[Elecraft] KAT1 Install Troubles

[Don Wilhelm]

Andy,

That trace cut was not to be done on a new K1 RF board.  You will have 
to remove the resistors and capacitor and repair the trace cut with a 
jumper wire.  Check page 7 - the "i in a triangle" informational item 
near the bottom of the page - it says to skip the next 5 steps if your 
board is new.

I believe 'undoing' those 5 steps will restore things to normal.

73,
Don W3FPR

Andy Engle wrote:
> Hey Gang!
>
> I finished my K1 this evening!  All seemed well until I went to install the ATU (KAT1).
>
> During initial test (p.9), I put the ATU mode into F1.3 and then exit out.  I press WPM- & WPM+ to tune and the display reads P2.3 instead of the r8.5 that's expected. In the troubleshooting, guidance is to verify the orientation of U2 and D3.  I verified they are correct.  I also checked that D3 was still functional. I have checked and double-checked the solder work on U2, D3, and adjacent components.  All look to be okay with no obvious shorts.
>
> During installation of the KAT1, instructions were to cut the trace on the bottom of the board and install RF-R4.  R4 was already installed in the space indicated by the silkscreen on the bottom of the board.  So, I cut the trace and removed the OLD RF-R4 and reinstalled it, bridging the trace I cut.  Is this correct?
>
> If I put the ATU into TUN mode and exit, triggering tuning causes the relays to begin switching madly and never stopping.
>
> Any thoughts as to how I can figure this out, please?  All help greatly appreciated!
>
> Happy 4th to all!
>
> --Andy
> K0ADE
>
>