Testing Williams WPC-089 General Illumination Buffer Chip Signals w/Logic Probe
Video
Summary
Hibler demos logic-probe testing of WPC-089 general illumination buffer chip signals (clock and blanking pins).
Chris Hibler Pinball demonstrates a logic probe test on the general illumination buffer chip (WPC-089 board), checking pin 11 (clock, pulsing high) and pin 1 (blanking, solid low). It is a short, hands-on repair tutorial with no pipeline, business, or market news relevant to the pinball industry.
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