HP EliteBook 820 G2 Notebook PC and HP EliteBook 720 G2 Notebook PC - Maintenance and Service Guide

Card reader board
Description Spare part number
Card reader board (includes cable) 781841-001
Before removing the card reader board, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 37), and then remove the following components:
a. Battery (see Battery on page 39)
b. Hard drive (see Hard drive/solid-state drive on page 41)
c. Keyboard (see Keyboard on page 50)
d. Top cover (see Top cover on page 57)
Remove the card reader board:
1. Turn the top cover upside down with the front toward you.
2. Release the ZIF connector (1) to which the card reader board cable is attached, and then disconnect the
card reader board cable (2) from the system board.
3. Turn the top cover upside down with the front toward you.
4. Release the ZIF connector (1) to which the TouchPad cable is attached, and then disconnect the
TouchPad cable from the card reader board.
5. Release the card reader board cable (2) through the opening in the top cover.
70 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts