Emax

you can tell if its the switch mode psu as on the 1,s that are not have a 
set of red wire going to a switch at the back of the ,machine for  setting 
us voltage 100-110 and european and japanese voltage of 220-240

the trans formers have 2 110 volt incomming wires in the primary windings 
which are parrellel when wanting to make it 220-240 volts the red wire 
switch at the back switches a relay and changes the 2 110v lines into series 
110v +110v making 220-240 operation on the primary

thats why when setting the switch for voltage selection you need the machine 
off if not you can seriously damage the psu on the later models they use 
auto sensing voltage useing switching transisters and relays  you can use a 
emax 2 switch mode psu in a emax 1 you just dont have to connect the red 
wires going tro the selection switch
----- Original Message ----- 
From: "Ted Summers" <djtbs1@...>
To: <emax@yahoogroups.com>
Sent: Friday, November 06, 2009 5:24 PM
Subject: Re: [emax] Re: Emax II RIP?


> On the power supply itself my Emax has a 3 pin white header connector (2
> wires are populated in the connector- brown and blue). The connection was
> bad there.
>
> Regards,
> Ted
>
>
>
> On Fri, Nov 6, 2009 at 8:24 AM, Daniel Baum <daniel@...> wrote:
>
>>
>>
>> Hi Ted,
>>
>> Do you mean on the power supply itself or behind the power chord 
>> connector?
>>
>> I could easily replace the spade connectors behind the power cord
>> connector.
>> The only thing that I'm not sure about is whether the wires are long
>> enough.
>>
>> Replacing the connectors on the power supply sounds more involved (for 
>> me)
>>
>> The first thing to do I suppose is check for resistance in the power 
>> supply
>>
>> wires and see whether power is getting through (?)
>>
>> Rgds,
>>
>> D.
>>
>>
>> ----- Original Message -----
>> From: "Ted Summers" <djtbs1@... <djtbs1%40gmail.com>>
>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>>  Sent: Friday, November 06, 2009 4:20 PM
>> Subject: Re: [emax] Re: Emax II RIP?
>>
>> > My Emax 1 rack did similar and it was the connection to the AC "in" on
>> > the power supply.
>> > 1 leg of the AC wasn't getting through. I replace the power connection
>> > both sides (connector and pins on the wires) and voila!
>> >
>> > Regards.
>> > Ted
>> >
>> > On Nov 6, 2009, at 2:29 AM, Daniel Baum wrote:
>> >
>> > No, that's not it.
>> >
>> > All LEDs flash and click repeatedly and rapidly. Sometimes I see the
>> > screen flashing too but I don't leave it on long enough to find out
>> > what happens next . . .
>> >
>> > D.
>> >
>> > ----- Original Message -----
>> > From: emax_dx5
>> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>> > Sent: Friday, November 06, 2009 12:24 PM
>> > Subject: [emax] Re: Emax II RIP?
>> >
>> > If the symphtoms are:
>> >
>> > Good auto check (all leds flash once when you turn it on, then Analog
>> > Processing one is gone as the OS is loaded from disk).
>> >
>> > After it, All buttons and keys don't work.
>> >
>> > Then I would suggest the IM 386 (R1125) sub CPU processor.
>> >
>> > Best,,
>> > Emax DX5
>> >
>> > --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "Daniel Baum"
>> <daniel@...> wrote:
>> > >
>> > > Hi all,
>> > >
>> > > My Emax II keyboard seems to have had it.
>> > >
>> > > When I turn it on, all of the LEDs flash and click. I have not left
>> > it on
>> > > long enough to see what happens next. The actual catalyst for this
>> > seems to
>> > > have been that I moved the keyboard stand slightly so I could get
>> > to the
>> > > plugs at the back.
>> > >
>> > > I opened it up and nothing appears obviously loose or burnt. I
>> > removed the
>> > > spade connectors connecting the power supply to the wall, and
>> > removed a
>> > > small amount of corrosion. I also removed and reseated the other
>> > power
>> > > supply connectors.
>> > >
>> > > Just to see what would happen, I disconnected the hard disk.
>> > >
>> > > None of the above made any difference, so my Emax II is in very
>> > large paper
>> > > weight mode.
>> > >
>> > > This happened once before, and then stopped on its own. That time
>> > it was
>> > > also immediately after moving it, so it would appear there is
>> > something
>> > > loose.
>> > >
>> > > Has anyone encountered this and have an idea what it might be?
>> > >
>> > > Thanks,
>> > >
>> > > D.
>> > >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>>
>> >
>> > Emax and Emax II User's Group Website
>> >
>> > http://www.silveriafamily.comYahoo 
>> > <http://www.silveriafamily.comyahoo/>!
>> Groups Links
>> >
>> >
>> >
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>
>


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