I have a non colour basic Fish Finder that was working fine when last used in November. I connected the battery this weekend in prep for its service to find it as dead as a Dodo. I have checked the plug coming out of the unit and it appears fine. I don't think my Zodiac 9 man 2007 has a fuse box of sorts or switch panel. Could it be that it's just given up in all the damp wet weather even though it's been under cover? Any advice would be greatly received.
A volt ohm meter is your best bet. Test the wiring to determine you have power and ground at the unit before condemning anything. A test light could at least show there is some power, but won't show proper voltage.
