[Elecraft] K2 VFO encoder / control board close fit
Don Wilhelm
donwilh at embarqmail.com
Tue May 8 23:20:45 EDT 2018
Mark,
Put the plastic sheet in anyway. In your case, it may be overkill (good
job on flush cutting BTW).
73,
Don W3FPR
On 5/8/2018 10:26 PM, Mark Petrovic wrote:
> Don, thank you.
>
> With some copper braid solder wick to remove a bit of the fillets on
> the joints on both boards, and after using my new Xcelite 170M shears,
> the control board can be secured without an insulating sheet between
> it and the front panel board. I may still use that sheet of plastic
> there, but the new configuration is /much/ better than when I first wrote.
>
> Mark
> AE6RT
>
> On Sun, May 6, 2018 at 7:27 AM, Don Wilhelm <donwilh at embarqmail.com
> <mailto:donwilh at embarqmail.com>> wrote:
>
> Mark,
>
> The instructions packed in the encoder envelope tell you to flush
> cut not only the pins on the encoder board, but also the leads on
> the control board that might contact it.
>
> If you do not have flush (or shear) cutters, and want inexpensive
> ones, look for Xcelite (or Lufkin or Cooper) 170M shear cutters.
> They can often be found in your local Home Depot.
>
> In addition to flush cutting the boards, put something on the back
> of the encoder board - fish paper would be best, but a piece of
> flat plastic cut from one of the many plastic wrapped consumer
> products would be good.
> Paper or electrical tape will eventually puncture.
>
> 73,
> Don W3FPR
>
>
> On 5/5/2018 10:58 PM, Mark Petrovic wrote:
>
> While performing the initial power on tests on my K2 S/N 7809,
> I noticed
> that the VFO knob/display tuning test produced a sluggish,
> intermittent, or
> no change in display when I turned the knob in either direction.
>
> I proceeded to remove the two chassis screws securing the
> control board to
> the front panel board. This allowed the control board to
> relax and
> slightly fall away from the front panel board, toward the back
> of the
> radio, opening up the space between the front panel encoder
> board and the
> control board. The display was at once responsive to knob
> turning on all
> RATE settings.
>
>
>
>
> --
> Mark
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