Re: Perf EPROMS for sale?
2015-05-05 by richtrix@...
Send snugglepussyisme a message through this forum. He made some for me. Sincerely, Rich Clarke
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New Annotated Matrix 6 Source Code
2015-05-04 by youthvulture@...
Every few months I search the web to see if anyone s attempting upgrades to the Martix 6/6r. I found a link, posted a few days ago, that points to someone s
Perf EPROMS for sale?
2015-05-04 by kloopy@...
Hi team, Does anyone have Drummer, Strummer, Cyclone or other Perf EPROM to sell or burn and send to London UK please? I am reviving one Cyclone that came
Xpander Front Panel Screws
2015-05-01 by rob.mayo@...
Folks, I am missing two of the four small black countersunk screws from the Xpander s front panel. Can you please advise where I can get replacements. Thanks &
Re: [oberheim] Digest Number 963
2015-04-28 by Dan
I would like the parches. thanks Sent from my iPad ... I would like the parches. thanks Sent from my iPad On 28 Apr 2015, at 10:26, oberheim@yahoogroups.com
Re: [oberheim] Re: Matrix 1000 / Matrix 6R Sysex Dump / Utilities Suggestions?
2015-04-27 by Jason Budris
Interested
Re: [oberheim] Matrix 1000 / Matrix 6R Sysex Dump / Utilities Suggestions?
2015-04-27 by Jill Saphic
Have you looked here: http://www.ob6000.de maybe with you having programming skills the free demo would do what you need...? ... On Sat, 25/4/15,
Re: Matrix 1000 / Matrix 6R Sysex Dump / Utilities Suggestions?
2015-04-26 by Thomas Dial
Thanks, Jan. I opted for SysEx Librarian on the Mac, and figured out my previous mistake: I was clicking record one instead of record many. Would anyone
Re: Matrix 1000 / Matrix 6R Sysex Dump / Utilities Suggestions?
2015-04-26 by jan@...
For the Mac, at least, there are tons of alternatives. Possibly the simplest IMHO is the Sysex Librarian http://www.snoize.com/SysExLibrarian/, a simple
Matrix 1000 / Matrix 6R Sysex Dump / Utilities Suggestions?
2015-04-25 by dialtr@...
I own both a Matrix 1000 and a Matrix 6R. I am considering selling the Matrix 1000, but would like to save the patch banks from it first so that I have access
Re: Oberheim Xpander firmware
2015-04-24 by khatri.naeem786@...
Cross referencing with the .bin files that are available from synthparts.com: the two CAS chips are the two chips for the Voice firmware. It looks like the
Re: [oberheim] Re: Finding Clock frequency of my OBXa
2015-04-24 by richtrix@...
Yes Bob your memory is correct on all accounts, I tried a .1uF but it seemed to have little effect on my blips. the 47pf works much better. I m getting a new
Re: [oberheim] Re: Finding Clock frequency of my OBXa
2015-04-23 by Bob Grieb
Hi Rich, I seem to have deleted the old emails. Just to confirm, you have a later(rev 3 schems) Xa? And we were talking about U164, right? Now
Re: Finding Clock frequency of my OBXa
2015-04-22 by richtrix@...
Hi All (bob mostly), Sorry for dropping off for a month on this. I just got overwhelmed with some stuff. I picked back up where we left off tonight and have
Oberheim Xpander firmware
2015-04-19 by khatri.naeem786@...
Hi, I ve just acquired an Xpander that has some issues (like having a voice processor that needs replacing). I m in the process of figuring out if I need to
New file uploaded to oberheim
2015-04-04 by oberheim@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the oberheim group. File : /Oberheim -
Re: Matrix-6 "A" key
2015-04-02 by synthparts@...
Which key do you need? I have a few. Doug synthparts.com
Matrix-6 "A" key
2015-03-31 by isatellite@...
Looking for a Matrix-6 (or 12) key. Also used on OBxK and Akai AX80. Anyone parting out a Matrix-6 or have a spare key they can sell me?
Re: [oberheim] Matrix 6 Aftertouch
2015-03-28 by Alexander Kytasty
Hi! I purchased a used M6 with non-functioning AT. In my case, something heavy had been dropped onto the keys and the long sensor strip under the front of the
Re: [oberheim] Matrix 6 Aftertouch
2015-03-27 by Bob Grieb
Looks like the pressure sensor connects to U17, which is probably a 556.with an ohmmeter you should be able to unplug it from the processor boardand measure
Matrix 6 Aftertouch
2015-03-26 by hoggybogger@...
I have a Matrix 6 and just realized my aftertouch is not working. I haven t opened this up to delve in to it just yet, I am wondering if anyone else has run in
Re: [oberheim] Finding Clock frequency of my OBXa [2 Attachments]
2015-03-24 by richtrix@...
I am thinking that this BlueDSO was a poor purchase. After that first day and those initial videos and pictures not a single voltage reading has been accurate
Re: [oberheim] Do I need to recap my Matrix 6 power supply??
2015-03-23 by Bob Grieb
Interesting. When I bought my Matrix 6R it didn t work.The problem turned out to be that one lead of one of those big caps had come un-soldered from the pc
Re: [oberheim] Do I need to recap my Matrix 6 power supply??
2015-03-23 by Jill Saphic
I was touring with mine when the same problem occurred. The synth repair man I go to for my old gear replaced all of the caps, including the 2 big BLUE ones on
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-22 by Peter Mörck
Haven t been following this thread in detail (and I ve never seen an OBAa in my life) but I just watched the video. I think it s strange at 0:04 that he s
Re: [oberheim] Finding Clock frequency of my OBXa [2 Attachments]
2015-03-22 by Bob Grieb
In the video, over at the left edge the scope seems to be showing a dip in the +5MEM supply. That supply is created by ORing the 5V digital supply and
Re: [oberheim] Finding Clock frequency of my OBXa [2 Attachments]
2015-03-22 by richtrix@...
Hi again Bob, The blips happen at all phases of keypress. They are seemingly random and occur so long as 5-8 are making any kind of sound (attack, sustain,
Re: [oberheim] Finding Clock frequency of my OBXa [2 Attachments]
2015-03-21 by Bob Grieb
Do you get the blips when just holding one or more keys down?Or does it only make that sound right as you are pressing or releasing a key? What voltage do you
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-21 by richtrix@...
I don t know about the signal path to the lower board. I looked over the schematic for a minute but it wasn t overly clear. I m not really experienced with
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-21 by Martin Ator
Does the circuit board use one of the through holes of the socketed chip to make a transistion from the bottom to the top of the board for a power /gnd
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-21 by Bob Grieb
I agree, but that doesn t stop it from happening... From: richtrix@yahoo.com [oberheim] To: oberheim@yahoogroups.com Sent: Friday,
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-21 by richtrix@...
Well I lifted all data pins and all address pins and it is still smooth! So now I will just play with it and see if there are any other strange bugs but with
Re: [oberheim] Do I need to recap my Matrix 6 power supply??
2015-03-20 by Bob Grieb
Also, I noticed that the display and voice bd use +5VA and the CPU uses+5VB, so probably you would want to focus on +5VA first. Bob From:
Re: [oberheim] Do I need to recap my Matrix 6 power supply??
2015-03-20 by Bob Grieb
Interesting problem. With a scope you could set it to trigger if the supply dips a little, And see which supply is dipping. If the dips last long enough,
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-19 by Bob Grieb
To save time, bend out all 8 data bus lines, and install U164 with no data busconnections. Then bend out all of the address too if it still is fixing the
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-19 by Bob Grieb
Hi Rich, There are many CMOS chips in this synth. On my schem, U164 is a 6116 SRAM chip.I don t know exactly how the MIDI kit is set up, or what
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-19 by richtrix@...
Thanks again Bob, I am not going to worry about the memory problem right now as I ve gone back to the midi kit for control. I got my oscilloscope in and was
Re: Oberheim DSX owners wanted
2015-03-18 by dan@...
I started work on this with a great group of testers, and make excellent progress, but then life got in the way and I didn t finish it. I hope to pick up work
DSX COPYING VOICE to CV (page 13) NOT WORKING AS DESCRIBED
2015-03-17 by themilford@...
Anybody try this? Trying to copy a sequence from a track to convert it from Voice to CV … strangely the prompts as listed in the manual are not the same.
Re: Oberheim DSX owners wanted
2015-03-17 by themilford@...
If you are still interested I have Both a DSX and an OB-8. Both are later versions but not final versions. Let me know, I m happy to run any tests. Cheers,
Do I need to recap my Matrix 6 power supply??
2015-03-16 by wbkennedy1@...
I ve been having this problem with my Matrix 6 for a while where the screen flickers on and off and when I am playing the synth and this happens, the sound
Matrix 2001 editor download
2015-03-15 by photoshootjapan@...
Hello! Would anyone happen to have a copy of the demo of the Matrix 2001 editor for the Matrix 6? I m interested in the patch generator and it appears that is
Re: [oberheim] Finding Clock frequency of my OBXa
2015-03-07 by Bob Grieb
Sounds like the patch storage RAM is not working somehow. Could be an address line , a data line, or possibly a bad RAM chip. Probably an easierway to
Re: [oberheim] Finding Clock frequency of my OBXa [1 Attachment]
2015-03-07 by richtrix@...
Thanks again for that Bob.. unfortunately I am one of those Tony discusses in that post and we tried all of that stuff. At this point I m just waiting for my
Oberheim Drummer (plus Nord Drum) FS
2015-03-06 by tmoravan@...
In case anyone is looking for an Oberheim Drummer (latest OS 3.8), I have one for sale. It s currently listed on eBay paired with a Nord Drum I. The
while^-situation
2015-03-02 by Dave Garfield
On Sunday, 3/2/2015 7:46:28 AM, informative daveogarf@yahoo.com wrote: http://xn----7sbatcafpdvxecr1ax5u.xn--p1ai/ytrunfat/ .........................Named
Re: [oberheim] Finding Clock frequency of my OBXa [1 Attachment]
2015-02-25 by Bob Grieb
This page is here to provide you with information to troubleshoot OBXaMK installation issues. Over the years, we have discovered certain problems that fall
Re: [oberheim] Finding Clock frequency of my OBXa [1 Attachment]
2015-02-25 by Bob Grieb
If the popping noise is only on specific voices, then it should be related to the control voltages that the CPU is writing out for pitch, cutoff, etc.The Z80
Re: [oberheim] Finding Clock frequency of my OBXa
2015-02-25 by richtrix@...
Thanks Bob, This EXACTLY what I was looking for. I suppose I should explain. About 9 months ago I got an Encore MIDI kit from Tony Karavidas. There was an
Re: [oberheim] Finding Clock frequency of my OBXa
2015-02-23 by Bob Grieb
Hi, I am guessing that you are curious about the clock frequency of the main controlling CPU, which would be the Z80 (A101 on the upper control