Emax

Sounds very dangerous to perform that  desoldering.
Maybe we should simply try to enter the Diagnostics submenu 'adjust  
features' that contains a kind of challenge code response algorythm  
that could be easily decoded. Did somebody tried to check that option?
I wrote down the numbers but cant find any sense, they seem to be  
generared randomly, or am i wrong?
On the other hands, there was this online shop "soundlogic usa" in  
California that was selling Emax upgrade boards and that floppy back  
in the days. The website is still there, but has been rebuilt, you can  
still find upgrades for EIII and other brands.
On the news it says that Mike, soundlogic's owner, studios burned with  
the big fire in California a couple of years ago, maybe the floppies  
died in there, sounds like the Emax malediction :-))
Ok not so funny.

Laurent


Sent from an iPhone

Le 8 nov. 2009 à 16:08, "Everett" <evy_newt@...> a écrit :

> I'm curious, but maybe not THAT curious. I can't find those chips  
> anywhere either. It's only an 8 pin DIP though, so I have plenty of  
> those sockets lying around from various projects. It's only a 16 x  
> 16 bit array... seems like it wouldn't be able to hold too much  
> information. I guess they are just placeholders for options  
> installed? I'll check my programmer for support. I just have one of  
> those universal SIVAVA boards.
>
> --- In emax@yahoogroups.com, "tristanupton" <tu@...> wrote:
> >
> > You need the remove 9306 EEPROM, its a small 8 pin chip soldered  
> to the main board and designated IC24. You will need to desolder  
> this chip to read in your burner and then you will need to resolder  
> it back onto the main board. I suggest soldering an 8 pin DIP socket  
> in its place and then just inserting the EEPROM into the socket  
> rather than resoldering it direct to the board.
> >
> > If you are not 100% sure what you are doing and confident in your  
> soldering skills then I suggest not doing this. You run the risk of  
> damaging the EEPROM and then your Emax II may no longer recognise  
> the full memory or the stereo sampling. It is also possible you  
> could damage something else on the Emax main board during removal or  
> reinsertion of the chip. Also check whether your EPROM burner  
> actually supports 9306 series EEPROMs, some EPROM burners may not.
> >
> > /Tristan
> >
> > --- In emax@yahoogroups.com, "Everett" <evy_newt@> wrote:
> > >
> > > I can try to do this, but I'm a little nervous about killing my  
> box. If somebody can do a little more leg work before I crack into  
> the hardware I would feel a little better. I have an EPROM burner so  
> I would be able to produce a bin file for an 8MB machine. Let me  
> know which one is needed and if there is a risk of this disabling my  
> machine.
> > >
> > > Thanks...
> > > Everett
> > >
> > > --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> > > >
> > > > That makes more sense,I have never heard of the 27C64 being  
> reprogrammed in circuit. If anyone has a 6 or 8 meg machine, and can  
> read the eeprom, send me the .bin file, I have a spare 9306 I can  
> reprogram, to test in my machine. If it works, I'll see if I can get  
> a bunch of eeproms, and program them for 4/6/8 meg machines.
> > > >
> > > > --- In emax@yahoogroups.com, "esynthesist" <esynthesist@> wrote:
> > > > >
> > > > > I thought these configurations parameters (memory size,  
> calibration settings, ...) are written to the 9306 eeprom instead of  
> the two normal eproms. So I guess the eeproms must be reprogrammed,  
> not the eproms. Am I wrong ?
> > > > >
> > > > > ///E-Synthesist
> > > >
> > >
> >
>
> 


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