Well, I finally did this yesterday. Many thanks to avidpaker for the instructions and Mr B for the photographs - they were invaluable. A couple of things I have to add after doing it:
1. While removing the main screen display cover, I noticed that mine actually had quite a lot of adhesive on the right hand side (to the right of the screen, left of the buttons). I had to slide a screwdriver between the plastic frame and the little metal screen surround it to remove the glue.
2. The UV11 is rather hard to disassemble if (like me) you don’t realise that underneath the little rubber feet are two small screws. Ahem.
3. The ribbon cable that was attached to the CCD on my UV11 wasn’t quite the same shape as the one attached to my original MotionEye CCD. The one on my MotionEye had a 90-degree turn in the cable, while the UV11 one didn’t. You have to make sure that the cable goes into the circuit board on the MotionEye the same way up as it did before - this means folding the cable in a rather awkward way and ensuring that the silver-side of the connectors on the end of the ribbon cable points up towards you, not down (as it did on the UV11). Hope that’s clear. If you do put the ribbon cable in the wrong way up, it won’t break it. Don’t ask me how I know that.
4. You don’t need to remove the MotionEye (or either of the circuit boards in it) from the TR. Once the front cover is off the screen, you can remove the lens cover from the MotionEye, undo the two screws and then remove the back cover while the device is still in the frame. If you then close the lid of the laptop, you can unscrew and remove the CCD without actually taking any of the other parts of the MotionEye out.
5. It might have been obvious to everyone else except me, but the clips that hold the ribbon cables in are the sort where you pull them out a little, lift them up and then the ribbon cable itself slides out. The black plastic parts aren’t attached to the ribbon cable.
It’s all working nicely now. I am not entirely sure that the new camera is better quality than the old one - I didn’t use the old one all that much, but I am fairly confident that this one is actually worse. Still, much better than nothing.
I hope I’ve cleared things up rather than making them more complicated,
Chris