Upper Flipper is sticking

reported by Chris W. BK failed (power/electronics/display) mid-game. worked ok after reboot though. Cayman to email about Black Knight, Meteor, Black Pyramid

Coil burnt, game is off and unplugged

at least 6+ lights are out in a row, indicating possible matrix issue. flippers could use a rebuild (per Chris E).

Loss of flipper strength/power (intermittent); lock does not register on upper playfield