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2014-06-03 by turkanaman2@...
2014-06-03 by monsieur escargot
new to emax forum, just bought an Emax SE version 2 rev. C from Ebay. I'm learning the OS and having lots of fun but my floppy is becoming unreliable, sometimes it reads/writes fine, sometimes I get errors. Anybody have a spare SCSI kit for sale? thanks!
2014-06-07 by sweetsynthchuck@...
2014-06-07 by Ted Summers
buying the kit is simple finding someone that can install it is a different question.
any one in europe fit these kits?
if so much is the going rate?
2014-06-07 by Laurent/LIFELIKE
Ted again thanks :-) I know a friend who could do this for me in Paris. But where can i buy this kit? Also that scsi that is not recognised either internal or external HD/CD what could this be? Can this be fixed as well with a simple chip replacement/resistor soldering/removal ? Dear emax friends, are some of you ok to sell one of those kits to me? By the way any chances that one of you could sell me an expansion board? ;-) Envoyé de mon iPhone
> Le 7 juin 2014 à 08:32, "Ted Summers djtbs1@... [emax]" <emax@yahoogroups.com> a écrit : > > If you print out the upgrade instructions and take the kit to any decent electronics repair shop, they should be able to do it for you. > It takes me about 35 minutes to complete the modifications to the board, and another 10 minutes or so to test it out and verify it's working. So figure labor would likely be 1 hour - 1.5 hours at the shop rate. > > I expect you would probably have to take a SCSI drive with you so they could test it.... or if your local university has electronics courses, you might find a student that would be interested to do it for you as a project, since they gain practical experience... > > -Ted > > >> On Fri, Jun 6, 2014 at 11:24 PM, sweetsynthchuck@... [emax] <emax@yahoogroups.com> wrote: >> >> buying the kit is simple finding someone that can install it is a different question. >> >> any one in europe fit these kits? >> >> if so much is the going rate? >> > >
2014-06-07 by sweetsynthchuck@...
2014-06-07 by Laurent/LIFELIKE
Yes i know, thanks for helping, i meant memory expansion board :-) Envoyé de mon iPhone
> Le 7 juin 2014 à 09:24, "sweetsynthchuck@yahoo.com [emax]" <emax@yahoogroups.com> a écrit : > > your emax 2 problem cannot be rectified with a emax 1 scsi kit > >
2014-06-07 by sweetsynthchuck@...
2014-06-07 by sweetsynthchuck@...
2014-06-07 by - LIFELIKE -
2014-06-07 by sweetsynthchuck@...
2014-06-07 by - LIFELIKE -
;looks like you can fit another 4mb, 8slots = 1mb
so if you have 2 already installed you should be able to make it 6mb
2014-06-07 by sweetsynthchuck@...
2014-06-07 by Ted Summers
ok thanks, great news!
looks like you can fit another 4mb, 8slots = 1mb
so if you have 2 already installed you should be able to make it 6mb
2014-06-07 by - LIFELIKE -
Sorry, but I don't think that's how it works.If there is someone with more expertise, please correct me….but this is my understandingAn Emax 2 either has 1 MB or 2MB on the main board.Where 1 MB you use one set of addressable RAM chips, for 2MB you use the other set (not populated in this case - I believe this board has 1MB and can be checked using "Free Memory" menu option).You have to have the correct support chips in addition to properly address the specific set of chips in use.Unless you have the correct PALs, then you cannot just put in more chips to make 2MB.If you have the correct PALs, you could make it 2MB with the correct chips populating the empty spaces- but it holds 2MB and no more on the main board.In addition, when you add the RAM expansion board, a 1MB on the main board maxes at 7MB (again with the correct PAL chips and enable code), 2MB can get the 8MB.This is enabled or prevented by the installed PAL (locking) chip set and the unlock code / update disk that installs the code (one use disk) to update parameters in the eeeprom.More about the correct PAL combinations and memory chip locations is in the memory upgrade guide for the expansion board (available on the web).Please note - you can't just "copy" PALs- they are fused to prevent reading out the locking algorithm.There have been efforts to break PALs by the Arcade Emulation teams even by making special cracking boards and software modules.PAL "L" series have been broken, and can be read out.Last word was that PALs that are "R" (R = registered PAL16R4ACN) like Emax uses are STILL not broken, to this day.The only reason I have the Emax 1 SCSI TIM PAL (which allows the SCSI enable features), is I was given the original factory binary by Rob at Emulator Archvie.It was proprietary format and did not work "as is"…. I had to research and work through process to get it converted to a format for use with my programmer.Please note that programming a PAL requires an expensive programmer.A $25 or even $200 IC / EPROM programmer won't program them. You need a DATAMAN 48 ($1200) or similar to program them. The cheapest programmer I have seen that *MAY* program them is $800…While that may not be what you want to hear- it is better to know truth, then to make many attempts wasting time and $$$$ trying to get something to work that cannot be made to work.Regards,TedOn Jun 7, 2014, at 1:37 AM, - LIFELIKE - lifelike@... [emax] wrote:
ok thanks, great news!
Le 7 juin 2014 à 10:36, "sweetsynthchuck@... [emax]" <emax@yahoogroups.com> a écrit :looks like you can fit another 4mb, 8slots = 1mb
so if you have 2 already installed you should be able to make it 6mb
2014-06-07 by - LIFELIKE -
-TedI expect you would probably have to take a SCSI drive with you so they could test it.... or if your local university has electronics courses, you might find a student that would be interested to do it for you as a project, since they gain practical experience...If you print out the upgrade instructions and take the kit to any decent electronics repair shop, they should be able to do it for you.It takes me about 35 minutes to complete the modifications to the board, and another 10 minutes or so to test it out and verify it's working. So figure labor would likely be 1 hour - 1.5 hours at the shop rate.
On Fri, Jun 6, 2014 at 11:24 PM, sweetsynthchuck@... [emax] <emax@yahoogroups.com> wrote:
buying the kit is simple finding someone that can install it is a different question.
any one in europe fit these kits?
if so much is the going rate?
2014-06-07 by Ted Summers
Thanks Ted, where can i get this stereo kit ?
-TedI expect you would probably have to take a SCSI drive with you so they could test it.... or if your local university has electronics courses, you might find a student that would be interested to do it for you as a project, since they gain practical experience...If you print out the upgrade instructions and take the kit to any decent electronics repair shop, they should be able to do it for you.It takes me about 35 minutes to complete the modifications to the board, and another 10 minutes or so to test it out and verify it's working. So figure labor would likely be 1 hour - 1.5 hours at the shop rate.
On Fri, Jun 6, 2014 at 11:24 PM, sweetsynthchuck@... [emax] <emax@yahoogroups.com> wrote:
buying the kit is simple finding someone that can install it is a different question.
any one in europe fit these kits?
if so much is the going rate?
2014-06-07 by Laurent/LIFELIKE
Ok i think it will be the same painfull way for me, i'll try to pick up one with 8megs asap, thanks for all your explanations Ted! Envoyé de mon iPhone
> Le 7 juin 2014 à 18:28, "Ted Summers djtbs1@... [emax]" <emax@yahoogroups.com> a écrit : > > I have seen 2 stereo kit ever come up for sale in 8 years,,,, > > And no memory kit available either. > > I did what you are thinking- I had a MONO unit I picked up not knowing the upgrades not available. > I tried to find out if I could re-make STEREO- but only 2 people on group showed any interest. > > And I would have to buy 10 STEREO chip at cost of $300+ before anything else- so I let the idea go. > Then find that there are no RAM kits or way to upgrade RAM if you don't have the expansion boards, so had to drop that idea as well. > > > I found STEREO unit (but unknown memory size) on Craigslist and bought it for like $275…. it arrived and keyboard was destroyed BUT boards OK AND 8MB. :-) > > I swap boards around and sold off my extra boards from MONO to make 1 STEREO 8MB unit in good keyboard case…. > > Total cost for me of two keyboard was $450 to get a good one… > > That was my experience with it. > > Regards, > Ted > > > > > > On Jun 7, 2014, at 2:38 AM, - LIFELIKE - lifelike@... [emax] wrote: > > > Thanks Ted, where can i get this stereo kit ? > > Anyone here willing to sell one to me ? > > >> Le 7 juin 2014 à 08:32, Ted Summers djtbs1@... [emax] <emax@yahoogroups.com> a écrit : >> >> >> >> If you print out the upgrade instructions and take the kit to any decent electronics repair shop, they should be able to do it for you. >> It takes me about 35 minutes to complete the modifications to the board, and another 10 minutes or so to test it out and verify it's working. So figure labor would likely be 1 hour - 1.5 hours at the shop rate. >> >> I expect you would probably have to take a SCSI drive with you so they could test it.... or if your local university has electronics courses, you might find a student that would be interested to do it for you as a project, since they gain practical experience... >> >> -Ted >> >> >>> On Fri, Jun 6, 2014 at 11:24 PM, sweetsynthchuck@... [emax] <emax@yahoogroups.com> wrote: >>> >>> buying the kit is simple finding someone that can install it is a different question. >>> >>> any one in europe fit these kits? >>> >>> if so much is the going rate? >>> > > > >