Quoted from ToucanF16:

BoP 2.0 in the future?

Quoted from Swainer80:

InfiniteLives, I have the exact same problem you mention. My BoP worked perfectly then all of a sudden, I couldn't put in my initials or switch the Extra ball light in the lanes. Eventually the error comes up on the display stating check flipper switches. Your problem has just inspired me to get off my butt and find the problem. (it is a good news/bad news kind of thing though) As you know (with replacing the 2 chips on the driver board) that the flipper switches are not physical "switches". They use those two chips to close when they sense current on the right and left flipper, but they do work with the switch matrix on the CPU board though.
This is NOT done through IDC conectors at J206/207 (Column drive) or J208/209 (Return rows) at the bottom of the CPU board. This is communicated through the wide J202 Ribbon cable on the right hand side of the CPU board. Pin 1 is the column driver (column 1) that goes to the 2 chips. I first checked to see if column 1 was pulsing (using a logic probe) on the redundant pins on J206 (Column 1 is green/brown on terminal 1) and it was. Then i checked Terminal 1 at the J202 ribbon cable pins on the cpu (turning off the game first, waiting for the indicator leds on the driver board to fade off, then taking off the ribbon at the CPU and turning it back on again), here is where it gets weird, at first it was flat then it started pulsing. After turning the game off, replacing the cable then slightly lifting the cable off the driver board to probe pin 1 it did the same thing. Lastly i checked the legs of the chips themselves. Did the exact same thing, first no pulse, then sort of faded on to a full pulse. Once they were pulsing I did the switch edge test and sure as shit the flippers were registering. That is the bad news, I don't know why by just putting on the logic probe that the drive circuit started working again.
Fiddling with the ribbon cable maybe?
After typing all this I went down to test the switches again and they are registering.
My advice is to probe the bottom right leg of each of the chip and see if they are pulsing. If not, check terminal 1 at J202 on the CPU to see if you even have a pulse there (if so, it might be just be the cable not connecting well), if not, then there might be a problem with a trace on the board. I'll keep my fingers crossed for you that it is a poor connection.
If you don't have a probe id re-seat the ribbon cable on both sides for the hell of it, hopefully it works.
If that doesn't fix it i'd recommend getting a logic probe to better "see" what is or isn't going on.
That is where I am worried. I is obvious that there was some battery damage and work done on my board, I hope it is not a trace going bad.
Good Luck

Quoted from Spitfiren8:

Hope this is what youre looking for

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