Cleaning up an Amiga 2000 circuit board

[TribbleSmasher]

First some wirecutter to snip that damn battery off.
Then rinse with some acidic water, like vinegar. Use soft toothbrush to clean the wider area while rinsing with warm water.
If the most green salt is gone put the mainboard into the dishwasher and give it a turn for half an hour at 30° C.

Donot test after this without proper drying.

[TribbleSmasher]

Well, don't put concentrated acid on it, just mildy sour vinegar to neutralise the battery affected area.
And of course use washing powder relative to the amount of filthyness of the board.😊
You could scrub it gently in the bathing tub if you like but the non-touching dish washer is the better option if you don't let the wife see it.

[TribbleSmasher]

Try and search on youtube for
"varta battery mainboard repair amiga 2000"
you will see what to look out for.

[TribbleSmasher]

Ok, so just to be absolutely sure, the vinegar is just for the area affected by the battery?

Yes. Look at the pictures in this blog
https://pointyboots.wordpress.com/2016/10/15/amiga-a2000-battery-damage-repair/
pretty much the whole area visible can show green salts, take a good look around, even at the keyboard socket and around the cpu.