AW: Problem with MM V
Thank you for pictures.
CPU is rated at 3 MHz, so in MM V it is overclocked by approx. 65 %... Not unusual for devices designed by H&G. And not likely to cause the problem.
Yes, some solder eyes look odd.
Ideas:
Incompatibilty with your modular board. Try another one if possible.
Eprom could be corrupted.
Do you have other modules oder chess computers with 65c02 inside? If you buy a CPU on ebay... you don't know whether it is working or faulty.
I would try:
another modular board
new Eprom
another CPU
In this order.
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