HELP - I just fried a 7i76ED

htdave wrote: Looks like a couple of ICs have burn marks, but I'm not sure what they are. They apear to be labelled U24 and U19.

You could consider a component-level repair, though that relies on finding out what those ICs are. And you probably need a hot-air station to do the work. But those are surprisingly cheap. (£25, look for an 858D on eBay)

U19 and U24 don't exist on a vanilla 7i76 so I can't tell you what they are, but PCW might.

The repair can be done without a hot air station. A good hot iron a bit of solder, solder wick and some liquid flux is all you need.
I did it like that for years when I worked for Ingenico in Sydney and Melbourne.
PLCCs were easier with a square bit for the soldering iron.
It takes some skill but it’s quite doable.