Well mine now works. When I was testing the bare board for power and cross shorts on the Data/Add lines I noticed that I had Zero across the reset CAP - ignored it as a fluke.
Well two minutes with the scope and a strong clock made me start at the top and PIN 7 RST was Low.... hmm checked the routes via IC11 etc - swapped the LS00 as I had a batch of 10 with some faulty gates... nope - de-soldered the cap no still short.
Button seems to be OK up and down - continuity test shows it is permanent on - de-soldered it - which is VERY hard - took it apart, can't see any reason - put it back together works fine...
duhh seems they have an orientation as it is square pins... obvious once you see the inside of the switch...
