Evening.
New boat has a fish finder on it Garmin 80.
Wires on back split into 2 one set off to transducer and then a red and black that i presume are live and earth.
Question is how do you turn it on?
I tried all the buttons but get nothing there is an inline fuse in the live that is fine.
Does anyone know if there is an internal fuse as im begining to think its knackered.
Pete