(Topic ID: 168865)
Rochester, NY
You do realize there is supposed to be a messenger ball in there for the ball in play to hit. As I recall, it doesn't do anything until the messenger ball settles back onto that roll over switch.
Yes I took the ball out because the field is up and I wanted to be able to reset the arm with out the ball pushing back. When the ball is settle in its place I still don't get a reaction. And now the "B" switch in buck is not activating. I wonder if the motherboard is just going bad . Would none know where I can find replacement parts? This is my first pinball project
Is it the original System 1 MPU board? Does it still have a nicad battery on board?
Batteries leak and outgas thereby eating up traces and corroding the pins inside the connectors along the bottom.
Search System 1 repairs. There is plenty if info on the net about it.
I agree with CactusJack. System 1 repair information is pretty plentiful, as it has become a notoriously unreliable game architecture.
Pinwiki has good information, as does pinrepair.com. There's a lot of bulletproofing that needs to be done to these games to ensure their reliability. If you eventually find that a new CPU board is needed, there are plenty of options from Wi-Numph and Pascal.
I will definitely look into all of this. Thank you.
It has new batteries in it but the machine is new to me so I don't know if they had just been swapped or what kind of neglect the board has been through. I will say it is the only board that is not new inside of it.
Under section 2d, Clay has an excellent photo of what battery damage can do to the edge connector fingers on the back side of the board.
http://www.pinrepair.com/sys1/#battery
The same damage can occur to the metal pins inside the connectors and therefore, my be required to be replaced on at least the two bottom connectors on the left.
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