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Roland FP3 electric piano maitenance

I have a loose key. How hard is it to remove the cover and fix it?

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6ya6ya
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Posted on Jan 02, 2017

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Hacklet
  • 18 Answers

SOURCE: Roland 3000 Digital Piano 88-Key Full-size weighted keyboard

It's not really for the faint of heart, but generally this is caused by gunk getting into the key circutry. Underlying the 3000's keyboard is a silicone pad with 2 contacts on it, the measurement between each being hit is the issue usually but yours just sounds like there's something in there causing a physical or contact obstruction.

What you really want to do is to remove the keys and clean everything but this isn't easy... You could try using 99% alcohol (from a pharmacy) to clean inside it which may well help you.

There's a good thread on a similar issue at:

http://www.electronicspoint.com/roland-hp-3000s-digital-piano-dodgy-note-t18946.html

Which may help you work out how to do the disassembly if you are brave, but I would start with pouring some alcohol in and poking it and hoping for the best 1st. It sounds crude, but it works amazingly well with some things.

Posted on Jul 12, 2009

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SOURCE: It's a Roland HP-7e digital piano about three years old.

You may need to clean the contacts which are usually conductive rubber. I explained stuff for another Roland problem with two keys that were intermittent. I have an EP-7 that I had to do the cleaning of the key contacts. Use 91 or 99 % Isoprophyl alcohol to clean BOTH the conductive "pill" (Black under silicone rubber domes) AND the traces on the board where they press. Clean gently as the traces have a hard black coating.

Posted on Jul 29, 2009

  • 1138 Answers

SOURCE: Have a HP 1700 Roland Digital Piano that has one

It sounds as if the membrane under the key needs to be replaced. It can be done with some careful work yourself but you might want to consider having it serviced by a Roland dealer as apparently the parts are becoming scarce. Hope this helps.

Posted on Aug 20, 2009

  • 1138 Answers

SOURCE: Roland KR-5500 digital piano

Unless you are skilled at electronics troubleshooting, you would probably be better off taking it in to be repaired. It might be the power transformer or a filter capacitor or a number of other things. The problem may not even be visible. You will definitely need a schematic and some test equipment. Try this site:http://www.vintageplanet.nl/ or this site:http://www.rangeraudio.com/stock16.htm

Posted on Oct 18, 2009

Prestopick
  • 1 Answer

SOURCE: 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 presto11@verizon.net

Posted on Nov 19, 2009

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