Good evening everyone just got 3 replacement pop bumper driver boards and 2 of them fixed my pop bumper issues, the 3rd when I pressed the test switch it sparked and fried the trace from pin 2 (ground). The coil in brand new and have checked for proper ground, cross shorts and shorts to ground with no discrepancies noted. I've also checked the connector to their respective spots and all checked fine.
All fuses are good with proper ratings.
Any help would be awesome .
Compare the components to the failed board to a working board. Is the orientation of everything the same, or are there any differences?
Is the coil in the damaged circuit wired correctly? Sounds like it might be wire up backwards. You mentioned it was brand new. Easy mistake to make.
His boards have built in diode protection so it shouldn't matter which wire is on which side of the coil at that point
Diode protection or not. Are you sure the coil is wired up correctly? That would be where I check first. There is a lot of juicie goinging to the coils. What brand pop boards did you get? A photo of the fried board would be helpful.
Interesting. I’ve never seen that one before. And the fuse for this pop board didn’t blow when you ran the test?
Hahah nope, blew my mind. Trigger led lights with the spoon switch. Getting 25 volts at the coil as I should be. And 5 everywhere I am as well.
You can always try one of your known good pop boards in that location if everything seems to check out. Like you said, might have just been a bad board. At this point it is kind of a roll of the dice.
Perhaps the diode on the coil is shorted. Try removing the diode and meter it.
Quoted from Mad_Dog_Coin_Op:You can always try one of your known good pop boards in that location if everything seems to check out. Like you said, might have just been a bad board. At this point it is kind of a roll of the dice.
It would be better to fix the trace on the board, swap it with a known good board and see if it does the same thing as it did on the non working bumper than to possibly burn another board on a possible bad coil / diode.
Removed a diode off a working coil and with a good replacement board is now causing the coil to lock on instantly and blowing the 2amp fuse
Yea I removed the diodes like his website says I can and nots to working like advertised. Causing coil lock on now.
Quoted from hockeymutt:Here it is, got it from Marco. Replaced 2 out of 3. The one that was working had a weaker pop compared to the originals. [quoted image]
Can you show the coil tabs?
Give everyone an update, it was a bad diode on the brand new coil. Chris over at pinballreplacementparts.com was excellent and sent me over new boards after it happen.
Would have never thought a new coil would have had a bad diode. $.10 in parts caused 2 days of troubleshooting and $40 in parts. I now have 200 diodes of all sorts to have on hand.
Wanna join the discussion? Please sign in to reply to this topic.
Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
This page was printed from https://pinside.com/pinball/forum/topic/system-80b-pop-bumper- and we tried optimising it for printing. Some page elements may have been deliberately hidden.
Scan the QR code on the left to jump to the URL this document was printed from.
Egg Harbor Township, NJ