PLUG-AND-PLAY SWITCHING REGULATOR MOD FOR CLASSIC BALLY/STERN MACHINES
Judging interest on a plug-and-play mod for Classic Bally/Stern games that would upgrade the 5v in those games to use a switching regulator. This would be a plug-in board, that connected to the J3 header (power input) on the Solenoid Driver Board. This would cause the on-board linear 5v power supply and high voltage supply to go inactive. Less heat, less energy usage and makes an easy way to fix a board with a non-working 5v linear regulator circuit or upgrade it to something that's more efficient & has higher amperage capability.
I've updated the project page for this some since I first created this thread. Instead of this plug-in board only handling the displays, I'm at this point going to work on a board that takes care of eliminating the linear 5v supply entirely from the SDB circuit. This would dramatically reduce load on the 11.9vdc circuit and one of the larger culprits of heat in the backbox.
More on this project over at http://www.pinitech.com/lab/ballystern_leddisplay_powersupply.php
This is a really basic mock-up just for a picture Essentially it'd be a smaller board that has board-to-board connectors that plug into J3 on the Solenoid Driver Board. Then it has a header so you can plug the harness that normally plugs into J3 into that. Easy plug-in solution. Note: One of the 25-pin headers would have board-to-board connectors instead of male headers.
Around $35.00 (may be slightly more/less). Estimate was updated now that I'm talking about eliminating the SDB's on-board linear supply completely. It could still be about what I originally estimated ($30 or so) but will need to see what the material costs end up at. Regardless, I think I think that'd be a great price for some peace-of-mind that this would achieve when using some of the less-efficient aftermarket led sets.
Looking For Beta Testers!
If all goes well with the prototype as far as testing & no other issues are found, I'll be looking for a handful of people to beta test these. So let me know via this thread if you'd like to be a beta tester.
Interested? Get signed up on the Waitlist!
Let me know in the comments & also sign up on the waitlist over at http://www.pinitech.com/lab.php
http://www.pinitech.com - "Pinball Inspired Technology"
Kits, upgrades and test equipment for pinball machines