HS: Flippers fuse keeps blowing

eh97ac

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After reading pinrepair/sys11/flippers.....I'm stumped!

I rebuilt all 3 flippers with new kits and FL23/600-30/2600 coils. All 3 work nicely for 2-10 shots and then the SB 5amp fuse goes. I have 76 volts on the input and output of the flipper board and 76 volts on all 3 flipper coils.

I went ahead and de-soldered the diodes on the coils and they check out correctly on my DMM.

Any ideas?
 
Keep activating one side (left ) to see if that blows the fuse, or does it only happen when both right flippers are used?
 
For what it's worth, a friend of mine had the same thing on his sys 11(Radical). The flippers worked when he got the game, but after installing new coils the fuse would blow. I can't remember what he said the problem was. I will ask him tomorrow.
 
For what it's worth, a friend of mine had the same thing on his sys 11(Radical). The flippers worked when he got the game, but after installing new coils the fuse would blow. I can't remember what he said the problem was. I will ask him tomorrow.

Thanks, much appreciated.
 
I want to take a dive of a tall building.

I had one plunger/crank assembly in upside down. All works now.
 
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