Re: Overlay Revisions

[shack@onyx.southwind.net (Randy Shackelford)]

David Empson (dempson@atlantis.actrix.gen.nz) wrote:

: Incidentally, what is the part number written on the ROMs in each
: machine?  I'm still trying to track down a copy of one of the rare ROM
: 3 versions so that I can analyse what changed.  I don't have the
: numbers handy right now.

The old ROM 3 has 341-0749 on the FF-FE chip and is the 32 pin chip with the
extra pins added to the socket. The FC-FD chip has 341-0728. This machine has
28 pin sockets. The new ROM 3 has 341-0748 on FF-FE and 341-0728 on FC-FD.
It has 32 pin sockets and both chips are the 28 pin variety.
--
Randy Shackelford                                 I was internet
shack@southwind.net                               when internet wasn't cool