Hi When I build a K2 I always solder all of the pins except pin 4 then pull out pin 4 with pliers. If you have already soldered pin 4 then you could reheat pin 4 and pull gently to remove it. You could also just cut off pin 4 as instructed in the manual. The female connector has a little plastic plug that fills the hole in pin 4 on both ends of the KPA100 ribbon cable. If you lost the little plugs or don't have them you could use a tooth pick to stick into pin 4 and then break it off or clip it with your flush cutters. This all relates to the aux I/o connector on the control board not the 9 pin on the back of the K2.
On the 9 pin connector on the back of the K2 you should build the connector out of the parts supplied with the KPA100 or KIO2 and not try to use a commercially built RS232 cable. Only three pins relate to RS232 the rest are for control of Elecraft options like the KPA100 or KAT100 . Using a standard RS232 cable will destroy several components on the control board or KPA100 if it is plugged into a computer RS232 port. Don Brown KD5NDB ----- Original Message ----- From: "Nigel" <[EMAIL PROTECTED]> To: <elecraft@mailman.qth.net> Sent: Tuesday, November 29, 2005 4:49 PM Subject: RE: [Elecraft] K2 AUX I/O connector > Thanks Don, for the reminder. > > I know in the past it has been posted to insert a pin in terminal 4 on the > K2 and remove the same from the corresponding plug to make them unique to > the K2. > How's the easiest way to do this? Can you pull the pin from the male > plug > and insert it into the female one or do you need to wreck another one? > > > 73, Nigel ZL2DF > > > > ------------------------------ _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com