Purity Posted September 16, 2016 Share Posted September 16, 2016 (edited) I recently fixed a Vectrex and thought I would share what I did. The unit powered up but would loop on the Mine Storm game. Here's a video: My guess was that it was an issue with the rams (which are 2114 rams) or an issue with the rom. I took it apart and removed the rams and fitted sockets. Both rams tested ok. I then removed the rom which was a D2763-4. I managed to read it as a 2764 eprom on my programmer, and checked it against the bios “exec rom intl 284001-1” from Mame, which showed it had one “bit” of bad data! I used the rom data on Mame to see what it did. Unsurprisly it crashed at the same point as the Vectrex, which confirmed the rom was at fault. I re-burnt a new bios file to a 2764 eprom, put the Vectrex back together, and I now have a working system :-) Edited September 16, 2016 by Purity 4 Quote Link to comment Share on other sites More sharing options...
Rob Mitchell Posted October 1, 2016 Share Posted October 1, 2016 Great! Quote Link to comment Share on other sites More sharing options...
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