Thank you for this video. I have a PC88 that I needed to do some felt repair and this helped me greatly!! I had "knocking" keys where the felt strip underneath the key-weights had disintegrated over time. This keyboard model is like 25 years old! It's been my favorite controller keyboard for the last 15 years. I've had 3 of these boards. Sold my first one, then a friend lent me his for a few years, then bought another one off ebay. The most recent one I have had the knocking keys problem. Once disassembled down the key-weight chassis, I was able to remove the old felt fragments and replace with craft felt with adhesive backing. I cut in 3/4" strips and applied to the back of the chassis. I found this solution from an online thread where someone had success using the craft felt. This is felt that the key-weights fall back down to after depressing the keys. If you need to replace the felt at the front of the chassis (what the key-weights press down on when pressing a key), you may want to find a replacement chassis from a Kurzweil used part vendor. I've found a few that still have them. Just google. My key contacts were fine, but the direction on taking they keys apart was super brilliant and extremely helpful. I now have a chopstick as part of my tool set, LOL. I sanded down the non-pointy end of the chopstick just like he said into a "flat-head" shape. This helped me remove the old felt fragments by utilizing the flat-head as a tiny chisel to scrape away the old felt. This helped preserve the plastic of the chassis. Using something metal would have scraped it up. Again, thank you for posting this video!!!!!!!!! This is so awesome!!
Wow! GREAT Video... Thanks for posting it! You just saved me $185. That was the estimate that I received to clean the contacts on my Kurzweill SP76 that had the SAME exact problem that you described concerning one key that played at full velocity. U are da MAN :)
Duane- thanks man. I bookmarked this a long time ago and used it this week to fix my Studiologic 990 Pro which had one loud key (B flat in the 4th octave) and I did everything you said- took it apart, cleaned the PCB boards and the rubber pieces with the alcohol, put everything back together and BAM, worked perfectly. So much better now. Can't thank you enough!!!
Big thanks for this video. My PC3LE8 had a key which always played quietly, and your walkthrough gave me the confidence to dismantle the beast and give it a clean. Working perfectly now!
This is a great video and one I will most definitely refer to because, as you may recall, you helped the guy at Pro-tech by phone when he couldn't get the aftertouch strip back in right. They had sold and installed a replacement keybed to me in 2010. It squeaked from the onset but works. I'll fix it at some point thanks to this video, Duane. Right now I'm repairing and restoring my 80's Memorymoog which needless to say is very time consuming. Hope all is good with you, Duane.
I have an Alesis QS8.2 and I hate the sounds but love the action...until a key dropped out. Thanks to you I got my favorite controller back on-line. Thanks!
Hi Duane, thank you so much. I was trying to figure to how to repair my Nord 88 Piano all morning - no success. After watching your video it was a snap.
thanks for this vid, even after a decade! I just took apart my 25yr old Doepfer PK88 with A LOT of squeaky keys, and fixed them all.
I really like watching your video 😘👍👍👍💯
Thank you for this video. I have a PC88 that I needed to do some felt repair and this helped me greatly!! I had "knocking" keys where the felt strip underneath the key-weights had disintegrated over time. This keyboard model is like 25 years old! It's been my favorite controller keyboard for the last 15 years. I've had 3 of these boards. Sold my first one, then a friend lent me his for a few years, then bought another one off ebay. The most recent one I have had the knocking keys problem. Once disassembled down the key-weight chassis, I was able to remove the old felt fragments and replace with craft felt with adhesive backing. I cut in 3/4" strips and applied to the back of the chassis. I found this solution from an online thread where someone had success using the craft felt. This is felt that the key-weights fall back down to after depressing the keys. If you need to replace the felt at the front of the chassis (what the key-weights press down on when pressing a key), you may want to find a replacement chassis from a Kurzweil used part vendor. I've found a few that still have them. Just google. My key contacts were fine, but the direction on taking they keys apart was super brilliant and extremely helpful. I now have a chopstick as part of my tool set, LOL. I sanded down the non-pointy end of the chopstick just like he said into a "flat-head" shape. This helped me remove the old felt fragments by utilizing the flat-head as a tiny chisel to scrape away the old felt. This helped preserve the plastic of the chassis. Using something metal would have scraped it up. Again, thank you for posting this video!!!!!!!!! This is so awesome!!
Im picking up a Mark 152 and squeaky keys is the only real issue. Can’t wait to pull it apart! Thanks for the video!
Used your video to fix the squeak. Fantastic! Now the keys aren't annoying. You ROCK!
You have just allowed me to move my Kurzweil from the closet to the studio. Thanks you.
Great video. With the absence of Bob Ross these videos are also very calming and zen
One of the keys didn't work on my Kurzweil. Now it does! Thank you!!! :)
Helped me dismantle my OB-6 to get some dirt out from a deadkey. Thanks for your video! :D
Wow! GREAT Video... Thanks for posting it! You just saved me $185. That was the estimate that I received to clean the contacts on my Kurzweill SP76 that had the SAME exact problem that you described concerning one key that played at full velocity. U are da MAN :)
Duane- thanks man. I bookmarked this a long time ago and used it this week to fix my Studiologic 990 Pro which had one loud key (B flat in the 4th octave) and I did everything you said- took it apart, cleaned the PCB boards and the rubber pieces with the alcohol, put everything back together and BAM, worked perfectly. So much better now. Can't thank you enough!!!
Big thanks for this video. My PC3LE8 had a key which always played quietly, and your walkthrough gave me the confidence to dismantle the beast and give it a clean. Working perfectly now!
This is a great video and one I will most definitely refer to because, as you may recall, you helped the guy at Pro-tech by phone when he couldn't get the aftertouch strip back in right. They had sold and installed a replacement keybed to me in 2010. It squeaked from the onset but works. I'll fix it at some point thanks to this video, Duane. Right now I'm repairing and restoring my 80's Memorymoog which needless to say is very time consuming. Hope all is good with you, Duane.
Great stuff, my second hand K2600 has the full velocity problem on D4 so now I know how to get this sorted thanks :-)
I have an Alesis QS8.2 and I hate the sounds but love the action...until a key dropped out. Thanks to you I got my favorite controller back on-line. Thanks!
Thanks for the video. I used your guidance to solve a velocity problem on my PC88. I would have been floundering without your help.
Thanks to you, I was able to repair a broken counter weigh on my 30 year old Mark 10!
Brilliant tutorial. Just what I needed. Thanks!!!
Hi Duane, thank you so much. I was trying to figure to how to repair my Nord 88 Piano all morning - no success. After watching your video it was a snap.
Thanks for great advise. Finally I fixed the squeaky Bb key that was driving me and my students nuts. lol. Best wishes. Maestro Alex. :)