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Friday 20 April 2018 at 01:12
So I found that the CP pin 11 on U27B was misbehaving and therefore the output reset signal to the BSMT2000 was pulsing. The CP at pin 11 comes from the PAL chip at U20, so I replaced it and the reset signal became High, but I still had no sound. While debugging further problems though, the reset si...
Source: http://pinside.com/pinball/forum/topic/does-anyone-have-a-logic-probe-and-a-data-east-machine#post-4349977