Introduction
This chapter is a step-by-step guide to removal and installation of the key components of the product. It may
be useful to check off the steps as they are performed. Use the illustrations for each procedure to identify the
parts referred to in the text.
Some of the procedures have a video available which can be downloaded. When a video is available the
following graphic is shown:
Click on the graphic to download the video. These videos and others, are also available from the Service
Substrate Library.
●
Employees and contingent workers:
http://thesml.hp.com
●
HP Channel partners, external call centers (requires registration):
http://h20181.www2.hp.com/plm
●
HP Customers:
http://www.hp.com/go/sml
NOTE: Before using this chapter to remove and install a new component, always make sure that you have
performed the relevant service test. If the test passes you will not need to replace the component.
Safety precautions
Review the instructions identified by WARNING and CAUTION symbols before servicing the product. Follow
these warnings and cautions for protection and to avoid damaging the product.
NOTE: Serious shock hazard leading to death or injury may result if you do not take the following
precautions:
●
Ensure that the AC power outlet (mains) has a protective earth (ground) terminal.
●
Switch the product off, and disconnect both power cords prior to performing any maintenance.
●
Prevent water or other liquids from running onto electrical components or circuits, or through openings
in the module.
Electrostatic Discharge (ESD) precautions
To prevent damage to the product's circuits from high-voltage electrostatic discharge (ESD):
1. Do not wear clothing that is subject to static build-up.
2. Do not handle integrated circuits (ICs) in carpeted areas.
3. Do not remove an IC or a printed circuit assembly (PCA) from its conductive foam pad or conductive
packaging until you are ready to install it.
4. Ground (earth) your body while disassembling and working on the product. 202 Chapter 6 Removal and
Installation ENWW.
5. After removing a cover from the product, attach an earthing (ground) lead between the PCA common
and earth ground. Touch all tools to earth ground to remove static charges before using them on the
product.
6. After removing any PCA from the product, place it on a conductive foam pad or into its conductive
packaging to prevent ESD damage to any ICs on the PCA.
Required tools
236 Chapter 8 Removal and installation ENWW
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