The score motor keeps running and the game will not play.

1976 Gottlieb drop target games: score motor runs, AS relay stuck

Cause: On some 1976 Gottliebs the AS relay counts drop target bonus; if it does not advance, the game keeps trying.

Checks

• Check the under-playfield AS relay advances one step per pulse.

Fix

• Service the AS relay (see the AS relay procedure).

Systems

• Electro-mechanical

Related tips

• Gottlieb multi-player: motor runs on at player 1 ball 1
• Score motor runs on at game over: end game relay not pulling in
• Gottlieb hold relay runs the whole time the game is on
• Wrong player comes up on ball 2 and scores won't reset: stuck P relay switch
• Gottlieb reset bank solenoid and S start relay run on 120 V
• Gottlieb relay return springs
• 10-point reel keeps scoring after a mushroom hit: series relay coil stuck on
• Gottlieb 1970s Ax/Bx latch-trip relays misbehave

Source: Repairing Electro-Mechanical (EM) Coin Operated Games to 1978, Part One, Clay Harrell (pinrepair.com)