JAMMA help needed (Lucky and Wild)

vintagegamer

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Today I drilled the lock out for the coin box area, and lo and behold the manual for my Lucky and Wild game was in there! So, I'm using it to help me learn the ways of the JAMMA.

My Lucky and Wild game needs a flyback so while I'm waiting for that to come in the mail, I'm trying to troubleshoot it so it will at least play blind. In the attached pic, you'll see a white connector going into what I believe is the EMI-PC board (as per the manual). The connector is a 9-pin connector, and I'm trying to determine its location on the attached schematic. I'm guessing it's the box shown above the fluorescent lamp on the schematic, but for some reason I don't think the wire order on the connector in the game matches the schematic. It's showing the numbers as 1-9 on the schematic, so I'm thinking that 1-3 on the connector go from left to right on the top row, with 4-6 being the second row, and 7-9 being the 3rd row of the connector. Does anyone know if that's right?

If I pull the connector from the board, what I 'believe' to be wire #4 (purple) is burned, as is the wire below it in the connector (my guess is that wire would be #7). But, if you use my wire order as the guide while looking at the schematic, the schematic shows there's no wire at #7. So, basically, I could really use some help in understanding with what I'm working with here! :(

I've noticed inside the coin box area also that there is a test switch, however I need the screen to be working to use it. Damn I hate waiting for mail!

Any help from you JAMMA dudes would be greatly appreciated.
 

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You correctly identified the connector on the schematic. The easy thing to do is disconnect the white connector and then power on the machine. Using the black wires as ground put your meter on each of the other wires in order to see what power they are supplying. The red are most likely +5vdc. Report back with your findings.
 
You correctly identified the connector on the schematic. The easy thing to do is disconnect the white connector and then power on the machine. Using the black wires as ground put your meter on each of the other wires in order to see what power they are supplying. The red are most likely +5vdc. Report back with your findings.

thanks for the help richard- today i learned that to follow the schem, the connector values run vertically. So, wire 1 on the schem which is 5v, is the pink wire in the upper left corner of the connector. Under it is a purple wire at num 2, that is the ground wire. That's also the wire that burned in the connector. Slot 3 has no wire. Slot 4 is another 5v wire, also pink, and that's at the top of the center column on the connector. Under that at slot 5 is another purp wire, another grnd. No wires at 6 or 7, wire 8 is orange and is the 12v. I checked the voltages and they are 5.0, 5.0, and 10.5. That connector is really chewed up tho. I guess next is to check some caps for voltage on the main board.
 
Yes, you should check the board for power. I have a feeling that the burned ground connector may be preventing your board from powering up. Are the pins something standard? The housing looks like a Molex .093 12 position, but I am not certain.

BTW, if you replace the burned pin you will need to replace the soldered on connector on the other board as well. If you don't replace both the new pin can get damaged very quickly and you will be right back where you started from.
 
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