Apelco Sounder/ Fishfinder

chippie

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I have purchased a used Apelco XCD241 fishfinder/sounder that has no cables. Can anyone please tell me which of the two prongs for the power plug is positive when looking at the back of the unit.
I imagine there is a diode in there in case I get it wrong but dont want to take the risk.
Thanks.
 

chippie

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21 Aug 2001
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Northland New Zealand
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Yes thankyou Steve. Unfortunately it is not clear which side of the plug is positive. If you look at the connection diagram, it shows the battery facing one way and the fuse apparently in the negative line. Would this be correct?

In the wiring diagram itself there is a diode, which line would this be in? pos or neg?
 
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