Apple LED Cinema Display 27" LED Panel Replacement

ID: 140309

Description: Identifying Features The Apple LED Cinema...

Steps:

1. Before beginning any work on your Mac: Unplug the computer and wait for 2 minutes in order for the power supply's capacitors to discharge.
2. Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply.
3. The all-in-one cable located underneath the power cable can NOT get disconnected from the rest of the enclosure.

4. Glass panel can be removed in various ways:
5. Lay the unit on its back and press clean suction cups in opposite corners on the glass panel, or...
6. Lay the unit on its back and press clean suction cups on top.
7. Lift the glass panel up and off.

8. First Steps Remove the glass panel as shown on step 2.
9. Upon disassembly, handle the LED panel only from the metal railings on either side and avoid touching the panel as much as possible.
10. Do not press on the front surface of the LED panel when handling, as this could cause the pixels from the panel to malfunction and/or stop working.

11. Remove the twelve, 10 mm Torx T10 screws around the border of the display frame.
12. Be sure not to overtighten the LED screws during reassembly, as it could cause light leakage after the unit is reassembled.

13. Use the black tabs to raise the bottom edge of the LCD a few inches to access the cables inside.
14. Tilt the display up no more than 4 inches (10 cm). Pulling the display too far could damage the cables or connectors.

15. Avoid coming in close contact or touching any components of the Power Supply.
16. Looking into the gap under the LCD, disconnect four (4) cables:
17. DisplayPort
18. Function
19. Ground pin
20. LED backlight driver
21. Verify that all cables are firmly seated into connectors during reassembly. An insecure cable connection can cause image flicker.

22. Peel back the mylar and foil tape on the DisplayPort cable on the back of the LED panel.
23. Squeeze the sides of connector and pull it out.
24. Make sure the 24 pin cable is correctly aligned with the LED panel upon reassembly.

25. Squeeze the sides of the function cable connector on the top left edge of the logic board and pull it straight out.
26. Make sure to align the function cable correctly with the logic board during reassembly.

27. Close-up of the ground cable at top left of logic board. Remove the 10 mm Torx T10 screw from top left corner of logic board.
28. Disconnect the ground cable.
29. Avoid touching the double pins on the top left corner of the logic board with a screwdriver.

30. Pinch the LED backlight driver cable on the underside of the center right edge of the logic board and pull straight out.
31. Avoid putting force on the logic board to bend as deformation of a logic board can cause issues.

32. Handle the LCD panel by the edges and lift it upwards until it separates from the rest of the enclosure.
33. This guide can be followed in reserve in order to perform an installation and reassembly of the LED panel to the rest of the enclosure.