The battery tab HAS to open more than 95° in order for the battery to come out. This will be the case for all the things we have to take out from under these kind of tabs, so I recommend dragging the laptop to the edge of the table and opening it all the way there. If you don't do this, you risk accidentally damaging the locking mechanism.
If the battery is swollen, it might take some force to pull out. If it's not, it will come out with little to no force. If the tab is missing, damaged or broken and/or you cannot take the battery out, God help you. (you can still continue through the disassembly, but it's strongly suggested that you find a way to take it out before proceeding)
Pull on the blue pull tab with very little force. The battery should come out with relative ease.
After taking the battery out, you can close the tab back up by slamming it into the chassi. I didn't because we are going to be talking the tab fully out later on anyway.
Right next to the battery compartment is this multi-compartment, which we have to open in order to take the disk drive out. To do so, locate the lock tab (highlighted in red)
Slide the lock tab to the direction the arrow is pointing in and the cover should pop out. All you have to do now is just open the cover
Take out that one screw with a JIS #0 screwdriver, and the grill the screw is holding.
The grill is caught by the edge farthest from the screw, and the tab can bend easily so I'd recommend taking Julio and prying up from where the screw was.
Remove those screws with a JIT #0 screwdriver, and lift the back plate off. Note that the backplate has an O-ring between the chassi and the plate that may or may not have disintegrated and act as a glue, so you will have to pry very hard on that back plate.
As always I have painted a dot near the screws of the same type.
Beware of the piece shown in the second image. There are four of these pieces, their locations are highlighted in the third image. They are essentially the hinge of the handle, and they like to come out when you least expect them and get lost. I recommend taking them out, and saving them individually. Trust me, you'll thank me.
Thake out those screws with a JIS #0 screwdriver, and remove the speaker cover.
Take the power slider out by lifting it off.
Don't be stupid like me and slide the power button back and forth. The thing quite literally exploded and I had to look everywhere for that spring. (I couldn't find the original one so I just took one from a pen, trimmed it to fit and went with it)
Now it's the time we've all been waiting for. It's time to... take the keyboard out. flip the laptop open the lid and put it back as far as it will go.
Take those screws out using a JIS #0 screwdriver.
Close the lid, turn the laptop so you are facing the back of it and take out the screws on the second and third photos using a JIS #1 screwdriver.
Open the lid back up, and use some tool to pry up there. It's held down by some weird clips Panasonic likes to use, you could just yank it out. Don't worry, the clips aren't going to break.
Lift the keyboard from where I'm lifting it, and pull it towards the front of the laptop.
Remove the four screws highlighted here with a JIS #0 screwdriver.
CAREFULLY unplug each ribbon by VERY CAREFULLY pulling the black piece of the connector forwards.
Always be very gentle with the ribbon plugs, they are really fragile, really easy to break and an absolute pain in the ass to replace or repair. (that is assuming you can even find the one that was used for it)
Close the lid, and flip the laptop upside down. Ok, now let the real nightmare begin. Disconnect all of the antennas first, I have highlighted them in red.
Lift off that piece of tape and unscrew that screw.
Grab the board from where I'm grabbing it and carefully lift it up and away.
You should be left with two things, the board, which is in my hand, and the other little thing which may have fell down or not. (I highlighted it in red)
Unscrew and remove the brackets as much as you can. Beware there's an antenna passing through the gray bracket, and the other cable has not been disconnected.
Be careful do not force it out, the foam on the heatsink underneath the copper has turned into glue over time. DO NOT BEND THE PIPE, IF YOU DO, YOU ARE ESSENTIALLY &&^&@@
I won't be taking the track pad, status lights or physical power button out since I see no non-destructive way to do it, and I don't feel like absolutely ruining mine. So I won't be guiding you through that process. But I'll tell you, roughly, how to do it. I DON'T RECOMMEND DOING IT IF YOU DON'T HAVE A SPARE ON HAND.
Start by disconnecting those ribbons and un-route them.
Then flip the laptop and open it. The thing highlighted in red is actually a giant sticker. Remove it.
After you do, find screws, take them out, grab pieces, take them out, it's just what we've been doing all this time.
If you managed to do it without any help whatsoever, congratulations, you are now a technician. (This is actually how technicians work most of the time)
Time to take the screen apart. Start by removing those screws.
Fun fact, I ended up stripping one screw, so I had to drill it out. Those were the slowest most painful 50 seconds of my life.
The screen is not glued together, but it has some kind of ancient O-ring that has welded itself between the two metal plates, so carefully pry the screen open.
It the last picture you can see the O-ring I'm talking about in the detached back plate.
And there you go, you are actually done, unless you want to un glue the digitizer from the screen, there's nothing else to take out. Congratulations if you made it this far. Here is a little video of all the pieces I have taken out of the laptop. (and you should have too)