Question about 1942 Jamma Board................

[dsquared2]

I just bought 1942 Jamma board but it is no graphic and no response. when I turn on my Supergun, the Power light will be on but I tried this jamma board, no power light on when I turn on my Supergun. I thought my Supergun was blown but I tired my other boards, the power light on again and works great. It is so strange. The seller said this board works well.

[Pocket_Man]

1942 has a connector wich looks like jamma but isn´t jamma.
youll need a jamma adaptor. like this1942