Emax

I don't know. Mine is an Emax I, but I can't see them being so
different. Anyone else know otherwise?
Alan

--- In emax@yahoogroups.com, s* <scart@...> wrote:
>
> Great news!  Will this work for both Emax I and II?
> 
> On 10/19/07, alancurrall <alan@...> wrote:
> >
> >   Hi Folks,
> >
> > Great news! Thanks to all the help from this group, I've got a fully
> > functioning Emax again.
> >
> > Also (kind of) good news for anyone not wanting to use an ATX PSU.
> >
> > I tested it out first with an ATX that I salvaged from a scrapped
PC. This
> > worked fine, but it
> > was going to be a bit of a messy solution, due to the size of the
PSU and
> > all the surplus
> > cabling. Also, I just couldn't put up with that bloody noisy fan!
> >
> > Next step was to shop around for a dedicated replacement power supply.
> > With the help of
> > an electrician neighbour, I tracked down one of the few that seems
to be
> > made at the
> > moment with the necessary outputs.
> >
> > So, if anyone else is interested here are the details:
> > It's an EOS VLT60-3000
> > I bought it from RS Components (http://rswww.com). Their stock
number for
> > it is
> > 377-6930. It's about one third of the size of the original supply so I
> > mounted a piece of
> > blank circuit-board fiberglass where the original supply went, and
> > attached the new one to
> > this using plastic stand-offs. The blank board and stand-offs were
from
> > Maplin's.
> >
> > The only potential problem I had was finding a six-way molex plug to
> > connect the output
> > of the power supply to the cables that go to the Emax board. I had to
> > canibalize an old
> > scrapped AppleMac power supply for this. However, I'm sure this
kind of
> > plug is obtainable
> > if you take the power supply to a computer repair shop.
> >
> > Now for the bad news... The list price for this power supply is
£46.25.
> > However, by the
> > time I'd added the postage and VAT it cost me £60. This is what I
paid for
> > the Emax!
> >
> > Anyway, it was well worth it and I'm very happy with my new EMAX
> >
> > Thanks again to everyone who helped me, and good luck to anyone
else who
> > needs a new
> > power supply for their Emax.
> >
> > Cheers,
> > Alan Currall
> >
> > --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "Dave Sotnick"
> > <sotnickd@> wrote:
> > >
> > > Ahhh, yes! I forgot to mention the GREEN wire (pin 16).
> > >
> > > It is labeled as "Power Supply On (active low)." Short this pin
to GND
> > to
> > > switch power supply ON, disconnect from GND to switch OFF.
> > >
> > > So, you'll want to connect the green to one of the black wires
(i.e. pin
> > 16
> > > to pin 17).
> > >
> > > -Dave
> > >
> > > On 10/19/07, Simon_Owen <iss049@> wrote:
> > > >
> > > > Hi There
> > > >
> > > > Well, i've tried installing an ATX PSU in my emax following the
> > pinouts
> > > > listed, but still no
> > > > joy. The PSU doesn't actually want to power up. Could this be
due to
> > the
> > > > fact that some
> > > > ATX PSU's get their power-on message by the usual method of
pressing
> > the
> > > > "power on"
> > > > button the PC thereby triggering the power on the PSU ??? - I
dunno,
> > > > anyone?
> > > >
> > > > Bloody thing!
> > > >
> > > > Simon
> > > >
> > > >
> > > > --- In emax@yahoogroups.com
<emax%40yahoogroups.com><emax%40yahoogroups.com>, Alan Currall
> > > > <alan@> wrote:
> > > > >
> > > > > Dave,
> > > > >
> > > > > Thank you so much. That is so clear and thorough. You've
filled in
> > > > > all the gaps left by the other descriptions of using an ATX
on this
> > > > > message board. I realise that people are probably just trying to
> > > > > deter 'have-a-go amateurs' like me from doing it themselves and
> > > > > getting an electric shock, but a lot of the previous advice
on this
> > > > > subject seems to expect a general grounding in electronics
(no pun
> > > > > intended).
> > > > >
> > > > > I'll let you know how I get on. (If I survive!)
> > > > > Alan
> > > > >
> > > > > On 13 Oct 2007, at 5:44AM, Dave Sotnick wrote:
> > > > >
> > > > > > I just got out my multimeter and figured out the voltages
of the
> > > > > > existing
> > > > > > wiring from my working Emax I power supply. It is as follows:
> > > > > >
> > > > > > Green: Ground/Earth (0v)
> > > > > > Purple: -12v DC
> > > > > > Orange: +12v DC
> > > > > > Yellow: +5v DC
> > > > > >
> > > > > > The three sets of four wires as above each carry the same
> > voltages,
> > > > > > but
> > > > > > presumably have different current requirements.
> > > > > >
> > > > > > The ATX power supply pinouts for a 24-pin ATX power supply
(from
> > here:
> > > > > > http://en.wikipedia.org/wiki/ATX) show the following mapping
> > should
> > > > > > work:
> > > > > >
> > > > > > ATX Connector Emax Connector
> > > > > > ----------------------------------------
> > > > > > Pin 3 (black) Pin 2 (green)
> > > > > > Pin 4 (red) Pin 1 (yellow)
> > > > > > Pin 10 (yellow) Pin 3 (orange)
> > > > > > Pin 14 (blue) Pin 4 (purple)
> > > > > > Pin 5 (black) Pin 7 (green)
> > > > > > Pin 6 (red) Pin 6 (yellow)
> > > > > > Pin 11 (yellow) Pin 8 (orange)
> > > > > > Pin 14 (blue) Pin 9 (purple)
> > > > > > Pin 7 (black) Pin 12 (green)
> > > > > > Pin 21 (red) Pin 11 (yellow)
> > > > > > Pin 11 (yellow) Pin 13 (orange)
> > > > > > Pin 14 (blue) Pin 14 (purple)
> > > > > >
> > > > > > Note that the -12v supply (pin 14/blue) is bridged to
three purple
> > > > > > wires on
> > > > > > the Emax wiring harness, and the +12v supply (available on
pins
> > > > > > 10/11 on
> > > > > > ATX24) is shared from pin 11 to pins 8 and 13 of (orange)
on the
> > > > > > Emax wiring
> > > > > > harness.
> > > > > >
> > > > > > Before you plug anything in, make sure you have the right
voltages
> > > > > > on the
> > > > > > connector that goes onto the Emax I mainboard:
> > > > > >
> > > > > > 1: yellow (+5v)
> > > > > > 2: green (COM)
> > > > > > 3: orange (+12v)
> > > > > > 4: purple (-12v)
> > > > > > 5: n/c
> > > > > > 6: yellow (+5v)
> > > > > > 7: green (COM)
> > > > > > 8: orange (+12v)
> > > > > > 9: purple (-12v)
> > > > > > 10: n/c
> > > > > > 11: yellow (5v)
> > > > > > 12: green (COM)
> > > > > > 13: orange (+12v)
> > > > > > 14: purple (-12v)
> > > > > >
> > > > > > Hope that helps!
> > > > > >
> > > > > > -Dave
> > > > > >
> > > > > > On 10/10/07, alancurrall <alan@> wrote:
> > > > > > >
> > > > > > > I've got an atx power supply waiting to go into my Emax 1 SE
> > Rack,
> > > > > > > since the original PSU went bang. I know there are
helpful Emax
> > > > > > users
> > > > > > > out there who've replaced their power supplies in this
way and
> > claim
> > > > > > > it's a relatively simple fix. However, I don't have a
clue as
> > > > > > regards
> > > > > > > the wiring. The multi-cable coming from the ATX has
different
> > > > > > coloured
> > > > > > > wires than the multi-cable that connects to the Emax
circuit-
> > > > > > board, so
> > > > > > > it's not a smiple matter of matching them up.
> > > > > > >
> > > > > > > Can anyone put me right? I only had this wonderful machine a
> > week
> > > > > > > before the power went. I've heard what it's capable of,
but now
> > I
> > > > > > left
> > > > > > > with a very sad, mute metal box.
> > > > > > >
> > > > > > > Here's hoping...
> > > > > > > Alan
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
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> > > > >
> > > > >
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> >
> >  
> >
> 
> 
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