Emax

Hello all,

Well, it looks as if my Emax II is beyond repair, (Output board, and power supply not 
working), but I'm getting it checked over anyway, just in case it can be repaired.
If I can't get it repaired, I have an option to improve my Emax II keyboard. My Emax II rack 
was fitted with a daughter board, with 8MB of RAM, (7MB on daughter board, 1MB on main 
board?). 
It would be great if I could install the daughter board in my Emax II keyboard, along with the 
RAM......how would I go about doing this?
My Emax II keyboard has 1MB RAM, and has the stereo option.
And help with the above would be greatly appreciated.

All the best

Dave

Hello Dave,

While you can physically install the daughter board in your Emax II keyboard, the memory will not 
be recognised until the internal Emax II EEPROM is updated. But to do that you need to run a 
memory install disk which will write some data into the EEPROM. These install disks are 
unfortunately rather rare. But its possible someone on the list may have one, or a copy of the disk 
image to enable you to make your own. The only other alternatives are to use the adjust features 
option in the diagnostics menu  to perform a manual install or to remove and hack the EEPROM 
directly. I don't know what the manual install codes are, or what bits to hack on the EEPROM, so 
these are probably not great options :P

BTW, the daughter board only has a maximum of 6MB of RAM installed. The Emax II motherboard 
will have either 1MB or 2MB. It is possible to upgrade a 1MB motherboard to 2MB by replacing the 
RAM chips with a higher capacity chip and changing some PALs. But I think even this upgrade 
requires a change to the EEPROM, so you are stuck with the same problem... Actually, I just did 
some checking and it seems the daughter board also requires different PALs to be installed if it is 
used with an Emax II with 1MB base RAM compared compared to one with 2MB base RAM. 

Something else you could consider is transplanting the motherboard from your Emax II rack into 
the Emax II keyboard. Because the motherboard comes with the EEPROM, the keyboard would 
then be able to use the daughter board and have 8MB of RAM. I believe the motherboards are 
identical, but I cannot be sure. One small difference between the rack and the keyboard is that the 
keyboard allows you to set the LCD contrast from the master menu whereas the rack has a trim 
pot mounted on the front panel that must be manually adjusted. But it is possible this difference is 
only to do with the front panel board and not the motherboard itself.

/Tristan  

Tuesday, December 30, 2008, 1:31:40 AM, you wrote:

>
Hello all,

Well, it looks as if my Emax II is beyond repair, (Output board, and power supply not 
working), but I'm getting it checked over anyway, just in case it can be repaired.
If I can't get it repaired, I have an option to improve my Emax II keyboard. My Emax II rack 
was fitted with a daughter board, with 8MB of RAM, (7MB on daughter board, 1MB on main 
board?). 
It would be great if I could install the daughter board in my Emax II keyboard, along with the 
RAM......how would I go about doing this?
My Emax II keyboard has 1MB RAM, and has the stereo option.
And help with the above would be greatly appreciated.

All the best

Dave

 
Messages in this topic (1) Reply (via web post) | Start a new topic 
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.

Hello Tristan,

Many thanks indeed for your reply. I think the motherboard swap sounds like a very good 
option.....I'm going to take the two units apart today, and see if I can create a working 
8mb keyboard!!
I'll let you know how I get on.

All the best

Dave





--- In emax@yahoogroups.com, tu@... wrote:
>
> Hello Dave,
> 
> While you can physically install the daughter board in your Emax II keyboard, the 
memory will not 
> be recognised until the internal Emax II EEPROM is updated. But to do that you need to 
run a 
> memory install disk which will write some data into the EEPROM. These install disks are 
> unfortunately rather rare. But its possible someone on the list may have one, or a copy 
of the disk 
> image to enable you to make your own. The only other alternatives are to use the adjust 
features 
> option in the diagnostics menu  to perform a manual install or to remove and hack the 
EEPROM 
> directly. I don't know what the manual install codes are, or what bits to hack on the 
EEPROM, so 
> these are probably not great options :P
> 
> BTW, the daughter board only has a maximum of 6MB of RAM installed. The Emax II 
motherboard 
> will have either 1MB or 2MB. It is possible to upgrade a 1MB motherboard to 2MB by 
replacing the 
> RAM chips with a higher capacity chip and changing some PALs. But I think even this 
upgrade 
> requires a change to the EEPROM, so you are stuck with the same problem... Actually, I 
just did 
> some checking and it seems the daughter board also requires different PALs to be 
installed if it is 
> used with an Emax II with 1MB base RAM compared compared to one with 2MB base 
RAM. 
> 
> Something else you could consider is transplanting the motherboard from your Emax II 
rack into 
> the Emax II keyboard. Because the motherboard comes with the EEPROM, the keyboard 
would 
> then be able to use the daughter board and have 8MB of RAM. I believe the 
motherboards are 
> identical, but I cannot be sure. One small difference between the rack and the keyboard 
is that the 
> keyboard allows you to set the LCD contrast from the master menu whereas the rack 
has a trim 
> pot mounted on the front panel that must be manually adjusted. But it is possible this 
difference is 
> only to do with the front panel board and not the motherboard itself.
> 
> /Tristan  
> 
> Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> 
> >
> Hello all,
> 
> Well, it looks as if my Emax II is beyond repair, (Output board, and power supply not 
> working), but I'm getting it checked over anyway, just in case it can be repaired.
> If I can't get it repaired, I have an option to improve my Emax II keyboard. My Emax II 
rack 
> was fitted with a daughter board, with 8MB of RAM, (7MB on daughter board, 1MB on 
main 
> board?). 
> It would be great if I could install the daughter board in my Emax II keyboard, along 
with the 

> RAM......how would I go about doing this?
> My Emax II keyboard has 1MB RAM, and has the stereo option.
> And help with the above would be greatly appreciated.
> 
> All the best
> 
> Dave
> 
>  
> Messages in this topic (1) Reply (via web post) | Start a new topic 
> Messages | Files | Photos | Links | Database | Polls | Members | Calendar 
> Emax and Emax II User's Group Website
> 
> http://www.silveriafamily.com 
> MARKETPLACE
> 
> From kitchen basics to easy recipes - join the Group from Kraft Foods 
>  
> Change settings via the Web (Yahoo! ID required) 
> Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional 
> Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe 
> 
> Recent Activity
> 
>  4
> 
> New Members
> Visit Your Group 
> Yahoo! News
> Odd News
> You won't believe
> it, but it's true
> Ads on Yahoo!
> Learn more now.
> Reach customers
> searching for you.
> Drive Traffic
> Sponsored Search
> can help increase
> your site traffic.
> 
> .
>

Hello Tristan,

Well, I tried the motherboard swap, and the Emax II rack motherboard does indeed work 
with the Emax II keyboard, but, for some reason the extra memory doesn't appear, which 
is quite odd.....I can't figure out why?
As a sub note. You mentioned that I might not be able to adjust the contrast after the 
transplant,  as the contrast on the rack is adjustable via a panel button on the rack. The 
strange thing is, I was able to adjust the contrast via the slider.
Just a thought, could there be a chip on one of the other two boards (output, front 
button/LCD) that would block the use of the additional memory on the transplanted 
motherboard?
I was really hopeful when I'd put everything back together again, and the keyboard fired 
up, but after checking the memory, I found that I only had an additional 1mb of memory, 
rather than the 7mb I had hoped for, but hey, at least I now know that the boards are 
interchangeable, which is good to know!!
Many thanks indeed again for all of your help and advice.


All the best

Dave



--- In emax@yahoogroups.com, "bty54193247" <goodrobot@...> wrote:
>
> Hello Tristan,
> 
> Many thanks indeed for your reply. I think the motherboard swap sounds like a very 
good 
> option.....I'm going to take the two units apart today, and see if I can create a working 
> 8mb keyboard!!
> I'll let you know how I get on.
> 
> All the best
> 
> Dave
> 
> 
> 
> 
> 
> --- In emax@yahoogroups.com, tu@ wrote:
> >
> > Hello Dave,
> > 
> > While you can physically install the daughter board in your Emax II keyboard, the 
> memory will not 
> > be recognised until the internal Emax II EEPROM is updated. But to do that you need 
to 
> run a 
> > memory install disk which will write some data into the EEPROM. These install disks 
are 
> > unfortunately rather rare. But its possible someone on the list may have one, or a 
copy 
> of the disk 
> > image to enable you to make your own. The only other alternatives are to use the 
adjust 
> features 
> > option in the diagnostics menu  to perform a manual install or to remove and hack 
the 
> EEPROM 
> > directly. I don't know what the manual install codes are, or what bits to hack on the 
> EEPROM, so 
> > these are probably not great options :P
> > 
> > BTW, the daughter board only has a maximum of 6MB of RAM installed. The Emax II 
> motherboard 
> > will have either 1MB or 2MB. It is possible to upgrade a 1MB motherboard to 2MB by 
> replacing the 
> > RAM chips with a higher capacity chip and changing some PALs. But I think even this 
> upgrade 
> > requires a change to the EEPROM, so you are stuck with the same problem... Actually, 
I 
> just did 
> > some checking and it seems the daughter board also requires different PALs to be 
> installed if it is 
> > used with an Emax II with 1MB base RAM compared compared to one with 2MB base 
> RAM. 
> > 
> > Something else you could consider is transplanting the motherboard from your Emax 
II 
> rack into 
> > the Emax II keyboard. Because the motherboard comes with the EEPROM, the 
keyboard 
> would 
> > then be able to use the daughter board and have 8MB of RAM. I believe the 
> motherboards are 
> > identical, but I cannot be sure. One small difference between the rack and the 
keyboard 
> is that the 
> > keyboard allows you to set the LCD contrast from the master menu whereas the rack 
> has a trim 
> > pot mounted on the front panel that must be manually adjusted. But it is possible this 
> difference is 
> > only to do with the front panel board and not the motherboard itself.
> > 
> > /Tristan  
> > 
> > Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> > 
> > >
> > Hello all,
> > 
> > Well, it looks as if my Emax II is beyond repair, (Output board, and power supply not 
> > working), but I'm getting it checked over anyway, just in case it can be repaired.
> > If I can't get it repaired, I have an option to improve my Emax II keyboard. My Emax II 
> rack 
> > was fitted with a daughter board, with 8MB of RAM, (7MB on daughter board, 1MB on 
> main 
> > board?). 
> > It would be great if I could install the daughter board in my Emax II keyboard, along 
> with the 
> > RAM......how would I go about doing this?
> > My Emax II keyboard has 1MB RAM, and has the stereo option.
> > And help with the above would be greatly appreciated.
> > 
> > All the best
> > 
> > Dave
> > 
> >  
> > Messages in this topic (1) Reply (via web post) | Start a new topic 
> > Messages | Files | Photos | Links | Database | Polls | Members | Calendar 
> > Emax and Emax II User's Group Website
> > 
> > http://www.silveriafamily.com 
> > MARKETPLACE
> > 
> > From kitchen basics to easy recipes - join the Group from Kraft Foods 
> >  
> > Change settings via the Web (Yahoo! ID required) 
> > Change settings via email: Switch delivery to Daily Digest | Switch format to 
Traditional 

> > Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe 
> > 
> > Recent Activity
> > 
> >  4
> > 
> > New Members
> > Visit Your Group 
> > Yahoo! News
> > Odd News
> > You won't believe
> > it, but it's true
> > Ads on Yahoo!
> > Learn more now.
> > Reach customers
> > searching for you.
> > Drive Traffic
> > Sponsored Search
> > can help increase
> > your site traffic.
> > 
> > .
> >
>

--- In emax@yahoogroups.com, "bty54193247" <goodrobot@...> wrote:
>if the mother board works then its just a power supply issue this
should cost you max £80 parts and labour

 jammie
> Hello Tristan,
> 
> Well, I tried the motherboard swap, and the Emax II rack motherboard
does indeed work 
> with the Emax II keyboard, but, for some reason the extra memory
doesn't appear, which 
> is quite odd.....I can't figure out why?
> As a sub note. You mentioned that I might not be able to adjust the
contrast after the 
> transplant,  as the contrast on the rack is adjustable via a panel
button on the rack. The 
> strange thing is, I was able to adjust the contrast via the slider.
> Just a thought, could there be a chip on one of the other two boards
(output, front 
> button/LCD) that would block the use of the additional memory on the
transplanted 
> motherboard?
> I was really hopeful when I'd put everything back together again,
and the keyboard fired 
> up, but after checking the memory, I found that I only had an
additional 1mb of memory, 
> rather than the 7mb I had hoped for, but hey, at least I now know
that the boards are 
> interchangeable, which is good to know!!
> Many thanks indeed again for all of your help and advice.
> 
> 
> All the best
> 
> Dave
> 
> 
> 
> --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> >
> > Hello Tristan,
> > 
> > Many thanks indeed for your reply. I think the motherboard swap
sounds like a very 
> good 
> > option.....I'm going to take the two units apart today, and see if
I can create a working 
> > 8mb keyboard!!
> > I'll let you know how I get on.
> > 
> > All the best
> > 
> > Dave
> > 
> > 
> > 
> > 
> > 
> > --- In emax@yahoogroups.com, tu@ wrote:
> > >
> > > Hello Dave,
> > > 
> > > While you can physically install the daughter board in your Emax
II keyboard, the 
> > memory will not 
> > > be recognised until the internal Emax II EEPROM is updated. But
to do that you need 
> to 
> > run a 
> > > memory install disk which will write some data into the EEPROM.
These install disks 
> are 
> > > unfortunately rather rare. But its possible someone on the list
may have one, or a 
> copy 
> > of the disk 
> > > image to enable you to make your own. The only other
alternatives are to use the 
> adjust 
> > features 
> > > option in the diagnostics menu  to perform a manual install or
to remove and hack 
> the 
> > EEPROM 
> > > directly. I don't know what the manual install codes are, or
what bits to hack on the 
> > EEPROM, so 
> > > these are probably not great options :P
> > > 
> > > BTW, the daughter board only has a maximum of 6MB of RAM
installed. The Emax II 
> > motherboard 
> > > will have either 1MB or 2MB. It is possible to upgrade a 1MB
motherboard to 2MB by 
> > replacing the 
> > > RAM chips with a higher capacity chip and changing some PALs.
But I think even this 
> > upgrade 
> > > requires a change to the EEPROM, so you are stuck with the same
problem... Actually, 
> I 
> > just did 
> > > some checking and it seems the daughter board also requires
different PALs to be 
> > installed if it is 
> > > used with an Emax II with 1MB base RAM compared compared to one
with 2MB base 
> > RAM. 
> > > 
> > > Something else you could consider is transplanting the
motherboard from your Emax 
> II 
> > rack into 
> > > the Emax II keyboard. Because the motherboard comes with the
EEPROM, the 
> keyboard 
> > would 
> > > then be able to use the daughter board and have 8MB of RAM. I
believe the 
> > motherboards are 
> > > identical, but I cannot be sure. One small difference between
the rack and the 
> keyboard 
> > is that the 
> > > keyboard allows you to set the LCD contrast from the master menu
whereas the rack 
> > has a trim 
> > > pot mounted on the front panel that must be manually adjusted.
But it is possible this 
> > difference is 
> > > only to do with the front panel board and not the motherboard
itself.
> > > 
> > > /Tristan  
> > > 
> > > Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> > > 
> > > >
> > > Hello all,
> > > 
> > > Well, it looks as if my Emax II is beyond repair, (Output board,
and power supply not 
> > > working), but I'm getting it checked over anyway, just in case
it can be repaired.
> > > If I can't get it repaired, I have an option to improve my Emax
II keyboard. My Emax II 
> > rack 
> > > was fitted with a daughter board, with 8MB of RAM, (7MB on
daughter board, 1MB on 
> > main 
> > > board?). 
> > > It would be great if I could install the daughter board in my
Emax II keyboard, along 
> > with the 
> > > RAM......how would I go about doing this?
> > > My Emax II keyboard has 1MB RAM, and has the stereo option.
> > > And help with the above would be greatly appreciated.
> > > 
> > > All the best
> > > 
> > > Dave
> > > 
> > >  
> > > Messages in this topic (1) Reply (via web post) | Start a new topic 
> > > Messages | Files | Photos | Links | Database | Polls | Members |
Calendar 
> > > Emax and Emax II User's Group Website
> > > 
> > > http://www.silveriafamily.com 
> > > MARKETPLACE
> > > 
> > > From kitchen basics to easy recipes - join the Group from Kraft
Foods 
> > >  
> > > Change settings via the Web (Yahoo! ID required) 
> > > Change settings via email: Switch delivery to Daily Digest |
Switch format to 

> Traditional 
> > > Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe 
> > > 
> > > Recent Activity
> > > 
> > >  4
> > > 
> > > New Members
> > > Visit Your Group 
> > > Yahoo! News
> > > Odd News
> > > You won't believe
> > > it, but it's true
> > > Ads on Yahoo!
> > > Learn more now.
> > > Reach customers
> > > searching for you.
> > > Drive Traffic
> > > Sponsored Search
> > > can help increase
> > > your site traffic.
> > > 
> > > .
> > >
> >
>

Hello Jammie,

I've decided to get the rack working. A guy I know in Southampton will rebuild the power 
supply for £35 - £40 + parts.
The other issue is the output board. I'm going to take it over to him next week to have a 
look at. As the output board was in perfect working order a couple of weeks ago, I'm 
hoping it is something simple, in which case it shouldn't cost much to repair.

In all honesty, I was hoping that I could just transfer the motherboard, and daughterboard 
into my Emax II keyboard, I would then fit a HD, and I would be a happy chappy. OK, the 
remaining Emax II rack parts would be surplus to requirement, but I know there would be 
plenty of parts that other board user would be able to make use of.

Many thanks again

All the best

Dave



--- In emax@yahoogroups.com, "jammie.emma" <jammie.emma@...> wrote:

>
> --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> >if the mother board works then its just a power supply issue this
> should cost you max £80 parts and labour
> 
>  jammie
> > Hello Tristan,
> > 
> > Well, I tried the motherboard swap, and the Emax II rack motherboard
> does indeed work 
> > with the Emax II keyboard, but, for some reason the extra memory
> doesn't appear, which 
> > is quite odd.....I can't figure out why?
> > As a sub note. You mentioned that I might not be able to adjust the
> contrast after the 
> > transplant,  as the contrast on the rack is adjustable via a panel
> button on the rack. The 
> > strange thing is, I was able to adjust the contrast via the slider.
> > Just a thought, could there be a chip on one of the other two boards
> (output, front 
> > button/LCD) that would block the use of the additional memory on the
> transplanted 
> > motherboard?
> > I was really hopeful when I'd put everything back together again,
> and the keyboard fired 
> > up, but after checking the memory, I found that I only had an
> additional 1mb of memory, 
> > rather than the 7mb I had hoped for, but hey, at least I now know
> that the boards are 
> > interchangeable, which is good to know!!
> > Many thanks indeed again for all of your help and advice.
> > 
> > 
> > All the best
> > 
> > Dave
> > 
> > 
> > 
> > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > >
> > > Hello Tristan,
> > > 
> > > Many thanks indeed for your reply. I think the motherboard swap
> sounds like a very 
> > good 
> > > option.....I'm going to take the two units apart today, and see if
> I can create a working 
> > > 8mb keyboard!!
> > > I'll let you know how I get on.
> > > 
> > > All the best
> > > 
> > > Dave
> > > 
> > > 
> > > 
> > > 
> > > 
> > > --- In emax@yahoogroups.com, tu@ wrote:
> > > >
> > > > Hello Dave,
> > > > 
> > > > While you can physically install the daughter board in your Emax
> II keyboard, the 
> > > memory will not 
> > > > be recognised until the internal Emax II EEPROM is updated. But
> to do that you need 
> > to 
> > > run a 
> > > > memory install disk which will write some data into the EEPROM.
> These install disks 
> > are 
> > > > unfortunately rather rare. But its possible someone on the list
> may have one, or a 
> > copy 
> > > of the disk 
> > > > image to enable you to make your own. The only other
> alternatives are to use the 
> > adjust 
> > > features 
> > > > option in the diagnostics menu  to perform a manual install or
> to remove and hack 
> > the 
> > > EEPROM 
> > > > directly. I don't know what the manual install codes are, or
> what bits to hack on the 
> > > EEPROM, so 
> > > > these are probably not great options :P
> > > > 
> > > > BTW, the daughter board only has a maximum of 6MB of RAM
> installed. The Emax II 
> > > motherboard 
> > > > will have either 1MB or 2MB. It is possible to upgrade a 1MB
> motherboard to 2MB by 
> > > replacing the 
> > > > RAM chips with a higher capacity chip and changing some PALs.
> But I think even this 
> > > upgrade 
> > > > requires a change to the EEPROM, so you are stuck with the same
> problem... Actually, 
> > I 
> > > just did 
> > > > some checking and it seems the daughter board also requires
> different PALs to be 
> > > installed if it is 
> > > > used with an Emax II with 1MB base RAM compared compared to one
> with 2MB base 
> > > RAM. 
> > > > 
> > > > Something else you could consider is transplanting the
> motherboard from your Emax 
> > II 
> > > rack into 
> > > > the Emax II keyboard. Because the motherboard comes with the
> EEPROM, the 
> > keyboard 
> > > would 
> > > > then be able to use the daughter board and have 8MB of RAM. I
> believe the 
> > > motherboards are 
> > > > identical, but I cannot be sure. One small difference between
> the rack and the 
> > keyboard 
> > > is that the 
> > > > keyboard allows you to set the LCD contrast from the master menu
> whereas the rack 
> > > has a trim 
> > > > pot mounted on the front panel that must be manually adjusted.
> But it is possible this 
> > > difference is 
> > > > only to do with the front panel board and not the motherboard
> itself.
> > > > 
> > > > /Tristan  
> > > > 
> > > > Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> > > > 
> > > > >
> > > > Hello all,
> > > > 
> > > > Well, it looks as if my Emax II is beyond repair, (Output board,
> and power supply not 
> > > > working), but I'm getting it checked over anyway, just in case
> it can be repaired.
> > > > If I can't get it repaired, I have an option to improve my Emax
> II keyboard. My Emax II 
> > > rack 
> > > > was fitted with a daughter board, with 8MB of RAM, (7MB on
> daughter board, 1MB on 
> > > main 
> > > > board?). 
> > > > It would be great if I could install the daughter board in my
> Emax II keyboard, along 
> > > with the 
> > > > RAM......how would I go about doing this?
> > > > My Emax II keyboard has 1MB RAM, and has the stereo option.
> > > > And help with the above would be greatly appreciated.
> > > > 
> > > > All the best
> > > > 
> > > > Dave
> > > > 
> > > >  
> > > > Messages in this topic (1) Reply (via web post) | Start a new topic 
> > > > Messages | Files | Photos | Links | Database | Polls | Members |
> Calendar 
> > > > Emax and Emax II User's Group Website
> > > > 
> > > > http://www.silveriafamily.com 
> > > > MARKETPLACE
> > > > 
> > > > From kitchen basics to easy recipes - join the Group from Kraft
> Foods 
> > > >  
> > > > Change settings via the Web (Yahoo! ID required) 
> > > > Change settings via email: Switch delivery to Daily Digest |
> Switch format to 
> > Traditional 
> > > > Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe 
> > > > 
> > > > Recent Activity
> > > > 
> > > >  4
> > > > 
> > > > New Members
> > > > Visit Your Group 
> > > > Yahoo! News
> > > > Odd News
> > > > You won't believe
> > > > it, but it's true
> > > > Ads on Yahoo!
> > > > Learn more now.
> > > > Reach customers
> > > > searching for you.
> > > > Drive Traffic
> > > > Sponsored Search
> > > > can help increase
> > > > your site traffic.
> > > > 
> > > > .
> > > >
> > >
> >
>

Hello Dave,

Its good to hear the motherboard from the rack works in the keyboard.

Try running Master -> 9 -> 8 Install disk with the daughter board installed. Many years ago I 
removed the daughter board from my 4MB Emax II keyboard and then reinstalled it only discover 
I only had 2MB. But after running Install disk option (and powering off and on I think) it saw the full 
4MB again. Note, this is just selecting the menu option and pressing enter, I did not have any 
install disk in the floppy drive. I do not suggest doing this action without the daughter board 
installed in case it leaves you permanently with 1MB! 

The LCD contrast paramter was always there on the rack Emax II but did not change the contast 
when adjusted. I see the front panel on the keyboard has a voltage routed to the LCD contrast 
while the rack has a pot generating the voltage. So yes, it seems to be just a physical difference in 
the front panel board.

/Tristan 

Quoting bty54193247 <goodrobot@...>:

> Hello Tristan,
> 
> Well, I tried the motherboard swap, and the Emax II rack motherboard
> does indeed work 
> with the Emax II keyboard, but, for some reason the extra memory
> doesn't appear, which 
> is quite odd.....I can't figure out why?
> As a sub note. You mentioned that I might not be able to adjust the
> contrast after the 
> transplant,  as the contrast on the rack is adjustable via a panel
> button on the rack. The 
> strange thing is, I was able to adjust the contrast via the slider.
> Just a thought, could there be a chip on one of the other two boards
> (output, front 
> button/LCD) that would block the use of the additional memory on the
> transplanted 
> motherboard?
> I was really hopeful when I'd put everything back together again, and
> the keyboard fired 
> up, but after checking the memory, I found that I only had an
> additional 1mb of memory, 
> rather than the 7mb I had hoped for, but hey, at least I now know
> that the boards are 
> interchangeable, which is good to know!!
> Many thanks indeed again for all of your help and advice.
> 
> 
> All the best
> 
> Dave
> 
> 
> 
> --- In emax@yahoogroups.com, "bty54193247" <goodrobot@...> wrote:
> >
> > Hello Tristan,
> > 
> > Many thanks indeed for your reply. I think the motherboard swap
> sounds like a very 
> good 
> > option.....I'm going to take the two units apart today, and see if
> I can create a working 
> > 8mb keyboard!!
> > I'll let you know how I get on.
> > 
> > All the best
> > 
> > Dave
> > 
> > 
> > 
> > 
> > 
> > --- In emax@yahoogroups.com, tu@ wrote:
> > >
> > > Hello Dave,
> > > 
> > > While you can physically install the daughter board in your Emax
> II keyboard, the 
> > memory will not 
> > > be recognised until the internal Emax II EEPROM is updated. But
> to do that you need 
> to 
> > run a 
> > > memory install disk which will write some data into the EEPROM.
> These install disks 
> are 
> > > unfortunately rather rare. But its possible someone on the list
> may have one, or a 
> copy 
> > of the disk 
> > > image to enable you to make your own. The only other alternatives
> are to use the 
> adjust 
> > features 
> > > option in the diagnostics menu  to perform a manual install or to
> remove and hack 
> the 
> > EEPROM 
> > > directly. I don't know what the manual install codes are, or what
> bits to hack on the 
> > EEPROM, so 
> > > these are probably not great options :P
> > > 
> > > BTW, the daughter board only has a maximum of 6MB of RAM
> installed. The Emax II 
> > motherboard 
> > > will have either 1MB or 2MB. It is possible to upgrade a 1MB
> motherboard to 2MB by 
> > replacing the 
> > > RAM chips with a higher capacity chip and changing some PALs. But
> I think even this 
> > upgrade 
> > > requires a change to the EEPROM, so you are stuck with the same
> problem... Actually, 
> I 
> > just did 
> > > some checking and it seems the daughter board also requires
> different PALs to be 
> > installed if it is 
> > > used with an Emax II with 1MB base RAM compared compared to one
> with 2MB base 
> > RAM. 
> > > 
> > > Something else you could consider is transplanting the
> motherboard from your Emax 
> II 
> > rack into 
> > > the Emax II keyboard. Because the motherboard comes with the
> EEPROM, the 
> keyboard 
> > would 
> > > then be able to use the daughter board and have 8MB of RAM. I
> believe the 
> > motherboards are 
> > > identical, but I cannot be sure. One small difference between the
> rack and the 
> keyboard 
> > is that the 
> > > keyboard allows you to set the LCD contrast from the master menu
> whereas the rack 
> > has a trim 
> > > pot mounted on the front panel that must be manually adjusted.
> But it is possible this 
> > difference is 
> > > only to do with the front panel board and not the motherboard
> itself.
> > > 
> > > /Tristan  
> > > 
> > > Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> > > 
> > > >
> > > Hello all,
> > > 
> > > Well, it looks as if my Emax II is beyond repair, (Output board,
> and power supply not 
> > > working), but I'm getting it checked over anyway, just in case it
> can be repaired.
> > > If I can't get it repaired, I have an option to improve my Emax
> II keyboard. My Emax II 
> > rack 
> > > was fitted with a daughter board, with 8MB of RAM, (7MB on
> daughter board, 1MB on 
> > main 
> > > board?). 
> > > It would be great if I could install the daughter board in my
> Emax II keyboard, along 
> > with the 
> > > RAM......how would I go about doing this?
> > > My Emax II keyboard has 1MB RAM, and has the stereo option.
> > > And help with the above would be greatly appreciated.
> > > 
> > > All the best
> > > 
> > > Dave
> > > 
> > >  
> > > Messages in this topic (1) Reply (via web post) | Start a new
> topic 
> > > Messages | Files | Photos | Links | Database | Polls | Members |
> Calendar 
> > > Emax and Emax II User's Group Website
> > > 
> > > http://www.silveriafamily.com 
> > > MARKETPLACE
> > > 
> > > From kitchen basics to easy recipes - join the Group from Kraft
> Foods 
> > >  
> > > Change settings via the Web (Yahoo! ID required) 
> > > Change settings via email: Switch delivery to Daily Digest |
> Switch format to 
> Traditional 
> > > Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe 
> > > 
> > > Recent Activity
> > > 
> > >  4
> > > 
> > > New Members
> > > Visit Your Group 
> > > Yahoo! News
> > > Odd News
> > > You won't believe
> > > it, but it's true
> > > Ads on Yahoo!
> > > Learn more now.
> > > Reach customers
> > > searching for you.
> > > Drive Traffic
> > > Sponsored Search
> > > can help increase
> > > your site traffic.
> > > 
> > > .
> > >
> >
> 
> 
> 
>

--- In emax@yahoogroups.com, "bty54193247" <goodrobot@...> wrote:
> are all the outputs dead if they then it sounds like the power line
that feed the filter ic have gone down thats 12v and -12v rails
 also check the ribbon cable is seated properly.

all electronic equipment can be fixed as long as the ic are not fried 
especially the legacy one produced by emu

if your man cant fix it send it to me

> Hello Jammie,
> 
> I've decided to get the rack working. A guy I know in Southampton
will rebuild the power 
> supply for £35 - £40 + parts.
> The other issue is the output board. I'm going to take it over to
him next week to have a 
> look at. As the output board was in perfect working order a couple
of weeks ago, I'm 
> hoping it is something simple, in which case it shouldn't cost much
to repair.
> 
> In all honesty, I was hoping that I could just transfer the
motherboard, and daughterboard 
> into my Emax II keyboard, I would then fit a HD, and I would be a
happy chappy. OK, the 
> remaining Emax II rack parts would be surplus to requirement, but I
know there would be 
> plenty of parts that other board user would be able to make use of.
> 
> Many thanks again
> 
> All the best
> 
> Dave
> 
> 
> 
> --- In emax@yahoogroups.com, "jammie.emma" <jammie.emma@> wrote:
> >
> > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > >if the mother board works then its just a power supply issue this
> > should cost you max £80 parts and labour
> > 
> >  jammie
> > > Hello Tristan,
> > > 
> > > Well, I tried the motherboard swap, and the Emax II rack motherboard
> > does indeed work 
> > > with the Emax II keyboard, but, for some reason the extra memory
> > doesn't appear, which 
> > > is quite odd.....I can't figure out why?
> > > As a sub note. You mentioned that I might not be able to adjust the
> > contrast after the 
> > > transplant,  as the contrast on the rack is adjustable via a panel
> > button on the rack. The 
> > > strange thing is, I was able to adjust the contrast via the slider.
> > > Just a thought, could there be a chip on one of the other two boards
> > (output, front 
> > > button/LCD) that would block the use of the additional memory on the
> > transplanted 
> > > motherboard?
> > > I was really hopeful when I'd put everything back together again,
> > and the keyboard fired 
> > > up, but after checking the memory, I found that I only had an
> > additional 1mb of memory, 
> > > rather than the 7mb I had hoped for, but hey, at least I now know
> > that the boards are 
> > > interchangeable, which is good to know!!
> > > Many thanks indeed again for all of your help and advice.
> > > 
> > > 
> > > All the best
> > > 
> > > Dave
> > > 
> > > 
> > > 
> > > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > > >
> > > > Hello Tristan,
> > > > 
> > > > Many thanks indeed for your reply. I think the motherboard swap
> > sounds like a very 
> > > good 
> > > > option.....I'm going to take the two units apart today, and see if
> > I can create a working 
> > > > 8mb keyboard!!
> > > > I'll let you know how I get on.
> > > > 
> > > > All the best
> > > > 
> > > > Dave
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > --- In emax@yahoogroups.com, tu@ wrote:
> > > > >
> > > > > Hello Dave,
> > > > > 
> > > > > While you can physically install the daughter board in your Emax
> > II keyboard, the 
> > > > memory will not 
> > > > > be recognised until the internal Emax II EEPROM is updated. But
> > to do that you need 
> > > to 
> > > > run a 
> > > > > memory install disk which will write some data into the EEPROM.
> > These install disks 
> > > are 
> > > > > unfortunately rather rare. But its possible someone on the list
> > may have one, or a 
> > > copy 
> > > > of the disk 
> > > > > image to enable you to make your own. The only other
> > alternatives are to use the 
> > > adjust 
> > > > features 
> > > > > option in the diagnostics menu  to perform a manual install or
> > to remove and hack 
> > > the 
> > > > EEPROM 
> > > > > directly. I don't know what the manual install codes are, or
> > what bits to hack on the 
> > > > EEPROM, so 
> > > > > these are probably not great options :P
> > > > > 
> > > > > BTW, the daughter board only has a maximum of 6MB of RAM
> > installed. The Emax II 
> > > > motherboard 
> > > > > will have either 1MB or 2MB. It is possible to upgrade a 1MB
> > motherboard to 2MB by 
> > > > replacing the 
> > > > > RAM chips with a higher capacity chip and changing some PALs.
> > But I think even this 
> > > > upgrade 
> > > > > requires a change to the EEPROM, so you are stuck with the same
> > problem... Actually, 
> > > I 
> > > > just did 
> > > > > some checking and it seems the daughter board also requires
> > different PALs to be 
> > > > installed if it is 
> > > > > used with an Emax II with 1MB base RAM compared compared to one
> > with 2MB base 
> > > > RAM. 
> > > > > 
> > > > > Something else you could consider is transplanting the
> > motherboard from your Emax 
> > > II 
> > > > rack into 
> > > > > the Emax II keyboard. Because the motherboard comes with the
> > EEPROM, the 
> > > keyboard 
> > > > would 
> > > > > then be able to use the daughter board and have 8MB of RAM. I
> > believe the 
> > > > motherboards are 
> > > > > identical, but I cannot be sure. One small difference between
> > the rack and the 
> > > keyboard 
> > > > is that the 
> > > > > keyboard allows you to set the LCD contrast from the master menu
> > whereas the rack 
> > > > has a trim 
> > > > > pot mounted on the front panel that must be manually adjusted.
> > But it is possible this 
> > > > difference is 
> > > > > only to do with the front panel board and not the motherboard
> > itself.
> > > > > 
> > > > > /Tristan  
> > > > > 
> > > > > Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> > > > > 
> > > > > >
> > > > > Hello all,
> > > > > 
> > > > > Well, it looks as if my Emax II is beyond repair, (Output board,
> > and power supply not 
> > > > > working), but I'm getting it checked over anyway, just in case
> > it can be repaired.
> > > > > If I can't get it repaired, I have an option to improve my Emax
> > II keyboard. My Emax II 
> > > > rack 
> > > > > was fitted with a daughter board, with 8MB of RAM, (7MB on
> > daughter board, 1MB on 
> > > > main 
> > > > > board?). 
> > > > > It would be great if I could install the daughter board in my
> > Emax II keyboard, along 
> > > > with the 
> > > > > RAM......how would I go about doing this?
> > > > > My Emax II keyboard has 1MB RAM, and has the stereo option.
> > > > > And help with the above would be greatly appreciated.
> > > > > 
> > > > > All the best
> > > > > 
> > > > > Dave
> > > > > 
> > > > >  
> > > > > Messages in this topic (1) Reply (via web post) | Start a
new topic 

> > > > > Messages | Files | Photos | Links | Database | Polls | Members |
> > Calendar 
> > > > > Emax and Emax II User's Group Website
> > > > > 
> > > > > http://www.silveriafamily.com 
> > > > > MARKETPLACE
> > > > > 
> > > > > From kitchen basics to easy recipes - join the Group from Kraft
> > Foods 
> > > > >  
> > > > > Change settings via the Web (Yahoo! ID required) 
> > > > > Change settings via email: Switch delivery to Daily Digest |
> > Switch format to 
> > > Traditional 
> > > > > Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe 
> > > > > 
> > > > > Recent Activity
> > > > > 
> > > > >  4
> > > > > 
> > > > > New Members
> > > > > Visit Your Group 
> > > > > Yahoo! News
> > > > > Odd News
> > > > > You won't believe
> > > > > it, but it's true
> > > > > Ads on Yahoo!
> > > > > Learn more now.
> > > > > Reach customers
> > > > > searching for you.
> > > > > Drive Traffic
> > > > > Sponsored Search
> > > > > can help increase
> > > > > your site traffic.
> > > > > 
> > > > > .
> > > > >
> > > >
> > >
> >
>

Hello Jammie,

I will indeed send it to you if he cant fix it.
I noticed in one of your posts you quoted £30 fixed labour + parts.....is that correct?
Hope you have a fantastic New Year's eve. All the best for 2009!!!

Dave



--- In emax@yahoogroups.com, "jammie.emma" <jammie.emma@...> wrote:

>
> --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > are all the outputs dead if they then it sounds like the power line
> that feed the filter ic have gone down thats 12v and -12v rails
>  also check the ribbon cable is seated properly.
> 
> all electronic equipment can be fixed as long as the ic are not fried 
> especially the legacy one produced by emu
> 
> if your man cant fix it send it to me
> 
> > Hello Jammie,
> > 
> > I've decided to get the rack working. A guy I know in Southampton
> will rebuild the power 
> > supply for £35 - £40 + parts.
> > The other issue is the output board. I'm going to take it over to
> him next week to have a 
> > look at. As the output board was in perfect working order a couple
> of weeks ago, I'm 
> > hoping it is something simple, in which case it shouldn't cost much
> to repair.
> > 
> > In all honesty, I was hoping that I could just transfer the
> motherboard, and daughterboard 
> > into my Emax II keyboard, I would then fit a HD, and I would be a
> happy chappy. OK, the 
> > remaining Emax II rack parts would be surplus to requirement, but I
> know there would be 
> > plenty of parts that other board user would be able to make use of.
> > 
> > Many thanks again
> > 
> > All the best
> > 
> > Dave
> > 
> > 
> > 
> > --- In emax@yahoogroups.com, "jammie.emma" <jammie.emma@> wrote:
> > >
> > > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > > >if the mother board works then its just a power supply issue this
> > > should cost you max £80 parts and labour
> > > 
> > >  jammie
> > > > Hello Tristan,
> > > > 
> > > > Well, I tried the motherboard swap, and the Emax II rack motherboard
> > > does indeed work 
> > > > with the Emax II keyboard, but, for some reason the extra memory
> > > doesn't appear, which 
> > > > is quite odd.....I can't figure out why?
> > > > As a sub note. You mentioned that I might not be able to adjust the
> > > contrast after the 
> > > > transplant,  as the contrast on the rack is adjustable via a panel
> > > button on the rack. The 
> > > > strange thing is, I was able to adjust the contrast via the slider.
> > > > Just a thought, could there be a chip on one of the other two boards
> > > (output, front 
> > > > button/LCD) that would block the use of the additional memory on the
> > > transplanted 
> > > > motherboard?
> > > > I was really hopeful when I'd put everything back together again,
> > > and the keyboard fired 
> > > > up, but after checking the memory, I found that I only had an
> > > additional 1mb of memory, 
> > > > rather than the 7mb I had hoped for, but hey, at least I now know
> > > that the boards are 
> > > > interchangeable, which is good to know!!
> > > > Many thanks indeed again for all of your help and advice.
> > > > 
> > > > 
> > > > All the best
> > > > 
> > > > Dave
> > > > 
> > > > 
> > > > 
> > > > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > > > >
> > > > > Hello Tristan,
> > > > > 
> > > > > Many thanks indeed for your reply. I think the motherboard swap
> > > sounds like a very 
> > > > good 
> > > > > option.....I'm going to take the two units apart today, and see if
> > > I can create a working 
> > > > > 8mb keyboard!!
> > > > > I'll let you know how I get on.
> > > > > 
> > > > > All the best
> > > > > 
> > > > > Dave
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > --- In emax@yahoogroups.com, tu@ wrote:
> > > > > >
> > > > > > Hello Dave,
> > > > > > 
> > > > > > While you can physically install the daughter board in your Emax
> > > II keyboard, the 
> > > > > memory will not 
> > > > > > be recognised until the internal Emax II EEPROM is updated. But
> > > to do that you need 
> > > > to 
> > > > > run a 
> > > > > > memory install disk which will write some data into the EEPROM.
> > > These install disks 
> > > > are 
> > > > > > unfortunately rather rare. But its possible someone on the list
> > > may have one, or a 
> > > > copy 
> > > > > of the disk 
> > > > > > image to enable you to make your own. The only other
> > > alternatives are to use the 
> > > > adjust 
> > > > > features 
> > > > > > option in the diagnostics menu  to perform a manual install or
> > > to remove and hack 
> > > > the 
> > > > > EEPROM 
> > > > > > directly. I don't know what the manual install codes are, or
> > > what bits to hack on the 
> > > > > EEPROM, so 
> > > > > > these are probably not great options :P
> > > > > > 
> > > > > > BTW, the daughter board only has a maximum of 6MB of RAM
> > > installed. The Emax II 
> > > > > motherboard 
> > > > > > will have either 1MB or 2MB. It is possible to upgrade a 1MB
> > > motherboard to 2MB by 
> > > > > replacing the 
> > > > > > RAM chips with a higher capacity chip and changing some PALs.
> > > But I think even this 
> > > > > upgrade 
> > > > > > requires a change to the EEPROM, so you are stuck with the same
> > > problem... Actually, 
> > > > I 
> > > > > just did 
> > > > > > some checking and it seems the daughter board also requires
> > > different PALs to be 
> > > > > installed if it is 
> > > > > > used with an Emax II with 1MB base RAM compared compared to one
> > > with 2MB base 
> > > > > RAM. 
> > > > > > 
> > > > > > Something else you could consider is transplanting the
> > > motherboard from your Emax 
> > > > II 
> > > > > rack into 
> > > > > > the Emax II keyboard. Because the motherboard comes with the
> > > EEPROM, the 
> > > > keyboard 
> > > > > would 
> > > > > > then be able to use the daughter board and have 8MB of RAM. I
> > > believe the 
> > > > > motherboards are 
> > > > > > identical, but I cannot be sure. One small difference between
> > > the rack and the 
> > > > keyboard 
> > > > > is that the 
> > > > > > keyboard allows you to set the LCD contrast from the master menu
> > > whereas the rack 
> > > > > has a trim 
> > > > > > pot mounted on the front panel that must be manually adjusted.
> > > But it is possible this 
> > > > > difference is 
> > > > > > only to do with the front panel board and not the motherboard
> > > itself.
> > > > > > 
> > > > > > /Tristan  
> > > > > > 
> > > > > > Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> > > > > > 
> > > > > > >
> > > > > > Hello all,
> > > > > > 
> > > > > > Well, it looks as if my Emax II is beyond repair, (Output board,
> > > and power supply not 
> > > > > > working), but I'm getting it checked over anyway, just in case
> > > it can be repaired.
> > > > > > If I can't get it repaired, I have an option to improve my Emax
> > > II keyboard. My Emax II 
> > > > > rack 
> > > > > > was fitted with a daughter board, with 8MB of RAM, (7MB on
> > > daughter board, 1MB on 
> > > > > main 
> > > > > > board?). 
> > > > > > It would be great if I could install the daughter board in my
> > > Emax II keyboard, along 
> > > > > with the 
> > > > > > RAM......how would I go about doing this?
> > > > > > My Emax II keyboard has 1MB RAM, and has the stereo option.
> > > > > > And help with the above would be greatly appreciated.
> > > > > > 
> > > > > > All the best
> > > > > > 
> > > > > > Dave
> > > > > > 
> > > > > >  
> > > > > > Messages in this topic (1) Reply (via web post) | Start a
> new topic 
> > > > > > Messages | Files | Photos | Links | Database | Polls | Members |
> > > Calendar 
> > > > > > Emax and Emax II User's Group Website
> > > > > > 
> > > > > > http://www.silveriafamily.com 
> > > > > > MARKETPLACE
> > > > > > 
> > > > > > From kitchen basics to easy recipes - join the Group from Kraft
> > > Foods 
> > > > > >  
> > > > > > Change settings via the Web (Yahoo! ID required) 
> > > > > > Change settings via email: Switch delivery to Daily Digest |
> > > Switch format to 
> > > > Traditional 
> > > > > > Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe 
> > > > > > 
> > > > > > Recent Activity
> > > > > > 
> > > > > >  4
> > > > > > 
> > > > > > New Members
> > > > > > Visit Your Group 
> > > > > > Yahoo! News
> > > > > > Odd News
> > > > > > You won't believe
> > > > > > it, but it's true
> > > > > > Ads on Yahoo!
> > > > > > Learn more now.
> > > > > > Reach customers
> > > > > > searching for you.
> > > > > > Drive Traffic
> > > > > > Sponsored Search
> > > > > > can help increase
> > > > > > your site traffic.
> > > > > > 
> > > > > > .
> > > > > >
> > > > >
> > > >
> > >
> >
>

--- In emax@yahoogroups.com, "bty54193247" <goodrobot@...> wrote:
> yes that is correct if you dismantle it yourself if i have to
dismantle it then i charge more

jammie 

> Hello Jammie,
> 
> I will indeed send it to you if he cant fix it.
> I noticed in one of your posts you quoted £30 fixed labour +
parts.....is that correct?
> Hope you have a fantastic New Year's eve. All the best for 2009!!!
> 
> Dave
> 
> 
> 
> --- In emax@yahoogroups.com, "jammie.emma" <jammie.emma@> wrote:
> >
> > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > > are all the outputs dead if they then it sounds like the power line
> > that feed the filter ic have gone down thats 12v and -12v rails
> >  also check the ribbon cable is seated properly.
> > 
> > all electronic equipment can be fixed as long as the ic are not fried 
> > especially the legacy one produced by emu
> > 
> > if your man cant fix it send it to me
> > 
> > > Hello Jammie,
> > > 
> > > I've decided to get the rack working. A guy I know in Southampton
> > will rebuild the power 
> > > supply for £35 - £40 + parts.
> > > The other issue is the output board. I'm going to take it over to
> > him next week to have a 
> > > look at. As the output board was in perfect working order a couple
> > of weeks ago, I'm 
> > > hoping it is something simple, in which case it shouldn't cost much
> > to repair.
> > > 
> > > In all honesty, I was hoping that I could just transfer the
> > motherboard, and daughterboard 
> > > into my Emax II keyboard, I would then fit a HD, and I would be a
> > happy chappy. OK, the 
> > > remaining Emax II rack parts would be surplus to requirement, but I
> > know there would be 
> > > plenty of parts that other board user would be able to make use of.
> > > 
> > > Many thanks again
> > > 
> > > All the best
> > > 
> > > Dave
> > > 
> > > 
> > > 
> > > --- In emax@yahoogroups.com, "jammie.emma" <jammie.emma@> wrote:
> > > >
> > > > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > > > >if the mother board works then its just a power supply issue this
> > > > should cost you max £80 parts and labour
> > > > 
> > > >  jammie
> > > > > Hello Tristan,
> > > > > 
> > > > > Well, I tried the motherboard swap, and the Emax II rack
motherboard
> > > > does indeed work 
> > > > > with the Emax II keyboard, but, for some reason the extra memory
> > > > doesn't appear, which 
> > > > > is quite odd.....I can't figure out why?
> > > > > As a sub note. You mentioned that I might not be able to
adjust the
> > > > contrast after the 
> > > > > transplant,  as the contrast on the rack is adjustable via a
panel
> > > > button on the rack. The 
> > > > > strange thing is, I was able to adjust the contrast via the
slider.
> > > > > Just a thought, could there be a chip on one of the other
two boards
> > > > (output, front 
> > > > > button/LCD) that would block the use of the additional
memory on the
> > > > transplanted 
> > > > > motherboard?
> > > > > I was really hopeful when I'd put everything back together
again,
> > > > and the keyboard fired 
> > > > > up, but after checking the memory, I found that I only had an
> > > > additional 1mb of memory, 
> > > > > rather than the 7mb I had hoped for, but hey, at least I now
know
> > > > that the boards are 
> > > > > interchangeable, which is good to know!!
> > > > > Many thanks indeed again for all of your help and advice.
> > > > > 
> > > > > 
> > > > > All the best
> > > > > 
> > > > > Dave
> > > > > 
> > > > > 
> > > > > 
> > > > > --- In emax@yahoogroups.com, "bty54193247" <goodrobot@> wrote:
> > > > > >
> > > > > > Hello Tristan,
> > > > > > 
> > > > > > Many thanks indeed for your reply. I think the motherboard
swap
> > > > sounds like a very 
> > > > > good 
> > > > > > option.....I'm going to take the two units apart today,
and see if
> > > > I can create a working 
> > > > > > 8mb keyboard!!
> > > > > > I'll let you know how I get on.
> > > > > > 
> > > > > > All the best
> > > > > > 
> > > > > > Dave
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > --- In emax@yahoogroups.com, tu@ wrote:
> > > > > > >
> > > > > > > Hello Dave,
> > > > > > > 
> > > > > > > While you can physically install the daughter board in
your Emax
> > > > II keyboard, the 
> > > > > > memory will not 
> > > > > > > be recognised until the internal Emax II EEPROM is
updated. But
> > > > to do that you need 
> > > > > to 
> > > > > > run a 
> > > > > > > memory install disk which will write some data into the
EEPROM.
> > > > These install disks 
> > > > > are 
> > > > > > > unfortunately rather rare. But its possible someone on
the list
> > > > may have one, or a 
> > > > > copy 
> > > > > > of the disk 
> > > > > > > image to enable you to make your own. The only other
> > > > alternatives are to use the 
> > > > > adjust 
> > > > > > features 
> > > > > > > option in the diagnostics menu  to perform a manual
install or
> > > > to remove and hack 
> > > > > the 
> > > > > > EEPROM 
> > > > > > > directly. I don't know what the manual install codes are, or
> > > > what bits to hack on the 
> > > > > > EEPROM, so 
> > > > > > > these are probably not great options :P
> > > > > > > 
> > > > > > > BTW, the daughter board only has a maximum of 6MB of RAM
> > > > installed. The Emax II 
> > > > > > motherboard 
> > > > > > > will have either 1MB or 2MB. It is possible to upgrade a 1MB
> > > > motherboard to 2MB by 
> > > > > > replacing the 
> > > > > > > RAM chips with a higher capacity chip and changing some
PALs.
> > > > But I think even this 
> > > > > > upgrade 
> > > > > > > requires a change to the EEPROM, so you are stuck with
the same
> > > > problem... Actually, 
> > > > > I 
> > > > > > just did 
> > > > > > > some checking and it seems the daughter board also requires
> > > > different PALs to be 
> > > > > > installed if it is 
> > > > > > > used with an Emax II with 1MB base RAM compared compared
to one
> > > > with 2MB base 
> > > > > > RAM. 
> > > > > > > 
> > > > > > > Something else you could consider is transplanting the
> > > > motherboard from your Emax 
> > > > > II 
> > > > > > rack into 
> > > > > > > the Emax II keyboard. Because the motherboard comes with the
> > > > EEPROM, the 
> > > > > keyboard 
> > > > > > would 
> > > > > > > then be able to use the daughter board and have 8MB of
RAM. I
> > > > believe the 
> > > > > > motherboards are 
> > > > > > > identical, but I cannot be sure. One small difference
between
> > > > the rack and the 
> > > > > keyboard 
> > > > > > is that the 
> > > > > > > keyboard allows you to set the LCD contrast from the
master menu
> > > > whereas the rack 
> > > > > > has a trim 
> > > > > > > pot mounted on the front panel that must be manually
adjusted.
> > > > But it is possible this 
> > > > > > difference is 
> > > > > > > only to do with the front panel board and not the
motherboard
> > > > itself.
> > > > > > > 
> > > > > > > /Tristan  
> > > > > > > 
> > > > > > > Tuesday, December 30, 2008, 1:31:40 AM, you wrote:
> > > > > > > 
> > > > > > > >
> > > > > > > Hello all,
> > > > > > > 
> > > > > > > Well, it looks as if my Emax II is beyond repair,
(Output board,
> > > > and power supply not 
> > > > > > > working), but I'm getting it checked over anyway, just
in case
> > > > it can be repaired.
> > > > > > > If I can't get it repaired, I have an option to improve
my Emax
> > > > II keyboard. My Emax II 
> > > > > > rack 
> > > > > > > was fitted with a daughter board, with 8MB of RAM, (7MB on
> > > > daughter board, 1MB on 
> > > > > > main 
> > > > > > > board?). 
> > > > > > > It would be great if I could install the daughter board
in my
> > > > Emax II keyboard, along 
> > > > > > with the 
> > > > > > > RAM......how would I go about doing this?
> > > > > > > My Emax II keyboard has 1MB RAM, and has the stereo option.
> > > > > > > And help with the above would be greatly appreciated.
> > > > > > > 
> > > > > > > All the best
> > > > > > > 
> > > > > > > Dave
> > > > > > > 
> > > > > > >  
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