Emax

>
> Im looking for one of those as well, my Emax lost his memory last week  
> after a cleaning session, very hard to find ZD413 floppies...
> 
> 
> Sent from an iPhone
> 
> Le 7 nov. 2009 à 05:30, "dwv1957" <dwv1957@...> a écrit :
> 
> > Does anyone know where I could get copies of the memory install  
> > disks (if they still exist) I have 2 memory expansion boards and a  
> > box of ram chips, and would like to upgrade my EmaxII
> >
> > 
> 
> 
> [Non-text portions of this message have been removed]
>

>
> Hi Everett
> If you could do that if would be great, how does this process work ?
> 
> 
> Sent from an iPhone
> 
> Le 7 nov. 2009 à 14:24, "Everett" <evy_newt@...> a écrit :
> 
> > If I understand correctly, these are special floppies that are  
> > basically extinct. I have a fully loaded EMAXII if there is a way to  
> > copy EPROMS I can probably do that for you. Let me know...
> >
> > Thanks,
> > Everett
> >
> > --- In emax@yahoogroups.com, Laurent/LIFELIKE <lifelike@> wrote:
> > >
> > > Im looking for one of those as well, my Emax lost his memory last  
> > week
> > > after a cleaning session, very hard to find ZD413 floppies...
> > >
> > >
> > > Sent from an iPhone
> > >
> > > Le 7 nov. 2009 à 05:30, "dwv1957" <dwv1957@> a écrit :
> > >
> > > > Does anyone know where I could get copies of the memory install
> > > > disks (if they still exist) I have 2 memory expansion boards and a
> > > > box of ram chips, and would like to upgrade my EmaxII
> > > >
> > > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> > 
> 
> 
> [Non-text portions of this message have been removed]
>

>
> It is quite simple, and should work if the EmaxII writes this info to the eproms, but it may write it to one of the PALs.
> The emaxII uses 2-27C64 eproms, I have eprom burners and erasers,and a box full of 27C64's, but I would need a functioning 4/6/8 meg EmaxII to read the eproms from, to test the theory with, or if someone has a 4/6/8 meg machine and an eprom burner, they could read the eproms, and send me the .bin or .hex file, and I could burn them to an eprom, and test it in my machine.
> 
> Dave
> 
> 
> --- In emax@yahoogroups.com, Laurent/LIFELIKE <lifelike@> wrote:
> >
> > Hi Everett
> > If you could do that if would be great, how does this process work ?
> > 
> > 
> > Sent from an iPhone
> > 
> > Le 7 nov. 2009 à 14:24, "Everett" <evy_newt@> a écrit :
> > 
> > > If I understand correctly, these are special floppies that are  
> > > basically extinct. I have a fully loaded EMAXII if there is a way to  
> > > copy EPROMS I can probably do that for you. Let me know...
> > >
> > > Thanks,
> > > Everett
> > >
> > > --- In emax@yahoogroups.com, Laurent/LIFELIKE <lifelike@> wrote:
> > > >
> > > > Im looking for one of those as well, my Emax lost his memory last  
> > > week
> > > > after a cleaning session, very hard to find ZD413 floppies...
> > > >
> > > >
> > > > Sent from an iPhone
> > > >
> > > > Le 7 nov. 2009 à 05:30, "dwv1957" <dwv1957@> a écrit :
> > > >
> > > > > Does anyone know where I could get copies of the memory install
> > > > > disks (if they still exist) I have 2 memory expansion boards and a
> > > > > box of ram chips, and would like to upgrade my EmaxII
> > > > >
> > > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> > > 
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
>

>
> 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

>
> 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
>

>
> 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
> >
>

>
> 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
> > >
> >
>

>
> Well, I don't have an Emax 2, but I believe i can safely remove and re- 
> install the 9306
> This chip is actually a National Semiconductor 93C06. its current 8  
> pin direct replacement is the 93C46 which is 30 cents at mouser.
> 
> My EEPROM programmer that makes the PALs for the SCSI upgrade has the  
> 93C06 and the 93C46  in the device list.
> 
> I have a static safe solder station and a PACE for safe successful  
> removal of the chip.
> If someone with Emax 2 models lives in the Washington / Oregon area I  
> would be willing to put my skills to use and pull the IC, place the  
> socket and read the IC.
> In preparation, we could get some 93C46 and verify that they actually  
> work in replacement for the 93C06, though since they are in the Cross- 
> reference I don't see any reason why they wouldn't.
> 
> That being said, anytime you touch a static sensitive device with a  
> soldering iron there is a *chance* of damage.
> But as far as minimizing risk, I am probably one of the people who has  
> all the equipment to have the most successful outcome.
> 
> I just don't have an Emax 2, or I would just test it out  
> myself.....Emax 2 is on my wish list when I have money. Even a dead  
> one- I might be able to bring back to life....
> 
> Regards,
> Ted
> 
> On Nov 8, 2009, at 9:24 AM, Laurent/LIFELIKE wrote:
> 
> 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
>  > > > >
>  > > >
>  > >
>  >
>  >
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

>
> There are clips manufactured for this purpose, actually. My concern  
> would be whether you would get corrupted data in circuit. and if you  
> had a bad one, I would expect you would still need to replace the IC.
> 
> Regards.
> Ted
> 
> On Nov 8, 2009, at 11:22 AM, esynthesist wrote:
> 
> Maybe it's the most stupid idea launched on this board (mea culpa) but  
> I was wondering whether an eeprom programmer can be connected to the  
> 9306 on the Emax-II itself by wire instead of desoldering the IC.
> 
> If that's possible, these wires could be connected (soldered  
> temporarily) to the Emax-II board (bottom side), or - OK, maybe even  
> more stupid - these wires could be put in the pin holders of an empty  
> 8 pin socket, and this socket could be temporarily put (taped) on top  
> of/around the 9306 IC in such way that it makes contact with the  
> 9306's pins.
> 
> Is this nonsense or can this be done ?
> (I'm not a hardware guy, but maybe I want to become one :-)
> 
> Note: I think we can indeed assume that this 9306 is the only chip  
> containing the crucial data for memory upgrades, stereo upgrades and  
> calibrations.
> Here is an extract from the diagnostics guide:
> (...)"Adjust Features -
> This function allows a technician in the field to restore software
> dependent features (such as memory size and stereo sampling) in
> cases where the EEPROM has been erased or damaged. If you
> have an Emax II that has forgotten what options it has, call the
> factory for instructions."(...)
> And here's an extract from the service manual:
> (...)"There is also a EEPROM which contains important non-volatile  
> information such as calibrations. The EEPROM is interfaced to the main  
> CPU using a bizzare combination of the floppy side select, the MIDI  
> off signal, a chip enable, and the MIDI interrupt lines."(...)
> 
> ///E-Synthesist
> 
> --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
>  >
>  > Well, I don't have an Emax 2, but I believe i can safely remove and  
> re-
>  > install the 9306
>  > This chip is actually a National Semiconductor 93C06. its current 8
>  > pin direct replacement is the 93C46 which is 30 cents at mouser.
>  >
>  > My EEPROM programmer that makes the PALs for the SCSI upgrade has the
>  > 93C06 and the 93C46 in the device list.
>  >
>  > I have a static safe solder station and a PACE for safe successful
>  > removal of the chip.
>  > If someone with Emax 2 models lives in the Washington / Oregon area I
>  > would be willing to put my skills to use and pull the IC, place the
>  > socket and read the IC.
>  > In preparation, we could get some 93C46 and verify that they actually
>  > work in replacement for the 93C06, though since they are in the  
> Cross-
>  > reference I don't see any reason why they wouldn't.
>  >
>  > That being said, anytime you touch a static sensitive device with a
>  > soldering iron there is a *chance* of damage.
>  > But as far as minimizing risk, I am probably one of the people who  
> has
>  > all the equipment to have the most successful outcome.
>  >
>  > I just don't have an Emax 2, or I would just test it out
>  > myself.....Emax 2 is on my wish list when I have money. Even a dead
>  > one- I might be able to bring back to life....
>  >
>  > Regards,
>  > Ted
>  >
>  > On Nov 8, 2009, at 9:24 AM, Laurent/LIFELIKE wrote:
>  >
>  > 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
>  > > > > >
>  > > > >
>  > > >
>  > >
>  > >
>  >
>  > [Non-text portions of this message have been removed]
>  >
>  >
>  >
>  >
>  >
>  > [Non-text portions of this message have been removed]
>  >
> 
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

>
> I see that there are at least 2 "programmed PALs" in each memory board upgrade kit inventory.  Does anyone know what these chips are and what information they contain?
> 
> Let's say we perform a mild miracle and successfully clone this 9306 EEPROM.  Wouldn't these chips need to be upgraded (installed?) as well?
>

>
> I am only saying that it might be that you won't get a valid data file  
> out of it due to it being in the board as opposed to being in the IC  
> holder on the EEPROM burner.
> You might get erroneous data.
> I would think you would only damage it if you accidentally shorted the  
> pins when using the clip.
> Or zapped it, plain and simple.
> This can be avoided by using static safe equipment during removal and  
> handling.
> 
> This would only work if you already had the upgrade prior, as I agree  
> with the statements regarding the PALs.
> If the PALs come on the memory upgrade board, then it is a non issue-  
> however if you want to add memory and don't have the board....
> 
> So two scenarios- look at the PAL IP#s to see if the same PALs are  
> used on all the upgrade boards (2,4,8). If the same PAL, then they  
> aren't locking the memory size, beyond telling the system to address  
> the expansion board.
> 
> If different PALs in every model, we would need PAL binaries, and the  
> 9306 versions from each type....
> 
> Maybe Rob at Emulator Archive could sweet talk the guys at E-Mu to get  
> those PAL binariess too.
> If so, then someone could send me the files and I would see if my  
> resources could (once again) help me to convert the original files to  
> make new chips.
> The Emax 1 SCSI PAL binaries were in a non-standard format...only the  
> original programmer module could be used with them, and Emu didn't  
> divulge what the programmer was.....hence the necessary conversion.
> 
> What PAL IC are they? are they the same PAL16R4? If so, I got 140 NOS  
> of them.
> But without an Emax 2, I couldn't test / verify them.
> 
> Just my thoughts,
> Ted
>

>
> oooh, I2C eeprom.
> 
> I just looked about and found the Atmel datasheet for their 93c46, and
> an old microchip datasheet for their version of the 06/46. 
> 
> If this is newer atmel part is representative of other modern 93c46
> parts, to make the 46 work in place of the 06 you might have to make a
> change - pin 6 is now a memory organisation pin, and you'll need to pull
> that to VCC in order to make this chip run in x16 memory organisation.
> 
> 
> apart from that - reading and writing I2C eeprom is pretty trivial and
> works in a standard way across all devices. if worst comes to worst you
> can do it with a standard microcontroller dev board and some off the
> shelf code.... 
> 
> -- 
> http://bleepin.com
> 
> -- 
> http://www.fastmail.fm - Same, same, but different...
>

>
> That's only partially right, there are 3 versions of the 93C46
> 93C46A is 8 bit
> 93C46B is 16 bit
> 93C46C is selectable 8/16 bit, and is the only one that requires the ORG pin.
> the 93C46B is a direct replacement for the 93C06
> 
> Dave
> 
> 
> --- In emax@yahoogroups.com, "Julian" <jujulilianan@> wrote:
> >
> > oooh, I2C eeprom.
> > 
> > I just looked about and found the Atmel datasheet for their 93c46, and
> > an old microchip datasheet for their version of the 06/46. 
> > 
> > If this is newer atmel part is representative of other modern 93c46
> > parts, to make the 46 work in place of the 06 you might have to make a
> > change - pin 6 is now a memory organisation pin, and you'll need to pull
> > that to VCC in order to make this chip run in x16 memory organisation.
> > 
> > 
> > apart from that - reading and writing I2C eeprom is pretty trivial and
> > works in a standard way across all devices. if worst comes to worst you
> > can do it with a standard microcontroller dev board and some off the
> > shelf code.... 
> > 
> > -- 
> > http://bleepin.com
> > 
> > -- 
> > http://www.fastmail.fm - Same, same, but different...
> >
>

On Sat, Nov 14th, 2009 at 10:46 AM, Everett <evy_newt@...> wrote:

> Alright everybody, I took the plunge... have at it.  I will upload
> the BIN to the files section.
> 
> EMAX II it came from:
> Model 2213
> SN: 01200659
> 
> Main Board: PC360 REV C
> SN: 900428
> 
> Upgrade Board: PC357 REV B (fully loaded)
> 
> Hopefully someone can put this info to good use.  I have ordered a
> few 9346s and sockets.  I'd be glad to burn a few and send them out
> if someone needs them.
> 
> Everett
> 
> --- In emax@yahoogroups.com, "dwv1957" <dwv1957@...> wrote:
> >
> > That's only partially right, there are 3 versions of the 93C46
> > 93C46A is 8 bit
> > 93C46B is 16 bit
> > 93C46C is selectable 8/16 bit, and is the only one that requires
> the ORG pin.
> > the 93C46B is a direct replacement for the 93C06
> > 
> > Dave
> > 
> > 
> > --- In emax@yahoogroups.com, "Julian" <jujulilianan@> wrote:
> > >
> > > oooh, I2C eeprom.
> > > 
> > > I just looked about and found the Atmel datasheet for their
> 93c46, and
> > > an old microchip datasheet for their version of the 06/46. 
> > > 
> > > If this is newer atmel part is representative of other modern
> 93c46
> > > parts, to make the 46 work in place of the 06 you might have to
> make a
> > > change - pin 6 is now a memory organisation pin, and you'll need
> to pull
> > > that to VCC in order to make this chip run in x16 memory
> organisation.
> > > 
> > > 
> > > apart from that - reading and writing I2C eeprom is pretty
> trivial and
> > > works in a standard way across all devices. if worst comes to
> worst you
> > > can do it with a standard microcontroller dev board and some off
> the
> > > shelf code.... 
> > > 
> > > -- 
> > > http://bleepin.com
> > > 
> > > -- 
> > > http://www.fastmail.fm - Same, same, but different...
> > >
> >
> 
> 
>

>
> Alright everybody, I took the plunge... have at it.  I will upload the BIN to the files section.
> 
> EMAX II it came from:
> Model 2213
> SN: 01200659
> 
> Main Board: PC360 REV C
> SN: 900428
> 
> Upgrade Board: PC357 REV B (fully loaded)
> 
> Hopefully someone can put this info to good use.  I have ordered a few 9346s and sockets.  I'd be glad to burn a few and send them out if someone needs them.
> 
> Everett
> 
> --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> >
> > That's only partially right, there are 3 versions of the 93C46
> > 93C46A is 8 bit
> > 93C46B is 16 bit
> > 93C46C is selectable 8/16 bit, and is the only one that requires the ORG pin.
> > the 93C46B is a direct replacement for the 93C06
> > 
> > Dave
> > 
> > 
> > --- In emax@yahoogroups.com, "Julian" <jujulilianan@> wrote:
> > >
> > > oooh, I2C eeprom.
> > > 
> > > I just looked about and found the Atmel datasheet for their 93c46, and
> > > an old microchip datasheet for their version of the 06/46. 
> > > 
> > > If this is newer atmel part is representative of other modern 93c46
> > > parts, to make the 46 work in place of the 06 you might have to make a
> > > change - pin 6 is now a memory organisation pin, and you'll need to pull
> > > that to VCC in order to make this chip run in x16 memory organisation.
> > > 
> > > 
> > > apart from that - reading and writing I2C eeprom is pretty trivial and
> > > works in a standard way across all devices. if worst comes to worst you
> > > can do it with a standard microcontroller dev board and some off the
> > > shelf code.... 
> > > 
> > > -- 
> > > http://bleepin.com
> > > 
> > > -- 
> > > http://www.fastmail.fm - Same, same, but different...
> > >
> >
>

>
> Does your Emax II have stereo or mono sampling?
> 
> /Tristan
> 
> On Sat, Nov 14th, 2009 at 10:46 AM, Everett <evy_newt@...> wrote:
> 
> > Alright everybody, I took the plunge... have at it.  I will upload
> > the BIN to the files section.
> > 
> > EMAX II it came from:
> > Model 2213
> > SN: 01200659
> > 
> > Main Board: PC360 REV C
> > SN: 900428
> > 
> > Upgrade Board: PC357 REV B (fully loaded)
> > 
> > Hopefully someone can put this info to good use.  I have ordered a
> > few 9346s and sockets.  I'd be glad to burn a few and send them out
> > if someone needs them.
> > 
> > Everett
> > 
> > --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> > >
> > > That's only partially right, there are 3 versions of the 93C46
> > > 93C46A is 8 bit
> > > 93C46B is 16 bit
> > > 93C46C is selectable 8/16 bit, and is the only one that requires
> > the ORG pin.
> > > the 93C46B is a direct replacement for the 93C06
> > > 
> > > Dave
> > > 
> > > 
> > > --- In emax@yahoogroups.com, "Julian" <jujulilianan@> wrote:
> > > >
> > > > oooh, I2C eeprom.
> > > > 
> > > > I just looked about and found the Atmel datasheet for their
> > 93c46, and
> > > > an old microchip datasheet for their version of the 06/46. 
> > > > 
> > > > If this is newer atmel part is representative of other modern
> > 93c46
> > > > parts, to make the 46 work in place of the 06 you might have to
> > make a
> > > > change - pin 6 is now a memory organisation pin, and you'll need
> > to pull
> > > > that to VCC in order to make this chip run in x16 memory
> > organisation.
> > > > 
> > > > 
> > > > apart from that - reading and writing I2C eeprom is pretty
> > trivial and
> > > > works in a standard way across all devices. if worst comes to
> > worst you
> > > > can do it with a standard microcontroller dev board and some off
> > the
> > > > shelf code.... 
> > > > 
> > > > -- 
> > > > http://bleepin.com
> > > > 
> > > > -- 
> > > > http://www.fastmail.fm - Same, same, but different...
> > > >
> > >
> > 
> > 
> >
>

>
> This is great.
> Thanks.
> 
> Maybe I'll be able to upload some of those bins in the future for 4MB and 2MB versions too (all stereo). I don't have the eeprom reader yet...
> 
> We should all be aware of course that this BIN also contains the calibration settings of the "donor" Emax-II, so these might have to be adapted once the BIN has been written to the "target" Emax-II.
> 
> Thanks !!
> 
> ///E-Synthesist
> 
> --- In emax@yahoogroups.com, "Everett" <evy_newt@> wrote:
> >
> > Alright everybody, I took the plunge... have at it.  I will upload the BIN to the files section.
> > 
> > EMAX II it came from:
> > Model 2213
> > SN: 01200659
> > 
> > Main Board: PC360 REV C
> > SN: 900428
> > 
> > Upgrade Board: PC357 REV B (fully loaded)
> > 
> > Hopefully someone can put this info to good use.  I have ordered a few 9346s and sockets.  I'd be glad to burn a few and send them out if someone needs them.
> > 
> > Everett
> > 
> > --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> > >
> > > That's only partially right, there are 3 versions of the 93C46
> > > 93C46A is 8 bit
> > > 93C46B is 16 bit
> > > 93C46C is selectable 8/16 bit, and is the only one that requires the ORG pin.
> > > the 93C46B is a direct replacement for the 93C06
> > > 
> > > Dave
> > > 
> > > 
> > > --- In emax@yahoogroups.com, "Julian" <jujulilianan@> wrote:
> > > >
> > > > oooh, I2C eeprom.
> > > > 
> > > > I just looked about and found the Atmel datasheet for their 93c46, and
> > > > an old microchip datasheet for their version of the 06/46. 
> > > > 
> > > > If this is newer atmel part is representative of other modern 93c46
> > > > parts, to make the 46 work in place of the 06 you might have to make a
> > > > change - pin 6 is now a memory organisation pin, and you'll need to pull
> > > > that to VCC in order to make this chip run in x16 memory organisation.
> > > > 
> > > > 
> > > > apart from that - reading and writing I2C eeprom is pretty trivial and
> > > > works in a standard way across all devices. if worst comes to worst you
> > > > can do it with a standard microcontroller dev board and some off the
> > > > shelf code.... 
> > > > 
> > > > -- 
> > > > http://bleepin.com
> > > > 
> > > > -- 
> > > > http://www.fastmail.fm - Same, same, but different...
> > > >
> > >
> >
>

On Sun, Nov 15th, 2009 at 12:32 AM, Everett <evy_newt@...> wrote:

> It has Stereo Sampling.  I thought that was part of the upgrade?
> 
> --- In emax@yahoogroups.com, tu@... wrote:
> >
> > Does your Emax II have stereo or mono sampling?
> > 
> > /Tristan
> > 
> > On Sat, Nov 14th, 2009 at 10:46 AM, Everett <evy_newt@...> wrote:
> > 
> > > Alright everybody, I took the plunge... have at it.  I will
> upload
> > > the BIN to the files section.
> > > 
> > > EMAX II it came from:
> > > Model 2213
> > > SN: 01200659
> > > 
> > > Main Board: PC360 REV C
> > > SN: 900428
> > > 
> > > Upgrade Board: PC357 REV B (fully loaded)
> > > 
> > > Hopefully someone can put this info to good use.  I have ordered
> a
> > > few 9346s and sockets.  I'd be glad to burn a few and send them
> out
> > > if someone needs them.
> > > 
> > > Everett
> > > 
> > > --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> > > >
> > > > That's only partially right, there are 3 versions of the 93C46
> > > > 93C46A is 8 bit
> > > > 93C46B is 16 bit
> > > > 93C46C is selectable 8/16 bit, and is the only one that
> requires
> > > the ORG pin.
> > > > the 93C46B is a direct replacement for the 93C06
> > > > 
> > > > Dave
> > > > 
> > > > 
> > > > --- In emax@yahoogroups.com, "Julian" <jujulilianan@> wrote:
> > > > >
> > > > > oooh, I2C eeprom.
> > > > > 
> > > > > I just looked about and found the Atmel datasheet for their
> > > 93c46, and
> > > > > an old microchip datasheet for their version of the 06/46. 
> > > > > 
> > > > > If this is newer atmel part is representative of other
> modern
> > > 93c46
> > > > > parts, to make the 46 work in place of the 06 you might have
> to
> > > make a
> > > > > change - pin 6 is now a memory organisation pin, and you'll
> need
> > > to pull
> > > > > that to VCC in order to make this chip run in x16 memory
> > > organisation.
> > > > > 
> > > > > 
> > > > > apart from that - reading and writing I2C eeprom is pretty
> > > trivial and
> > > > > works in a standard way across all devices. if worst comes
> to
> > > worst you
> > > > > can do it with a standard microcontroller dev board and some
> off
> > > the
> > > > > shelf code.... 
> > > > > 
> > > > > -- 
> > > > > http://bleepin.com
> > > > > 
> > > > > -- 
> > > > > http://www.fastmail.fm - Same, same, but different...
> > > > >
> > > >
> > > 
> > > 
> > >
> >
> 
> 
>

>
> I was just wondering because I have seen many different Emax II configurations. Stereo sampling 
> upgrades were separate from RAM upgrades and the model number does not always match with 
> what should be inside.
> 
> /Tristan
> 
> On Sun, Nov 15th, 2009 at 12:32 AM, Everett <evy_newt@...> wrote:
> 
> > It has Stereo Sampling.  I thought that was part of the upgrade?
> > 
> > --- In emax@yahoogroups.com, tu@ wrote:
> > >
> > > Does your Emax II have stereo or mono sampling?
> > > 
> > > /Tristan
> > > 
> > > On Sat, Nov 14th, 2009 at 10:46 AM, Everett <evy_newt@> wrote:
> > > 
> > > > Alright everybody, I took the plunge... have at it.  I will
> > upload
> > > > the BIN to the files section.
> > > > 
> > > > EMAX II it came from:
> > > > Model 2213
> > > > SN: 01200659
> > > > 
> > > > Main Board: PC360 REV C
> > > > SN: 900428
> > > > 
> > > > Upgrade Board: PC357 REV B (fully loaded)
> > > > 
> > > > Hopefully someone can put this info to good use.  I have ordered
> > a
> > > > few 9346s and sockets.  I'd be glad to burn a few and send them
> > out
> > > > if someone needs them.
> > > > 
> > > > Everett
> > > > 
> > > > --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> > > > >
> > > > > That's only partially right, there are 3 versions of the 93C46
> > > > > 93C46A is 8 bit
> > > > > 93C46B is 16 bit
> > > > > 93C46C is selectable 8/16 bit, and is the only one that
> > requires
> > > > the ORG pin.
> > > > > the 93C46B is a direct replacement for the 93C06
> > > > > 
> > > > > Dave
> > > > > 
> > > > > 
> > > > > --- In emax@yahoogroups.com, "Julian" <jujulilianan@> wrote:
> > > > > >
> > > > > > oooh, I2C eeprom.
> > > > > > 
> > > > > > I just looked about and found the Atmel datasheet for their
> > > > 93c46, and
> > > > > > an old microchip datasheet for their version of the 06/46. 
> > > > > > 
> > > > > > If this is newer atmel part is representative of other
> > modern
> > > > 93c46
> > > > > > parts, to make the 46 work in place of the 06 you might have
> > to
> > > > make a
> > > > > > change - pin 6 is now a memory organisation pin, and you'll
> > need
> > > > to pull
> > > > > > that to VCC in order to make this chip run in x16 memory
> > > > organisation.
> > > > > > 
> > > > > > 
> > > > > > apart from that - reading and writing I2C eeprom is pretty
> > > > trivial and
> > > > > > works in a standard way across all devices. if worst comes
> > to
> > > > worst you
> > > > > > can do it with a standard microcontroller dev board and some
> > off
> > > > the
> > > > > > shelf code.... 
> > > > > > 
> > > > > > -- 
> > > > > > http://bleepin.com
> > > > > > 
> > > > > > -- 
> > > > > > http://www.fastmail.fm - Same, same, but different...
> > > > > >
> > > > >
> > > > 
> > > > 
> > > >
> > >
> > 
> > 
> >
>

----- Original Message ----- 
From: "Everett" <evy_newt@yahoo.com> 
To: emax@yahoogroups.com 
Sent: Monday, November 16, 2009 10:24:31 PM GMT -05:00 US/Canada Eastern 
Subject: [emax] Re: Memory Upgrades 






I'd just like to report a success in using a chip burned with the 93C06N image I uploaded and a 93C46B chip. At first I was sweating because it gave me a memory error on bootup and only showed me 6 or 7 Megs! I just went back in and re-seated the memory expansion board and now all is well, whew! That thing is really not supported too well on the underside of those connectors so you have to push harder than you'd probably like to. 

Thanks to all that lead me in the right direction, and I hope someone else can save another EMAX with this. 

Everett 

--- In emax@yahoogroups.com , tu@... wrote: 
> 
> I was just wondering because I have seen many different Emax II configurations. Stereo sampling 
> upgrades were separate from RAM upgrades and the model number does not always match with 
> what should be inside. 
> 
> /Tristan 
> 
> On Sun, Nov 15th, 2009 at 12:32 AM, Everett <evy_newt@...> wrote: 
> 
> > It has Stereo Sampling. I thought that was part of the upgrade? 
> > 
> > --- In emax@yahoogroups.com , tu@ wrote: 
> > > 
> > > Does your Emax II have stereo or mono sampling? 
> > > 
> > > /Tristan 
> > > 
> > > On Sat, Nov 14th, 2009 at 10:46 AM, Everett <evy_newt@> wrote: 
> > > 
> > > > Alright everybody, I took the plunge... have at it. I will 
> > upload 
> > > > the BIN to the files section. 
> > > > 
> > > > EMAX II it came from: 
> > > > Model 2213 
> > > > SN: 01200659 
> > > > 
> > > > Main Board: PC360 REV C 
> > > > SN: 900428 
> > > > 
> > > > Upgrade Board: PC357 REV B (fully loaded) 
> > > > 
> > > > Hopefully someone can put this info to good use. I have ordered 
> > a 
> > > > few 9346s and sockets. I'd be glad to burn a few and send them 
> > out 
> > > > if someone needs them. 
> > > > 
> > > > Everett 
> > > > 
> > > > --- In emax@yahoogroups.com , "dwv1957" <dwv1957@> wrote: 
> > > > > 
> > > > > That's only partially right, there are 3 versions of the 93C46 
> > > > > 93C46A is 8 bit 
> > > > > 93C46B is 16 bit 
> > > > > 93C46C is selectable 8/16 bit, and is the only one that 
> > requires 
> > > > the ORG pin. 
> > > > > the 93C46B is a direct replacement for the 93C06 
> > > > > 
> > > > > Dave 
> > > > > 
> > > > > 
> > > > > --- In emax@yahoogroups.com , "Julian" <jujulilianan@> wrote: 
> > > > > > 
> > > > > > oooh, I2C eeprom. 
> > > > > > 
> > > > > > I just looked about and found the Atmel datasheet for their 
> > > > 93c46, and 
> > > > > > an old microchip datasheet for their version of the 06/46. 
> > > > > > 
> > > > > > If this is newer atmel part is representative of other 
> > modern 
> > > > 93c46 
> > > > > > parts, to make the 46 work in place of the 06 you might have 
> > to 
> > > > make a 
> > > > > > change - pin 6 is now a memory organisation pin, and you'll 
> > need 
> > > > to pull 
> > > > > > that to VCC in order to make this chip run in x16 memory 
> > > > organisation. 
> > > > > > 
> > > > > > 
> > > > > > apart from that - reading and writing I2C eeprom is pretty 
> > > > trivial and 
> > > > > > works in a standard way across all devices. if worst comes 
> > to 
> > > > worst you 
> > > > > > can do it with a standard microcontroller dev board and some 
> > off 
> > > > the 
> > > > > > shelf code.... 
> > > > > > 
> > > > > > -- 
> > > > > > http://bleepin.com 
> > > > > > 
> > > > > > -- 
> > > > > > http://www.fastmail.fm - Same, same, but different... 
> > > > > > 
> > > > > 
> > > > 
> > > > 
> > > > 
> > > 
> > 
> > 
> > 
> 




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

>
> Hi, a m I understanding you right that you've installed a memory upgrade WITHOUT that extinct floppy disk? 
> 
> 
> Sorry if I didn't get everything that was going on in this thread. 
> 
> 
> I've got 8 Megs awaiting install and a missing floppy. 
> 
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "Everett" <evy_newt@...> 
> To: emax@yahoogroups.com 
> Sent: Monday, November 16, 2009 10:24:31 PM GMT -05:00 US/Canada Eastern 
> Subject: [emax] Re: Memory Upgrades 
> 
> 
> 
> 
> 
> 
> I'd just like to report a success in using a chip burned with the 93C06N image I uploaded and a 93C46B chip. At first I was sweating because it gave me a memory error on bootup and only showed me 6 or 7 Megs! I just went back in and re-seated the memory expansion board and now all is well, whew! That thing is really not supported too well on the underside of those connectors so you have to push harder than you'd probably like to. 
> 
> Thanks to all that lead me in the right direction, and I hope someone else can save another EMAX with this. 
> 
> Everett 
> 
> --- In emax@yahoogroups.com , tu@ wrote: 
> > 
> > I was just wondering because I have seen many different Emax II configurations. Stereo sampling 
> > upgrades were separate from RAM upgrades and the model number does not always match with 
> > what should be inside. 
> > 
> > /Tristan 
> > 
> > On Sun, Nov 15th, 2009 at 12:32 AM, Everett <evy_newt@> wrote: 
> > 
> > > It has Stereo Sampling. I thought that was part of the upgrade? 
> > > 
> > > --- In emax@yahoogroups.com , tu@ wrote: 
> > > > 
> > > > Does your Emax II have stereo or mono sampling? 
> > > > 
> > > > /Tristan 
> > > > 
> > > > On Sat, Nov 14th, 2009 at 10:46 AM, Everett <evy_newt@> wrote: 
> > > > 
> > > > > Alright everybody, I took the plunge... have at it. I will 
> > > upload 
> > > > > the BIN to the files section. 
> > > > > 
> > > > > EMAX II it came from: 
> > > > > Model 2213 
> > > > > SN: 01200659 
> > > > > 
> > > > > Main Board: PC360 REV C 
> > > > > SN: 900428 
> > > > > 
> > > > > Upgrade Board: PC357 REV B (fully loaded) 
> > > > > 
> > > > > Hopefully someone can put this info to good use. I have ordered 
> > > a 
> > > > > few 9346s and sockets. I'd be glad to burn a few and send them 
> > > out 
> > > > > if someone needs them. 
> > > > > 
> > > > > Everett 
> > > > > 
> > > > > --- In emax@yahoogroups.com , "dwv1957" <dwv1957@> wrote: 
> > > > > > 
> > > > > > That's only partially right, there are 3 versions of the 93C46 
> > > > > > 93C46A is 8 bit 
> > > > > > 93C46B is 16 bit 
> > > > > > 93C46C is selectable 8/16 bit, and is the only one that 
> > > requires 
> > > > > the ORG pin. 
> > > > > > the 93C46B is a direct replacement for the 93C06 
> > > > > > 
> > > > > > Dave 
> > > > > > 
> > > > > > 
> > > > > > --- In emax@yahoogroups.com , "Julian" <jujulilianan@> wrote: 
> > > > > > > 
> > > > > > > oooh, I2C eeprom. 
> > > > > > > 
> > > > > > > I just looked about and found the Atmel datasheet for their 
> > > > > 93c46, and 
> > > > > > > an old microchip datasheet for their version of the 06/46. 
> > > > > > > 
> > > > > > > If this is newer atmel part is representative of other 
> > > modern 
> > > > > 93c46 
> > > > > > > parts, to make the 46 work in place of the 06 you might have 
> > > to 
> > > > > make a 
> > > > > > > change - pin 6 is now a memory organisation pin, and you'll 
> > > need 
> > > > > to pull 
> > > > > > > that to VCC in order to make this chip run in x16 memory 
> > > > > organisation. 
> > > > > > > 
> > > > > > > 
> > > > > > > apart from that - reading and writing I2C eeprom is pretty 
> > > > > trivial and 
> > > > > > > works in a standard way across all devices. if worst comes 
> > > to 
> > > > > worst you 
> > > > > > > can do it with a standard microcontroller dev board and some 
> > > off 
> > > > > the 
> > > > > > > shelf code.... 
> > > > > > > 
> > > > > > > -- 
> > > > > > > http://bleepin.com 
> > > > > > > 
> > > > > > > -- 
> > > > > > > http://www.fastmail.fm - Same, same, but different... 
> > > > > > > 
> > > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > 
> > > 
> > > 
> > > 
> > 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

>
> Just a note to let everyone know, you can upgrade the memory of your EmaxII by changing the EEprom.
> I took the eeprom out of an 8 meg emaxII read it to a .bin file, and then burned the image to a new eeprom, then I fully populated the memory expansion board in my 4 meg machine and plugged in the new eeprom, and everything works perfectly. I also did images of 4mb and 6mb emaxII's and tested them with different configurations and everything seems to be working fine.
> This will only work with 2 meg emax's, the original 1 meg emax's use different PALs, I could probably upgrade the 1 meg machines, but I would need the main board and expansion board to do it.
> The biggest problem you will have is finding enough 44256 memory chips to populate the expansion board with.
> I can supply the burned eeproms for $10 +shipping, if your not comfortable desoldering the old eeprom, I can do it for you, I don't need the whole machine, just the main board and expansion board, if interested, contact me off list.
> 
> Dave
>

>
> Just a note to let everyone know, you can upgrade the memory of your EmaxII by changing the EEprom.
> I took the eeprom out of an 8 meg emaxII read it to a .bin file, and then burned the image to a new eeprom, then I fully populated the memory expansion board in my 4 meg machine and plugged in the new eeprom, and everything works perfectly. I also did images of 4mb and 6mb emaxII's and tested them with different configurations and everything seems to be working fine.
> This will only work with 2 meg emax's, the original 1 meg emax's use different PALs, I could probably upgrade the 1 meg machines, but I would need the main board and expansion board to do it.
> The biggest problem you will have is finding enough 44256 memory chips to populate the expansion board with.
> I can supply the burned eeproms for $10 +shipping, if your not comfortable desoldering the old eeprom, I can do it for you, I don't need the whole machine, just the main board and expansion board, if interested, contact me off list.
> 
> Dave
>

>
> I believe what the Memory Upgrade people are saying is:
> 
> 1) If you have "scrambled megs" and your emax 2 doesn't see all your  
> memory, then they have a fix
> 2) If you have a expansion board, and it is not full, you now have an  
> inexpensive way to fill it up the rest of the way and get a chip so  
> emax2 sees the added memory now.
> 
> But I don't think they are saying they are duplicating the Expansion  
> board at all.... you must already have an expansion board.
> 
> 
> 
> On Nov 26, 2009, at 6:36 PM, Reinaldo wrote:
> 
> So...
> 
> I can download the file and burn a new eprom chip for my emax II.
> 
> Then I can buy the memory chips on eBay.
> 
> But I need the expansion board!
> 
> How do I do without expansion board then?
> 
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

>
> Yeah I was all hopeful until I opened my Emax II up and saw that I don't have the board, just an empty space where it looks like there are enough places to solder in sockets to get the Emax II up to 12 megs.  I have 4 already (16 chips) and there are 32 spaces available.  Does anyone think that actually soldering in another 16 sockets would be the same as adding an expansion board?
> 
> --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> >
> > I believe what the Memory Upgrade people are saying is:
> > 
> > 1) If you have "scrambled megs" and your emax 2 doesn't see all your  
> > memory, then they have a fix
> > 2) If you have a expansion board, and it is not full, you now have an  
> > inexpensive way to fill it up the rest of the way and get a chip so  
> > emax2 sees the added memory now.
> > 
> > But I don't think they are saying they are duplicating the Expansion  
> > board at all.... you must already have an expansion board.
> > 
> > 
> > 
> > On Nov 26, 2009, at 6:36 PM, Reinaldo wrote:
> > 
> > So...
> > 
> > I can download the file and burn a new eprom chip for my emax II.
> > 
> > Then I can buy the memory chips on eBay.
> > 
> > But I need the expansion board!
> > 
> > How do I do without expansion board then?
> > 
> > 
> > 
> > 
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
>

>
> My expanded EMAX actually only has a portion of the sockets filled on the main board.  I believe the writeup on emulator archive goes through why in more detail.  I believe someone else stated that the PALs are different on the models with the board installed.  The upgrade kit inventory shows these PAL chips in there, so that makes sense.
> 
> --- In emax@yahoogroups.com, "thenewyorkcowboy" <thenewyorkcowboy@> wrote:
> >
> > Yeah I was all hopeful until I opened my Emax II up and saw that I don't have the board, just an empty space where it looks like there are enough places to solder in sockets to get the Emax II up to 12 megs.  I have 4 already (16 chips) and there are 32 spaces available.  Does anyone think that actually soldering in another 16 sockets would be the same as adding an expansion board?
> > 
> > --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> > >
> > > I believe what the Memory Upgrade people are saying is:
> > > 
> > > 1) If you have "scrambled megs" and your emax 2 doesn't see all your  
> > > memory, then they have a fix
> > > 2) If you have a expansion board, and it is not full, you now have an  
> > > inexpensive way to fill it up the rest of the way and get a chip so  
> > > emax2 sees the added memory now.
> > > 
> > > But I don't think they are saying they are duplicating the Expansion  
> > > board at all.... you must already have an expansion board.
> > > 
> > > 
> > > 
> > > On Nov 26, 2009, at 6:36 PM, Reinaldo wrote:
> > > 
> > > So...
> > > 
> > > I can download the file and burn a new eprom chip for my emax II.
> > > 
> > > Then I can buy the memory chips on eBay.
> > > 
> > > But I need the expansion board!
> > > 
> > > How do I do without expansion board then?
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > [Non-text portions of this message have been removed]
> > >
> >
>

>
> Ah!  I finally figured it out.  I did more research and my model, the 2212 is only a 2mb which I verified by Master 4,Y,2, and got 1048488.  Here I had been doing improper math but with the Emax II Diagnostics.pdf I came to this conclusion.  Bad for me!  But now I need to find someone that has a late model 2205 with 8mb and find out if the factory installed all the memory on the mainboard or did they also use two 2208 kits to get to 8mb.  That would provide the solution whether or not the mainboard slots could be populated with sockets and chips.
> 
> --- In emax@yahoogroups.com, "Everett" <evy_newt@> wrote:
> >
> > My expanded EMAX actually only has a portion of the sockets filled on the main board.  I believe the writeup on emulator archive goes through why in more detail.  I believe someone else stated that the PALs are different on the models with the board installed.  The upgrade kit inventory shows these PAL chips in there, so that makes sense.
> > 
> > --- In emax@yahoogroups.com, "thenewyorkcowboy" <thenewyorkcowboy@> wrote:
> > >
> > > Yeah I was all hopeful until I opened my Emax II up and saw that I don't have the board, just an empty space where it looks like there are enough places to solder in sockets to get the Emax II up to 12 megs.  I have 4 already (16 chips) and there are 32 spaces available.  Does anyone think that actually soldering in another 16 sockets would be the same as adding an expansion board?
> > > 
> > > --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> > > >
> > > > I believe what the Memory Upgrade people are saying is:
> > > > 
> > > > 1) If you have "scrambled megs" and your emax 2 doesn't see all your  
> > > > memory, then they have a fix
> > > > 2) If you have a expansion board, and it is not full, you now have an  
> > > > inexpensive way to fill it up the rest of the way and get a chip so  
> > > > emax2 sees the added memory now.
> > > > 
> > > > But I don't think they are saying they are duplicating the Expansion  
> > > > board at all.... you must already have an expansion board.
> > > > 
> > > > 
> > > > 
> > > > On Nov 26, 2009, at 6:36 PM, Reinaldo wrote:
> > > > 
> > > > So...
> > > > 
> > > > I can download the file and burn a new eprom chip for my emax II.
> > > > 
> > > > Then I can buy the memory chips on eBay.
> > > > 
> > > > But I need the expansion board!
> > > > 
> > > > How do I do without expansion board then?
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
>

> > > 
> > > --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> > > >
> > > > I believe what the Memory Upgrade people are saying is:
> > > > 
> > > > 1) If you have "scrambled megs" and your emax 2 doesn't see all your 
> > > > memory, then they have a fix
> > > > 2) If you have a expansion board, and it is not full, you now have an 
> > > > inexpensive way to fill it up the rest of the way and get a chip so 
> > > > emax2 sees the added memory now.
> > > > 
> > > > But I don't think they are saying they are duplicating the Expansion 
> > > > board at all.... you must already have an expansion board.
> > > > 
> > > > 
> > > > 
> > > > On Nov 26, 2009, at 6:36 PM, Reinaldo wrote:
> > > > 
> > > > So...
> > > > 
> > > > I can download the file and burn a new eprom chip for my emax II.
> > > > 
> > > > Then I can buy the memory chips on eBay.
> > > > 
> > > > But I need the expansion board!
> > > > 
> > > > How do I do without expansion board then?
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
>

>
> Each of the Samsung chips is 256k x 4 bits. So two of them give you 256kB and 8 x 256kB = 2MB.
> 
> The 18 pin sockets are for the 4464 DRAM used in the 1MB version of the Emax II and you cannot use them at the same time as the 20 pin sockets, its 
> either one set of DRAMs or the other. If you want to expand your Emax II to more than 2MB you will need to get the RAM expansion board...
> 
> /Tristan
> 
> Monday, November 30, 2009, 7:59:55 AM, you wrote:
> 
> >
>   
> So I opened up the cover again and did some thorough examination.
> 
> I have 16 chips of Samsung KM44C256CP-7 up through IC socket 63. At 256k per chip I don't initially understand why that only equals 2MB of 
> memory...
> 
> Sockets 64-99 are available for soldering, but they are 18 pin slots compared to the 20 pin Samsungs! What is up with that?
> 
> I shone a light onto the PC board and it seems all of the traces on two sides of the processor go through the respective chip sockets all the way to the 
> two expansion board connectors, so that is hopeful that once it can be figured out, we can make our own expansion boards right on the mainboard.
> 
> If we can find the right source for 18 pin IC sockets and the right 44256 memory modules (70ns,20ns,130ns) I should be able to upgrade my Emax to 
> 6mb of memory right on the mainboard.
> 
> --- In emax@yahoogroups.com, "thenewyorkcowboy" <thenewyorkcowboy@> wrote:
> >
> > Ah! I finally figured it out. I did more research and my model, the 2212 is only a 2mb which I verified by Master 4,Y,2, and got 1048488. Here I had 
> been doing improper math but with the Emax II Diagnostics.pdf I came to this conclusion. Bad for me! But now I need to find someone that has a late 
> model 2205 with 8mb and find out if the factory installed all the memory on the mainboard or did they also use two 2208 kits to get to 8mb. That would 
> provide the solution whether or not the mainboard slots could be populated with sockets and chips.
> > 
> > --- In emax@yahoogroups.com, "Everett" <evy_newt@> wrote:
> > >
> > > My expanded EMAX actually only has a portion of the sockets filled on the main board. I believe the writeup on emulator archive goes through why 
> in more detail. I believe someone else stated that the PALs are different on the models with the board installed. The upgrade kit inventory shows these 
> PAL chips in there, so that makes sense.
> > > 
> > > --- In emax@yahoogroups.com, "thenewyorkcowboy" <thenewyorkcowboy@> wrote:
> > > >
> > > > Yeah I was all hopeful until I opened my Emax II up and saw that I don't have the board, just an empty space where it looks like there are 
> enough places to solder in sockets to get the Emax II up to 12 megs. I have 4 already (16 chips) and there are 32 spaces available. Does anyone think 
> that actually soldering in another 16 sockets would be the same as adding an expansion board?
> > > > 
> > > > --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> > > > >
> > > > > I believe what the Memory Upgrade people are saying is:
> > > > > 
> > > > > 1) If you have "scrambled megs" and your emax 2 doesn't see all your 
> > > > > memory, then they have a fix
> > > > > 2) If you have a expansion board, and it is not full, you now have an 
> > > > > inexpensive way to fill it up the rest of the way and get a chip so 
> > > > > emax2 sees the added memory now.
> > > > > 
> > > > > But I don't think they are saying they are duplicating the Expansion 
> > > > > board at all.... you must already have an expansion board.
> > > > > 
> > > > > 
> > > > > 
> > > > > On Nov 26, 2009, at 6:36 PM, Reinaldo wrote:
> > > > > 
> > > > > So...
> > > > > 
> > > > > I can download the file and burn a new eprom chip for my emax II.
> > > > > 
> > > > > Then I can buy the memory chips on eBay.
> > > > > 
> > > > > But I need the expansion board!
> > > > > 
> > > > > How do I do without expansion board then?
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > >
> > >
> >
>

>
> My understanding is that the RAM expansion board has PALs that go with it.
> Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
> Archive.
> Even if you duplicated the PCB, you would have to be able to make the PALs
> that allow the access to the extra memory.
> You would need the original PAL binaries for that.....
> 
> Otherwise the Emax wouldn't be able to address the additional memory....
> even if it was physically installed.
> 
> Someone correct me if I am wrong in my understanding of what was discussed
> previous on the thread.
> 
> Regards,
> Ted
> 
> 
> 
>

  ----- Original Message ----- 
  From: dwv1957 
  To: emax@yahoogroups.com 
  Sent: Tuesday, December 01, 2009 4:38 AM
  Subject: [emax] Re: Memory Upgrades


    
  You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
  As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
  The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.

  Dave

  --- In emax@yahoogroups.com, Ted Summers <djtbs1@...> wrote:
  >
  > My understanding is that the RAM expansion board has PALs that go with it.
  > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
  > Archive.
  > Even if you duplicated the PCB, you would have to be able to make the PALs
  > that allow the access to the extra memory.
  > You would need the original PAL binaries for that.....
  > 
  > Otherwise the Emax wouldn't be able to address the additional memory....
  > even if it was physically installed.
  > 
  > Someone correct me if I am wrong in my understanding of what was discussed
  > previous on the thread.
  > 
  > Regards,
  > Ted
  > 
  > 
  > 
  > 



  

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

>
> If someone is willing to donate their board, then duplicating it is not a problem, x ray scanning the board and using the scan in eagle is possible, as we have done it for asr10 sp3 scsi interface which is a 4 layer board, and the production costs for resale worked out at £120 which is cheap as the original was £300 from ensoniq
> 
> It can be done and you can use a logic scanner for the functions of the pals, its not impossible, and that's how manufacturers upgrade there boards with new tech for old industrial computers.
> 
> It would be nice if we could get the bin files for the pals, we would have to ask rob if he could find out if the bin files are still available. 
>   ----- Original Message ----- 
>   From: dwv1957 
>   To: emax@yahoogroups.com 
>   Sent: Tuesday, December 01, 2009 4:38 AM
>   Subject: [emax] Re: Memory Upgrades
> 
> 
>     
>   You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
>   As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
>   The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.
> 
>   Dave
> 
>   --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
>   >
>   > My understanding is that the RAM expansion board has PALs that go with it.
>   > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
>   > Archive.
>   > Even if you duplicated the PCB, you would have to be able to make the PALs
>   > that allow the access to the extra memory.
>   > You would need the original PAL binaries for that.....
>   > 
>   > Otherwise the Emax wouldn't be able to address the additional memory....
>   > even if it was physically installed.
>   > 
>   > Someone correct me if I am wrong in my understanding of what was discussed
>   > previous on the thread.
>   > 
>   > Regards,
>   > Ted
>   > 
>   > 
>   > 
>   > 
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>

  ----- Original Message ----- 
  From: dwv1957 
  To: emax@yahoogroups.com 
  Sent: Tuesday, December 01, 2009 7:16 PM
  Subject: [emax] Re: Memory Upgrades


    
  That translates to approximately $200 US, then add another $100 (minimum) for the ram, so your looking at a minimum of $300 + associated shipping costs to upgrade your Emax 2.
  A fully populated 8 meg Emax 2 is only worth around $250-300 in working condition, my question is, How many people would be willing to pay $300+ for the upgrade, when you can buy another machine for the same, or less, and have a bunch of other spare parts to boot?

  Dave 

  --- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
  >
  > If someone is willing to donate their board, then duplicating it is not a problem, x ray scanning the board and using the scan in eagle is possible, as we have done it for asr10 sp3 scsi interface which is a 4 layer board, and the production costs for resale worked out at £120 which is cheap as the original was £300 from ensoniq
  > 
  > It can be done and you can use a logic scanner for the functions of the pals, its not impossible, and that's how manufacturers upgrade there boards with new tech for old industrial computers.
  > 
  > It would be nice if we could get the bin files for the pals, we would have to ask rob if he could find out if the bin files are still available. 
  > ----- Original Message ----- 
  > From: dwv1957 
  > To: emax@yahoogroups.com 
  > Sent: Tuesday, December 01, 2009 4:38 AM
  > Subject: [emax] Re: Memory Upgrades
  > 
  > 
  > 
  > You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
  > As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
  > The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.
  > 
  > Dave
  > 
  > --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
  > >
  > > My understanding is that the RAM expansion board has PALs that go with it.
  > > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
  > > Archive.
  > > Even if you duplicated the PCB, you would have to be able to make the PALs
  > > that allow the access to the extra memory.
  > > You would need the original PAL binaries for that.....
  > > 
  > > Otherwise the Emax wouldn't be able to address the additional memory....
  > > even if it was physically installed.
  > > 
  > > Someone correct me if I am wrong in my understanding of what was discussed
  > > previous on the thread.
  > > 
  > > Regards,
  > > Ted
  > > 
  > > 
  > > 
  > > 
  > 
  > 
  > 
  > 
  > 
  > [Non-text portions of this message have been removed]
  >



  


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

>
> if some one is willing to donner there board then duplicating it is not a problem x ray scanning the board and using the scan in eagle is possible as we have done it for asr10 sp3 scsi interface which is a 4 layer board and the production costs for resale worked out at £120 which is cheap as the original was £300 from ensoniq
> 
> it can be done and you can use a logic scanner for the functions of the pals its not impossible and thats how manufacturers upgrade there boards with new tech for old industrial computers
> 
> it would be nice if we could get the bin files for the pals we would have to ask rob if he could find out if the bin files are still available 
>   ----- Original Message ----- 
>   From: dwv1957 
>   To: emax@yahoogroups.com 
>   Sent: Tuesday, December 01, 2009 4:38 AM
>   Subject: [emax] Re: Memory Upgrades
> 
> 
>     
>   You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
>   As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
>   The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.
> 
>   Dave
> 
>   --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
>   >
>   > My understanding is that the RAM expansion board has PALs that go with it.
>   > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
>   > Archive.
>   > Even if you duplicated the PCB, you would have to be able to make the PALs
>   > that allow the access to the extra memory.
>   > You would need the original PAL binaries for that.....
>   > 
>   > Otherwise the Emax wouldn't be able to address the additional memory....
>   > even if it was physically installed.
>   > 
>   > Someone correct me if I am wrong in my understanding of what was discussed
>   > previous on the thread.
>   > 
>   > Regards,
>   > Ted
>   > 
>   > 
>   > 
>   > 
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>

>
> That translates to approximately $200 US, then add another $100 (minimum) for the ram, so your looking at a minimum of $300 + associated shipping costs to upgrade your Emax 2.
> A fully populated 8 meg Emax 2 is only worth around $250-300 in working condition, my question is, How many people would be willing to pay $300+ for the upgrade, when you can buy another machine for the same, or less, and have a bunch of other spare parts to boot?
> 
> Dave 
> 
> 
> --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> >
> > If someone is willing to donate their board, then duplicating it is not a problem, x ray scanning the board and using the scan in eagle is possible, as we have done it for asr10 sp3 scsi interface which is a 4 layer board, and the production costs for resale worked out at £120 which is cheap as the original was £300 from ensoniq
> > 
> > It can be done and you can use a logic scanner for the functions of the pals, its not impossible, and that's how manufacturers upgrade there boards with new tech for old industrial computers.
> > 
> > It would be nice if we could get the bin files for the pals, we would have to ask rob if he could find out if the bin files are still available. 
> >   ----- Original Message ----- 
> >   From: dwv1957 
> >   To: emax@yahoogroups.com 
> >   Sent: Tuesday, December 01, 2009 4:38 AM
> >   Subject: [emax] Re: Memory Upgrades
> > 
> > 
> >     
> >   You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
> >   As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
> >   The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.
> > 
> >   Dave
> > 
> >   --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> >   >
> >   > My understanding is that the RAM expansion board has PALs that go with it.
> >   > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
> >   > Archive.
> >   > Even if you duplicated the PCB, you would have to be able to make the PALs
> >   > that allow the access to the extra memory.
> >   > You would need the original PAL binaries for that.....
> >   > 
> >   > Otherwise the Emax wouldn't be able to address the additional memory....
> >   > even if it was physically installed.
> >   > 
> >   > Someone correct me if I am wrong in my understanding of what was discussed
> >   > previous on the thread.
> >   > 
> >   > Regards,
> >   > Ted
> >   > 
> >   > 
> >   > 
> >   > 
> > 
> > 
> > 
> >   
> > 
> > [Non-text portions of this message have been removed]
> >
>

>
> True, but how many 8mb units have you seen for sale in the past two years, for example?  
> 
> I have another keyboard from the same era, a 1986 Korg Poly-800 that now has a new 'kit' out for $100 (about the price of the unit itself) that greatly increases its functionality, etc. the Hawk-800 mod.
> 
> I am just trying to exhaust all the DIY angles.  Even the Commodore 64 has new USB to PC adapters for $39 because someone just kept at it.  Maybe someday all the 'codes' will be broken and we can be playing with 32mb EmaxIIs with all new software, etc.  It just takes collaboration, not resignation, and right now it is a question of money.  This guy in France is a great testament to that fact.
> 
> http://matthieu.benoit.free.fr/parts_for_Exchange.htm
> 
> --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> >
> > That translates to approximately $200 US, then add another $100 (minimum) for the ram, so your looking at a minimum of $300 + associated shipping costs to upgrade your Emax 2.
> > A fully populated 8 meg Emax 2 is only worth around $250-300 in working condition, my question is, How many people would be willing to pay $300+ for the upgrade, when you can buy another machine for the same, or less, and have a bunch of other spare parts to boot?
> > 
> > Dave 
> > 
> > 
> > --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> > >
> > > If someone is willing to donate their board, then duplicating it is not a problem, x ray scanning the board and using the scan in eagle is possible, as we have done it for asr10 sp3 scsi interface which is a 4 layer board, and the production costs for resale worked out at £120 which is cheap as the original was £300 from ensoniq
> > > 
> > > It can be done and you can use a logic scanner for the functions of the pals, its not impossible, and that's how manufacturers upgrade there boards with new tech for old industrial computers.
> > > 
> > > It would be nice if we could get the bin files for the pals, we would have to ask rob if he could find out if the bin files are still available. 
> > >   ----- Original Message ----- 
> > >   From: dwv1957 
> > >   To: emax@yahoogroups.com 
> > >   Sent: Tuesday, December 01, 2009 4:38 AM
> > >   Subject: [emax] Re: Memory Upgrades
> > > 
> > > 
> > >     
> > >   You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
> > >   As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
> > >   The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.
> > > 
> > >   Dave
> > > 
> > >   --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> > >   >
> > >   > My understanding is that the RAM expansion board has PALs that go with it.
> > >   > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
> > >   > Archive.
> > >   > Even if you duplicated the PCB, you would have to be able to make the PALs
> > >   > that allow the access to the extra memory.
> > >   > You would need the original PAL binaries for that.....
> > >   > 
> > >   > Otherwise the Emax wouldn't be able to address the additional memory....
> > >   > even if it was physically installed.
> > >   > 
> > >   > Someone correct me if I am wrong in my understanding of what was discussed
> > >   > previous on the thread.
> > >   > 
> > >   > Regards,
> > >   > Ted
> > >   > 
> > >   > 
> > >   > 
> > >   > 
> > > 
> > > 
> > > 
> > >   
> > > 
> > > [Non-text portions of this message have been removed]
> > >
> >
>

>
> Actually, in the last few years I have picked up several 8MB Emax II racks for around $50 each plus shipping. You just have to keep watching Ebay etc. Often they come up at silly prices, but week after week they come down to something reasonable. Quite often they sell in the $100-$200 range. Mostly the sellers don't understand what they have or make wildly inaccurate claims in the descriptions, so its not easy to be sure what you are getting. But any Emax II expanded beyond 1MB or 2MB will have the memory expansion board.
> 
> Reverse engineering and building a replacement memory expansion board for the Emax II would not be extremely difficult. Anyone with a logic analyzer and sufficient knowledge of digital electronics should be able to do it. The main issue is the amount of work involved. Someone could take it on as a labour of love, but its hard to justify when you can buy an Emax II for the price of a few hours of an engineer's time...
> 
> /Tristan 
> 
> --- In emax@yahoogroups.com, "thenewyorkcowboy" <thenewyorkcowboy@> wrote:
> >
> > True, but how many 8mb units have you seen for sale in the past two years, for example?  
> > 
> > I have another keyboard from the same era, a 1986 Korg Poly-800 that now has a new 'kit' out for $100 (about the price of the unit itself) that greatly increases its functionality, etc. the Hawk-800 mod.
> > 
> > I am just trying to exhaust all the DIY angles.  Even the Commodore 64 has new USB to PC adapters for $39 because someone just kept at it.  Maybe someday all the 'codes' will be broken and we can be playing with 32mb EmaxIIs with all new software, etc.  It just takes collaboration, not resignation, and right now it is a question of money.  This guy in France is a great testament to that fact.
> > 
> > http://matthieu.benoit.free.fr/parts_for_Exchange.htm
> > 
> > --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> > >
> > > That translates to approximately $200 US, then add another $100 (minimum) for the ram, so your looking at a minimum of $300 + associated shipping costs to upgrade your Emax 2.
> > > A fully populated 8 meg Emax 2 is only worth around $250-300 in working condition, my question is, How many people would be willing to pay $300+ for the upgrade, when you can buy another machine for the same, or less, and have a bunch of other spare parts to boot?
> > > 
> > > Dave 
> > > 
> > > 
> > > --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> > > >
> > > > If someone is willing to donate their board, then duplicating it is not a problem, x ray scanning the board and using the scan in eagle is possible, as we have done it for asr10 sp3 scsi interface which is a 4 layer board, and the production costs for resale worked out at £120 which is cheap as the original was £300 from ensoniq
> > > > 
> > > > It can be done and you can use a logic scanner for the functions of the pals, its not impossible, and that's how manufacturers upgrade there boards with new tech for old industrial computers.
> > > > 
> > > > It would be nice if we could get the bin files for the pals, we would have to ask rob if he could find out if the bin files are still available. 
> > > >   ----- Original Message ----- 
> > > >   From: dwv1957 
> > > >   To: emax@yahoogroups.com 
> > > >   Sent: Tuesday, December 01, 2009 4:38 AM
> > > >   Subject: [emax] Re: Memory Upgrades
> > > > 
> > > > 
> > > >     
> > > >   You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
> > > >   As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
> > > >   The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.
> > > > 
> > > >   Dave
> > > > 
> > > >   --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> > > >   >
> > > >   > My understanding is that the RAM expansion board has PALs that go with it.
> > > >   > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
> > > >   > Archive.
> > > >   > Even if you duplicated the PCB, you would have to be able to make the PALs
> > > >   > that allow the access to the extra memory.
> > > >   > You would need the original PAL binaries for that.....
> > > >   > 
> > > >   > Otherwise the Emax wouldn't be able to address the additional memory....
> > > >   > even if it was physically installed.
> > > >   > 
> > > >   > Someone correct me if I am wrong in my understanding of what was discussed
> > > >   > previous on the thread.
> > > >   > 
> > > >   > Regards,
> > > >   > Ted
> > > >   > 
> > > >   > 
> > > >   > 
> > > >   > 
> > > > 
> > > > 
> > > > 
> > > >   
> > > > 
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
>

>
> "Several"??  Hey guys we found the hoarder!  LOL.
> 
> Yes, I picked up my 2mb for I think $152 if I remember, but wow, getting an 8mb rack for $50?
> 
> The irony of all this then is that there is a Yahoo Group dedicated to a $50 piece of equipment, just like all the groups out there for C64s which can be picked up usually for $20....
> 
> --- In emax@yahoogroups.com, "tristanupton" <tu@> wrote:
> >
> > Actually, in the last few years I have picked up several 8MB Emax II racks for around $50 each plus shipping. You just have to keep watching Ebay etc. Often they come up at silly prices, but week after week they come down to something reasonable. Quite often they sell in the $100-$200 range. Mostly the sellers don't understand what they have or make wildly inaccurate claims in the descriptions, so its not easy to be sure what you are getting. But any Emax II expanded beyond 1MB or 2MB will have the memory expansion board.
> > 
> > Reverse engineering and building a replacement memory expansion board for the Emax II would not be extremely difficult. Anyone with a logic analyzer and sufficient knowledge of digital electronics should be able to do it. The main issue is the amount of work involved. Someone could take it on as a labour of love, but its hard to justify when you can buy an Emax II for the price of a few hours of an engineer's time...
> > 
> > /Tristan 
> > 
> > --- In emax@yahoogroups.com, "thenewyorkcowboy" <thenewyorkcowboy@> wrote:
> > >
> > > True, but how many 8mb units have you seen for sale in the past two years, for example?  
> > > 
> > > I have another keyboard from the same era, a 1986 Korg Poly-800 that now has a new 'kit' out for $100 (about the price of the unit itself) that greatly increases its functionality, etc. the Hawk-800 mod.
> > > 
> > > I am just trying to exhaust all the DIY angles.  Even the Commodore 64 has new USB to PC adapters for $39 because someone just kept at it.  Maybe someday all the 'codes' will be broken and we can be playing with 32mb EmaxIIs with all new software, etc.  It just takes collaboration, not resignation, and right now it is a question of money.  This guy in France is a great testament to that fact.
> > > 
> > > http://matthieu.benoit.free.fr/parts_for_Exchange.htm
> > > 
> > > --- In emax@yahoogroups.com, "dwv1957" <dwv1957@> wrote:
> > > >
> > > > That translates to approximately $200 US, then add another $100 (minimum) for the ram, so your looking at a minimum of $300 + associated shipping costs to upgrade your Emax 2.
> > > > A fully populated 8 meg Emax 2 is only worth around $250-300 in working condition, my question is, How many people would be willing to pay $300+ for the upgrade, when you can buy another machine for the same, or less, and have a bunch of other spare parts to boot?
> > > > 
> > > > Dave 
> > > > 
> > > > 
> > > > --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> > > > >
> > > > > If someone is willing to donate their board, then duplicating it is not a problem, x ray scanning the board and using the scan in eagle is possible, as we have done it for asr10 sp3 scsi interface which is a 4 layer board, and the production costs for resale worked out at £120 which is cheap as the original was £300 from ensoniq
> > > > > 
> > > > > It can be done and you can use a logic scanner for the functions of the pals, its not impossible, and that's how manufacturers upgrade there boards with new tech for old industrial computers.
> > > > > 
> > > > > It would be nice if we could get the bin files for the pals, we would have to ask rob if he could find out if the bin files are still available. 
> > > > >   ----- Original Message ----- 
> > > > >   From: dwv1957 
> > > > >   To: emax@yahoogroups.com 
> > > > >   Sent: Tuesday, December 01, 2009 4:38 AM
> > > > >   Subject: [emax] Re: Memory Upgrades
> > > > > 
> > > > > 
> > > > >     
> > > > >   You are exactly right Ted, the expansion board has 4 PALs on it plus some 74HCxxx chips on it, it is also a 4 layer board, so the amount of work it would take to duplicate it is just not worth it.
> > > > >   As for "stacking" chips on the motherboard's 18 pin sockets, not a hope in hell of that working (sorry).
> > > > >   The only way to upgrade the Emax2, is to have the original upgrade board, as long as you have that, you can upgrade it to anything you want.
> > > > > 
> > > > >   Dave
> > > > > 
> > > > >   --- In emax@yahoogroups.com, Ted Summers <djtbs1@> wrote:
> > > > >   >
> > > > >   > My understanding is that the RAM expansion board has PALs that go with it.
> > > > >   > Getting the PAL binaries for the SCSI update wasn't easy for Rob at Emulator
> > > > >   > Archive.
> > > > >   > Even if you duplicated the PCB, you would have to be able to make the PALs
> > > > >   > that allow the access to the extra memory.
> > > > >   > You would need the original PAL binaries for that.....
> > > > >   > 
> > > > >   > Otherwise the Emax wouldn't be able to address the additional memory....
> > > > >   > even if it was physically installed.
> > > > >   > 
> > > > >   > Someone correct me if I am wrong in my understanding of what was discussed
> > > > >   > previous on the thread.
> > > > >   > 
> > > > >   > Regards,
> > > > >   > Ted
> > > > >   > 
> > > > >   > 
> > > > >   > 
> > > > >   > 
> > > > > 
> > > > > 
> > > > > 
> > > > >   
> > > > > 
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > >
> > >
> >
>

 Subject: Re: [emax] Memory Upgrades
 To: emax@yahoogroups.com
 Date: Tuesday, October 13, 2015, 9:52 AM
 
 
  
 
 
 
   
 
 
     
       
       
       You have to have the proper PALs installed.You can verify this by looking at
 the Emax 2 Memory Uprgade document.If you have the correct PALs
 installed, then yes, scrambled megs is all you need (EPR can
 give you the unlock code).If you don’t have the correct
 PALs, then you would not be able to upgrade it.
 Although I have been given some
 PAL binaries (which I can’t program yet) which may enable
 this in the future….
 -T
 
 
 On Oct 13, 2015, at 7:29 AM, graham.hunter@gmail.com
 [emax] <emax@yahoogroups.com>
 wrote:
 
 I have an Emax 2 rack with 4MB of
 memory and a set of 4MB chips sitting next to me on my
 desk.
 Is the "scrambled megs"
 code the only thing that will let me unlock the extra 4MB
 once installed, or are there other ways to get the sampler
 to recognize the upgrade after the
 installation?
 
 
 
     
      
 
     
     
 
 
 
 #yiv9669454770 #yiv9669454770 --