[CA] [CA11] Getting a no transducer connected on my A128

[BOBBY SMITH]

I have an A128 that is about 4 years old but has been stored inside for the last 2 years. I have a CP200, along with a CPT200 and CPT100 hooked to it. The A128 has been used very little, and has been handled carefully. I am in the process of buying another boat and I am trying to make sure it is working correctly before I put it on the new boat, so I am testing it while not on a boat. when all is hooked up, I am getting a "no transducer connected" message. It does allow me to choose between the CP200 or internal sounder. Even when I disconnect the CP200 from the A128, it isn't recognizing the CPT200. I am comfortable that all power cables are tight and connected to a strong battery. All cables are connected correctly to the A128 and CP200. My guess is the problem isn't with the CP200 since the problem still exists when the CP200 in not connected. I happened to have a new in the box CP200 and CPT200. Nothing changed when I hooked the new ones up. Any and all help is greatly appreciated.