Unplug TV and lay face down preferably on a table with a blanket to protect the fragile glass screen

All TV's are slightly different but you want to undo all the screws. At the edge there are 12 screws for this model, two smaller screws in the middle by the scart connector and the four fine-threaded screws holding on the stand if present (if wall-mounted still undo the four screws where the stand would be.

Now the back can be lifted off as in the image. Remove mains cable (blue arrow) by pressing down the lever on the connector. Remove stand bracket (red arrow, 4 screws). Remove the long black speaker carrier module (green arrows) by removing 4 screws and unclipping 2 cables to the green printed circuit board and 1 to the infrared sensor

Undo the ribbon cable from the small circuit board, now exposed after removing the stand bracket. To do this lift the small bar with a thumb nail or similar and the ribbon cable can be easily removed.

Then detach this small circuit board from the metal chassis by removing two white plastic clips. These clips are sprung loaded into a hole so use a blunt knife or similar to squeeze the clips' shank and pull it out. Partially remove any tape securing the outer frame.

Turn the TV face up and remove the outer plastic frame from the unit by levering off lots of attached plastic clips with a blunt knife or similar. Best to start at a corner otherwise the frame has a horrible habit of re-clipping itself back on.

You can hold the TV edge-on if it helps, but when the outer frame is free the fragile glass panel (with attached small circuit board) is free to fall out, so be ready to catch it and put it safely to one side. If the TV is on its back, you can lift out the glass panel by hand. For larger TV's, you can use a suction pad to pull up the glass panel.