MOTM

-----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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>
>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/baldbastard
>
><http://www.mp3.com/stations/baldbastard>http://www.mp3.com/stations/baldbastar
>d
>
>
>
>
>
>------------------------------------------------------------------------
>
>Get your money connected @ OnMoney.com - the first Web site that lets
>
>you see and manage all of your finances all in one place.
>
><http://click.egroups.com/1/3012/5/_/529958/_/957890820/>http://click.egroups.c
>om/1/3012/5/_/529958/_/957890820/
>
>------------------------------------------------------------------------
>
>
>
>
>
>
>
>
>
>

-----Original Message-----
From: David Bivins [mailto:dbivins@...]
Sent: May 9, 2000 12:21 PM
To: motm@egroups.com
Subject: RE: [motm] Troubleshooting a short


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
>
>
> ------------------------------------------------------------------------
> Get your money connected @ OnMoney.com - the first Web site that lets
> you see and manage all of your finances all in one place.
> http://click.egroups.com/1/3012/5/_/529958/_/957890820/
> ------------------------------------------------------------------------
>
>
>
>
> ------------------------------------------------------------------------
> You have a voice mail message waiting for you at iHello.com:
> http://click.egroups.com/1/3555/5/_/529958/_/957892128/
> ------------------------------------------------------------------------
>
>


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> 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
>
>
> ------------------------------------------------------------------------
> Get your money connected @ OnMoney.com - the first Web site that lets
> you see and manage all of your finances all in one place.
> http://click.egroups.com/1/3012/5/_/529958/_/957890820/
> ------------------------------------------------------------------------
>
>

> -----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
>
>
> ------------------------------------------------------------------------
> Get your money connected @ OnMoney.com - the first Web site that lets
> you see and manage all of your finances all in one place.
> http://click.egroups.com/1/3012/5/_/529958/_/957890820/
> ------------------------------------------------------------------------
>
>
>
>
> ------------------------------------------------------------------------
> You have a voice mail message waiting for you at iHello.com:
> http://click.egroups.com/1/3555/5/_/529958/_/957892128/
> ------------------------------------------------------------------------
>
>

> -----Original Message-----
> From: velure [mailto:velure@...]
> Sent: Tuesday, May 09, 2000 11:08 AM
> To: motm@egroups.com
> Subject: Re: [motm] Troubleshooting a short
>
>
> > 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.
>
> that's why i jump to the end of the instuctions and wire up the
> front panel
> jacks and knobs before i assemble the unit.  i guess after you build a few
> panels, you'll figure out what works best for you.
>
> -steve
>
>
> ------------------------------------------------------------------------
> Buy and sell used, rare and vintage gear at the Web's best
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> http://click.egroups.com/1/3730/5/_/529958/_/957892529/
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>