Are there any electronics on the keyboard PCB within the topcase?
A tiny bit of liquid entered the keyboard because (stupidly, I now know) I used a wet wipe to clean it. The wet wipe was, well, wet, not merely moist.
Luckily, I was wet-wiping the keyboard just after turning the computer off. Also luckily, I was then away from the machine and it remained off for several hours.
The logic board survived. I can now boot after pulling the keyboard's flat ribbon. I cannot boot with the keyboard ribbon connected (to the logic board).
What are the chances that the moisture still there will eventually evaporate and leave the keyboard functioning again? Are there chips on the keyboard printed circuit board that may have been damaged?
Is this a good question?