Hi! My name is Jorick and I live in the Netherlands. This blog is about one of my hobbies. If you have any questions about repairing your keyboard feel free to ask me any questions you might have!


6 thoughts on “About

  1. Hi Jorick

    I found your blog while looking for websites that may stock sliding potentiometers for a Roland JD800. I read your blog on how you restored your JD … I’m very impressed!!! Great job!! Judging by the dates on your blog, it looks as if we both got our JD’s at around the same time … mine was in much cleaner condition than yours but it still had a few bugs in it. The keyboard had been replaced by the previous owner but the sliders were shot and it kept self-editing all of the time. I took it in for a service and the tech found a few other things wrong with it (dry solder joins etc) but he wasn’t able to fix the self-editing problem 100% … it’s much better now but it will occasionally go a bit crazy. I’m looking out for replacement sliders all of the time but the only supplier I’ve found so far wants 10 Euro per slider (about AUD $15 for me) … too expensive and I’m not even sure if the sliders are brand new or if they were salvaged… I’ll keep looking but I’m not hopeful … you’d think that somewhere on this planet there would be a supplier of generic electronic parts that you could use to replace your old gear … oh well. Anyway, your blog was a great read… good luck with your JD … ps – I also have a Roland R8 Mk1 … a fantastic drum machine .. you’ll love it.


  2. Hi Darryl,

    I used to buy new sliders directly from Roland but when I tried to get a new volume slider recently for my JV-90 project they said they couldn’t supply them anymore.. bummer. I found the volume slider at synth-parts.com (german site) but they don’t have the regular sliders on their website. I’ve taken apart the old wornout volume slider of the JV-90 and those things are so incredibly simply made it’s almost criminal that shops charge you 10 euro’s for a part that should only cost a few dimes 🙂 probably because they are getting rare. I believe the original manufacturer was Panasonic. I took one to a electronics store once and they tried to find a replacement but they couldn’t find it in any catalogue..

    My JD-800 doesn’t really have the self editting problem. I happend a few times but if I move the slider up and down it went away. (and stayed away) The only problems I have with my JD-800 is the volume slider that makes a lot of crackling noises when you move it and the aftertouch doesn’t work at all. The partno for the volumeslider is a little different than that of the JV-90 but I might order 2 and see if it’ll fit in the JD-800. On the outside the sliders look the same I think. Only the stem height is different but thats easy to trim off. When I’ve fixed the volume and aftertouch I’ll update the JD-800 post.

    If I ever find a website that sells replacement sliders that fit I’ll let you know 🙂


    1. Dag Jorick.. ..I’m surprised you are not trying a simple solution like spraying WD40 inside the slider.. 😉 ..did you try ?


      1. There is never any scenario in which WD40 is the answer / solution when it comes to repairing electronics :p WD40 is for squeeky door hinges.


  3. Good morning Jorick:
    Thank you so much for the response regarding the Main boards for XP-60.

    Here is my problem:
    After 7 years of storage, I unwrapped my XP-60 which is like new, protective plastic still on the LCD.
    I plugged it in and everything looked great BUT, no sound! So I turned it off and when I turned it on again, the LCD became solid green, no text, no sound or characters, just solid green.

    I used a pressure spry can to remove any dust or particles but no luck.

    Based on some suggestions, I purchased a used power supply and installed it but same result. Solid Green Screen and no sound.

    I want to replace the main board but cannot find any parts.

    Do you have any suggestions for me?

    Thank you so much!



  4. Hi Marc,

    These are common issues for an XP-50 🙂 so they probably also apply to the XP-60. No text on the display of an XP-50 means 2 or 3 capacitors need to be replaced. These are part of the contrast mechanism. The caps used in XP-50’s, XP-60’s and XP-80 are terrible as they all go bad over time. (well all caps go bad eventually but the XP series break down sooner instead of later 🙂 ) This is a real problem for the XP series. No sound also indicates one or several broken capacitors and / or opamps. The problem with the caps is that they start leaking electolite when they go bad and if the synth is stored vertically this electrolite can run down the circuitboards eating away the traces and cause a lot of damage. I’ve read so much about this online (because a lot of XP’s have these problems) that I decided to buy a broken XP-50 just to see if I could fix it. Mine had only very distorted sound. I replaced all the caps but that didn’t fix the problem unfortunatly. Someone later suggested that there might have been some broken op-amps as well.. I sold it as a ‘for parts’ unit.

    You need to be a ninja with a soldering iron if you attempt to fix this your self 🙂 the parts are very cheap (all caps, and you need about 30, only cost a few euro’s in total) but it’s a complicated job.

    Well, you have seen my XP-50 post.. 🙂

    You could have it fixed by a professional but that could be expensive..



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