Repairing a DX7IID

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SamSamba
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Repairing a DX7IID

Post by SamSamba » Thu Apr 30, 2015 8:50 am

I bought a used Yamaha DX7IID. In general it's fine for its age, but it has some issues - does anyone know how these could be fixed? I haven't had the guts to open it yet...I'm guessing some of these are just dust/dirt.

- The buttons work, but most/some require a heavy push to work (dirt?).
- The keys "clang" loudly against the metal below them, especially around one section. There doesn't seem to be any aftertouch and there might be a velocity issue.
- One key doesn't work at all.

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steve@samplersurgery
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Re: Repairing a DX7IID

Post by steve@samplersurgery » Thu Apr 30, 2015 3:34 pm

with it being almost 20 years old it could probably do with a service.....

- The buttons work, but most/some require a heavy push to work (dirt?).

sounds like you need some tact switches replaced

- The keys "clang" loudly against the metal below them, especially around one section. There doesn't seem to be any aftertouch and there might be a velocity issue.

key return springs need replacing

- One key doesn't work at all.

contact assembly needs replacing.

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