Roland Corporation complained and had 3 service manuals taken down from @internetarchive on bogus copyright grounds. They were uploaded to help people maintain fix their musical gear #righttorepair

Service manuals are legal and should be freely shared so I'm calling bullshit on them (Yamaha doesn't do that).

So if anyone want them just send me a message and I'm sending them your way.

EDIT: they're for Vdrums electronic drums and the newer SPD-SX