The tea doesn't sit there and cause a short, tea IS a short the second it hits the circuit board, assuming there was power from either the battery or power supply.
If you didn't do any of what I wrote previously, you motherboard is toast by now.
DON"T use any kind of alcohol, if you need to clean, use Distilled Water, it does not conduct electricity. When it's clean anyway, when you wipe something that is conductive, D.I. water also becomes conductive, just less so. But you should have had the battery's out, the power supply unplugged, and the CMOS battery out a long time ago.
If you haven't already taken it apart as I said before, then give up on it. Otherwise continue to follow what I already wrote.