Hi all, I had some trouble with the 700 vc router I just built. Luckily, Paul was available for some live tech support and I got it sorted out. Because the problem seemed like it *could* conceivably happen more than once, I'd like to tell you all about it. The way the coax attaches to the jacks, the braid is pulled to one side first and twisted. On a particular strand of coax, the inner insulation had melted or been cut through (very fine break) and the braid was resting across it, causing a short. I couldn't see this at first and went through a lot of trouble disassembling the PCB sandwich, etc. So if you're having trouble, don't forget to look at the easier solution first. I had carefully scanned the PCB twice, including verifying component placement, before I looked at the other end. And considering the iron proximity we have to work with sometimes when wiring the front panel, it's fairly easy to slip and melt a bit of insulation. David. http://www.mp3.com/baldbastard http://www.mp3.com/stations/baldbastard
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Troubleshooting a short
2000-05-09 by David Bivins
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