Was playing a game of AP the other night and the ball went into the kick out hole at the top of the playfield (EXTRA BALL/ACE) and would not eject.
I also noticed just before that moment the sound was getting a little strange..unlike anything I've heard from the pin before but not constantly.
Slid the glass back and moved ball out of the hole. I noticed then that the pop bumpers, the slingshots, nothing would fire except the bottom flippers.
I checked all the fuses on the backbox POWER BOARD and they are good. Also checked the fuses below the power board in the backbox. Also all good.
Any ideas what to check next please?
Thanks!

Fixed:
Fuse #2 wasn't blown but the ends were sort of "aged" and "sticky", so new fuse, clean fuse clips and back in biz.