Question about Roland Juno-D

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Some keys on my roland juno d wont sound. How do i fix this problem? Please help.

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The key contacts need to be cleaned. They are usually conductive rubber pills in silicone domes that get pressed onto circuitboard traces by the keys. Disassemble to get at the contacts. clean ONLY with 99% isoprophyl alocohol and Q tips. Clean both the pills AND the circuit traces they contact.

Be very careful of cables when opening the unit. Document where all the screws go and their length and threads.

Posted on Nov 15, 2010

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1 Answer

Midi sound does't stop


I don't have any of that gear, but check that an option like "note on/off" is turned on in the MIDI setup menu on the Juno-D. Also check in Logic that it's midi is setup right. Logic could also be receiving sustain pedal MIDI info from the Juno. Anyway, that's all I got.

Mar 28, 2014 | Roland Juno-D

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Some keys of my Juno Di got Out of tuned :( pls help


Un screw your DI and remove the rubber pads under the keys and gently whip any liquid under it and on the key on it .the liquid is acting as resistance to result in de tune.

Nov 19, 2013 | Roland JUNO-Gi 61-Key Mobile Synthesizer...

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After several months of being stored i used my roland juno D to find that some of the keys didnt work. I cleaned the rubber contacts etc but they still dont work? and the ones that do are uneven volumes...


Did you clean these contacts with ONLY isoprophyl 99% alcohol and Qtips? If you used another product you may have spoiled the contacts. Also did you clean the circuit board where they contact with the same product?

If you used another cleaner, best to redo your work... quickly... Contact cleaners such as Deoxit and Blue shower destroy this type contact.

Mar 14, 2011 | Roland Juno-D

1 Answer

When I connect my midi cables to my PC and use Fruity Loops or Mixcraft and I play notes on the Roland Juno D keyboard, some of the notes stick and dont stop playing once released and others are played...


You need to turn off the echo of the MIDI that sends the signals back to the Juno. When near simulataneous MIDI signals are mixed the decoder can receive "partial" messages that re-trigger the notes and then miss the note off commands. If you can't find the setting in the software, disconnect the input to the Juno MIDI while recording it.

Feb 05, 2011 | Roland Juno-D

1 Answer

When I connect my midi cables to my PC and use Fruity Loops or Mixcraft and I play notes on the Roland Juno D keyboard, some of the notes stick and dont stop playing once released and others are played...


The name for the notes that don't stop playing is "Dreaded MIDI Drone". It is caused by multiple note on commands and lost "mating" note off commands.

Also read "c." on page 80 regarding buffer length and "choppy" sounds.

Feb 05, 2011 | Roland Juno-D

1 Answer

Some keys do not play and it is a relatively new keyboard with little play. I was going to take it apart myself but I need help with that. thanks


I would recommend taking it in to be repaired. If they service Roland products they will have access to any parts it needs. It sounds like the key contacts are damaged or dirty. In either case it is not easy to disassemble the Juno because of the internal wiring. It needs to be reassembled perfectly for it to work properly and it is easy to damage something during disassembly. Hope this helps.

Oct 23, 2010 | Roland Juno-D

1 Answer

I wish to know how to open a Roland JUNO-D synth to access the little rubber strips with the key contacts; I have the typical key-not-sounding problem.


Usually there are a number of screws from the bottom to remove. SOmetimes they hide some under a label or rubber feet. The top should remove and pone must be careful of the cables from teh top to the base of the unit.

Keep track of where screws go as often they have different length and using the wrong length when re-assmbling caan cause trouble.

Aug 07, 2010 | Roland JUNO-D Synthesizer

1 Answer

Can I update roland Juno G Old version to new?


Here is the link you need but pay absolute attention to the Please note section in each case as the Juno D LE and the original Juno D are different. If you install the wrong update you will have problems with the keyboard working at all.

Jul 17, 2010 | Roland Juno-D

1 Answer

Where can I take my roland juno keyboard to be repaired lost soun


juno, lovely instrument, try the synthesizer repair centre in london

Feb 06, 2010 | Roland Juno-D

4 Answers

Roland Juno D Keyboard Keys not sounding


The problem of the Juno-D is de rubber strips inside under the keysthere are 5 strips, you have to clean this rubber strips with alcohol and clean the board too, this will resolve your problem if you leave the Juno-D without playing for a long period you will get the same problem again. this is a very poor keyboard it,s a pitty that Roland Make so poor keyboard!!!!

Dec 16, 2008 | Music

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