Cgs synth

Disregard the last message, I've worked out what I was doing
wrong. I just needed to reroute power from the Dilithium
crystals...

Stuadh

If only I could get my CGS VCO to work...

--- In cgs_synth@yahoogroups.com, "stuadh" <stuadh@h...>
wrote:

>
> If I may high-jack this thread briefly, it is on the subject of
> Power-One PSUs. I've just built a 6U case, incorporating a

dual

> output (HCC-15-3) unit. The case has a single distribution
> board (for now) with power going in centrally (to combat line
> overload) and the + and - lines use two tracks anyway. There

are

> 9 sockets on this board (of which I'm using 5).
>
>
> I have jumpered pegs 2 and 3 and applied AC (via a switch

and

> fuse) to pegs 1 and 4, with 5 being left alone as per the
> instructions. I have wired the + out and - out pegs from the

PSU

> (there are several others to choose from i.e. S+ and S-, and in
> the centre, S+, S- and Com) to the + and - lines on the dist
> board, respectively. The 0V line I have attached to the frame,

and

> from there to the Earth point of the power cable.
>
> I appear to be having trouble with the earth. The case

powers

> up, but it doesn't run the modules properly. I've checked the
> outputs, and I'm getting 24V across the + and - terminals, but
> when I check +12V to Earth or -12V to Earth I get a reading of 0
> and -0 respectively.
>
> I've checked the continuity from the IDC sockets through to the
> earth pin of the plug and there is good continuity. Similarly,

there

> is good comtimuity for each of the power rails back to the PSU.
> The IDC sockets are sound with no shorts, and the board is
> correctly isolated from the case. All the mains wiring and the
> wiring from PSU to dist board is from mains flex rated at well
> above the 3.4A maximum.
>
> I suspect I've misunderstood something rather than there

being

> a physical problem with the wiring.
>
> Your assistance would be greatly appreciated.
>
>
> --- In cgs_synth@yahoogroups.com, sasami@h... wrote:
> >
> > >BTW, If you're outside of the US NEVER buy from Allied. I
> thought
> > >this shipping charge was large because of the weight of the
> Power
> > >One PSU's, so last month I foolishly ordered some Vactrols
> and 20 of
> > >8 pin IC's that would fit into a jiffy bag and Mouser would
> charge
> > >$12 by USPS small packet. They came in a big box (!) and
> Allied
> > >charged me $89 shipping, despite me requesting that

items

> be shipped
> > >by USPS small packet service. I'm now the proud owner of
> some of the
> > >most expensive Vactrols in the Universe :-(
> >
> > I've heard this story before, so you aren't the first person

they've

> done it
> > to. Bad news.
> >
> > Ken
> >
>

__________________________________________________

> _____________________
> > Ken Stone sasami@h... or sasami@c...
> > Modular Synth PCBs for sale
> <http://www.blaze.net.au/~sasami/synth/>
> > Australian Miniature Horses & Ponies
> <http://www.blaze.net.au/~sasami/>