Won't Turn On after Spilling Water on it

Last week I managed to spill water onto my Wacom Bamboo Tablet (CTH670) and now it refuses to turn back on.

The USB cord connecting it to my desktop is fine, but the water hit right around the port where I'd connect the cable in the tablet. I tried drying everything out and giving it a few days to see if it would come back to life, but every time I plug it in my computer says the device malfunctioned and can't register it; the light on the tablet won't come on and it's unresponsive.

I've tried calling some tech-y stores in the area, but all of them so far have said they don't fix these kind of tablets. I was going to try and send it to Wacom themselves to get it repaired, but the CTH670 isn't listed.

Does anybody know how I could repair my tablet? I'd really like to get it fixed rather than have to flat-out replace it. I've attempted taking some of it apart to dry out internal parts, but nothing that I couldn't open without a screwdriver since I'd rather not break it further.