Here is some video of the issue I am having with my 1198.
http://www.youtube.com/watch?v=oqCQyYpmHtE
This unit was purchased new and sent to Ranger to install. I have the SI mounted and a shot through hull transducer of the high speed pickup. Again everything was installed at Ranger. I have verified the following…
Checked all accessories and cables for nicks, cuts, or physical damage and found none
Unpluged the transducer and all other accessories, except for the power cable, going to the fishfinder. The depth sounder operates properly, and then I reconnect the transducer and accessories one by one but was unable to reproduce the issue.
Checked for proper voltage to your depth sounder at the connection to the battery/fuse panel.
To ensure that I am getting the proper voltage to the fishfinder. I also verified voltage with all electrical equipment running as well as with the main motor and/or trolling motor running at different speeds and verified proper amperage. I had no over-voltage, under-voltage or electrical interference.
I also checked for electrical interference
Checked depth sounder with the boat sitting still, with all electrical equipment and motor(s) off. To eliminate any possible source of interference. This verified no electrical interference the boat equipment.
Eliminated all accessories by turning each piece of equipment back on individually and was unable to find any interference.
I even went as far to create an in-line fuse, connecting the 1198 directly to the battery. To eliminate faulty electrical connections and electrical interference, which may have caused a problem but still had the issue.
Verified boat’s grounding system to ensure it was not operating on a “floating ground”.
Let me know if you have seen the same issue and if/how you were able to remedy.
Thank you,