The biggest problem I see is that the water was saline, sea water. Nasty salts (electrolyte) in that mix, and the Sansa has hundreds of connections in a very small space. The processor has 200 pins in a 1 cm square, so a teeny droplet or salt deposit can wreak havoc depending upon where it is.
See how the device does, as you’ve been allowing it to dry for a few days. While the device operates, or charges, nominal heat dissipation helps dry out those last droplets, with the last bit being more like the “fog” you see on the bathroom mirror following a shower.
Looking at the PC board with a microscope, it’s harder to pinpoint corrosion, as with the new RoHS lead-free requirements, solder connections can appear “dull” when they’re fine. If everything else is working OK, it’s possible that there’s a problem in the FM section. At least the device isn’t dead as Julius Caesar.
Bob :smileyvery-happy:
