Dash lights not working on 73 Duster

Please understand i've only just bought the car and i'm trying to put someone elses problems right. I read another thread where a guy had a faulty back light and it knocked his dash lights out, as regards the connector block, it appears on the other side on the wiring diagram. I've sorted the rear lights, cleaned the earth, put connectors on and connected the correct wires together, still no dash lights, i'm going to pull the cluster right out and investigate.