This site provides all kinds of information about the Yamaha CX5M(II) music computers.

It should be a valuable source for programming or repairing the computer or module. It also provides information about connecting the module to another MSX(2) system.

BUT! I'm not a software expert. I can provide the info, but am not able to help you with programming of Z80 ML-applications. I do hope you people can keep me posted on new developments though and that this info can stir up some extra interest again for this unique machine.

NEW: I've added a description about how to upgrade the CX5M-II to MSX2. Read it here