Sound and DMD controller fuses (WPC-89 and WPC-S)
Sound board: F501 3 A slow (-25 V) and F502 3 A slow (+25 V). Dot matrix controller: F601 3/8 A fast (+62 V) and F602 3/8 A fast (-125/-113 V).
Systems
Related tips
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Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part One, Clay Harrell (pinrepair.com)