Hi Mark,
I found your very useful. I have a TF700 and got the same symptom than you had. I didn't disconnect the power while replacing my broken digitizer by a new one. I guess this is why my touchscreen stoppped working since...
Would you know where is that micro fuse located exaclty? I have not been able to find it. My electronic knowledges are a bit rusty. I am looking for a little "F" (for fuse) somewhere on the digitizer or main board, but cannot find one.
Would remember where that forum you fond the answer is?
Also, my batterty is showing has empty when I power up the tablet, did you have the same symptom?
Thanks