I haven't looked at how to disassemble them, but if you can open it up and clean with alcohol there's always a chance. As others have posted, need to get all the salt out though. I'd get a few q tips and a small brush and go to town cleaning every area I could on the inside. Dose it with alcohol and then clean it again. Still not a guarantee, but worth a shot.
Here's a video of the TG-4, there might be one of the 6 out there;
Edit: I would not try turning it on until you've done that^^^
Here's a video of the TG-4, there might be one of the 6 out there;
Edit: I would not try turning it on until you've done that^^^