“The Sports Zone” technical issues

[Doug Shelburne]

Greetings from Massachusetts!

I have a gimbal/pinball machine - name listed above.  The machine has been in storage for years and we’re trying to get the machine up and running.  So far:

- new battery pack (old one showed signs of corrosion)
- basic cleaning of the coin mechanism
- general cleaning of the machine 

On startup the machine cycles the coin mechanism, drops one ball, and then doesn’t respond.  Does not respond to additional coin drops.

The unit has a circuit made by either Edina Technical Products or Polytron Corp.  two part numbers are listed — #12915 and #2614A.  Take a look at the picture for specifics. I’ve checked the circuit board, and do not see evidence of bulging capacitors, corrosion, or anything else that would indicate a failure of the board itself. All wiring going to and from it appears to be in good shape, with no evidence of fraying. 

we have also taking a look at the coin mechanism, and put a tester on the various relays, which is there, and it appears to be working as it should.

I would love suggestions as to where to look next, whether the circuit board itself is the likely culprit, and or where I can get a replacement.

thanks in advance…