Emax

I have had to replace SCSI fuses on AKAI products before... it's actually a common problem with them.  Troubleshooting my SCSI problem I decided to see if flipping the cable upside down would help.  I may have blown the protection fuse in the process.  Does anyone have information on the SCSI system inside the EMAX?  I haven't looked inside the sampler yet, but I have searched old messages with no results.  I used to be able to detect a ZIP drive through the external port and recently have trouble doing so.  Are the internal and external SCSI connections on the same controller / fuse?  Any insight into this system to help me understand it would be appreciated.

Thank you,
Everett