I forgot to mention that the M72-Xmultiply is fully working, I have played on it before the multikit installation and did also yesterday put back the original ROMs and jumpers to see if it still works and it did.
Regarding the multikit, as I have now reprogrammed the GALs (before I knew it...
I got the black V2 kit, I received a complete kit with both MCU and GAL separate circuits. The M72-Xmultiply with installed kit shows a freezed "garbled" screen. I tried then to program the IC13 with the .jed file (I did actually not know it was programmed) with copy protection (rtw told me...