![Williams/Bally ULN2803A Switch Matrix Driver Chip](http://nitropinball.com/cdn/shop/products/uln2803a.jpg?v=1659647162&width=324)
Williams/Bally ULN2803A Switch Matrix Driver Chip
Description
DESCRIPTION:
ULN2803A switch matrix driver chip used in all Williams/Bally WPC machines.
Common failure chip (position U20 on the CPU board). Common cause of "ground short row" error message.
Williams/Bally reference #5162-12422-00 & ULN, 2803A.
![Williams/Bally ULN2803A Switch Matrix Driver Chip](http://nitropinball.com/cdn/shop/products/uln2803a.jpg?v=1659647162&width=324)
Williams/Bally ULN2803A Switch Matrix Driver Chip
Sale price$3.00 CAD
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