How do you remove a Sharp microwave/convection oven?

[Eric]

Looks like it's time to replace my heavily used Sharp over the stove
microwave/convection oven. I have never pulled one of these out of the anything
before. I don't know how it's held in place and I'd hate to take a crow bar to
it. I see the small channel that is in the lower rear that has two fasteners
that secure the bottom rear of the microwave.

Do I probably have to remove the narrow cabinet above the microwave to get
access to the front fasteners? I'd hate to start pulling cabinets apart if all
I have to do is press some sort of magic button somewhere. I doubt if this
matters but its a Sharp R-1830 microwave.

Any guidance would be appreciated.

Eric Perplies
96' PT-42
currently in Fredericksburg, TX