No, all the modules work fine, it must be a loose strand of wire in the MTA connector, it is wired correctly, it just shorts out when even you connect it to a module. (it even shorts when you connect it to an MTA connector not attached to anything, weird... -Nate Paul Schreiber wrote: > Sure it wasn't a bad '800? > > Check the wiring on the cable. I have seen 1 (out of ~1000) cables > that had > the 2 outside wires 'crossed'. I now try to check for this as I pack > them > up. > > Paul S. > > ----- Original Message ----- > From: Nathan Alan Hunsicker <nate@...> > To: MOTM Newsgroup <motm@egroups.com> > Sent: Monday, May 08, 2000 7:03 PM > Subject: [motm] Thank God!!! > > > > I finished building my 410 today. After replacing that pesky TL074 > op > > amp I put in backwards, I was ready to power up the module and test > it. > > When I connected it to the power supply and turned it on, everything > > > stopped working, the light on my LFO was showing a dim green and was > not > > oscillating. Of course I immediately turned the PS off and > disconnected > > the 410, powered back up and everything works fine. Now I'm thinking > > > something is shorted out so I take one last look at EVERYTHING, not > one > > thing wrong (except for a resistor not facing the same way as the > > others.) my next thought was does my PS have enough power to run all > my > > modules? I only have a 300, 320, 110, 120, 420, 410 & three 800's, > it > > couldn't possibly be the PS, but just in case, I disconnect one of > the > > 800's and try again, SUCCESS!!! So now I'm thinking I need another > PS as > > I prepare the module to put in my rack, I plug it back in, bolt it > to > > the rack rails, power up and WHAMMO, it happens again. I'm totally > lost, > > just as a last resort I try switching the MTA cable to the one that > was > > powering the 800 and it works! For some reason, when the bad MTA > cable > > is not connected to a module, it is fine, but as soon as I connect > it to > > a module (any module) it shorts out. I am so glad that it was the > cable > > and not my module. NOW, what was the reason I typed all of this you > ask? > > Just in case you build a module and can't figure out why it doesn't > > work, don't forget the obvious, test the power cable. -Nate > > > > > ------------------------------------------------------------------------ > > > You have a voice mail message waiting for you at iHello.com: > > http://click.egroups.com/1/3555/5/_/529958/_/957831275/ > > > ------------------------------------------------------------------------ > > > > > > > ----------------------------------------------------------------------- > > ----------------------------------------------------------------------- >
Message
Re: [motm] Thank God!!!
2000-05-09 by Nathan Alan Hunsicker
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