Eric, read your manual ( I think its in the installation manual). Hold down the menu key while you power the unit on. The setup mode screen will appear. Choose the option at the bottom of the screen to simulate....
also, there is no set settings to fishing the deep, everyday is different. Understand what each setting does ( I can show you), by starting with the basics and and it will soon become clear.
Hi Snips and Dougie
Thanks for your replies. I have now found out how to use DEMO and I have also managed to connect the Lowrance. Seems like it does need all 4 wires to be connected
Regards
Eric