I have a 798c HB (down image & side image) that everything seems to work but the down image part, the bottom readout is very very light and sometime you can even see anything but a black screen, dont show any structure of fish or anything at times. The side image works as it suppose to, I mean I can see it and see structure and fish. The regular sonar part that is color works fine just the down image part seems to have a problem. I have this mounted on a Terrova w/iPilot if that matters Im not sure, also forgot to mention that when I go to the simulator the Down Image looks fine ??

thanks

maachuu