Showdown Troubleshooter If you are experiencing an issue with your Showdown, you will be able to find an answer to your issue in this trouble shooter. Having trouble with your MarCum Showdown sonar? Choose one of the issues below to start your diagnosis. Having trouble with your MarCum Showdown sonar? Choose one of the issues below to start your diagnosis. My Showdown Troller will power on and only go into simulator mode. My Showdown Troller 2.0 Combo (using external battery) will not turn on. My Showdown Troller 2.0 (using AA batteries) will not turn on. My Showdown 5.6 will not turn on. My Showdown will only turn off when the power cord is unplugged. My Showdown has a weak signal / will not register depth. My Showdown transducer is not clicking. My button(s) do not function when pressed. I am unable to register my Showdown. Other. Email this page Recipient Email * Your Email * Your Name * Print Share Facebook Twitter LinkedIn Reddit Is this answer helpful? Yes No