your cab won't take the original single slot CPO for a dedicated Neo Geo, which is the same as a multi-slot but missing the center "select" button hole.
your questionable conversion cab would take the Neo Geo Conversion CPO which has no button hole labels cause they were used in all of the various hacked to hell conversions or Dynamo cabs.
Pic from Hardmvs of the ded single slot. There were also ded Sam Sho cabs also.
I don't know why you keep on circling around the same questions when all of the info was laid out for you from the very first response.
1) check on hardmvs.com
2) yours isn't a ded
3) there are examples of many conversions on Hardmvs also
http://hardmvs.com/images/conversions/