Having no luck for some reason, not sure what's up. Did connect the power cord and poked it and got a DC voltage reading around 15 and also connected it to the system and get a reading by poking the wire portion of that yellow part where it connects and I get the same but when touching anything else I get no readings, all at 0. Would put black on ground and poke around with red where the white boxes/metal is on those chips you circled and nothing. Even poked other stuff and 0 as well. Does the system need to be powered on or something?