Everything works except the flippers.

Flippers dead though fuses and EOS switches are good

Cause: Power for the flipper relay reaches it over short brown wire links soldered between header pins beside the relay; if one breaks or its joint goes cold, the flippers never enable.

Checks

• Inspect the two brown jumper wires on the back of the solenoid driver board.

Fix

• Resolder or replace the jumper wires.

Systems

• Bally MPU AS-2518-17
• Bally MPU AS-2518-35

Related tips

• Flipper weak, dead, or machine-gunning
• Flippers weak or intermittent from the solenoid driver board
• Flippers stop working after a few minutes of play
• One flipper dead with fuses good
• One coil dead with a good transistor and power at the coil
• Flippers and some coils work, others are dead
• No coils work at all
• Use a standard 3AG fuse in place of the short 8AG HV fuse

Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part Three, Clay Harrell (pinrepair.com)