[Elecraft] KSYN3A mod problem

[Nick Lelyak]

yes Don,
problem comes on again after radio cools down.
Pins were properly cleaned from residue, but they
are not gold plated and I black spots on some of them had left after
cleaning with contact cleaner. So I decided buy recommended cleaner first

Thanks

Nick

On Mon, Sep 7, 2015 at 5:43 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> Nick,
>
> Yes, but it fails when it cools again - something is not making good
> contact, and it may be residue from the cleaner.  I can't be certain of
> that, but I would get that cleaner residue off and try again.
>
> I would suggest that you remove the cleaner residue from the contacts with
> acetone - apply it with a brush or cotton swab and immediately wipe the
> area with a clean cloth of paper towel.  Do only a few pins at a time, and
> do not let the acetone dry on the contacts or board.
> You may want to mate and unmate the front panel and RF board several
> times, cleaning between each to hopefully clean some of the 'goop' out of
> the female header.
>
> If you do not have gold pins on the connector to the front panel, consider
> asking Elecraft for the gold replacement pins.
>
> 73,
> Don W3FPR
>
> On 9/7/2015 5:27 PM, Nick Lelyak wrote:
>
> Thanks Don, Guy
> appreciate yours quick response.
> I found out that problem disappears when front panel warms up to 37 C
> and more.
> Looks like problem somewhere in FP. To clean main connector I used
> Electronic Contact Cleaner. It may works not so good as Deoxit which
> is not widely available in Canada. In any case to move on have to buy
> Deoxit first.
> Thanks again
>
> 73, Nick VE3FJ
>
>
>