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  • Wondering what the lights on your battery charger mean? Check out this video for some helpful tips on what your charger is telling you. "use strict"; document.addEventListener('DOMContentLoaded', function(){if (window.hideYTActivated) return; let...
  • Needing to replace your fuse on your wiring harness because your battery is not charging? Check out the how-to video below on how to replace your fuse. If you are unable to find a 2-amp fuse to replace your current fuse with, a 3-amp fuse will also work...
  • Check out the video below to learn how to tell if your 12 volt battery is properly charged and able to run your MarCum sonar unit and how we set up our volt meter to read the voltage of the battery.  <iframe width="640" height="360"...
  • batteryWondering what the difference is between a 7amp and 9amp battery? Check out video below to see which battery is right for you. "use strict"; document.addEventListener('DOMContentLoaded', function(){if (window.hideYTActivated) return; let...
  • If your RT-9 is having trouble acquiring satellites, try some of these tips to help connect to GPS satellites.  To achieve fast startup and high-accuracy position estimates, you should provide: Clear view of a large portion of the...
  • Wondering how to switch the sonar displays on your MarCum digital series unit? Check out the video below on how to customize your sonar unit display to your "use strict"; document.addEventListener('DOMContentLoaded', function(){if...
  • Wondering how to download apps from the apotoide store on your MarCum RT-9? Check out this how-to video to download apps to your RT-9. "use strict"; document.addEventListener('DOMContentLoaded', function(){if (window.hideYTActivated) return;...
  • The LX-5, LX-5i and M5 come standard with a dual beam transducer that allows you to choose between a 20 or 8-degree transmit cone (angle). When the unit is first turned on, it will be transmitting utilizing the 20-degree element. To...
  • Wondering if your sonar unit is operating correctly? Check out the video below on how to do a couple simple tests at home to see if your unit is functioning properly. NOTE: Firmware 4.07 or 2.31 on the LX-9: open water mode and sensitivity to 8  ...
  • LX-9 A/V PORT On the back of the monitor there is a rectangular rubber cap that protects the SD recording mechanism,the RCA video out jack, and the USB port. Utilizing the RCA Jack: There are many anglers with large ice fishing shacks that with a big...
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