Raymarine I40 depth display problem

Jaxg

.
Jun 30, 2019
20
Hunter 37 Cherubini Jacksonville
The unit has worked flawlessly until today. I powered it on as usual and the display no longer is back lit and the screen is full of everything that I guess it can possibly display, it won’t change any of the display, The button are Unresponsive. I plan to call the manufacture but was hoping someone would know something about this and give me some insight. Thank you.
 

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Feb 21, 2013
4,638
Hunter 46 Point Richmond, CA
............The unit has worked flawlessly until today. I powered it on as usual and the display no longer is back lit and the screen is full of everything that I guess it can possibly display, it won’t change any of the display, The button are Unresponsive.......... was hoping someone would know something about this and give me some insight.
Calling Raymarine is a good start. Check out these treads on troubleshooting and testing tips:

 
Jun 8, 2004
2,937
Catalina 320 Dana Point
I had an ST60 do something like that, turned out to be water inside, after disassembly and drying it worked fine on reboot. The case screws had been overtightened when built cracking the plastic and after 10 years enough had accumulated to short the circuit board.
 
Feb 20, 2011
8,059
Island Packet 35 Tucson, AZ/San Carlos, MX
I had an ST60 do something like that, turned out to be water inside, after disassembly and drying it worked fine on reboot. The case screws had been overtightened when built cracking the plastic and after 10 years enough had accumulated to short the circuit board.
In salt water? Wow, you got lucky!
 
Jun 8, 2004
2,937
Catalina 320 Dana Point
I think it was rainwater between navpod face and the case, which was cracked in the upper corner, didn't take much inside to reach the bottom of circuit board. I was pretty surprised when it worked after drying.