Replacing a component on a circuit board and it would be much easier if I could remove one of the heatsinks.
Please look at the picture and advise, if you can.
It looks like the heatsink has a couple of round steel posts that go through the circuit board but I have no idea how to remove it. It looks like solder but I don't think it is.
You will see the 4 posts (2 for each heatsink) shown vertically in the picture.