Hi guys

My troll and flipper solenoids stopped working. The switches work but the solenoids don’t fire. I know trolls and flipper are all in the same fuse section or whatever, but how do I go about trouble shooting this? Just eyeballing at the fuses they look fine but I am not really sure what to look for. Thanks in advance…

Thanks man, tested all the fuses and they are fine. Any other ideas?

I did use a multimeter. Pardon my ignorance but what is the driver board and how do I check that it’s at 50v?

Yes though it’s possible I messed it up. I set it to the setting in the picture and touched both ends of the fuse (removed from board), if the number changed from 1 I assumed it was good.
2257F3A1-F24A-498A-83E8-9FE1F47C2DB9 (resized).jpeg

Thanks I will try again at 200

As far as testing the 50v, is this metal stud the right one? What do I set the multimeter to and where is the ground? Does it matter if I side red/black on the stud or ground? Sorry for the stupid questions

E37CD0DA-901E-4827-93DC-7602A62254A3 (resized).jpeg

That is a metal post, looks flat from the angle? Just wanna confirm

62C25FCD-80FE-4756-B509-3E66B57C9DD2 (resized).jpeg

Cool, and is this the ground?

Do I put the red on the ground and black on the 50v? Machine on obviously right? And what do I set my multimeter to? Stupid questions I know

I might have done something wrong the 50v thing reads 157? I have the multimeter at this setting

E43543F0-1546-414D-A9C0-5E76AF1F8EDA (resized).jpeg

So the 50v check says 73

For checking fuse, how do I set to the ohms setting? I just set it to 200 and saw if the 1 changed to a bunch of numbers

No but I can look for help.

To test the fuse, or I have it on the right setting according to the picture?

4F6EC3F8-CD4F-4B4B-B031-D3DE730F0BE5 (resized).jpeg

Just tested all the fuses again and they seem fine. Is there anything obvious that I could be missing? Both trolls and both flippers don’t work at all, the switches for trolls and flippers are fine though.

I tried changing the fuses for new ones and that didn’t do anything

I think it’s related to the trolls because I am randomly getting a “bad right troll up switch error”. But when I test the switch it works fine. It’s also strange that the credit dot doesn’t go away when I activate the switch in test mode…

Unfortunately I already checked that

Thanks I will try that, I really appreciate the help

A little background on the issue (apologies this is long winded)

I installed the wolfsoft/pinball decals illumated troll mod

This mod is a bit different than the regular illuminated troll mods because the yes pulse when they are on and then blink when you hit the troll switch

the mod uses a little custom board that you run your troll eyes as well as the troll switches to, it plugs into the power board under/near the top of the playfield to power the leds

Initially I was having problems with this mod, it was causing a bunch of random switch errors and the bridge would go up and down

I realized that the led eye wires were stripped and making contact with the metal troll switch creating a weird short/connection causing the errors (at least that is my theory)

to fix it I wrapped the eye led wires in electrical tape and all was good, machined worked perfectly for a month playing it dozens of times

then last night in the middle of my game I start getting the same strange issues, bridge going up and down, switch errors, etc

I figure its the troll mod so I remove it

However even after removing the mod I was getting L/R lower troll switch errors

The switches work fine in my testing, but for some reason the error/credit dot doesn't go away after I activate it

Then suddenly the right troll isn't coming up, the left one is however and the flippers work fine

I figure it has something to do with these switch errors so I continue to test the switches

Then the left troll also stops working and the flippers as well

I am completely stumped !

So this helped me figure it out. I pressed on the CPU and now it works. Actually had a different issue caused by the same reason a while back… unfortunately it seems to mess up again after a few minutes until I press on it again… is there a permanent fix for this?

Ok I will. Like I said when I push on the cpu everything is back to normal but after a while it seems to mess up again and need another push. Thanks for all the help I really appreciate it.