Trying to get a Double Dragon upright working. On the power supply,
what is the difference between the FG (field ground?) and the regular GND.
I have evolved from a totally dead machine to one that posts the rom
tests,
then goes to the start screen and adds credits when the coin mech is
triggered. When I press 1 player, I get no results and am wondering if I
have a grounding issue. Can I safely jump the 1 Player and GND contacts on
the motherboard to see if I get a response?
Would love to find a service manual for this unit...but so far no luck.