I am stumped, I can do board repair, etc... when I know what I am needing to replace but the time has come where I cannot figure something out.
My Bride Of Pinbot column 4 is acting like column 3 all the way across, when I test the MPU at the switch plugs with the playfield disconnected I get the same thing.
When I test the rows when I get to column 4 for that row is act's like column 3 so I guess what I am saying is either way I test it row vs. column column 4 will always act like column 3.
Now I don't know how to test the UNL2803A chip but from what I am reading is that the likely candidate?
Thanks
Brad
My Bride Of Pinbot column 4 is acting like column 3 all the way across, when I test the MPU at the switch plugs with the playfield disconnected I get the same thing.
When I test the rows when I get to column 4 for that row is act's like column 3 so I guess what I am saying is either way I test it row vs. column column 4 will always act like column 3.
Now I don't know how to test the UNL2803A chip but from what I am reading is that the likely candidate?
Thanks
Brad