LS21OO LCI SCR Location

Hello all,

I have a question in regards to the SCR locations in the LS2100. I recently came across a 67 fault which indicates there is a "shorted" scr, and from going through the wizard it say's that the location is Source B N2 SCR 1. I think that this is saying that it is in the Source Bridge, B phase, but I am not sure about the N2 and the SCR 1. I have looked through the GEK's and searched online with no luck. Any help is greatly appreciated.

Thanks,