GAL CHIP 17002 DCSC$20.00PriceQuantity*Add to CartUSES:GAL chip used in Bally/Williams pinball machine DCS sound boards (1993-1995). IC REMOVAL & INSTALLATION INSTRUCTIONS https://www.pinballrom.com/_files/ugd/0a3635_1f0af8ba09644eb78d30e50f112cf374.pdf