I've got a Neo*Geo MV1 with two problems. First, when I go into the test mode it thinks that the P2 Left is constantly being pressed. It's not. I haven't even wired up controller 2 yet.
The other problem is a little more complicated. I ordered a jamma extender from twistedquarter here: http://www.twistedquarter.com/index.php?main_page=product_info&cPath=177_237&products_id=1225
When I don't use the extender, everything looks fine. When I use the extender the screen looks like this:

Any suggestions on how to remedy this? I've not used an extender and it's clear not all the pins are connected.
The other problem is a little more complicated. I ordered a jamma extender from twistedquarter here: http://www.twistedquarter.com/index.php?main_page=product_info&cPath=177_237&products_id=1225
When I don't use the extender, everything looks fine. When I use the extender the screen looks like this:

Any suggestions on how to remedy this? I've not used an extender and it's clear not all the pins are connected.
