[Elecraft] Re: a little problem with tap/push menu/edit button and 'vfo knob'

[Wayne Burdick]

Jerry, this is almost a solder bridge between two pads (or short between two
traces) on the Front Panel board, most likely involving pin 14 of U3. Another
possibility is a short between pin 2, 3, or 4 of the the shaft encoder (Z1) and
one of the switches or another pin of U3 or even of U2. 

You might start with the voltage charts for the Front Panel board and see if
anything obvious is changing when you move the encoder. Also do a careful visual inspection.

This could also be a short on the Control board, but the DC voltages on the
Front Panel are easier to check, so start there.

73,
Wayne
N6KR

Terres Family wrote:
> 
> Hi All,
> I have been working on partially built rev a K2 (sn <1000). The 1st part
> is done. If I use the 'VFO knob' to change a menu choice or a chosen
> menu's setting then sometimes, often actually, tapping or holding the
> menu/edit button will do nothing but if I move the 'VFO knob' just a
> little bit, then often the menu/edit button will become responsive
> again. Sometimes I have to move it just a little bit again. If the
> menu/edit button is unresponsive then the band+ and band- buttons are
> unresponsive too. If I have made successful menu or setting choices
> using the band+/band- buttons (instead of the VFO Knob) then I never
> lose the menu/edit button responsiveness.