Got a Cleo that works fine, displays all look bright, power supply rebuilt, most connectors repinned, ground mods done. Been leaving it on all day to burn-in-test it, and consistently, after about 6 hours or so, the display fuse blows. Put another one in right away and itll work fine for another 6 hours. Any ideas? Im thinking of testing the game with all the displays unplugged, see the results, then plug one display in, see the results, etc etc.

Yeah theyre almost exactly on the money, 60v and 42.5v. This is on cold boot

All of them look good, nothing wonky. Gonna try what you suggested with unplugging 3 and 4, see if the fuse blows

Fiddle-fucked around with plugging/unplugging displays, didnt really see any pattern, didn't get better. Repinned one of the MPU connectors for the display logic, then the fuse started blowing every 30 mins or so. Fiddle-fucked with it for a bit, didn't get anywhere. Added the fuses to protect the small transformer. Put a new Gulf pinball power supply in it, now the fuse blows instantly. I'm gonna change the two bridges in the bottom of the cabinet, as they were changed when I got them but it's kind of a hackjob. Can't think of anything else to do at this point besides just throwing the old displays in the fucking dumpster.