wiring for Humminbird 100 sx

[richg99]

Outdoorsman

Registered: 01-13-2003
Posts: 137
Loc: Houston, TX USA
Hi guys, I have an old Humminbird 100 sx fishfinder that I want to put on to my boat. It hasn't been run in a number of years so I simply want to test it out before installing it.

I have the transducer that simply plugs into the two wire connector on the back. I also have another "cord"
( but it actually appears to be a short coax cable) that plugs into the OTHER two wire connector on the back. I was ready to hook up my 12 v battery and drop the 'ducer into a pond to see what came up on the screen.

But, when I realized that the second cable was a coax......I stopped. Humminbird no longer has the manual for this FF on its screen. Can anyone verify for me that the second wire ( the only other two wire connector) is actually for 12 volts? thanks Rich

 

[John_S]

Re: wiring for Humminbird 100 sx

100SX manual: http://www.humminbird.com/PDF/100sx.pdf

The power cable should have a red and black wire. It might of had a shield, but not sure. If it has a rectangular connector with a keyed corner, it is probably it.

 

[richg99]

Re: wiring for Humminbird 100 sx

Thank you. The picture of the connection panel, in the manual, clearly shows the place that I am plugging the cable into IS the power inlet. Thanks. I've saved the manual for future use. I could not find that manual on the Humminbird site. regards, Rich