Emax

Hi my name is johannes, I bought my emax 1994 secondhand and used eversince a lot. 
I am very happy that i found this board! I hope to be able to benefit from your wisdom.
Last month my psu failed, I learned from the board how to replace the old one with an atx 
standard device, that encouraged me a lot! Now i realy want the bring my emax I (keyboad) 
back to full funktionality! I want to eplace the faded display and i also want to do something 
with the buttons... since enter and up and down buttons are pretty num.
My data slider also is f...t up to... 
I read the post how to fix the buttons... ok
but what about the sliders? has anyone tried to fix these? 

I wonderd if its possible to replace the data slider with a digital rotary dial? 

all the best from berlin...

ps
I will tkae pictures from my restauration project and post them here.

--- In emax@yahoogroups.com, "calippolangnese" <calippolangnese@...>
wrote:
> the display requires some modifications to the pcb to use the new
lcd displays

 but you can fit them with led back lights of various colours

 the sliders can be replaced with the same ristance and size equivelents

the push buttons have to be de-soldered so you can move the prongs of
the grey button from the the bottom of the holder once removed

 you can clean the contacts with rubbing alcohol 

there is no replacement push buttons other than scavenging from
damaged keyboards and racks

 the power supply i am doing a new better switching psu design 
 and the prototype works great 

 i am just getting costing for a batch of pcb,s keep you posted
 
> Hi my name is johannes, I bought my emax 1994 secondhand and used
eversince a lot. 
> I am very happy that i found this board! I hope to be able to
benefit from your wisdom.
> Last month my psu failed, I learned from the board how to replace
the old one with an atx 
> standard device, that encouraged me a lot! Now i realy want the
bring my emax I (keyboad) 
> back to full funktionality! I want to eplace the faded display and i
also want to do something 
> with the buttons... since enter and up and down buttons are pretty num.
> My data slider also is f...t up to... 
> I read the post how to fix the buttons... ok
> but what about the sliders? has anyone tried to fix these? 
> 
> I wonderd if its possible to replace the data slider with a digital
rotary dial? 

> 
> all the best from berlin...
> 
> ps
> I will tkae pictures from my restauration project and post them here.
>

Buy the backlight from eBay and send the keyboard to a repair shop, they will have it ready in 
a few days with all the buttons and sliders working as well. If you try to do it yourself you will 
end up at the repair shop any way. Trust me.

Jammie-

On the PSU, are you incorporating any cooling so that the heat from PS would
be exhausted outside the keyboard or rack?

Just curious.

Regards,
Ted

On Wed, Jan 28, 2009 at 11:11 AM, jammie.emma
<jammie.emma@...>wrote:

>   --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "calippolangnese"
> <calippolangnese@...>
> wrote:
> > the display requires some modifications to the pcb to use the new
> lcd displays
>
> but you can fit them with led back lights of various colours
>
> the sliders can be replaced with the same ristance and size equivelents
>
> the push buttons have to be de-soldered so you can move the prongs of
> the grey button from the the bottom of the holder once removed
>
> you can clean the contacts with rubbing alcohol
>
> there is no replacement push buttons other than scavenging from
> damaged keyboards and racks
>
> the power supply i am doing a new better switching psu design
> and the prototype works great
>
> i am just getting costing for a batch of pcb,s keep you posted
>
> > Hi my name is johannes, I bought my emax 1994 secondhand and used
> eversince a lot.
> > I am very happy that i found this board! I hope to be able to
> benefit from your wisdom.
> > Last month my psu failed, I learned from the board how to replace
> the old one with an atx
> > standard device, that encouraged me a lot! Now i realy want the
> bring my emax I (keyboad)
> > back to full funktionality! I want to eplace the faded display and i
> also want to do something
> > with the buttons... since enter and up and down buttons are pretty num.
> > My data slider also is f...t up to...
> > I read the post how to fix the buttons... ok
> > but what about the sliders? has anyone tried to fix these?
> >
> > I wonderd if its possible to replace the data slider with a digital
> rotary dial?
> >
> > all the best from berlin...
> >
> > ps
> > I will tkae pictures from my restauration project and post them here.
> >
>
> 
>


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

--- In emax@yahoogroups.com, Ted Summers <djtbs1@...> wrote:
> no i have not just passive heat sinks on the power regulators

  the transformer is an toroidal and are quieter and more robust the 
  casing is very large in the emax 1 and the are loads of air vents

  i can incorporate cooling but this will ad noise which we dont want
with audio gear 

 i have incorporated spike surge suppressors and noise from mains
voltage also earth hum removal suppressors and inrush  current
limiters for the power switching
   
> Jammie-
> 
> On the PSU, are you incorporating any cooling so that the heat from
PS would
> be exhausted outside the keyboard or rack?
> 
> Just curious.
> 
> Regards,
> Ted
> 
> On Wed, Jan 28, 2009 at 11:11 AM, jammie.emma
> <jammie.emma@...>wrote:
> 
> >   --- In emax@yahoogroups.com <emax%40yahoogroups.com>,
"calippolangnese"
> > <calippolangnese@>
> > wrote:
> > > the display requires some modifications to the pcb to use the new
> > lcd displays
> >
> > but you can fit them with led back lights of various colours
> >
> > the sliders can be replaced with the same ristance and size
equivelents
> >
> > the push buttons have to be de-soldered so you can move the prongs of
> > the grey button from the the bottom of the holder once removed
> >
> > you can clean the contacts with rubbing alcohol
> >
> > there is no replacement push buttons other than scavenging from
> > damaged keyboards and racks
> >
> > the power supply i am doing a new better switching psu design
> > and the prototype works great
> >
> > i am just getting costing for a batch of pcb,s keep you posted
> >
> > > Hi my name is johannes, I bought my emax 1994 secondhand and used
> > eversince a lot.
> > > I am very happy that i found this board! I hope to be able to
> > benefit from your wisdom.
> > > Last month my psu failed, I learned from the board how to replace
> > the old one with an atx
> > > standard device, that encouraged me a lot! Now i realy want the
> > bring my emax I (keyboad)
> > > back to full funktionality! I want to eplace the faded display and i
> > also want to do something
> > > with the buttons... since enter and up and down buttons are
pretty num.
> > > My data slider also is f...t up to...
> > > I read the post how to fix the buttons... ok
> > > but what about the sliders? has anyone tried to fix these?
> > >
> > > I wonderd if its possible to replace the data slider with a digital
> > rotary dial?
> > >
> > > all the best from berlin...
> > >
> > > ps
> > > I will tkae pictures from my restauration project and post them
here.

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