Normally there should 5 volts supplied from the device to the SCSI line. Check the manual for your SCSI device for further information. This kind of setup has both the computer and S-760 as initiators on the SCSI chain. Macintosh computers are permanently set to SCSI ID 7. This will be a problem if your sampler or storage device is also set to SCSI ID 7.
Many computers have internal hard drives and CD-ROMs.
Check with your computer's manufacturer to find out the SCSI ID for these devices. Macintosh computers typically have the internal hard drive set to SCSI ID 0 and CD-ROM drive set to ID 3. Check the owners manual for your computer for more information about its SCSI ID settings. Normally, the S-760 is set from the factory to SCSI ID 7, which may conflict with your computer. Click SCSI to display the System SCSI page.