Question about Humminbird Fishing System, 787c2 Combo Without Gps 4066801 Plus
This could be a lot of things. The unit employs multiple signals to gather data and it could be the transponder not getting the signal or it could be something simple like the sensitivity. Humminbird 757c Operation Manual Sensitivity
Posted on Feb 19, 2018
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
I found what you are looking for. Go to: http://www.humminbird.com/support/FAQ.aspx?faqid=72
You can download the operating manual.
Posted on Nov 26, 2008
SOURCE: turns off
The first thing you need to check is if you have sufficient power going to the fishfinder. Take a multimeter and measure the dc voltage going to the display when the unit is off and also on. If this is below 12 vdc this is your problem. You will need to check for loose connections and possibly replace your battery.
If the voltage is good then the problem lies within the display. Unfortunately, you would have to contact Humminbird directly to return the display for repair or purchase a new fishfinder.
Posted on Jun 29, 2010
SOURCE: I have Humminbird 525 fish
If you have someone that has the same or simular unit just slide there control head to the base just to make sure you have enough voltage and current to power the unit. If the other unit powers up then there is a problem with the control head. Then you will need to call customer service to get it resolved.
Posted on Jan 26, 2011
Tips for a great answer:
Jun 14, 2013 | Humminbird Boating
Aug 29, 2011 | Boating
Aug 13, 2011 | Humminbird GPS
Feb 06, 2011 | Humminbird Matrix 97 Combo Fish Finder And...
Jun 29, 2010 | Humminbird 161 Gps Fish Finder Combo
Nov 04, 2009 | Humminbird Smartcast Rf 35 Dual Display...
Mar 23, 2009 | Boating
Dec 29, 2008 | Humminbird Smartcast Rf 35 Dual Display...
Mar 27, 2007 | Humminbird 787c2 GPS Receiver
108 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: