I recently worked on my Williams Blackout. I replaced all the headers and most of the connectors. I did not change the connectors for the displays – they are IDC connectors and they were working fine. Now I’ve noticed some of the segments on displays 3 and 4 flicker and a couple of segments were out totally. I fixed the missing segments by replacing a couple of resistors. But I still got flickering so I replaced the remaining resistors. It’s still flickering.
Would a bad connector (1J5) – Display BCD cause this flickering?