Quoted from Quench:What does that Alltek testboard help diagnose that you can't with Ballys built in test mode?
From Alltek's website:
The solenoid test allows one solenoid to be activated at a time. Which means you don't have to cycle through all solenoids just to test one anymore!
The lamp test allows you to activate one lamp at a time. This can be really useful when you have a couple of lamps out that need to be repaired. You can also choose to active lamps by rows and columns.
The display test helps you to troubleshoot bad digits on your displays. With this test any digit can be inserted in any display position. Problem solved!
So, not a lot. I think Andrew has the test rom in his board that allows you to test the lamps one at a time as well (along with the multiple switch test, and all of the tests can be paused, too).
I wonder what Alltek means by you can test active lamps by rows and columns? That's pretty meaningless in Bally world since they aren't on a matrix.