I've taken apart a lot of generic laptops, so it was fairly straightforward to do. Did end up finding a service manual (for the equivalent Newton model made by Sharp), but can't find it, will get back to here when I do.
Basically
- Remove all batteries - coin and AAA pack
- Remove all screws on back, including those behind the battery
- Don't forget to take off the piece of circular green tape on the top of the device, a tiny screw exists there
- Take off back shell
- Screws on the PCB are identified/marked with an "==>"; remove all of these.
- Clips also hold the PCB on the right hand side
- Gently pull out PCB, LCD ribbon cable needs to be disconnected outside. Remember where the speaker cables go when you put it back together!
- LCD slides out, one screw holds the bezel in.
Good luck!
JB