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After talking to Wilbur today, this is what I believe the circuit is like. This gives me a reference paper when I start probing the circuit.
I believe the brown fused wire is tied to a snubber circuit (possibly a high speed recovery diode, maybe 5A-10A) in the control module. This is a SWAG, but I am a betting man.
What say you? Suggestions.
If you say so.:confused: I ain't as edjumacated as you, just a dumb ole fireman!;) Get it figured out and I may hook mine back up.
I would guess it's along that line. Maybe this?
http://i4.photobucket.com/albums/y111/Catfan96/TM.jpg
From the MK memo, we know that connecting the TM battery to the finder will blow the fuse, so it is a guess that that happens on the negative side, telling us the negatives can't be connected. Whether TM neg or FF neg are connected to the case is unknown.
John ought to be in the shop tomorrow, and I'll talk to him.
Is your TM grounded to the neg side of the battery?
Had a noise problem, just ran a wire from the TM base to the neg wire and problems went away.
More info, courtesy John Jones.
The fuse is in the head, and is a small inline blade-type fuse in the negative lead to the light.
These motors generate 12V internally for the light, even if the motor is 24 or 36V.
Maybe this will help. This shows what CATFAN just said.
Attachment 51280
Well, today I have gotten 3 different answers about the brown wire from Minn Kota repair centers. ha