Inside the first year I had to replace the whole motherboard of my A1200 after the mouseport failed.
I have a vague memory of a technician visiting the house and getting into the gubbinz.
That's why my Amiga has two warranty stickers on the base :-)
Come to think if it, I wonder if the original motherboard was different to the one I have now (it's a 1D-4)?
AndyC