[Elecraft] KAT1 installation

Hello, I am currently trying to build up and install a KAT1 into my K1 # 154. I have just updated the firmware to version 1.09 and made all changes of the K1 upgrade kit. Now I am working my way through the KAT1 assembly and operating instructions revision C, Jan. 18, 2001. I am stuck at page

Re: [Elecraft] KAT1 installation

Thanks to everyone for the quick response, I solved the problem. The modification was first mentioned in the K1 builder alert #1 and is also found in the later than revision C manuals. The actual description on how to do the modification or how to solder in RF-R39 varies on the revision number