MOTM

Oh, cool!

I have this thing called a Computer Controlled TB-303. It makes a really
annoying, shrieky sound when I turn up the resonance and turn down the
cutoff, so it must be broken. If I sent that to you, Paul W., would you fix
it for me and hang on to it for awhile to make sure it works?

:)



> -----Original Message-----
> From: Paul Wagorn [mailto:pwagorn@...]
> Sent: Tuesday, May 09, 2000 11:06 AM
> To: motm@egroups.com
> Subject: RE: [motm] Troubleshooting a short
>
>
> hey david:
>
> next time, just send it to me right away, I'll fix it for you...;)
>
> -paul
> (still mad that biv got the last router!)
>
>
>
> -----Original Message-----
> From: David Bivins [mailto:dbivins@...]
> Sent: May 9, 2000 11:37 AM
> To: MOTM
> Subject: [motm] Troubleshooting a short
>
>
> 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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