(Topic ID: 15589)

Cyclone hates me. Need some tech help

By BrianZ

11 years ago



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#4 11 years ago

Just a guess, but did you check pin 12 of U41 (a 6821 PIA) on the CPU board? According to the Cyclone schematic, this pin controls segment C on score displays 1 and 2, which is the segment your photo shows as being constantly lit on all digits. If your tests indicate that this pin is always high, perhaps the U41 IC is the culprit.

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