Looking for your board tester schematics

[Sarver Systems]

I'm building some testers to test boards from pinball machines.

All versions, all brands.

So far, I have designed my own rectifier board tester. Its able to test all 3 Bally rectifier boards. It has meters to show the voltage of all 3 test points by just plugging the tester into the board. The tester plugs into the wall for AC power, so a pinball machine is not needing to test the rectifier.

I'm looking to build a tester for solenoid drivers, light matrix boards, MPU boards, etc.... for all of the different brands and versions of boards.

[Sarver Systems]

I'll be posting pics of the final product with a parts list and schematic once it's done.