Powerplayfec
Active member
Hello. I've come across a Tales from the Crypt pinball with a problem that I could use a little help with. I went to a home to work on this pin and found 2 melted pop bumpers along with it's driver section badly burnt (as well as previously repaired). I replaced the solenoids and their drivers.... On next power up several solenoids energized.... I then replaced ALL 6 TIP122s and 2N4401s in that section..... still have several solenoids energize on power-up......Next I replace the twin 7402s nearby.....Now I just have one pop bumper (center) that energizes (and it energizes only when a game is started... not on power-up).
I checked the pop-bumper switch and corresponding transistor and they are OK.
Any idea as to what might be a problem deeper in the curcuitry? Thanks.
I checked the pop-bumper switch and corresponding transistor and they are OK.
Any idea as to what might be a problem deeper in the curcuitry? Thanks.