You spoke about the two different lengths / heights of the rubber contacts. This is for touch sensitivity. (I am an ex engineer from Technics musical instruments. ) the first contact starts a counter counting backwards from 127 to 0. The 2nd contract stops the countdown and that is the velocity keystroke for that key. This is why if contact number 1 is dirty there is no count down and when the 2nd contact stops the count and reads the value it will get 127 value. If the 2nd contact is dirty the count will go all the way down to zero.
This came up on my feed. I own a K2000 R/S from 1994. I was always the weird dude with a K2000... especially when the K2500 had just come out. Loved it... especially coming from an Ensonic Mirage.
A herculean task well done! I also bought a K2000S back in the early 90s. I only opened it once when I updated the eprom for the OS. And those sounds! I sold it a few years ago after not using it much, but it felt like owning a spaceship from the future back when I bought it. Thanks for sharing this process.
"...owning a spaceship from the future..." Man is that a good description of the experience back then. It's rather dated now, but considering mine is still working (more or less), I guess I can't say I didn't get my money's worth!
Classic Skinny Puppy (Dwayne Goettel). If the keybed gets iffy you can run it via midi as a "module". In the 90's a used Roland JX-3p was all I could afford, sounded great though 🤠
I bought two K2VX's, replaced both screens, maxed out ram and installed the latest Firmware chips. On one I used a hard drive emulator that takes microsd cards that plugs into the scsi port. They both work great!
Thankyou so much for your effort and determination, it certainly paid off!! Sadly my Kurzweil K2000 is in my loft and needing a repair, but you've given hope that these remarkable keyboards still have a place in todays crazy world of sounds, so I'll pull my finger out and try to get mine fixed.
Inspiring! I'm waiting on 2 RAM Chips for the effects unit to fix the dreaded Effects ticking sound - when they come I'll do a similar full clean as well as removing the SCSI hard drive - I replaced the floppy drive with a CF card reader when it failed. Also use it as a MIDI controller, and as a live gig keyboard when our player comes in from out of town.
K2000's with 0rig V.A.S.T. are still amazing & incredible instruments.They have a warm sonic quality that's slightly unique comparatively tooo it's other siblings (or anything else for that matter) kid's¡!
impressive work .. As you are not an electronics technician you are daring but the reward was worthy of the audacity !! Bravo ! :) I have the same problem with certain snap buttons on my k2000 purchased over thirty years ago and which works flawlessly for the rest. And I fear that it would be too risky for me to try to remove this motherboard to clean them even if I assembled PCs in the past... I'm less courageous than you, it's my only master keyboard and I don't want to risk it breaking down for just one day.
hey thanks so much for doing this! I have a K2000VP, which got in 97 and that is dusty and some keys not working properly... so this video is soooooooo goood and helpful!🙏🙏🙏 also loved the background electronic music 👌👌
I’ve opened up multiple K2000’s more times than I can remember. Changing the backlights out 3 different times was the worst though. Nice video, thanks for sharing.
Well, the display is on the panel. Never cracked open a K2000 (yet), but I'm guessing its like others where you have to remove everything else to get to it.
Great work... my K2000 kept blowing a fuse on startup... not every time but often enough to keep a box of spare fuses in my gig bag... I swapped out the display for a new one and added the sample and P/RAM expansion card and it served me well for quite a while with no major headaches ... I no longer own it but I'd consider getting a K2600 or 2700 if the condition and price was right.
Look up plastic welding . You can repair it from the inside . Use reinforcing plastic repair steel inserts which press into plastic to hold it in place and give it strength
Excellent job! Thank you for the video. 👍 (even if I don't own a K2000. But I've an old EPS in my bassment which deserve some care. One day....) And I subscribe to your channel because someone who celebrate her cat's birthday cant' be totaly bad 😉
@Ann Other you mentioned speed, which is just the broad concept. It is a count down timer that starts at 127 and counts down to 0. Which is why if the count start contact is bad and the stop contract is working the volume will be 127 on that key regardless of velocity. If the start contract is good but the stop contract is bad, the CPU doesn't know that a key was depressed.
try replacing the batteries in the bottom of the K2000 if these went dead then it may have dumped the ram memories, if the unit comes back up you will have to do a factory reset , the procedure is on the kurzweil web site, hope this works for you
Yes, be careful when removing the bottom! I placed mine on a table and my cat ran over it which made it fall down on the floor, shattering it into several pieces. Those things are brittle after 30+ years :-(
I have a k2000 It blew to fuses that are located at the back where the kettle lead goes . No idea what to do I replaced them and they also blew Cheers Mick
HI MY K2000 HAS A UNIQUE PROBLEM....when i switch on the sounds are good...and after few minutes, all the tones turns distorted.....efx ics are good...problem in the small mother board section,,,,,how do i rectify...please help....this is my favourite keyboard
I have updated mine to the max of everything from the memory ,operating system (Janus as well) to new screen and replaced the floppy with a USB drive it hold 99 floppies on one USB stick I love mine still sounds amazing , great job on the refurb. the real question is how do the dust bunnies get into the keyboard?
Nice! I'm definitely going to have to go back in and make some more upgrades/repairs at some point. I thought it'd mostly outgrown its usefulness in my studio, but now I'm kind of digging it again. But also... I'm pretty sure the bulk of those "dust bunnies" were actually "cat hair bunnies". Uhhh... lesson learned, LOL.
@@ComposerKristin cool, these are fine instruments here's a tip for you when you pull the rubber contacts for the velocity and you want to clean the pads underneath use a soft eraser and gently go over them do not use alcohol it will dissolve the contacts ( not good) LOL
My k2000's screen has to be tapped every 5 minutes to be visible and the effects are completely broken. Any patch with fx just scream at me so I use the dry outs. I've started to open it, but I got stuck and replaced the screws and backed away
Can't say I didn't feel ridiculous ordering, like, 5 springs and nothing else... but glad to have found a place that sells them and shipped them right away. I still haven't found where the heck that spring sprung off too!
The issue with not fixing the microswitches is that you'll be pressing harder and harder until you break the button which is a royal pain in the A to source... don't ask me how I know :D:D:D:D
Hi, Nice video. thanks. * The difference in the height of the two tabs is to change the time they collide with the main board. The stronger the keyboard is played, the shorter the time interval between these two numbers of tabs and the main board will be, and this will detect the intensity of the impact and, in fact, the touch response of the keyboard. * You can buy and install a special aftertouch felt instead of the worn rubber piece that is placed on the aftertouch tape. cheers @kafman_studio
You spoke about the two different lengths / heights of the rubber contacts. This is for touch sensitivity. (I am an ex engineer from Technics musical instruments. ) the first contact starts a counter counting backwards from 127 to 0. The 2nd contract stops the countdown and that is the velocity keystroke for that key. This is why if contact number 1 is dirty there is no count down and when the 2nd contact stops the count and reads the value it will get 127 value. If the 2nd contact is dirty the count will go all the way down to zero.
I love your sense of humor. Keep doing projects, keep doing videos. They are amazing. And keep them true. because life is not perfect, life is true
This came up on my feed. I own a K2000 R/S from 1994. I was always the weird dude with a K2000... especially when the K2500 had just come out. Loved it... especially coming from an Ensonic Mirage.
A herculean task well done! I also bought a K2000S back in the early 90s. I only opened it once when I updated the eprom for the OS. And those sounds! I sold it a few years ago after not using it much, but it felt like owning a spaceship from the future back when I bought it. Thanks for sharing this process.
"...owning a spaceship from the future..."
Man is that a good description of the experience back then. It's rather dated now, but considering mine is still working (more or less), I guess I can't say I didn't get my money's worth!
Classic Skinny Puppy (Dwayne Goettel). If the keybed gets iffy you can run it via midi as a "module". In the 90's a used Roland JX-3p was all I could afford, sounded great though 🤠
I bought two K2VX's, replaced both screens, maxed out ram and installed the latest Firmware chips. On one I used a hard drive emulator that takes microsd cards that plugs into the scsi port. They both work great!
👍👍👍👍
Thankyou so much for your effort and determination, it certainly paid off!! Sadly my Kurzweil K2000 is in my loft and needing a repair, but you've given hope that these remarkable keyboards still have a place in todays crazy world of sounds, so I'll pull my finger out and try to get mine fixed.
That was a fun video to watch, good info to know if i ever need to open mine up and clean it deeply.
Inspiring! I'm waiting on 2 RAM Chips for the effects unit to fix the dreaded Effects ticking sound - when they come I'll do a similar full clean as well as removing the SCSI hard drive - I replaced the floppy drive with a CF card reader when it failed. Also use it as a MIDI controller, and as a live gig keyboard when our player comes in from out of town.
K2000's with 0rig V.A.S.T. are still amazing & incredible instruments.They have a warm sonic quality that's slightly unique comparatively tooo it's other siblings (or anything else for that matter) kid's¡!
Quite a task. Thank you for taing the time and making such a thorough and good humoured video.
impressive work .. As you are not an electronics technician you are daring but the reward was worthy of the audacity !! Bravo ! :)
I have the same problem with certain snap buttons on my k2000 purchased over thirty years ago and which works flawlessly for the rest. And I fear that it would be too risky for me to try to remove this motherboard to clean them even if I assembled PCs in the past... I'm less courageous than you, it's my only master keyboard and I don't want to risk it breaking down for just one day.
hey thanks so much for doing this! I have a K2000VP, which got in 97 and that is dusty and some keys not working properly... so this video is soooooooo goood and helpful!🙏🙏🙏 also loved the background electronic music 👌👌
You're welcome! I'm so glad it was helpful!
I’ve opened up multiple K2000’s more times than I can remember. Changing the backlights out 3 different times was the worst though. Nice video, thanks for sharing.
Any idea why any patch with fx just shrieks digital noise at me on my k2000? I can deal with the no backlight.
@@godforreal7355 search the web for bad 16KB RAM Kurzweil K2000 DSP chip.
@@godforreal7355 just search for bad Kurzweil K2000 DSP chip
@@godforreal7355 bad DSP CMOS chip
Well, the display is on the panel. Never cracked open a K2000 (yet), but I'm guessing its like others where you have to remove everything else to get to it.
Great work... my K2000 kept blowing a fuse on startup... not every time but often enough to keep a box of spare fuses in my gig bag... I swapped out the display for a new one and added the sample and P/RAM expansion card and it served me well for quite a while with no major headaches ... I no longer own it but I'd consider getting a K2600 or 2700 if the condition and price was right.
The initialization at power up means the battery is dead. Which reminded me to check on mine. 😊 Great great keyboard.
Great vid.. I've done this many times with my (many) PC88's.
Your really impressive I like the fact you dove into it so much I admire it .. think I’m a true fan of you awesome job!!
Look up plastic welding . You can repair it from the inside . Use reinforcing plastic repair steel inserts which press into plastic to hold it in place and give it strength
Excellent job!
Thank you for the video. 👍
(even if I don't own a K2000. But I've an old EPS in my bassment which deserve some care. One day....)
And I subscribe to your channel because someone who celebrate her cat's birthday cant' be totaly bad 😉
Cat people, unite! :)
The high and the low contact measure the velocity -- the speed between high and low
Oh, sweet! That's good to know. I knew someone would eventually come along who knew more about the inner workings. Thanks!
@@ComposerKristin I know a little about a lot 👍
Yes but you didn't say how the measurement is achieved, I added that to the comments.
@@timpullen4941 The measurement is achieved by the speed between both - I mentioned that
@Ann Other you mentioned speed, which is just the broad concept. It is a count down timer that starts at 127 and counts down to 0. Which is why if the count start contact is bad and the stop contract is working the volume will be 127 on that key regardless of velocity. If the start contract is good but the stop contract is bad, the CPU doesn't know that a key was depressed.
1:46 Awwwwwww so pretty!!! :D:D And the machine, a Performa 475 maybe??
Great job!
You could probably use soft fibreglass with epoxy to strengthen
Good job. Mine won’t boot up after sitting unused for a few years 😢. Just a blank screen and the floppy runs nonstop.
Bummer. Admittedly, I haven't tested my floppy drive; but the likelihood I'd actually find a floppy to test it with is rather slim. So... win/win?
try replacing the batteries in the bottom of the K2000 if these went dead then it may have dumped the ram memories, if the unit comes back up you will have to do a factory reset , the procedure is on the kurzweil web site, hope this works for you
thanks for documenting this process. did you ever find that original spring?
I never did! At this point I'm assuming it's hanging out with wherever all the lost dryer socks go.
Yes, be careful when removing the bottom! I placed mine on a table and my cat ran over it which made it fall down on the floor, shattering it into several pieces. Those things are brittle after 30+ years :-(
Cat stories get hearts.
I have a k2000
It blew to fuses that are located at the back where the kettle lead goes .
No idea what to do I replaced them and they also blew
Cheers
Mick
Replace the power supply capacitors. First thing to do always.
HI MY K2000 HAS A UNIQUE PROBLEM....when i switch on the sounds are good...and after few minutes, all the tones turns distorted.....efx ics are good...problem in the small mother board section,,,,,how do i rectify...please help....this is my favourite keyboard
I have updated mine to the max of everything from the memory ,operating system (Janus as well) to new screen and replaced the floppy with a USB drive it hold 99 floppies on one USB stick I love mine still sounds amazing , great job on the refurb. the real question is how do the dust bunnies get into the keyboard?
Nice! I'm definitely going to have to go back in and make some more upgrades/repairs at some point. I thought it'd mostly outgrown its usefulness in my studio, but now I'm kind of digging it again.
But also... I'm pretty sure the bulk of those "dust bunnies" were actually "cat hair bunnies". Uhhh... lesson learned, LOL.
@@ComposerKristin cool, these are fine instruments
here's a tip for you when you pull the rubber contacts for the velocity and you want to clean the pads underneath use a soft eraser and gently go over them do not use alcohol it will dissolve the contacts ( not good) LOL
My k2000's screen has to be tapped every 5 minutes to be visible and the effects are completely broken. Any patch with fx just scream at me so I use the dry outs. I've started to open it, but I got stuck and replaced the screws and backed away
Got a AA battery tray for K2000 from Syntaur. How great are they?
Can't say I didn't feel ridiculous ordering, like, 5 springs and nothing else... but glad to have found a place that sells them and shipped them right away. I still haven't found where the heck that spring sprung off too!
You will never ever find that spring until one day when you have zero needs for it and it will find its way into something you dread
Ist it really necessary to Take Off the Keys? Why Not only taking Off the 2 Boards and then Clean the Rubbertabs?
I didn't see any moaning doing the cleaning😂
Didn't Robert miles use that keyboard for Children?
Excellent video thanks Kristin
Good morning,
I own a K2000 and a PC3.
Can you tell me the version of your Rom setup?
Thank you beforehand.
Boujour de France
3.01J
Bella.💎💎💎💎💎💎
The issue with not fixing the microswitches is that you'll be pressing harder and harder until you break the button which is a royal pain in the A to source... don't ask me how I know :D:D:D:D
Talk to blondie hacks about springs she can make them
Marry me
🤣
Hi, Nice video. thanks.
* The difference in the height of the two tabs is to change the time they collide with the main board. The stronger the keyboard is played, the shorter the time interval between these two numbers of tabs and the main board will be, and this will detect the intensity of the impact and, in fact, the touch response of the keyboard.
* You can buy and install a special aftertouch felt instead of the worn rubber piece that is placed on the aftertouch tape.
cheers
@kafman_studio
This is very helpful. Thanks!