HP ZBook 15 G2 Mobile Workstation Maintenance and Service Guide

6 Removal and replacement procedures for
Authorized Service Provider parts
CAUTION: Components described in this chapter should only be accessed by an authorized service provider.
Accessing these parts can damage the computer or void the warranty.
Component replacement procedures
This chapter provides removal and replacement procedures for Authorized Service Provider only parts.
There are as many as 74 screws that must be removed, replaced, and/or loosened when servicing the
computer. Make special note of each screw size and location during removal and replacement.
RTC battery
Description Spare part number
RTC battery (includes cable and double-sided adhesive) 734300-001
Before removing the RTC battery, 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 battery (see Battery on page 37).
5. Remove the service cover (see Service cover on page 38).
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
56 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts