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Raymarine C120 Low light Screen Problems


Raymarine C120 Low light Screen Problems

Old 02-15-2012, 12:05 PM
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Default Raymarine C120 Low light Screen Problems

I have a Raymarine C120 Unit and when I lower the intensity of the back light for running at night the unit will randomly flash a white screen at full brightness and kill your night vision then return to the screen and low brightness setting it was on.

Very frustrating and somewhat dangerous problem seeing if anyone has had or heard of this issue before and what they did to fix it.
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Old 02-15-2012, 01:57 PM
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Never had that problem. Sorry
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Old 02-15-2012, 02:02 PM
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my E120s do the same thing just getting ready to send them in to get fixed,was talking to the reps at the ac boat show and they were aware of the problem. Don't know what the cost will be my unit are 2007
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Old 02-16-2012, 06:15 AM
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I did some more research and a lot, more than>50 users with E120 and C120 And even some of the smaller units have the same problems.

From what I understand it is and issue with using the SeaTalk network for the power suppy to the unit.
1. The unit is apperently extremely sensitive to voltage drops
2. The problem occurs more at night because most people turn there radar on more at night causing issues with the power draw from the seatalk system.
3. Part of the SeaTalk system's harware is malfunctioning.

If not using the seatalk for the power source ie: direct run from battery
1. The wire used was to small to handle the draw of the unit
2. A washdown pump or earator pump is conected to the battery and is causing a sudden drop in voltage upon start up

There is a wide range of solutions to this issue that users took to "fix it"

From what most users said when they contacted Raymarine; Raymarine told them in one breath that their unit had the most recent and updated firmware but then in the next breath that it was a firmware issue and had them send the unit back....... most of these users still had the issue when they got the unit back.

Most people did not have to send there units in, just had to address the power supply issues and the units functioned fine. (This seems to be the best solution)

Some send the units back in and got them back with the same issues occuring again.If it is a power supply or drop in voltage issue this will be impossible for Raymarine to figure out in their service center as it will be a boat specific issue.

One user claimed that they threatened Raymarine that they were going to protest their product at an upcoming boat show and got their units replaced. (I thought this was funny and probably a hoax)

Hope this helps
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