To clarify:
I have populated on my pcb:
3a
4a
5a
6a
7a 7f
8a 8f
9a
10a
11a 11c
12c
Strider-USA roms in Mame has the above roms, plus others that I don't seem to have on my pcb:
8h, 11h, 11e, 11f, 12b, 12f, 12h,
When I look at the roms on the original board - things look similar:
Then 8h...