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I'm hoping someone on here might be able to give me some guidance. I acquired this keyboard in non-working condition. It only shows blocks on the display. The first thing I had to do was replace the eproms because it only had one out of two eproms populated. I burnt the Pro76 eproms and added the three sound roms it was missing. I went through all the checks on k1000.net a few times. The power supply is giving proper voltages with no ripple. I started probing everything. I see tons of activity around the 68000 and anything associated with it. Lots of pulsing for the address and data busses, etc I see virtually no activity around the arnold chips and everything that comes after the arnold. I'm not the greatest with digital stuff so I'm at a bit of a loss. Is it likely that both my arnold chips are dead or that some input is wrong and that is preventing them from operating? Any advice would be appreciated.

Hi folks, Glad to have joined the group here. We got a used K1000 keyboard almost five years ago; when we bought it, the previous owner said that it had been fully upgraded (paraphrasing), but of course at the time we didn't understand the specifics. The list of sounds matches the "Pro 1" sound list here: https://www.k1000.net/sounds-pro1.htm; the "Show Version" menu option says "Engine: v5.32" and "Setups: v5.10". So far we have just been naive preset users, not really even knowing how to move around properly in the menus. The unit was in storage for maybe a year or so but a couple of weeks ago I got it back out for my daughter to use. I recently printed the manuals and started to read them a bit, having been interested to get to know it better when I find some time. Then suddenly this week... All was fine until a couple of days ago; my daughter complained about it playing two notes at the same time and that appears to be the case. I did some testing against another keyboard and to me it sounds like the Kurzweil is playing what I'd call "imperfect fifths" when you hold down a single note. I looked at the "Transpose" parameter for each layer from a few different randomly-selected sounds but didn't find anything other than zeros, save for one patch that was transposed an octave (it was set to "12"). I'm wondering if it's malfunctioning, such that the "hard reset" is the only option here, but I'm loathe to do it because I am not sure if there are any custom programs from the previous owner in there somewhere - I went through the full range of sounds (000-493; with 401-493 saying "(not found)") and the lists (000-099, 101-163, 201-299 and 301-363) matching the "Pro 1 sounds" lists). I'm confused by the FAQ (https://www.k1000.net/faq.htm#faqpvsid) saying that in the Rev 5 products, the RAM programs were in "location 255 down" - I don't know if this means 000-255 or 201-255 in the "Pro 1 Sounds" list - I was under the impression that these lists were all ROM sounds from the myriad ROM chips that get installed. Hopefully I did my homework well and the description above is helpful - thanks in advance for any recommendations! Chuck

Hello everyone! New K1000 keyboard owner here since last month owner :-) and very happy to have found this community. I have taken some time and am still trying to get to know this beautiful machine better with the help of the precious collection of infos on the k1000.net site. Before unmounting the main board though, I would need some little advice concerning the flaws explained a little further down. Hope somebody can help :-) So, here is what I have so far: roms installed: u50 u51 u54 u55 u58 u59 the unit seems to be in original state without any modifications the relay on the mainboard is a Matsushita with clear top (have already ordered a Panasonic one just in case) I am only testing through the headphones for now (!) and it sounds good, all keys play, ram works, I can save sounds in user memory Have slightly dusted off the interior and the mainboard, then did a hard reset and went into diagnostic mode, runned all self tests with one UART fail ? LCD VISUAL TEST ok ? BUTTON TEST ok ? PROGRAM ROM TST ok ? SETUP ROM TEST ok ? RAM TEST ok ? BATTERY BAK TST ok ? TIMER TEST ok ? UART TEST ER19>KEYBD UART DATA ERROR U102 ER19 ADDR>780001 EX>0000 OB>FF00 15-(ER19 BITS)-0 BBBBBBBB*** ? ARNOLD 1 TEST ok ? ARNOLD 0 TEST ok ? SOUND ROM TEST ok ? ONE SAMPLE TEST ok ? MIDI LOOP TEST ok ? SINE WAVE TEST ok ? SEVEN SAMP TEST ok Now my problems: *1)* the last program is 179 (tuning note), not 184 !? after comparing with the program list from the manual I realise 5 programs are missing: 160 (mono pressure vibrato clarinet) 158 (poly pressure vibrato clarinet) 148 (pressure tremolo vibes) 138 (mono pressure strings) 132 (piano & vibes) It is as if they were just not on the ROM ??!? Can somebody explain that? *2)* Programs 03 through 08 are not playable over the whole keyboard (see list below), which means some keys to the left and some keys to the right just make no sound. This occurs of course with all associated programs that use the same sample soundfiles. Changing the low note and the high note of the layer in the edit menu doesn't change anything: program 03 (choir) G#1 to G#6 only program 04 (vibes) F#2 to D7 only program 05 (acoustic bass) A0 to E4 only program 06 (trumpet) C3 to F#6 only program 07 (baritone horn) D#2 to A5 only program 08 (clarinet) F2 to G#6 Funny enough, the range is different with each of these programs, ROM tests show no errors. Other programs like 01 (grand piano) play fine through the whole keyboard. Still, I pushed down all roms slightly, dusted them off and at first sight the eprom legs don't seem to be corroded (?). Until I am not sure that the problem doesn't lie elsewhere, I'd rather not take them out, because they seem to sit in there quite tightly. So much for now - I hope someone can give me an advice. greetings from Berlin! Jules

Hi All, Since repairing my K1000SE, I bought another K1000, replaced both LCD's with OLED screens and upgraded all the ROM's to Pro-76 (or K1200 Pro 1 Expander) equivalent. I love them but I have a question w.r.t. MIDI latency. Sometimes I drive the K1000's over MIDI from a Korg D1 piano. It often seems like I'm hearing chords spread out, and even the start of the chords is slightly delayed, although the latter is not on every patch..... I hear it mostly on piano patches. Has anyone experienced this? I'm wondering if the sample-based patches - like piano - may be slightly late just due to the way the piano hits have been sampled and cropped (unlike synth patches where the waveform generation starts immediately). When I listen to the Korg D1, it's sounds are more immediate. But maybe it's just me. It's hard to do a double blind test. :-) BTW I still haven't been able to get the K1000SE aftertouch working yet. Cheers, Michael

New member here - I've one simple question to ask: I have a Kurzweil 1000 GX which unfortunately won’t turn on any more, so I’d like to try replacing the fuse. I’ve been able to pull out the entire AC socket compartment (which has an image of a fuse on it) as instructed in the manual, but once the whole thing is out, there seems no way to get inside it to access the actual fuse. I can’t pull it out any further and am assuming the fuse is inside the part I’ve pulled out, even though it looks like a solid block. I’ve been searching everywhere for advice but have found nothing. Thanks for any tips!!

Hi everyone, In march I posted about a K1000SE that wouldn't boot. I managed to fix it - details below for anyone who's interested - but now I've discovered that the aftertouch isn't working. I've scoured all the schematics (from k1000.net) and I don't see anything related to aftertouch. (Maybe I missed something.) Can anyone help? If there's an upgraded schematic anywhere, I'd love to see it. (Regarding the boot problem.... An electrolytic capacitor close to the SRAM chips had leaked and corroded a very faint track from the OR chip feeding the write-enable SRAM input pins. I wired around this and everything is back to normal. (In the process of troubleshooting I also replaced all electrolytics across all boards, resoldered the P1 connector and installed a new SRAM chip.) Best regards, Michael

Hi everyone, In march I posted about a K1000SE that wouldn't boot. I managed to fix it - details below for anyone who's interested - but now I've discovered that the aftertouch isn't working. I've scoured all the schematics (from k1000.net) and I don't see anything related to aftertouch. (Maybe I missed something.) Can anyone help? If there's an upgraded schematic anywhere, I'd love to see it. (Regarding the boot problem.... An electrolytic capacitor close to the SRAM chips had leaked and corroded a very faint track from the OR chip feeding the write-enable SRAM input pins. I wired around this and everything is back to normal. (In the process of troubleshooting I also replaced all electrolytics across all boards, resoldered the P1 connector and installed a new SRAM chip.) Best regards, Michael

Hi everyone, I just bought a K1000SE that won't boot. (It also has a sticker that says "Extended ROM"). I've opened it up and I have the multi-meter and soldering iron ready. :-) The program and setup ROM tests come up 'ok.' The RAM test gives error 07, plus some other stuff. The Battery test gives error 11. (I Presume it needs a new backup battery.) Just after some guidance that might accelerate my troubleshooting? I'm about to re-seat all the IC's and connectors, check for bad solder joints and test power supply voltages. Thanks, Michael

Hello group, It has been almost 30 years since I started the K1000.net website. I am no longer able to keep it updated and/or active so it is time for someone else to take over. A couple of options. 1. The website is hosted at blue host. And the domain name and hosting is paid for a couple more years. I would suppose it would be possible to transfer the domain and account ownership to a new person, but I have not verified that process. 2. The entire code and file system can be sent to someone and they can upload to the ISP of their choice. The site is almost entirely simple HTML and will run on almost any ISP at a low cost. Any takers? Dennis Spanogle Kurle (K1000 editor MS-DOS) Kurlwin (K1000 librarian MS Windows) , K1000.net (the K1000 archives website.) ,

Hey folks, I'm talking with someone who is working on making a display reader for Kurzweil instruments accessible on several platforms. To this end he needs to know if pressing the buttons on the module or keyboard sends data out through the MIDI Out. What he needs is for someone to use MIDI-OX, press the buttons on the device, (probably best if this is one with the full numeric button array for completeness) and save the MIDI-OX log file, assuming any MIDI data is sent. Shoot that file to me and I'll get it on to him. Anyone out there who could do this? I would, but right now my modules and keyboard are mothballed. Nicole Sent from my HAL 9000 in transit to Jupiter

For years, my K1000 PX has been my go-to piano. I mean for years like since 1988 when I bought it new for something like $1900 from Chuck Levin Music when I was on the east coast. Piano; Piano and strings; piano and bass; etc. It’s been that good and still is. Anyway... I’ve been looking at the idea that it might be time for another piano. Sort of a standalone piano-plus module and take the K1000 (and my other several KW modules) back into heavy duty synth programming exploiting that 4 layer architecture. Looking at the Dexibell module. Here’s one: https://www.sweetwater.com/store/detail/VIVOSX7--dexibell-vivo-sx7-sound-module Anyone around here with experience on this thing that also has experience on our beloved K1000 modules? I’m just a little shaky on making the switch. L.,_._,_

Just been out of the loop too long and can’t answer my own question. I’m building a Kurzweil Rack with some of my modules. This particular rack, a slant face, will be Two K2000RS and Three K1000 (pro2 x2 and one pro3). Probably a Korg M1r. Plus room for a couple of other things. I want it to be self-contained and self supporting, as it were, so I’m reserving 2U for a computer and another 2U for an interface. A single midi controller will rule them all :-) Here’s my dilemma. What software? What hardware? What I have right now is 20+ year old Opcode Galaxy software. Very capable, I suppose, but it runs on an aging G4 Mac. It has full editing for both K1000 and K2000 with vintage graphics. I’d rework a G4 to be2U rackmount. The interface would be an Opcode Studio 5lx. 16x16 midi i/o. Again, very capable despite its age. It would handle many patches and be able to transfer them through the convoluted KW system to get them working. BUT, is there a PC based solution? Or a Linux based solution? Geez, even a Raspberry Pi or Android solution?? It has to work without moving cables, too. Enough I/O for every port to have its own. Of course, our own Dennis Spanogle has Kurlewin – a Windows based solution for the k1000. But what about K2000? Come to find out, I don’t even have a PC based midi interface. Need some opinions. No answer is wrong. Stay the course with vintage gear all around? Go get the newest whiz-bang? Or is there a secret and special combination I’ve not seen? (very likely, this one) What? L. ._,_

Hi, I completely agree that the MIDI transmission on serial port is superior to that on usb. Many years ago I had tested all serial and usb midi interfaces on the market, measuring jitter, and invariably the best results were on midi serial port interfaces. Old macs are a great value when you think to MIDI trasmission best Luca Il 28/07/21 21:45, José Juan ha scritto:

Ah, a user group, nice! I have a 1000PX, which I bought for the piano, but realized had a lot more to offer. I still haven't managed to wrap my head around editing it though. I wish there was an editor for Windows. I guess you all have seen Espen Krafts video on the 1000PX? https://www.youtube.com/watch?v=WcA8vNj93_E //Lennart

I just learned from a fellow K1000/1200 group user last week that there are issues using ObjectEditorX with Big Sur (OS11). On doing some research I discovered that Apple have completely revised CoreMidi - first time in 20 years!! This was clearly done to encompass the new MIDI2.0 specification, but introduces no backward compatibility with OS10. As I firmly belong in the dark ages, there is no way I am going to be able to maintain this product going forward. So after much thought I think the only solution will be to publish the source code, and let some other adventurous sole work out how to include the new CoreMidi library. So my question to the group is where should the source code reside? Also any courageous sole willing to dive into XCode/Objective-C/CoreMidi to make it work with macOS11? Thanks David