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Power supply death & K3 also any idea ?

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Andrea Borgnino IW0HK

Power supply death & K3 also any idea ?

Hi,
today i was in QSO in 17 meter band CW when my power supply (switching from
Nissei model MS 280A) has shut down (i was in tx with 100 watt). After i
discover that the supply is death.. and also my K3 (#4777) now it's death
also..connected to a battery it's not swithing ON... nothing...

any idea ??

thanks in advance and 73 de IW0HK Andrea

Andrea Borgnino IW0HK 7http://www.mediasuk.org/iw0hk
http://www.mediasuk.org/archive
http://www.biciurbana.org
http://iwohk.tumblr.com/
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Rick WA6NHC

Re: Power supply death & K3 also any idea ?

Did you confirm cable and fuses are good?

73,
Rick wa6nhc

Tiny iPhone 5 keypad, typos are inevitable

> On Nov 10, 2013, at 9:17 AM, Andrea Borgnino <[hidden email]> wrote:
>
> Hi,
> today i was in QSO in 17 meter band CW when my power supply (switching from
> Nissei model MS 280A) has shut down (i was in tx with 100 watt). After i
> discover that the supply is death.. and also my K3 (#4777) now it's death
> also..connected to a battery it's not swithing ON... nothing...
>
> any idea ??
>
> thanks in advance and 73 de IW0HK Andrea
>
>
>
> Andrea Borgnino IW0HK 7http://www.mediasuk.org/iw0hk
> http://www.mediasuk.org/archive
> http://www.biciurbana.org
> http://iwohk.tumblr.com/
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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Harlan Sherriff

Re: Power supply death & K3 also any idea ?

In reply to this post by Andrea Borgnino IW0HK

All fuses good?

Sent from my Verizon Wireless 4G LTE DROID

Andrea Borgnino <[hidden email]> wrote:

>Hi,
>today i was in QSO in 17 meter band CW when my power supply (switching from
> Nissei model MS 280A) has shut down (i was in tx with 100 watt). After i
>discover that the supply is death.. and also my K3 (#4777) now it's death
>also..connected to a battery it's not swithing ON... nothing...
>
>any idea ??
>
>thanks in advance and 73 de IW0HK Andrea
>
>
>
>Andrea Borgnino IW0HK 7http://www.mediasuk.org/iw0hk
>http://www.mediasuk.org/archive
>http://www.biciurbana.org
>http://iwohk.tumblr.com/
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:[hidden email]
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html

Andrea Borgnino IW0HK

Re: Power supply death & K3 also any idea ?

In reply to this post by Rick WA6NHC

yes cable it's good, there was no fuse on cable from K3 to the supply.

I just check the K3 with a battery and it's seem that the K3 it's in short
circuit.. the battery voltage go to 12v to 0.5v when connected to the K3..

can be the fuse inside the K3 ??

On Sun, Nov 10, 2013 at 7:19 PM, Rick Bates <[hidden email]>wrote:

> Did you confirm cable and fuses are good?
>
> 73,
> Rick wa6nhc
>
> Tiny iPhone 5 keypad, typos are inevitable
>
> > On Nov 10, 2013, at 9:17 AM, Andrea Borgnino <[hidden email]>
> wrote:
> >
> > Hi,
> > today i was in QSO in 17 meter band CW when my power supply (switching
> from
> > Nissei model MS 280A) has shut down (i was in tx with 100 watt). After i
> > discover that the supply is death.. and also my K3 (#4777) now it's death
> > also..connected to a battery it's not swithing ON... nothing...
> >
> > any idea ??
> >
> > thanks in advance and 73 de IW0HK Andrea
> >
> >
> >
> > Andrea Borgnino IW0HK 7http://www.mediasuk.org/iw0hk
> > http://www.mediasuk.org/archive
> > http://www.biciurbana.org
> > http://iwohk.tumblr.com/
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>

--
Andrea Borgnino IW0HK
http://www.mediasuk.org/iw0hk
http://www.mediasuk.org/archive
http://www.biciurbana.org
http://iwohk.tumblr.com/
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html

m.corinaldesi

Re: Power supply death & K3 also any idea ?

Perhaps before die, the 280A delivered an overvoltage output. That could
explain both the death of the 280A and the short of the K3.
Obviously, I hope to be wrong....

Massimo I0MCF

Il 10/11/2013 20:06, Andrea Borgnino ha scritto:

> yes cable it's good, there was no fuse on cable from K3 to the supply.
>
> I just check the K3 with a battery and it's seem that the K3 it's in short
> circuit.. the battery voltage go to 12v to 0.5v when connected to the K3..
>
> can be the fuse inside the K3 ??
>
> On Sun, Nov 10, 2013 at 7:19 PM, Rick Bates <[hidden email]>wrote:
>
>> Did you confirm cable and fuses are good?
>>
>> 73,
>> Rick wa6nhc
>>
>> Tiny iPhone 5 keypad, typos are inevitable
>>
>>> On Nov 10, 2013, at 9:17 AM, Andrea Borgnino <[hidden email]>
>> wrote:
>>> Hi,
>>> today i was in QSO in 17 meter band CW when my power supply (switching
>> from
>>> Nissei model MS 280A) has shut down (i was in tx with 100 watt). After i
>>> discover that the supply is death.. and also my K3 (#4777) now it's death
>>> also..connected to a battery it's not swithing ON... nothing...
>>>
>>> any idea ??
>>>
>>> thanks in advance and 73 de IW0HK Andrea
>>>
>>>
>>>
>>> Andrea Borgnino IW0HK 7http://www.mediasuk.org/iw0hk
>>> http://www.mediasuk.org/archive
>>> http://www.biciurbana.org
>>> http://iwohk.tumblr.com/
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>
>

Andrea Borgnino IW0HK

Re: Power supply death & K3 also any idea ?

In reply to this post by Rick WA6NHC

Hi all, yes D28 was in short circuit... i leave it and now the radio it's
working.. but without the Kpa100.. the same diode/zener on the Kpa100
module it's in short circuit also.

Now i have to find where to but 2 of the D28 diode...

thanks to all !!!

73 de IW0HK Andrea

On Sun, Nov 10, 2013 at 7:19 PM, Rick Bates <[hidden email]>wrote: