Check the bottom board and playfield fuses early

Each bottom board fuse feeds one part of the game, so check them near the start of any repair. Playfield fuses also exist, and how many there are and their ratings change from game to game.

Line voltage is present at the bottom board, line filter and primary fuse whenever the game is plugged in.

Systems

• Gottlieb System 80
• Gottlieb System 80A

Related tips

• Bottom board fuses and what each feeds
• Primary line fuse rating
• Bottom board plugs A7-J1 to J8
• Under-playfield fuses on System 80 games
• Haunted House playfield fuses
• Black Hole playfield fuses
• The +12 V filter capacitor on the bottom board
• None of the controlled playfield lamps work

Source: System 80 Service Manual, Gottlieb