koolego Posted December 15, 2018 Share Posted December 15, 2018 Hi, I have ordered some new coils and when looking at how I think it should be wired its different from what was previously wired up. I am not sure the previous wiring was correct correct cause the board has a blow transitter. From image below I wire the hot to number 1. Can someone confirm. Previous wiring was as shown below. Thanks Link to comment Share on other sites More sharing options...
Autosteve Posted December 15, 2018 Share Posted December 15, 2018 (edited) The grey line on the diode MUST go to the positive wire. The diode can be either way on the coil but you have to wire to the coil accordingly. The direction of the diode always determines which wire goes where. Edited December 16, 2018 by Autosteve Link to comment Share on other sites More sharing options...
ajfclark Posted December 16, 2018 Share Posted December 16, 2018 What machine was this on? Depending on the vintage, it may even be that the diode is not required at all as there's a diode at the board. If that's the case, the diode can be cut off and the coil wired either way. If diodes are required, it's important to keep in mind how they work. One direction they don't allow power to flow and the other they are effectively a short. Hence, when you installed this coil with the diode in reverse to the previous installation, the power flowed directly through the diode with 0 resistance, so the fuse blows immediately. Link to comment Share on other sites More sharing options...
Administrators Arcade King Posted December 16, 2018 Administrators Share Posted December 16, 2018 Looks like a Data East machine to me which have the black beast coils. Link to comment Share on other sites More sharing options...
razorsedge Posted December 16, 2018 Share Posted December 16, 2018 Data East/SEGA... My batman Forever the Brown wire goes to the banded side of diode. Just as diagrams in manual show... There needs to be a diode on the coil. Previous wiring of your knocker appears correct :) - - - Updated - - - For that new coil, you need to either reverse the diode, with Brown wire on left lug in pic... or attach Brown to the right lug in your pic. Brown wire must go to Banded side of diode. The Purple wire connected to Unbanded end of diode. What game is this exactly? Link to comment Share on other sites More sharing options...
koolego Posted December 16, 2018 Author Share Posted December 16, 2018 Its a Data East Star Wars. Link to comment Share on other sites More sharing options...
razorsedge Posted December 16, 2018 Share Posted December 16, 2018 Fantastic! ... that confirms it :) Note with the diode symbol on the diagram there, the line or bar represents the banded end of the diode. As you can see on the diagram there it is definately connected to brown :023: Link to comment Share on other sites More sharing options...
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