Quoted from snyper2099:

Clip the disc capacitor that is attached to switch #22. If that doesn't work, replace the diode on switch #22.
You may find additional switch closures since Bally disgnostics can only display one closure at a time.
Like I said, it's not always the boards causing pinball problems...
Furthermore, there's no history of your account and no one here has any idea if you know anything at all about repairing games or running tests. Hell, most people will not even respond to someone that appears to have JUST signed up on Pinside for free pinball help two days ago. But I digress...
Not certain what you mean by "dim self test light". The light is supposed to be REMAIN dimly lit, under normal Bally game booting and operation.