Hi Don, Peter, and the rest of the list. I think that I might have found the problem. My IO port appears to the check out fine. When I connect the cable I was getting NOTHING on all of the pins on all of the connectors. I removed the plastic D shell for the connector at the radio and then rechecked the remote end of the snake and I then had power on the pins as expected.
It turns out that the plastic D shell is not letting the pins get inserted/engaged far enough into the connector to make contact. I will either need to trim down the plastic or replace the D shell. Once I resolve this little item I can reconnect stuff and retest. Hopefully that is my only problem in the tune up but anything is possible as I am just getting started. It will likely be a day or two before I can get enough bench time to make the mods and restart the testing. 73 -- John Hoaglun NG0R - EN25 http://www.hoaglun.com On Sun, 2010-08-15 at 14:15 -0400, Don Wilhelm wrote: > John, > > Since you seem to be certain of the cable -- > Check the voltage at KIO2 or KPA100 AUX I/O pin 8 - it should be 12 > volts. If it is not (and you have the KIO2), check to see if the > RFChoke L1 on the KIO2 board is open. > > When plugged into a powered on K2, all connectors on the cable should > have 12 volts on pin 8. > > 73, > Don W3FPR > > John Hoaglun wrote: > > Hi Peter & the list, > > > > That was my initial first guess too. I looked at the numbers in the > > molded plastic (since it is accurate on both sides) and then tested them > > with a DVM to make sure that they matched at all four ends (K2, 144, > > 222, 432) and they do. I need to go run a couple of errands this > > afternoon. Just for grins I will stop at RShack and see if they have a > > couple of DP9's on the shelf. If so I will likely make up a quick cable > > that I can use for direct K2 to one transverter for bench testing. (I am > > crossing my fingers that it is something simple like that.) > > > > FYI... I just went back to the work bench, swapped the JP7 & JP8 jumpers > > and then disabled the DIP that controls the resistor network for the TRN > > address, power cycled them and all three transverters respond as > > expected. Of course I would prefer to use them with the K2 for auto > > switching so I will need to figure this out. > > > > Please keep sending me your ideas. I will see if I can get the parts to > > make a test cable this afternoon. (50 miles round trip for 2 DB9... > > becomes an expensive part.) > > > > 73 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
