FHP DV1400 - Manual (Page 176)

Removal and Replacement Procedures
Maintenance and Service Guide 5–63
4. Turn the top cover upside down with the front toward you.
✎
Steps 5 and 6 apply only to HP Pavilion dv1400 models. See
steps 7 and 8 in this section for information on removing the
system board on HP Compaq nx4820 and Compaq Presario
V2400 models.
5. Release the ZIF connector 1 to which the LED board cable is
connected and disconnect the cable 2 from the system board.
6. Remove the four silver PM2.0×5.0 screws 3 that secure the
system board to the top cover.
Disconnecting the LED Board Cable and Removing the System
Board Screws, HP Pavilion dv1400 models Only