[Elecraft] K3 - stuck at MCU LD we upgrading software

[Tom]

Thanks Ron.


73,
Tom - KQ5S

On Sun, Jan 29, 2017 at 8:48 PM, Ron D'Eau Claire <ron at cobi.biz> wrote:

> Yes. There is an automatic resetting fuse in the main circuits and a
> circuit
> breaker for the amp that is reset with a button on the back of the K3S.
>
> 73, Ron AC7AC
>
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Tom
> Sent: Sunday, January 29, 2017 2:31 PM
> To: Ron D'Eau Claire
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 - stuck at MCU LD we upgrading software
>
> Thanks Ron.  Not sure if my old Astron 35A has built in over-current
> protection or not.  I know it has the crowbar protection for over voltage.
>
> Does the K3S have any kind of internal protection like a resettable fuse?
>
>
>
> 73,
> Tom - KQ5S
>
> On Sun, Jan 29, 2017 at 4:15 PM, Ron D'Eau Claire <ron at cobi.biz> wrote:
>
> > That depends upon the power supply. My Astron has over-current
> > protection that shuts it off in the event of a short. The output stays
> > off until I cycle the power switch on the Astron, so I don't use any
> > additional protection.
> >
> > 73, Ron AC7AC
> > -----Original Message-----
> > From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
> > Tom
> > Sent: Sunday, January 29, 2017 1:58 PM
> > To: elecraft at mailman.qth.net
> > Subject: Re: [Elecraft] K3 - stuck at MCU LD we upgrading software
> >
> > Are folks hooking their radios directly to the power supply without a
> > fuse inline?  I noted that the Elecraft supplied cable for my K3S did
> > not include a fuse.
> >
> >
> > 73,
> > Tom - KQ5S
> >
> >
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