6 slot question

I was looking at my new 6 slot and I noticed that on the bottom board next to the headphone connector there are two 2.5mm audio connectors. The two that are on my board have broken contacts so I am going to replace them. I looked in the 6 slot manual and it said they are "audio in". Is that correct? Where these ever used, are they stereo or mono, and were can I find some with the correct pin assignment and spacing? Thanks for any help.

They are headphone out sockets (imho, must admit that I havent confirmed this) and they are stereo.

Why have them ? handy if you dont have the MV-1C memory card reader/headphone out pcb. You could run straight from the on board sockets.

Why do these (and other mobos)boards have the home system joystick ports is what Id like to know. Great for a supergun but why on a board set designed to sit inside an mvs arcade cab ???
Any ideas

AS far as I know the controller ports are for the mahjong controllers.

Thanks for the responce ttooddddyyy. Did SNK ever intend for the Neo MVS to be use as a home system? That could be why it has controller imputs. Look at the two slot. Has everything you will need to use it as a home system, but with just RGB outputs only.