hooking scan converter to arcade monitor.>HOW ?

[SNAAAKE]

got this scan converter..i got 5 wires comin out of arcade monitors right?

RED,BLUE,GREE,SYNC,GROUND

Now i got this scan converter that has 4 outputs..R G B and sync.

how do i use the ground wire from the arcade monitor..?
Also,I cut a BNC cable and i see 2 wires inside of it.One is not insulated and the other is..NOW,the non insulated wire is the ground right?

Now I am guessing I gotta slice all those NON insulated wires from each BNC cables(RED,BLUE,GREEN) then spice all the wires to arcade monitors ground wire right?
and the insulated wires are regular common which i should be splicing with the R G B cable coming out of the arcade right?

I am just not very bright on this monitor problems..so HEEEEEEEEELP !...its better to be safe then sorry right people?

thanks for any help..

[JMDickson]

(the Super Emotia right?)
  The shield of the BNC connectors is the ground. If you are using coax, the braid around the conductor can be used.  When I was first testing mine, I strapped the ground wire to the metal ring of the sync connector.

[SNAAAKE]

oky so i am assuming the ground is the shielded wire inside the BNC cable right.and the one striped(non shielded) is common right?

Thanks for the quick yet the right answer..you are like always there for me man..thanks again

its the extron emotia plus converter.Got it pretty cheap the other day.