Compaq Presario CQ57 Notebook PC - Maintenance and Service Guide

TouchPad button board
Description Spare part number
TouchPad button board (includes cable) 646130-001
Before removing the TouchPad button 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 40), and then remove the following components:
●
Optical drive (see
Optical drive (select models only) on page 41)
●
Keyboard (see
Keyboard on page 49)
●
Top cover (see
Top cover on page 52)
Remove the TouchPad button board and cable:
1. Turn the top cover upside down, with the top toward you.
2. Release the TouchPad board cable (1) and the TouchPad button board cable (2) from the
top cover. (The TouchPad board cable and the TouchPad button board cable are attached to the
top cover with double-sided tape.)
3. Remove the four Phillips PM2.0×4.0 screws (3) that secure the TouchPad button board to the
top cover.
4. Remove the TouchPad button board (4) and cables from the top cover.
Component replacement procedures 57