Hey Jim Hill,
Ideally, you would consult with the authorized Roland dealer to see if they can help you the replacement of the fuses. Consider consulting with them before looking elsewhere. If you need a list of regional dealers, you'll have to contact us online by submitting an "official" support request form online here:
Product Support Form | Roland
As for Mac Media, we don't know if they're a qualified repair facility, but if you submit the form (as mentioned above), we can investigate that for you. If they are listed an authorized, then it's possible they can help you by replacing the head protection fuses for you.
Just let us know by filling out the form and take care,
Roland Technical Support
Roland DGA Corp.
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