Hi everybody, I'm just putting together my KX3 kit. While mounting the RF board Rev D to the bottom cover I zipped off one of the M-F standoffs using rather little force. As I usually have a good feeling which force may be used on these standoffs I started investigating things a bit.
After removing the RF board I callipered the remaining gap after fully screwing in the M-F standoff into the round standoff at the bottom cover. The gap is 1.9 mm / 0.075 in. The RF board PCB has a thickness of 1.7 mm / 0.066 in. The lock washer was in place when measuring the gap (see photo). The pan head screw at the bottom cover has a length of 4.8 mm / 0.0177 in which matches the numbers in the instruction manual. Obviously it is not possible to securely mount the PCB to the bottom cover with the above dimensions. In my understanding those screw points are being used as grounding points so there should be a reliable electrical connection as well. Did anybody here also experience this issue? How did You solve this? I could use two split lock washers between PCB an M-F standoff, but this would change the distance between RF board and KXAT3 board and front panel. Or do I just have bad luck with tolerances? Any idea or hints are highly appreciated. VY 73 Marcus, DL1EKC PS: In case attachments are not allowed, go to http://www.dl1ekc.de/FTP%20Download/P1080449_640.jpg ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
