Should coin doors get 12v and some ground questions?
I just rewired my Bubbles cabinet for my Multi-Williams setup. It originally had a partial JAMMA harness. I completely removed it and added a brand new Bob Roberts' JAMMA harness.
I followed his instructions and it says to run a 12v lead and one of the chassis ground (one of the lower ground wires on the adapter) wires to the coin door.
I wired up my coin door and it all works. However, it seems kinda shaky. Why?
1) While wiring it up originally I accidently shorted some of the coin door wires while wiring it with the cabinet on (doh!) and I fried my JROK board. Not fun. He has since fixed it and I fried the input buffers.
2) So, for the time being I have a spare JAMMA board in the cab. I just swapped out the bulbs while the cabinet was on and I got a spark while changing a bulb and it locked up the JAMMA board when it did. I reset the cabinet and it's fine. But it scared me. I didn't want to fry another board again!
3) The lights seem REALLY bright. I am using 44s. I guess this is normal for 44s, but they just seem bright. Can 44s take 12v? I think they are 14v lamps, so should be coolio.
So, is it ok for me to have 12v going to the coin door and is there a problem with using one of the logic or chassis ground wires from the harness for this 12v? I know Bob Roberts says in depth why it is ok but I wanted to get some opinions here first before I plug my JROK board back in. I am really scared of frying it again.
Or, is this all silly and all my fault cause I am wiring stuff while the cabinet is on.
I just rewired my Bubbles cabinet for my Multi-Williams setup. It originally had a partial JAMMA harness. I completely removed it and added a brand new Bob Roberts' JAMMA harness.
I followed his instructions and it says to run a 12v lead and one of the chassis ground (one of the lower ground wires on the adapter) wires to the coin door.
I wired up my coin door and it all works. However, it seems kinda shaky. Why?
1) While wiring it up originally I accidently shorted some of the coin door wires while wiring it with the cabinet on (doh!) and I fried my JROK board. Not fun. He has since fixed it and I fried the input buffers.
2) So, for the time being I have a spare JAMMA board in the cab. I just swapped out the bulbs while the cabinet was on and I got a spark while changing a bulb and it locked up the JAMMA board when it did. I reset the cabinet and it's fine. But it scared me. I didn't want to fry another board again!
3) The lights seem REALLY bright. I am using 44s. I guess this is normal for 44s, but they just seem bright. Can 44s take 12v? I think they are 14v lamps, so should be coolio.
So, is it ok for me to have 12v going to the coin door and is there a problem with using one of the logic or chassis ground wires from the harness for this 12v? I know Bob Roberts says in depth why it is ok but I wanted to get some opinions here first before I plug my JROK board back in. I am really scared of frying it again.
Or, is this all silly and all my fault cause I am wiring stuff while the cabinet is on.
