Man I'm having a run of bad luck here lately. Rehabbing an MPU
Bally Kiss - Can get all 7 flashes, and the start music comes on. It will go into attract mode for about 3 seconds, then stops.No further lights will turn on. Can coin up, but when the start button is pushed, no solenoids fire. Displays are all blank except Player 3 which strobes all 0's. I checked the data lines and they are still active after the Atrract Mode stops.
Self Test - Controlled lamps work, coils work, switch test works and are shown on the displays 1 and 2.
I initially thought it was a ROM issue, but after replacing the sockets and burning new Eproms, still having the same issue. U11 PIA controls the solenoids and displays so I swapped it with U10 and still the same issue.
Burned new Eproms
New Sockets on U1,U2,U6, U15,U16,U7 and U8
Checked PIAs on Neoloch Inquisitor
Maybe the U11 socket is fine until it warms up then has some issues? I'll check that socket next and see what it does.
Otherwise, thoughts?