
other non-ground lead from the input goes to the supply.  I take the ground
and connect it to the case as well as the GROUND output lead (of which it
has two)  Power it up as-is and its great, I get my +12v, -12v and +5v
relative to the ground just fine.

Now I run some wires from the GND, +5, +12 and -12 to a power dist board and
power it up with a switch on a power strip its plugged into.  Fuse blows
with a nice flashy lightshow.  I've gone through a couple of fuses like this
(note NO LOAD (Doepfer/As/AS modules) yet - and I won't until I understand
why they're blowing).  Note its outputs are

-12v   GND   +12v   +5v   +S   -S   GND

and I don't have the sensing hooked to anything.  

Can anyone tell me (without shouting :-) why the fuse is blowing?  Again,
gotta learn somehow and you all have been great teachers.  Thanks again
KRIS


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