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Old 05-24-2010, 03:01 PM   #1
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1971 18' Caravel
St Augustine , Florida
Join Date: Apr 2010
Posts: 14
Control Panel Wiring Diagram

I suspect that when my AS was manufactured in 71 that all the wiring behind the control panel went to the circuit board via a spade connector and all 12 volt devices were connected the same way. Over the 39 years this fine unit has lived a few fingers have worked their majic by removing a wire here and there and some wire nuts have been added to make something work "better".

Is there a diagram in existence that I could follow to reinstate the use of the circuit board and get rid of the wiring nightmare that has evolved behind the control panel?

Thanks in advance!

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Old 05-24-2010, 05:16 PM   #2
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1975 31' Sovereign
1973 27' Overlander
1977 23' Safari
Palmer Lake , Colorado
Join Date: Oct 2005
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The original schematic for the 75 and later models is in post #1 of this thread. Note that in the schematic, three tanks are depicted with three resistors--using this resistor ladder allowed the newer tank monitor to use only two wires per tank and still give 4 different level readings.

The earlier 70s system merely connected each tank sensor to a transistor, which switched on its associated bulb. There are four wires to the water tank (one for excitation and three level sensors) and three to the black tank (one for excitation and 2 level sensors).

The only spade lugs (from trailer wiring to the panel, their are others local to the panel) were for the ammeter. All the other connections were via a single large 12-pin connector (4-water tank, 3- black tank, 1-water pump, 2-power and ground, 1-battery, 1-blank). The battery lead was somewhat redundant, but it avoided any voltage drop that was incurred in the power wire.

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