Component Replacement Procedures; Service Tag - HP PROBOOK 4520S Maintenance And Service Manual

Component replacement procedures

This section provides removal and replacement procedures.
There are many screws, in many different sizes, that must be removed, replaced, or loosened when
servicing the computer. Make special note of each screw size and location during removal and
replacement.

Service tag

When ordering parts or requesting information, provide the computer serial number and model
description provided on the service tag:
(1) Product name: This is the product name affixed to the front of the computer.
(2) Serial number (s/n): This is an alphanumeric identifier that is unique to each product.
(3) Part number/product number (p/n): This number provides specific information about the product's
hardware components. The part number helps a service technician to determine what components and
parts are needed.
(4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and
support for the computer.
(5) Warranty period: This number describes the duration of the warranty period for this computer.
Component replacement procedures
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