[sdiy] Alesis Midiverb eprom images
Tony Kalomiris
ic1 at bell.net
Mon Nov 1 09:03:35 CET 2010
Hi list,
I think I messed up the 27C256, U51, eprom when I read it in my trusty old eprom programmer.
I discovered that to my horror it wasn't properly seated in it's ISA slot.
I looked at the bins and could see only a partial read was succesful, i.e. lower 512 are all FF's.
Now the unit behaves erratically and distorts and overloads.
I also read the 2764 operating system, and it also partially read.
I took the normal static precautions and used a ground strap.
I am devastated and am pleading with anybody who might have a copy of the images they'd be willing to share.
I can trade for some other machines eprom images.
This is the original 12 bit DAC/SAR Midiverb.
U51 27C256 label reads "MVOBJ 2-6-86" ( effects programs)
U54 2764 label reads "MVOP 4-7-86" (operating system for the 80C31)
Appreciate any help with this, in the meantime I have contacted Alesis in a last ditch effort.
Tony Kalomiris
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