I've always said "new only guarantees new....not necessarily good".     That's one reason why companies supply a warranty with a new product.  They expect some failures and some to be dead out of the box.

73

Bob, K4TAX


On 2/7/2019 6:41 PM, Jim KO5V wrote:
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.
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