On Tue, 18 Aug 2009, Joe Giliberti wrote:
I have a good DMM available, as well as a scope.
I just noticed that there are two chips missing, which appear to be ROMs.
There are sockets, but no chips. Their location would be toward the back
part of the board, to the right. They are the last two in a column (in
relation to the back) of similar-sized chips, most of which are direct
soldered to the board. I can take a photo if one is needed
PETs have "option ROM" sockets, so it's reasonable to have one with a
couple of empty sockets.
g.
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