Your Williams plays perfectly and says nothing. The sound board is a self-contained computer with its own fuses and its own power supply, so start there - then the select...
Your Williams plays perfectly and says nothing. The sound board is a self-contained computer with its own fuses and its own power supply, so start there - then the select...
A drop target bank that stays down is usually a target switch, not a board. If it resets at game start but never mid-game, the coil and driver circuit are...
A drop target bank that stays down is usually a target switch, not a board. If it resets at game start but never mid-game, the coil and driver circuit are...
A Gottlieb System 80 that will not boot rarely needs a new CPU board. Two jumper wires in the interconnect harness carry logic ground and +5 V to the driver...
A Gottlieb System 80 that will not boot rarely needs a new CPU board. Two jumper wires in the interconnect harness carry logic ground and +5 V to the driver...
Playfield dark but the game still plays? General illumination is a plain 6.3 V AC loop fed straight off the transformer, on its own fuse, with no processor anywhere in...
Playfield dark but the game still plays? General illumination is a plain 6.3 V AC loop fed straight off the transformer, on its own fuse, with no processor anywhere in...
A Gottlieb System 1 that will not boot rarely needs a new CPU board. Two switches have to be closed before the game will start at all, a missing -12 volt...
A Gottlieb System 1 that will not boot rarely needs a new CPU board. Two switches have to be closed before the game will start at all, a missing -12 volt...
