This is driving me crazy. Checked all transistors, nothing shorted. Values seemed fine. Going through the system 11 guide.

Hard to figure out as it instantly blows f2 fuse.

But still plays...Freaky. I don't know what to test if it won't hold power to test...And it's high voltage so dangerous. It's at a barcade, I'd redo all the connectors if it was private, but with no guarantee of that fixing it I'm kinda stuck. Any help appreciated. Ty

It also blows my 10 amp multimeter fuse if I try and see a spike, and then blows the main 8 amp. Sigh

Agreed, I saw something where perhaps seeing which one drew a spike in test or attract would at least narrow it down. So, special solenoids from the CPU j18 does not change anything. solendoid connector to the power supply does not do anything, but power input does (duh?)

so doubtful GI right now. Ill have a more specific and directional report tomorrow, ty for the suggestion. I feel like I need to make a harness just for isolating specific solenoids...that or because it still blows after jp? removed from the PS (the left lower one, solenoid and GI power) will have number tommorrow, but it still blows a fuse. which makes me suggest a new PS to owner, which is pricey...but so is replacing huge cap and so on.

Surprisingly, or not, its a Pinbot without fuse protection put in between the bridge rectifiers. So maybe this is why it plays but poorly despite no F2 fuse

ty

I think it might be the bridge. unplugged most everything, keeps blowing fuse. only one dc out to the solenoids, from the power board, even registgers and its at 24v, where the schematic shows 34v, from 6 + outputs, while I have just 3. and only one shows voltage. going back to the bridge, I am getting a lot of different readings but it was the last thing I did. on diode test, it seemedI had very high resistance instead of .4-.6, more like 1.2. and a short. the connections are soldered in, i suppose I could swap them and see. ordering new ones. am i on to something? also, this is right where 11a should have a fuse on the AC in, and this one doesnt.