Hi Guys,
I'm still working on my display from the PF. Its out of the machine and I cannot test it at the moment, as I have exposed wires under playfield (lamps for bumpers)... I have a new PinScore LED replacement on the way, BUT I don't want to give up on this one and still trying to getting it going.
Thus far, I've replaced R32 (resistor) and U7, U8, U9, U10, U11 & U12 (4049's). They have been tested and DMM readings are in range (Clay's)...THe UDN6118A's are the same and all UDN7180's except U16. On U16 pin 6 (or 6th pin from 1) I'm getting an nil reading. I don't believe this is correct.
Last time I had it in the machine, only the 1st display (top) was working, 2nd (lower) was not on at all (only U12 replaced since then)
I still have a feeling that the SRC's for display on the CPU may have an issue, but I wont know for sure until the PinScore goes in...