i need correct circuit board 4 my roger black treadmill?

i bought a silver model AG-10301 from an auction, yeh i know silly thing to do, but cudnt afford full price one. there's power to it but no display working as when i luked at its circuit board i found a burnt out joint on it. so got in touch wiv argos not ad any luk wi them as the boards they sent are the wrong one's n really need to get it working, asap. can any one help me find the correct serial/model no's 4 the circuit board. PLZ.ta