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Roland rd600 is there a common problem related to the lowest octave or lowest eight keys to having stopped working?

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Google it and see if anything shows up on a forum or blog.

Posted on Nov 28, 2013


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SOURCE: need rubber boot key contacts

Try for the parts. They are in England but give great service and specialize in hard to find parts.

Posted on Jul 10, 2009

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SOURCE: roland fantom g8, problem, The last 2 octaves do

Read page 135 regarding the note range settings. Look also for keyboard split information. You may have the keyboard set to NOT play notes in the top octaves for the particular voice you are using.

Posted on Feb 24, 2011

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I'm having trouble being able to select any of my sounds or switch octaves or keys on my Roland RS-50 it seems as if it's stuck.... What do you think I should do

Will probably need to be diassembled and cleaned. Either a sticking key or a compromised contact on the circuit board. Any electronics repair shop should be able to fix this.

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Low keys stopped working rd600

Been years since I had an RD600 but I do remember it happened to me once or twice.

It was either the SPLIT function...with one of the volume sliders down, or MIDI channel. Sorry not much of a solution...hopefully this will jog your memory into experimenting with some of the RD's functions: split/transpose/MIDI etc

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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.

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Volume of some keys (one octave) are lower than rest of the keyboard, any advise please ?

Take it in for repair. There may be a broken line for the velocity sensing of that octave of keys that is causing the velocity to be sensed low. The repair is NOT DIY if this is the case.

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My pedal oc3 does the octav , but it makes not at the same time I play

A very slight delay would be normal as it takes the pedal electronics time to acquire and creae the second harmonic. The ear is sensitive to about 1/1000 second. You haven't said how much delay it is causing... If it is over 1/20 of a second there is a problem.

May 05, 2011 | Roland Boss OC-3 Pedal Octave/Synth

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Roland fantom g8, problem, The last 2 octaves do not issue sound

Read page 135 regarding the note range settings. Look also for keyboard split information. You may have the keyboard set to NOT play notes in the top octaves for the particular voice you are using.

Feb 23, 2011 | Roland FANTOMG8

1 Answer

Im having issues with my roland juno-d. there are 3 keys that are not sounding properly, they are generally quiet and slower to respond. the board and reubber have both been cleaned with alchol

The next step gets very complicated without test equipment.

It is important to realize how these keyboards work. ( I assumed you cleaned the black rubber dot that forms the contact.)

The keys are "scanned" by the electronics. Usually 12 bits are read at a time and the computer scans through the banks of keys that are usually 1 octave at a time and two per bank to enabling reading the velocity as the contacts for a key close one slightly behiund the other.

If there is any deformation of the contact bearing dome, that will cause a velocity sensing problem.

The keys are scanned as a matrix. To avoid current going backward through keys in other octaves, there are disconnect diodes that prevent coupling of one octave with another and between the two sets of contacts (for velocity sensing) within a single octave.

Do verrify that you cleaned the board and the black rubber dots with 99% isoprophyl alcohol and NOT rubbing alcohol as the latter contains an oil that worsens the problem.

Jan 29, 2010 | Music

1 Answer

I need a service manual for Roland FP8 piano, or..

Did you ever get hold of an FP-8 service manual? The weight replacement is relatively simple: The case opens by removal of eight screws, four at each end on the underside. The top then hinges up. Keyboard assembly is removed by first unplugging the two white ribbon connectors at the center, then removing the screws at the front edge (underneath) and the screws (gold) at the back of the assembly (accessible from the top). Keys pop out by spreading the two "wings" at the pivot point, and then the weights (Roland calls them "hammers") lift out. Roland will sell you new ones, but I have no idea whether the replacements are any better than the originals. I've done two of these pianos so far, and have a third waiting to be worked on. I do have a service manual, but I think I downloaded it freebee somewhere.
The other failure mode on this piano is the electolytic coupling caps on the output board - I've replaced all of them on both pianos - don't remember the value offhand.
Paul Prestopino

Sep 21, 2009 | Music

1 Answer

Need rubber boot key contacts

Try for the parts. They are in England but give great service and specialize in hard to find parts.

Jul 03, 2009 | Music

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