HP Compaq 420 Maintenance And Service Manual
Notebook pc
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- Maintenance and service manual (165 pages) ,
- Maintenance and service manual (160 pages)
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Summarization of Contents
Product Description
Processors
Details the various Intel processors supported by the notebooks.
Chipsets and Graphics
Specifies chipsets and describes integrated and discrete graphics options.
Memory and Storage Specifications
Outlines memory types and supported hard drive configurations.
Connectivity and Peripherals
Covers optical drives, audio, modem, Ethernet, wireless, and ports.
Input Devices and System Requirements
Describes keyboard, touchpad, power requirements, and operating systems.
External Component Identification
Top Components
Identifies and describes top-side components like touchpad, lights, buttons, and keys.
External Ports and Interfaces
Details front, side, and bottom ports, including USB, HDMI, audio, and network jacks.
Multimedia and Wireless Features
Covers webcam, microphone, speakers, and wireless antenna identification.
Additional Hardware Components
Shows identification of power cord, battery, and AC adapter.
Illustrated Parts Catalog
Service Tag and Major Components
Explains the service tag and lists major internal computer components with part numbers.
Display, Cables, and Plastic Parts
Details parts for the display assembly, cables, and plastic kits.
Storage and Miscellaneous Parts
Lists mass storage devices and miscellaneous items like adapters and screws.
Sequential Part Number Listing
Provides a comprehensive list of spare parts and their corresponding numbers.
Removal and Replacement Procedures
Preliminary Replacement Requirements
Outlines necessary tools, service considerations, and disassembly cautions.
Handling, Grounding, and Workstation Guidelines
Covers handling cables, drives, grounding, packaging, and workstation setup.
Component Replacement Procedures
Step-by-step instructions for removing and replacing major computer components.
Computer Setup
Computer Setup in Windows
Explains accessing and using the setup utility within Windows, including starting and restoring.
Computer Setup in Linux
Provides instructions for accessing and using setup utility in Linux, including starting and restoring.
Computer Setup Menus Overview
Details the File, Security, and System Configuration menus and their options.
Specifications
Computer Specifications
Provides dimensions, weight, input power, and temperature specifications.
Display Specifications by Size
Details display dimensions, resolution, brightness for 15.6", 14.0", and 13.3" screens.
Storage and Drive Specifications
Outlines specifications for hard drives and optical drives.
Backup and Recovery
Windows 7 Backup and Recovery
Guide to backing up data and recovering the system using Windows 7 tools.
Windows Vista Backup and Recovery
Instructions for backup and recovery procedures in Windows Vista.
Windows XP Backup and Recovery
Steps for backup and recovery operations within Windows XP.
Connector Pin Assignments
Audio and Monitor Ports
Pinouts for audio jacks and external monitor ports.
Communication and Data Ports
Pin assignments for HDMI, RJ-11, RJ-45, and USB ports.
Power Cord Set Requirements
Global Power Cord Requirements
General requirements for power cord sets applicable worldwide.
Country-Specific Power Cord Requirements
Lists country-specific requirements and certifications for power cords.
Recycling Information
Battery and Display Recycling
Guidelines for the proper disposal and recycling of batteries and display components.
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