[sdiy] Oberheim Matrix 6r ROM image needed

[Csaba Zvekan]

Here is the update to my repair job for the Matrix 6r. The Willem Programmer V5 running on Windows 7 was a bit of a tackle and took me some time. 60 updates plus configuration on my PC machine since Feb 2012 as i’m a Mac user. After that I finally could install the Eprom software plus the patches IO.dll to make the software work on 64-bit technology. Took me some time. Once that was up it was a matter of 30 seconds of  reading out the ROM and comparing with the factory binaries. And my hunch was right. The part had a “bit rot” and computer dementia. So I erased the part and reburned it, replaced the Patch /RAM battery, various capacitors in the power supply, reloaded factory patches via MP3 file and now I’m up and running again working perfectly fine.

Two things that worry me off hand: 1. the connectors with the ribbon cable. Lot’s of problems there in the future and 2. the EPROM 27256. The question is if the actual part needs replacing as well or if it is freshly programmed will the lifetime be another 10-15 years. Isn’t it better to get brand new parts from today and burn them freshly to avoid more problems. Oh and the sockets are really old school. Would be nice to get new machined sockets. And tons of capacitors puhh lots of work.

Many thanks for your help

Csaba

 
On 18 Aug 2014, at 17:20, Csaba Zvekan <czvekan at gmail.com> wrote:

> Yes, they are all completely different firmware. 2.13 is for Matrix 6r while the 2.13a is for Matrix 6. The Matrix 1000 is using a different version called 1.12. 
> 
> Many thanks
> 
> 	
> 
> 
> On 18 Aug 2014, at 16:31, ChristianH <chris at chrismusic.de> wrote:
> 
>> Considering that the 1000 has 800 ROM presets, I wouldn't expect it to
>> have the same firmware as anything else. It *may* be compatible, but
>> most certainly not the same.
>> 
>> And I seem to remember that there are some M6 or M6r SysEx messages that
>> the M1000 ignores. Don't have the manual right now, IIRC some additional
>> performance/effects/combination stuff.
>> 
>> Chris
>> 
>> 
>> 
>> On Mon, 18 Aug 2014 16:03:26 +0200 Andre Majorel <aym-htnys at teaser.fr>
>> wrote:
>> 
>>> On 2014-08-17 23:15 +0200, Csaba Zvekan wrote:
>>> 
>>>> Thank you Terry and many thanks , Andre that?s the one. I
>>>> believe Matrix 1000 and Matrix 6r share somewhat the same
>>>> architecture. Perhaps I could readout the ROM from my Matrix
>>>> 1000 or swap the firmware and see if that solves my problem?
>>> 
>>> From what I've read in the archives of the oberheim Yahoo group,
>>> the Matrix 6 and Matrix 1000 don't respond to all the same MIDI
>>> messages so there are significant differences between their
>>> firmwares.
>>> 
>>> They don't have the same front panels so they the may have
>>> completely different electronics. Could be that, on the Matrix
>>> 1000, writing 0x12 to I/O register 0x34 prepares for reading a
>>> front panel switch but on the Matrix 6R, it shorts two output
>>> ports...
>>> 
>>> This also applies to the M6 vs. M6R, by the way. It would be
>>> pretty perverse but we've all seen worse.
>>> 
>>> Maybe the experts on the oberheim list know ?
>>> 
>>> https://groups.yahoo.com/neo/groups/oberheim/
>>> 
>>> -- 
>>> André Majorel http://www.teaser.fr/~amajorel/
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>> 
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>