Excel spreadsheet showing how the main board is wired
I haven't done much with the cart disassemblies yet, but they do re-assemble.
Bomarc Services has given me permission to post schematics that they created of the Video Brain unit way back in 1982!
It appears that this was an early production unit, possibly a prototype- connections on the main board were cut and routed to an additional board, and there were more signals going to the cart connector.
Unfortunately, the part #s are different from the unit that I examined, but it looks like the general connectivity is the same. I wrote in the different part numbers for the major ICs.
These are copyright by Bomarc for non-commercial use only.
