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Old 24 March 2016, 17:43   #1
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Country: UK - England
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Chart plotter

Hi guys went down to boat today my lowrance 7000c screen was flickering but but back lighting was ok only all the data was all dazaled and flickers reset it but the same hope the lcd screen is not gone can it be repaired
Cheers any help
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Old 25 March 2016, 04:36   #2
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Hi check the usual first, good power supply going to unit and all data connections good, do all the functions work ? sounds like the unit may be suffering from what I call the winter blue's, seems like over winter small issues emerge my VHF is suddenly intermitantly losing the GPS signal from my plotter, I expect damp and cold has caused an issue.

anyway enough of my issues, check all the usual and then if not working contemplate how old the unit is and cost of replacement versus cost of repair, it could be just some loose ribbon cable within the unit or maybe some dry joint somewhere within, or of course the screen could be shot, see what the cost would be from an electronics repair person to take a look, you may need to find a dealer who specialises in marine stuff. But like I said before wasting money think about age versus costs.
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Old 25 March 2016, 05:55   #3
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Could easily be the cold. If you can take it off to warm or warm it in place and it clears all may be good when the weather warms up. I'd definitely try some heat first
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Old 25 March 2016, 12:55   #4
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Cool will take it out and put into warm room for few days cheers
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Old 26 March 2016, 20:26   #5
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TFT lcd isn't sensitive to temperature (they should operate in anything between -15 to 45c) but they are notoriously bad at coping with unstable power supply, particularly check how your (-) connection is connected - is it directly to the battery or going via 100s of connection to other equipments and then to the battery?

Also, check if your fuse isn't damaged.

To test if you've damaged the unit, connect it via a fused wire to the battery directly when it's NOT being charged. Also, worth checking if your battery is being charged correctly by the engine as if the rectifier on the engine is faulty, the first sign of that is usually flickering in the lights and equipments when the engine is on.
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