Ok, i try to found a m64-c cartridge to expand the mem of my 707.
Its pretty rare so i think to use my iron solder again!!! I got this
idea! Why we not making are own cartridge!!! I look into the service
manual and i saw the conection between the tr and the cartridge. 28
pins have to be pluged into the cartridge(mem). But the problem
is... What is the chip part number So anyone can help me:) I will
write to Roland to get a service manual!!!


thanks
bizz