[ICOM] Re: IC 756 Pro III fuse over-heating?

[Jim Reisert AD1C]

I got my reading glasses and looked at the fuse (that blew) again.  It
clearly says "FUJI 20A" on both ends.  So it's certainly inadequate
for the job

What's interesting is that the ICOM power harness I'm using probably
came from my original IC-756 (with the black/white screen). I wonder
if it had lower current requirements.  I can't believe I've been
running "on the edge" for so long without problems (until recently).

I checked the IC-756 Pro III power harness and it indeed is loaded
with 30A fuses.  However, the spare fuse I found in the box, which I
used this past weekend, was only rated at 20A.  Strange...

Anyway, I now know what to do....

73 - Jim AD1C

On Mon, Dec 15, 2008 at 3:37 PM, Jim Reisert AD1C
<jjreisert at alum.mit.edu> wrote:

> I've had problems the last couple of weeks with my IC756 Pro III
> shutting down in the middle of transmitting.  This weekend I traced it
> to the fuses (which were getting warm to the touch).  I  notice that
> my SS-30 power supply reports ~ 20 amps being drawn on transmit, and
> the fuses are rated at 20 amps.
>
> **  Is 20 amp draw during full-power transmit normal?
>
> **  Are the fuses supposed to be 20A?
>
> **  Should I replace with 25A fuses, or 20A slow-blow, or is there a
> bigger problem here?
>
> Thanks & 73 - Jim AD1C

-- 
Jim Reisert AD1C/Ø, <jjreisert at alum.mit.edu>, http://www.ad1c.us
"Let Not Mankind Bogart Love" - Willie Nelson