Run the System 80 lamp (16) and solenoid (17) tests

Steps

• With the game booted, press the coin door's red diagnostic button; the credit display shows "00".
• Press the start button to skip past the audits to test 16, the lamp test.
• The game relay, tilt relay and coin lockout relay each pulse twice, then lamps light in order from L2 to L51 for about 30 seconds. Coils pre-driven from lamp outputs (often L12-L16 via Q13-Q17) also fire.
• Press the test button again for test 17: solenoids 1, 2, 5, 6, 8 and 9 (Q60, Q58, Q62, Q64, Q53, Q59) fire once each.

Systems

• Gottlieb System 80
• Gottlieb System 80A
• Gottlieb System 80B

Related tips

• What the System 80 ground modifications achieve
• What the System 80 driver board transistors drive
• System 80 driver board transistor types
• One driver board fits every System 80, 80A and 80B game
• A CPU-controlled lamp or coil stays on
• Drop bank reset coil dead everywhere: driver ground wire moved to the wrong J4 pin
• First power-up, step 5: add the driver board, then coil power
• Coils lock on and burn because of the Gottlieb ground fault

Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)