Roland HP-126 repair parts

Does anyone know if there are any other 39 and 49key contact boards that are compatible with with the hp126. Does any 49 key board work, or am I just going to have to repair the blown resistors. Just curious, I know the parts are almost nonexistent at this point. But am just curious.

It may be enough to clean the contacts with IPA, perhaps also the contact strips !

Most boards are specific to the keyboard.

Are the resistors blown because they’ve been water damaged? Do you have a photo?