Some keys don't work at all (two); several keys must be played quite firmly in order to work. This occurs across all voices.
Oh, and one key sticks.
1) what causes this
2) who is my best bet for a correct fix - electronics specialist, music store, ???
3) who can likely fix it right, for the least $$$ (I'm broke)
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.
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i have the same problem as you and am looking to fix it......however, i do some electrical work, and computer hardware stuff too, and i have not found the problem yet. I have noticed that the board bows slightly in the middle due to play and general gravity, however, the boards inside are supposed to flex and give a bit. I suspect that the magnetic strike plattes on the circuit boards are worn and simply need replacing. will see if i can solve.
the problem is that when I press one key the other keys are all distorted and make thundering sounds. I have several pianos and they are all doing it. I run a small Music school and live near the sea. Of course I suspect corrosion but don't want to assume anything, just find out what the best way to correct the units is.
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