Shnyd321

Looking for help with my Lowrance HDS7 gen 2. I am not able to get depth. Under data source/depth I am only seeing (Invalid) and cannot get it to read. Is this a transducer issue? When I plug my Elite-7 HDI in I am getting depth and temp as expected. Originally I had a 3-1 transducer and was only get temp and side scan. I thought was a transducer issue so I tried on another boat that I have elite 7 hdi and not working there either. I have 2 of these gen 2 hds7’s and experiencing the same issue on both. Are they junk or do I need to search somewhere else in settings. I have also tried switching the transducer type under sonar insulation. Not sure what to choose but no of them I toggle through are helping. Any info is greatly appreciated.