Star Trek Next Generation won't start a game and keeps kicking out balls, over and over.

STNG won't start and keeps ejecting balls: fuse F103

Cause: Fuse F103 (3 A slow blow) on the power driver board has blown. It feeds the coil for the upper under-playfield diverter; with no diverter the game can't place balls and keeps trying to reload.

Checks

• Check F103 on the power driver board.

Fix

• Replace F103 with a 3 A slow blow fuse and find out why it blew.

Systems

• WPC DCS

Games

• Star Trek: The Next Generation

Related tips

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• STNG: diverter coils lock on during play
• STNG: under-playfield diverter coils lock on during play

Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Three, Clay Harrell (pinrepair.com)