Question about Musical Instruments

4 Answers

Roland Juno D Keyboard Keys not sounding

Hello,

I have a Roland Juno D music keyboard which was working fine a year ago when I stopped using it. I plugged it in the other day and 19 of the keys do not sound. Also, some of the other keys play louder than others. I reset the keyboard back to it's original factory state but it still has this fault. Can anyone guide me as to what to do fo fix this?

Many Thanks,

Paul

Posted by on

  • 3 more comments 
  • Anonymous Jan 09, 2009

    Hi , I have this same problem with my own Juno -D .

    More and more keys went over time.. my keyboard was close to a door in the living room (not much space in house) and the first two keys that went were the two closest to the door on the right hand side...this must be some sort of loose connection with the wiring ...however some of these keys have a delayed response with some of the keys..they sound about a second later



    Hope we can find a solution!



    George





  • Anonymous Jan 17, 2009

    roland/ edirol have had some problems with the contcats on some of there keyboards of late.
    my old pcr m-30 midi controler lost one key about 6 months after i had it, then slowly more and more went also, same with my juno d.
    i had found a document on how to fix the keys on the net somewhere but at the moment i havnt found anything for the juno d
    if i find something ill post up a link or how to.

    regards mike


  • audiofeen
    audiofeen Jan 17, 2009

    roland/ edirol have had some problems with the contcats on some of there keyboards of late.
    my old pcr m-30 midi controler lost one key about 6 months after i had it, then slowly more and more went also, same with my juno d.
    i had found a document on how to fix the keys on the net somewhere but at the moment i havnt found anything for the juno d
    if i find something ill post up a link or how to


  • Anonymous Mar 08, 2009

    I have just spent 4 hours trying to repair mine! A few years ago when I was gigging with it i noticed one key went, then more and more just kept breaking - no sound.

    I opened it up today and tested the strip cable which did have a broken wire which i may have broken when I took off. I changed the strip cable and hoped that would be it but no. It seemed to be a problem with the actual contacts. I stripped all the keys off and the rubber contacts and found that the gold plate had worn off the contacts on the board to show the under coat of nickel. This would alter the resistance level accross the contacts and throw the calibration out. (Of course I'm not an expert in electronics but thats my guess.) The keyboard is *ucked. Thank you Roland I had only gigged with it for a year.

  • Anonymous Mar 16, 2009

    Same problem here too. but only 11 keys working

×

4 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

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!!!!

Posted on Mar 17, 2009

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

I have the answer to repairing the keys for the Juno D.
Contact Repair Kit....
http://www.oaktreeent.com/Roland_Keyboard_Parts_Units.htm
or
http://www.mcmelectronics.com/product/20-3890&cid=prodCrossSell
I have a 7 year old Juno D and over time many of the keys stopped playing.. I tried all the cleaning and nothing really helped.
Don't remember how i found out about this but i did the Rubber contact repair kit and it does FIX the problem and according to the directions, it will fix it better than new.
product is made for any electronics using this type of contact. Ex: tv remotes, hand held game controllers etc. IT WORKED.
The keys are like brand new..
I am not a electrician or mechanic and was able to do this, so good luck.. Ok maybe you can help me.
How do i get a volume knob for my Juno D that just stopped working i hear low volume coming out of speakers but the volume knob does not turn it up or down.. and of course maybe that isn't even the problem. if anyone can help.. please do
thanks.

Posted on Jan 04, 2011

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,137 Answers

All of Rolands keyboards have the same or similar contact strips. The problem is more to do with the strips than the circuit board. You can clean both and I would recommend using a pencil eraser on the circuit board before the isopropanol. Make sure you check the base of the contact strip "towers" of each key contact as they have a tendency to rip at the base with hard playing and then the strip needs to be replaced. On the older keyboards the parts are getting harder to find. There are independent repair places that source those.Here is a link to one:http://www.oaktreeent.com/Roland_Keyboard_Parts_Units.htm

Posted on Mar 04, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Similar problem. I found that the network cable connecting the mother board wasnt making contact. Very bad design need to find the part to repair it.

Posted on May 18, 2010

  • Letcia P. Rosenfeld
    Letcia P. Rosenfeld Feb 09, 2014

    Line Juno is a bad project, but it has good patches,,,

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

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

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

My Roland d-50 keyboard ic


There are lots of IC's in the unit. Order from Roland support parts. That will be the only source.

Jun 01, 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

1 Answer

Roland juno-d, keys are either too loud or too


Normally you have to clean the conductive rubber "pills" AND the circuit board traces they get pressed down on.

USE ONLY 99% isoprophyl alcohol on Q-Tips to do the cleaning and be gentle.

Use of other product like deoxit and other contact cleaners will wreck the contact material.

Jan 11, 2010 | Roland Juno-D

1 Answer

My sustain pedal does not work on my Roland Juno-D keyboard.


Have you tried the pedal straight into the amp without going thru the Roland?

Does the sustain pedal turn on with the foot pedal or is it a separte stomp switch to turn it on?

May 31, 2009 | Roland Juno-D

1 Answer

Roland keyboard. Extremely static-y speakers. Cuts out.


It sounds like your volume slider is dirty. Try carefully and judiciously spraying a good quality contact cleaner into the slider and working it. do not use a lot. It only takes a little. Also do not use WD40.

Mar 01, 2009 | Roland Juno-D

Not finding what you are looking for?
Musical Instruments Logo

Related Topics:

7,905 people viewed this question

Ask a Question

Usually answered in minutes!

Top Musical Instruments Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1042 Answers

Ben Armstrong

Level 2 Expert

332 Answers

Are you a Musical Instrument Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...