Question about Music

1 Answer

How can I fix a pitchbend that doesn't work at all on a ROLAND JUNO 2?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Music Master
  • 5,603 Answers

Some have found that doing a "Factory Reset" has cured an inoperative pitch bend control.

If that doesn't work, inspect the control for mechanical damage and replace broken parts as needed.

Posted on Mar 22, 2011

  • vangelismusi Mar 22, 2011

    I have tried factory reset, but no luck, also I don't see any physical damage anywhere?
    Maybe some kind of chip went bad? but which?

  • Fred Yearian Mar 22, 2011

    The pitch bender is a special potentiometer with a center tap.

    Here is schematic:
    http://elektrotanya.com/roland_ju-2-juno...

    Scroll down to the small link "Get Manual" and download this PDF file.

    The pitch bender is on page 13 of it in the upper left corner. The same A-D convertor is used for four things including the pitch bend, modulation, after touch of key pressure, and the jack board which is probably for a volume pedal. You should test EACH of these functions to see if they are working... if they are, then A-D chip is PROBABLY OK and the problem is with the pitch bend pot, voltages to it or wiring. ALSO it is possiblle that some voices do not ALLOW pitch bending so verify that possibiliity.
    The pitch bender really looks like a wierd way to do it... for sharping the pitch they send a increasingly positive signal up to 5 volts (if pot reaches end of travel) to the A-D convertor... but then for flatting the pitch they send a pulsed or chopped signal that goes up to about 5 volts. (if pot reaches end of travel) The pot probably doesn't go that far but at the extremes maxes out at 2..5 volts since that is the reference voltage of the A-D convertor. I have never seen this method used to identify the direction of bending... You will need a scope to troubleshoot this. On one end of the pot (#) you should find 5 volts plus, the other end (flat) you should see a square wave or pulse with a 5 volt swing. You will need a scope to check the flat direction but the other direction you can use a multimeter to measure the swing... it should go to almost 2.5 volts. If it doesn't go to zero at the center, then the ground to the pot has failed. Since I don't know the duty cycle of the pulsed, we can't assume anything of what the flat direction might measure.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How to program arrpeggiator in Roland Juno D


The information is in the manual. You can download a copy here-
JUNO Owner Manual JUNO Manuals Support Roland

Feb 27, 2015 | Roland Juno-D

1 Answer

Where do I install the expansion card on Roland Juno stage


You install the expansion card to the bottom side of the Juno by removing screws. For detailed step by step instructions, I suggest that you refer to page 174 from the manual that you can download from: JUNO-G Owners Manual (JUNO-G_OM.pdf)

Apr 17, 2011 | Roland Juno Stage EXpandable Synth

1 Answer

I NEED TO KNOW HOW TO SET UP MY ROLAND JUNO D WITH MY AKAI MPC 1000, PARTICULARLY HOW TO SET UP THE MIDI ON THE ROLAND.


Simple way is MIDI out from Juno to MIDI in on MPC, then (depending on how you want to work), connect MIDI out from MPC to the in on the Juno. If you do this you MUST turn local control off on the Juno or else you'll get double triggers (internal + msg in from MPC). Now to record sequences on MPC , set MIDI to as track in setup window (on the 2500, this is accessed by pressing MODE then pad 9, then press button under the corresponding tab [on LCD]) then set your MIDI channel by port, meaning if your MIDI cable is physically connected to out A, in your LCD in bottom right corner it will show as follows: 1A. This indicates you are transmitting on MIDI channel 1; port A. Remember, MIDI IS NOT AUDIO!!!!! Since the Juno is a synth and not a workstation, all transport controls are handled by the MPC, that's pretty much it... Hope this helps a little, enjoy!

P.S. Go to mpc-forum.com its THE sh**! They also have links for their e-book I have one for the 2500 and its awesome!!!

Aug 16, 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

We have the roland juno d and we can't figure out the split for two sounds


you could try using 2 midi channels for two sounds.

Feb 11, 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

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

Not finding what you are looking for?
Music Logo

Related Topics:

169 people viewed this question

Ask a Question

Usually answered in minutes!

Top Music Experts

Vito Vacirca Jr.

Level 2 Expert

140 Answers

yadayada
yadayada

Level 3 Expert

75797 Answers

kakima

Level 3 Expert

102366 Answers

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

Answer questions

Manuals & User Guides

Loading...