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sounds like the gain is way too high! when you can see all of that extra when you sink a jig its up too high. try it half way up on the gain instead and use narrow beam if fishing more than 20 feet of water.if you can hit it and get it to work it's a loose connection. if the connections are good even in the back of the unit it may be a loose internal connection.you do want open water mode tho.only keep an inch in of the puck the water and centered in the hole.here's more on how to use one.http://www.iceshanty.com/ice_fishing/index.php?topic=319913.0
Honestly vt send it back to marcum. Or contact them. I had an earlier lx7 than you and had zero tech issues. Only problem I had was loose terminals, which was an easy fix. My buddy now has that unit and still no issues.
you say that you had a lx7. Do you still?
Did get it from a local shop? Bonus from one of our local shops they have loners if you bought it from them while it's getting fixed. Pretty cool plus imo!
I clamped the cap out of the terminals today and it didn't shut off on me at all. Still had the annoying ghosting thing going on every time I would drop down a new hole. I know it wasn't mud because it happened on the way down. Hated having to wait for my screen to clear up to see what was really down there.
Possible it's stuff in the ice (dirt, algae) which falls out and is sensed by the unit. I have had that happen too, and it usually stops after a few minutes. It might help to drill holes a few ahead, and then by the time you get over to fish them the stuff will have settled.
Not sure this applies to your Marum woes
I've read up on that. While I have seen what is described in the video, I have the issue even when it's above freezing while using 4 lb mono. I don't run braid on any of my panfish reels.
Also when hole hopping ...and you get some wonky readings ...just turn the unit off and on again ...especially if your using bottom zoom ...fixes a lot of stuff.Could be the curls in your line ...as you letting it drop/feeding it down ...you do have the latest up date I am assuming
there are a lot of unanswered questions here.is it under warranty?is this a used unit?did you reset it?did you check your transducer cable for cuts?did you drop the transducer ever?is it cracked?have you shaken it to listen for noise?did you check the connections and cables behind the head unit?is the battery new or in good shape and charged?are you fishing it like macums manual says to do?did you call marcum? that's free and your best option always. we try to help here, but they are the experts.toll free number is 888-778-1208hope you get it figured out. the power issues you mention leads me to believe it may have hurt the sonar engine or software tho. one problem leads to another many times.a reset or firmware reinstall may fix it. that's also free and easy to try and only take a moment to do.you said you upgraded the firmware from day one. did that go correctly? why didn't it have the current fimware when you bought it?you sure have bad luck with ice gear. this and your new hut. hope some thing goes well for you some time soon.
okay.i wish i lived closer to see if it's setting or needs to go in for what ever the power issues may have caused or not. i would like to help more is what i'm saying.if you do send it in. it takes 10 days start to finish. it takes one day in the shop is all. if you want to expedite any of that shipping time you can pay the extra to have it back in 5 days or less. otherwise it's all free. i have an extra transducer i would try to narrow it down, but all of this time trying to figure it out could be time in the usps truck or ups or fedex.here's some suggestions i posted for getting them dialed inhttp://www.iceshanty.com/ice_fishing/index.php?topic=319913.0i know i can get a sonar to follow the air or disturbance caused by the jig if the gain is too high even on my ice-55 hb.i keep just an inch in the water and it works the same as all of the way under the ice plate, so there's no need to put more in the water than an inch. i pulled over 30 fish out the same hole my marcum transducer was in with out having to move the transducer at all fishing it it this way. it' makes catching fish all the more easier to land them. not one time was a worried a fish line would get caught on the transducer cable. it only had about 2-3 inches of cable exposed at any one time. it keeps the puck centered so it's not leaning on the ice and you having to turn up the gain to try to find your jig because of it. the arm and the just wet puck is great and it's one of the things i like a lot about marum's ingenuity.if your using a scent to attract fish that's like oil base it will do that too.try reflashing the firmware first. that's what i would do if it were me. it boots just like a computer and it may have corrupted data on it from bad power connectors.