Akai S1000 / S1100 samplers

Hi Everyone. I am new to this group and hope that someone can kindly help me.

I just got a secondhand Akai S1100 sampler with Eprom Version 4.3.It came with a whole bunch of floppies, but somehow the sampler will not load them and the volume does not show either. 

So I tried to format a floppy but it keeps coming up with the error message disk is write protected, even though the switch on the floppy is not on the write protect area and I tried different floppies, but can't get that to work.

I have also tried to hook up a Iomega 2gb Jaz drive via SCSI and also an old Apple CD600 rom which is working fine on my other sampler, but nothing is showing up on the Akai even though the SCSI ID has been set to 5 inside the sampler and on the  Cd rom drive itself. 

The internal SCSI ID for Akai is set on 6. I'm not sure if I'm doing something wrong or if it's the sample itself. I can sample and record into the sampler and the effects etc all seem to be working fine. 

I just bought a startup disk in case there is something wrong with the Eprom ??  but have to wait til it arrives.

I know older sampler can be finnicky with SCSI etc but not being able to format a simple floppy is a bit scary. Has anyone else heard of this problem or know how to fix it? 

Many thanks for your help in advance!!! :)