Posts Tagged ‘Depth Sounder mn 100’

Juggling in Paradise

Tuesday, December 28th, 2021
Cruising isn’t all Sunsets and Mojitos. Cruisers often refer to life on the boat as “Projects in Paradise”.  And while a good part of both views are true; there are frustrations. Today is one of the many holidays in Oz. A month or so ago we discovered our depth sounder doesn’t work. As we’re not leaving immediately we added that to the project list and began to address the issue.
 
I had the same thing happen in Fiji. The TackTick read “Reset data”. There I replaced the battery and bingo. We were back in business. Not that easy but not bad. Thus, I ordered a new battery pack. That was after I discovered Battery World couldn’t make / replace the batteries. The cost went form 50 bucks or so to 100. Ok, life isn’t easy or cheap when traveling thus I bought the new pack. Installed it. Now I have a good battery but I still get the notice “reset data”. I did some web research and found my old post on the same issue. But; I discovered a Raymarine response on their website that when the unit does this it needs repair.
 
I called Raymarine and after a bit of discussion they would repair / replace the unit for $450 bucks. Fill out the web form and send it in. Well… my cruising brother Dirk told me years ago, in industry the rule of thumb is when the cost to repair exceeds about 40% , industry replaces with new. A new TackTick display would be $800. I bought a new display.
 
Received it 10 days later, all looks good and fire it up. Good charge and yet it does not connect to the base unit. I try everything. I try to be inventive with the 4 buttons. Still it will not connect to the master unit. I check the master unit; there is power there, I get a program to check radio signals and I have wifi from the unit. It still will not connect. I get out my old wired Display and try it. It will not connect.
 
I dig out the replacement mn-30 we bought while in Fiji. (See my way earlier post on this issue). I tried to connect it to the unit. Still no data. I search around, check the wiring on the transmitter. All good, voltage to it, good, transducer wiring solid. Check the transducer. It is a shoot through the hull and has worked flawlessly for 15 years. The fluid that transmits the sonar to the hull has slowly leaked out / evaporated. I replace it and try. Still no connection. I reset the mn-30, still no connection. I try the new unit I purchased, still unable to connect.
 
More research and I discover that the hull transmitter too has a battery. Maybe that is why the display has no signal. I leave the hull transmitter connected to power for 24 hours to charge and still no connection. I call Raymarine Australia. Guess what. They’ve shut down for the holidays.
 
Ok, I remove the hull transmitter and sure enough there is a battery opening on the back. Nothing in the literature indicates a battery there. Luckily I have a new battery. I put it in the older unit. The older unit doesn’t work so I figure to swap it out. I do. Reattach everything and still no signal to the display.
 
Now I think to my self. Dangerous; I know. When I was considering sending in the older unit for repair I believe I replaced the old battery. That means that I have now put an old battery in the hull transmitter. My head is spinning! I check the voltage on the three battery packs I have out, 1.2 v; 1.8 v, and the one I removed from the hull transmitter; 2.2 v. The pack when full ought to read 3.0 v.
 
I left the hull unit connected to power all night.
 
Again I am thinking.. more research. I check my blog entry in Fiji. I mentioned I had not installed the new hull transmitter yet I wanted to get the older one working. Damn, where is the new one we bought in Fiji. I check our inventory. The inventory has saved us many hours of hunting for things. But! Not today. We do not have anything listed under TackTick or Raymarine. Ok… the hunt is on. I can’t believe it; I find a newer mn-100 that we must have been using since NZ.  I had forgotten about it. I bring the display out and try to connect. It doesn’t connect either. Now I have 3 displays that do not connect to one hull transmitter; mn 30, mn 100, and an mn 100-2.
 
There is only one thing to do. Replace it all and make sure everything works. I return the display and order a new TackTick system.
 
All the while the wx here is … sorry… crappy! Rain and wind, wind and rain. The end result is that we are getting nothing done on the outside wood work. Patience Grasshopper, Patience. (Sorry about the reference to the old Kung Fu TV show).
Go Slow
Sail Far
Stay Long
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