4040 ROM replacement(?)

Technical questions about any Commodore computer, peripheral, or related issue.
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Joined: Thu Mar 24, 2016 12:59 pm

4040 ROM replacement(?)

Post by pioneer » Fri Nov 09, 2018 9:53 am

Recently I reported on the replacement of a damaged ROM in a CBM 710 computer. That project ended in success. Now I have two 4040 disk drives with problems. One of them works partially. One drive out of the dual drives works. The other 4040 doesn't work at all. It gives a flash code. According to the information I've been able to get, the problem seems to be one or more of the DOS ROMS. I ordered some EPROMS which I'm waiting for. Hopefully my experimentation with EPROMs will help someone on this forum.

Posts: 22
Joined: Thu Jan 27, 2011 7:37 pm
Location: Peterborough, Ontatio, Canada

Re: 4040 ROM replacement(?)

Post by Bish500 » Tue Nov 13, 2018 10:16 am

I'm interested in this (I don't need to replace my 4040 ROMs currently, but who knows what will be needed in the future?) Please keep us updated as to your progress!

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