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need wiring diagram for old next step regulator

PostPosted: Mon Jul 13, 2015 1:52 pm
by Nord
The regiulator in my boat has a nearly square black cover held by four studs and small white nylon nuts. The terminals are on the bottom but I do not see labels on them so I don't know how to check out the problem at the moment. There is a brown, white, red and black wire but I do not know if I should trust the color for purposes of diagnostics.
I see no markings to indicate what model number the regulator is but perhaps the description will allow someone to provide that info and possibly a wiring diagram