Sorrey Caz. I looked around to narrow down which goodnams recorder you have but could not identify. Diffent goodmans models appear very different in how to make them work for you.
I sugest you look at the back and underside of the goodmans recorder for the model number of and re-ask the question stating the model number.
Also next time state the make and model in your question tiltle because that way you will attract more knowledgable people.