I'm a twit!
I've replaced my collimating screws on my 8" Meade LX200 and tried to do a collimation afterwards. Now when I go completely out of focus, I no longer get the traditional round circle with smaller black circle in it, I get the black circle and a sort of cut-off circle around it.
Looks like the image attached.
Now I can't get focus, everything's blurry! I can get close to a good focus, but not the same as before I 'bob knobbed' my Meade.
Does anyone know what I have done wrong?

Do I need to send this somewhere to get serviced or is it completely stuffed?

If it can be fixed with a service, does anyone know if there's someone in Canberra as shipping it somewhere is not appealing.