Don, It is all working again!
The power supply's negative terminal was the problem. The terminal wan't falling off, but the internal side of the plastic feed-thru washer had cracked, and about half fell off inside. That caused it to loosen up slightly. Without the KPA hooked up, it supplied the LP-100 with enough current, and it measured the correct voltage, so I assumed it was OK, and eliminated it. I also mentioned that I was having trouble getting the K2 to communicate with a logging program, and again, I was convinced that my home-built multi-cable assembly was the culprit. It is now working. I replaced the BRAND NEW 6' long DB9 to DB9 serial cable (purchased from a "large on-line retailer"), with an old one I bought years ago at Radio Shack. I have a lot of experience that tells me that I should check my work first, but now I know not to trust everything else - even if it is new. Thanks again for your help. 73, Jim KO5V >-----Original Message----- >>From: Don Wilhelm <donw...@embarqmail.com> >>Sent: Feb 7, 2019 12:22 PM >>To: Jim KO5V <k...@earthlink.net> >>Subject: Re: K2: I killed my KPA100 >> >>Jim, >> >>That certainly could cause the problem. >> >>73, >>Don W3FPR >> >>On 2/7/2019 1:50 PM, Jim KO5V wrote: >>> Don, >>> >>> OK, I again thoroughly checked the PP connectors and the fuse/fuse holder, >>> they're good, so I decided to remove the cable from the power supply, and >>> the bolt negative output of the Tripp-Lite rotated. I opened it up and >>> found the insulating washer was broken. I need to go to the hardware store >>> and get a couple of new washers, but I'll bet that's the problem. It would >>> run my LP100 when it was the only thing connected, but that draws little >>> current. I just assumed the problem was my work - and it may still be! I'll >>> let you know what happens after I repair the supply. >>> >>> Thanks for your patience. 73, >>> >>> Jim KO5V >>> >>> >>> -----Original Message----- >>>> From: Don Wilhelm <donw...@embarqmail.com> >>>> Sent: Feb 7, 2019 11:00 AM >>>> To: Jim KO5V <k...@earthlink.net> >>>> Subject: Re: K2: I killed my KPA100 >>>> >>>> Jim, >>>> >>>> All that says the KPA100 should be OK, check the Anderson Power poles >>>> for proper insertion of the contact blades both on your power cable and >>>> on the KPA100. >> ______________________________________________________________ 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
