New to the forum . Did some searching on this first and did a little troubleshooting. I've had a DE Simpsons for 20 years without a problem. Powered it up a few days ago and the left and right flippers are extremely weak. Also, the laser kickback solenoid actuates when I press either flipper button. Checked fuses on PPB and F5 was blown, so apparently I'm not getting 50 volts to the flipper board. Replaced it with a 5 amp slo-blow and It immediately blew when I powered it up. All three of these coils measure 3.9 ohms across leads so which I'm assuming is normal. I do have a 40 page manual on this which seems complete, although the schematics for the PBB and Power Supply Board is a separate page from some other source. Any suggestions on how to proceed?