8-bit acorn hardware • Re: Unknown Rom Board

My best educated guess is as follows:

• Green to S21sw
• Blue from S21se
• Purple from IC76 pin 12
• Grey from IC76 pin 13
• White from IC76 pin 14

The four sockets on this expansion board are 8 to 11
The four ROM sockets on the main board are now 12 to 15

All the above will also be duplicated in the range 0 to 7.

Mark

Statistics: Posted by 1024MAK — Fri Jul 05, 2024 11:41 pm

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