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4–42 Maintenance and Service Guide
Removal and replacement procedures
LED board
Before removing the LED board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on,
and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the battery (see “Battery” on page 6).
5. Remove the following components:
a. Hard drive (see “Hard drive” on page 8)
b. Optical drive (see “Optical drive” on page 19)
c. Keyboard (see “Keyboard” on page 21)
d. Switch cover (see “Switch cover” on page 25)
e. Speaker assembly (see “Speaker assembly” on page 27)
f. Display assembly (see “Display assembly” on page 28).
g. Top cover (see “Top cover” on page 37).
Remove the LED board and cable:
1. Disconnect the LED board cable 1 from the system board.
2. Remove the LED board cable from the clips 2 built into the base enclosure.
3. Remove the Phillips PM2.0×3.0 screw 3 that secures the LED board to the base enclosure.
4. Remove the LED board and cable 4.
Reverse this procedure to install the LED board.
Description Spare part number
LED board (includes cable) 531826-001