Cgs synth

On Mon, Aug 4, 2008 at 6:18 PM, lexvortex <afonso_david@...> wrote:

> Hi,
>
> I've just built my first CGS module, the utility LFO :) I finished
> and powered it up and it worked fine. I then disconnected it and
> cleaned it up in the back (used ties to hold the wires together and
> used my roommates blow dryer to shrink some shrink wrap around the
> LEDs leads) I then went and reconnected it to my system and LFO 1 no
> longer works (LFO 2 still works fine). I've checked the wiring and
> replaced the IC's but to no avail.
>
> I implemented a range switch for both LFOs which does work. When I
> now switch through the different setting for LFO 1 it affects the
> output of LFO 1 but the LFO does not sweep through its range. What
> could have went wrong, did the blow dryer destroy the LED and now the
> circuit won't work (is the LED even necessary to make the circuit
> work) or maybe the heat destroyed another component? The panel was
> really hot from the heat of the blow dryer.
>
> Any suggestions would be extremely helpful to me. I'm new to
> building modules and don't know a lot about trouble shooting them.
>
> Thank you,
> Dave
>
>
>



--
---------------------
http://www.kwotemusic.com
http://www.kwotemusic.com/store.html


[Non-text portions of this message have been removed]

On Aug 4, 2008, at 8:18 PM, lexvortex wrote:

> Hi,
>
> I've just built my first CGS module, the utility LFO :) I finished
> and powered it up and it worked fine. I then disconnected it and
> cleaned it up in the back (used ties to hold the wires together and
> used my roommates blow dryer to shrink some shrink wrap around the
> LEDs leads) I then went and reconnected it to my system and LFO 1 no
> longer works (LFO 2 still works fine). I've checked the wiring and
> replaced the IC's but to no avail.
>
> I implemented a range switch for both LFOs which does work. When I
> now switch through the different setting for LFO 1 it affects the
> output of LFO 1 but the LFO does not sweep through its range. What
> could have went wrong, did the blow dryer destroy the LED and now the
> circuit won't work (is the LED even necessary to make the circuit
> work) or maybe the heat destroyed another component? The panel was
> really hot from the heat of the blow dryer.
>
> Any suggestions would be extremely helpful to me. I'm new to
> building modules and don't know a lot about trouble shooting them.
>
> Thank you,
> Dave
>
>
>

[Non-text portions of this message have been removed]

>Hi,
>
> I've just built my first CGS module, the utility LFO :) I finished
>and powered it up and it worked fine. I then disconnected it and
>cleaned it up in the back (used ties to hold the wires together and
>used my roommates blow dryer to shrink some shrink wrap around the
>LEDs leads) I then went and reconnected it to my system and LFO 1 no
>longer works (LFO 2 still works fine). I've checked the wiring and
>replaced the IC's but to no avail.
>
> I implemented a range switch for both LFOs which does work. When I
>now switch through the different setting for LFO 1 it affects the
>output of LFO 1 but the LFO does not sweep through its range. What
>could have went wrong, did the blow dryer destroy the LED and now the
>circuit won't work (is the LED even necessary to make the circuit
>work) or maybe the heat destroyed another component? The panel was
>really hot from the heat of the blow dryer.
>
> Any suggestions would be extremely helpful to me. I'm new to
>building modules and don't know a lot about trouble shooting them.
>
>Thank you,
>Dave
>
>
>------------------------------------
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>Yahoo! Groups Links
>
>
>
>

--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> You have probably done some physical damage, such as lifting a
solder pad,
> or breaking a wire that you have somehow not noticed. And it probably
> occured when you were tidying up wires. You may have even
heat-shrinked over
> a bad joint!
>
> Ken
>
> >Hi,
> >
> > I've just built my first CGS module, the utility LFO :) I finished
> >and powered it up and it worked fine. I then disconnected it and
> >cleaned it up in the back (used ties to hold the wires together and
> >used my roommates blow dryer to shrink some shrink wrap around the
> >LEDs leads) I then went and reconnected it to my system and LFO 1 no
> >longer works (LFO 2 still works fine). I've checked the wiring and
> >replaced the IC's but to no avail.
> >
> > I implemented a range switch for both LFOs which does work. When I
> >now switch through the different setting for LFO 1 it affects the
> >output of LFO 1 but the LFO does not sweep through its range. What
> >could have went wrong, did the blow dryer destroy the LED and now the
> >circuit won't work (is the LED even necessary to make the circuit
> >work) or maybe the heat destroyed another component? The panel was
> >really hot from the heat of the blow dryer.
> >
> > Any suggestions would be extremely helpful to me. I'm new to
> >building modules and don't know a lot about trouble shooting them.
> >
> >Thank you,
> >Dave
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>

> Yep, you were right :) I fixed it and it works great!! I did break a
> wire and it slipped my attention somehow (too much solder fumes).
>
> Thanks for the help :)
> Dave

> used my roommates blow dryer to shrink some shrink wrap around the
> LEDs leads)

> On 2008-08-05 01:18 -0000, lexvortex wrote:
>
> > used my roommates blow dryer to shrink some shrink wrap around the
> > LEDs leads)
>
> Heat-shrink tubing is shrunk at a specific temperature. Too cold
> and the shrinking may not be stable. Too hot and the tubing will
> melt and split.
>
> The recommended temperature varies (check the manufacturer's
> documentation) but it's usually around 150 °C. A hair dryer
> doesn't go that high, or so we hope !
>
> A paint stripper is much hotter than the recommended temperature
> but if you're careful not to leave it on for too long, it can do.
>
> There are adjustable paint strippers but they tend to be much more
> expensive. On the other hand, they may be more durable : my and
> other people's experience suggest that cheap strippers last just a
> few tens of hours.
>
>