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Sunday 18 February 2018 at 14:55
Ok so changed the battery on my multi meter just to see if there was a difference and it seems the first four pins on that connector are around 25 and the last 4 are around 75.
Source: http://pinside.com/pinball/forum/topic/tftc-owners-fang-club-the-morgue-the-merrier/page/56#post-4236579