HP (Hewlett-Packard) nx9420 ユーザーズマニュアル

1. Prepare the computer for disassembly (

2. Remove the switch cover (

3. Remove the four Torx8 T8M2.5×4.0 screws 1 and the 

Torx8 T8M2.5×19.0 screw 2 that secure the LED board to 
the computer.

4. Lift up on the LED board 3 between the volume decrease 

and volume increase buttons to disconnect the LED board 
from the system board.

5. Remove the LED board.

Reverse the above procedure to install the LED board.

LED board (includes LED board cable)

409957-001