Vintage Synth Repair

My set is very simple, just the ARP and a mixer with headphones, both connected to the 
same power socket, both earthed. Silly question, but would an earth loop stop the VCF 
from working?

--- In vintagesynthrepair@yahoogroups.com, "John Brewer" <john@...> wrote:
>
> Hi Matt.
> That should be fine.  Is it a standard step up transformer or an inverter
> you are using.  The hum sounds like an earth loop.    Can you e-mail a
> simple wiring diagram of the set up you have showing any earth connections.
> If you are only using a small power amp, try using the same 240V for it as
> you are using for the ARP.
> John.
> ----- Original Message -----
> From: "mcharrigan" <mcharrigan@...>
> To: <vintagesynthrepair@yahoogroups.com>
> Sent: Friday, October 13, 2006 6:57 AM
> Subject: [vintagesynthrepair] Re: My new Odyssey Doesn't Work
> 
> 
> > Hi John,
> > The ARP's input supply is is 100-130v, 20W, 50-60Hz.
> > The coverter's output is 100-120v with maxium load of 100w.
> > Thanks,
> > Matt (Nottingham UK)
> >
> >
> > --- In vintagesynthrepair@yahoogroups.com, "John Brewer" <john@> wrote:
> > >
> > > Hi, Can you give a few more details.
> > > What should the input supply be into the Odyssey?
> > > What converter are you using?
> > > JohnB (Somerset UK)
> > >
> > > ----- Original Message -----
> > > From: "mcharrigan" <mcharrigan@>
> > > To: <vintagesynthrepair@yahoogroups.com>
> > > Sent: Thursday, October 12, 2006 8:53 AM
> > > Subject: [vintagesynthrepair] My new Odyssey Doesn't Work
> > >
> > >
> > > > Sorry if this post is a bit vague...
> > > > I've just got an ARP Odyssey from the US brought over to uk and
> purchased
> > > a power coverter.
> > > > When powered up and plugged it displays the following symptoms
> > > >  - Produces a really loud earth hum
> > > >  - Sounds high pass filtered - no bass at all (the actual hpf is off
> of
> > > course!)
> > > >  - VCF doesn't work at all and neither does the mixer section
> > > >
> > > >  If anyone has any ideas on the above i'd be really grateful.
> > > >
> > > > Thanks,
> > > >
> > > > Matt.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > --
> > > > No virus found in this incoming message.
> > > > Checked by AVG Free Edition.
> > > > Version: 7.1.408 / Virus Database: 268.13.2/472 - Release Date:
> 11/10/06
> > > >
> > > >
> > >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.1.408 / Virus Database: 268.13.2/472 - Release Date: 11/10/06
> >
> >
>