So I just got this cab and am completely befuddled with this monitor. It appears to be a 16 inch 2000-mc model and looks to have a (factory) common male 120 ac plug for 100 v line voltage. It doesn't look like a hack and I found a few pics online of other removed chassis with the same connector. However I don't see anything in the cab that it would plug into nor any isolation transformer. What gives?

