I am looking for the EPROM chip (with correct contents) labeled “U6” on the CPU Board (rev. B) in the Kurzweil K2661. The chip suppose to be 27C1024 (or similar) 128KB EPROM 32-pin chip, and, if I understand correctly, it should contain a boot block.
Also, if you have K2661 CPU board (preferably, Rev. B) for sale or the whole non-working K2661 with mentioned parts inside - please let me know.
Many thanks in advance.