The Who's Tommy Pinball Wizard
Data East, 1994You're currently viewing posts by Pinsider terryb.
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The 72V reading doesn't sound correct. That could be an issue with your meter (if it's a cheaper one) reading a pulsed signal.
1 - 12V
2 - Key
3 - Clock
4 - Data
5 - Not Clear
6 - 5V
7 - Gnd
Clock and data will be 5V pulsed signals.
Quoted from McPin54:Meter is not a cheap one.
Then I would be trying to figure out where that 72V is coming from. If I'm reading your sequence correctly that line should be 5V data.
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