[Elecraft] Problem after KPA100UPKT upgrade

[Don Wilhelm]

Sam,

Sorry for the delayed response, it has been a busy day and have not had 
a chance to get to my email.

OK, the voltages on D11 seem out of "wack" - so check the tinning of L16 
leads, the soldering of RFC4 and D11.

Once you get proper RX voltages on D11, try the TX diode voltages if it 
still does not work.

73,
Don W3FPR

On 11/22/2011 11:53 PM, scramac wrote:
> Don,
> I made some diode voltage checks and here is what is got:
>
>              Anode                                        Cathode
> D9         ref: 1.41   (13.6 actual)              ref: 13.8  (13.3 actual)
> D10       ref 0.0      (0 actual)                   ref: 14.1  (13.6 actual)
>
>              Anode
> D11       RX 0-10w   ref 14.1  (actual: seem floating in mv range)
>              RX 11-110w  ref 1.5  (actual: seems floating in mv range)
>
> D12       RX 0-10w   ref 14.1  (actual: 1.4V)
>              RX 11-110w  ref 1.5  (actual: 3.6V)
>
> D13     RX 0-10w   ref 14.1  (actual: 13.6V
>            RX 11-110w  ref 1.5  (actual: 1.4V)
>
> D14     RX 0-10w   ref 14.1  (actual: 13.6V)
>            RX 11-110w  ref 1.5  (actual: 1.4V)
>
> Visual check doesn't show anything wrong.  Any thoughts on what could be
> going on here?
>
> Thanks for the help
>
> Sam
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/Problem-after-KPA100UPKT-upgrade-tp7020566p7023201.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>