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ULN2803A Switch Matrix Driver Chip
ULN2803A Switch Matrix Driver Chip.
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ULN2803A Switch Matrix Driver Chip.
ULN2803A Switch Matrix Driver Chip.
Used in Williams/Bally pinballs from 1990 to 1999. It is common that you get the "Ground Short Row" error message in display when this chip is bad.
Williams/Bally reference: #5162-12422-00