Les: There is a three amp fuse and a reverse polarity diode that will blow the fuse to protect the Flex-1500. It is a cheap automotive fuse, so you can buy at local auto parts store, or order from Mouser. I can send you disassembly and replacement instructions for the fuse, if you are comfortable opening up the case on your 1500. Probably not any other damage to your 1500. Or you can send it back here for fuse replacement.
I am more concerned that the USB cable was getting hot. This means the radio was not properly grounded and the power supply was seeking ground through the computer cable. We have had a certain un-named PowerSDR software developer do something like this and burn up the motherboard in their computer. --- Graham / KE9H == On Fri, Feb 18, 2011 at 12:13 PM, Les Rayburn <l...@highnoonfilm.com> wrote: > I loaned out my Flex 1500 along with a 222 transverter to a friend who > wanted to experiment with the set up at his home for a few days. He called > me and said that he couldn't get the unit to work, and asked if I would take > a look. I went over after work expecting to find the usual assortment of > software related issues. > > Instead, when I was looking over his connections, I happened to touch the > USB connector on the front of the unit. It was hot to the touch, and I > immediately realized something was amiss. We unplugged > everything, and that's when I spotted his error. I had provided a small > switching 13 volt power supply equipped with Anderson PowerPoles. He was > unfamiliar with them, and didn't realize that they were reversed in > alignment. When he couldn’t get red to mate with red (physically) he instead > mated red to black. The result was that he applied reverse polarity to the > Flex 1500 for quite some time. > > The unit now refuses to power up (no power indication on the front panel > LED switch) and otherwise function. > > So, how screwed am I? And no, this isn't one of those "I have a friend" > stories, when the friend is me. Callsigns have simply been changed to > protect the innocent. > > 73, > > > Les Rayburn, N1LF > EM63nf > 121 Mayfair Park > Maylene, AL 35114 > > 6M VUCC #1712 > Grid Bandit #222 > Life Member Central States VHF Society > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flexradio.com/ Homepage: > http://www.flexradio.com/ > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
