Working on my Jokerz! Replaced both of my flipper assemblies (very worn) but both were working. Replaced coils at same time since neither matched the correct part number. Now, left flipper working, right flipper is not.
Things I've checked that are good:
F5 & F6 fuses are good.
Voltage at all coil lugs is ~70V.
Resistance across flipper lugs relative to common lug is 4.6ohms, voltage return lug goes to 155ohms when EOS switch opens (both coils).
Voltage at flipper button ~170V (both flipper buttons).
Resistance across flipper buttons goes to 0 when button pushed.
In play mode, left flipper button changes lane lights, right does not.
In play mode, left coil voltage at outer lug going to EOS (blu-gry wire lug) goes to 0V when flipper button pushed. Right coil has no voltage change at same lug (blu-vio wire lug).
Not sure where to turn to next, assuming it's in the circuitry in the backbox? Any thoughts? Help greatly appreciated!