Acer AT4220A AT4220A Service Guide - Page 51
Repeat these steps to detach the left inverter bracket and the left inverter board.
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22. Release the five screws securing the right inverter bracket and the inverter board. 23. Carefully disconnect the ten inverter backlight cables and the inverter board FFC. 24. Then detach the right inverter board. 25. Repeat these steps to detach the left inverter bracket and the left inverter board. 26. Release the screws marked in red then remove the right and the left LCD brackets. 27. Release the eight screws holding the LCD then you can remove the LCD. Chapter 2 45