The upper right flipper is usually strong but sometimes goes weak. After a playfield clean the flipper buttons stop working altogether, though coil test fires the flippers and the EOS switches register.
Upper flipper sometimes weak, then buttons dead after cleaning: replace the flipper optos
Cause: Failing flipper button optos and poor connections to them (this is a Fliptronics game with opto flipper buttons).
Checks
- In switch test, press each flipper button and check its opto registers.
- Check and reseat the connectors to the flipper opto board.
Fix
- Replace the flipper button optos and clean and reseat all their connections.
Systems
Games
Related tips
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Source: Pinball Repair help group!! (Facebook group)