I no longer have my C2200 but I recall changing tubes.
If I recall correctly, when all screws are removed the top is ready to come off. The top piece must be pushed or pulled towards the BACK of the unit. Kind of walk it back and forth as you move it towards the rear. The front that you think is secured is just inserted into a narrow channel to hide and give the finish look.
I do not recall any fasteners under or around the front.
The top is slide under the front extrusion when you replace it.
Dave
Check for screws also on the side? I cannot recall that area.
Dave
If I recall correctly, when all screws are removed the top is ready to come off. The top piece must be pushed or pulled towards the BACK of the unit. Kind of walk it back and forth as you move it towards the rear. The front that you think is secured is just inserted into a narrow channel to hide and give the finish look.
I do not recall any fasteners under or around the front.
The top is slide under the front extrusion when you replace it.
Dave
Check for screws also on the side? I cannot recall that area.
Dave