HP Compaq nx6125 - User Manual

Maintenance and Service
Guide
HP Compaq nx6115 and nx6125
Notebook PCs
Document Part Number: 389608-001
August 2005
This guide is a troubleshooting reference used for maintaining
and servicing the notebook. It provides comprehensive
information on identifying notebook features, components, and
spare parts; troubleshooting notebook problems; and performing
notebook disassembly procedures.

HP Compaq nx6125 Specifications

General

Brand	HP
Model	Compaq nx6125
Category	Laptop
Language	English

Summary

Product Description

1.1 Features

Lists available processors, displays, storage, memory, OS, and connectivity options.

1.2 Resetting the Notebook

Steps to clear passwords and CMOS by removing the RTC battery.

1.3 Power Management

Describes notebook power management features for battery life.

1.4 External Components

Identifies and describes external ports and indicators on the notebook's front, right, and left sides.

1.5 Design Overview

Overview of key parts and system board device connections.

Troubleshooting

2.1 Computer Setup

Explains the ROM-based utility for system configuration and navigation.

2.2 Troubleshooting Flowcharts

Overview of diagnostic flowcharts for various system issues.

Software Update and Recovery

3.1 Software Updates

Instructions for updating HP software and system ROM via HP website.

3.2 System Recovery

Outlines methods for recovering system functionality, including Altiris Local Recovery and System Restore.

Illustrated Parts Catalog

4.1 Serial Number Location

Shows where to find the notebook's serial and model numbers for service.

4.2 Notebook Major Components

Illustrated breakdown of major notebook parts with corresponding spare part numbers.

4.3 Miscellaneous Plastics Kit

Lists and illustrates plastic parts like covers, feet, and slot savers.

4.4 Miscellaneous Cable Kit

Lists and illustrates essential internal cables for various components.

4.5 Mass Storage Devices

Lists and illustrates hard drives and optical drives.

4.6 Miscellaneous (Not Illustrated)

Lists spare parts not shown in illustrations, including AC adapters and screws.

4.7 Sequential Part Number Listing

Cross-references spare part numbers with their descriptions for easy lookup.

Removal and Replacement Preliminaries

5.1 Tools Required

Lists specialized tools needed for notebook disassembly and reassembly.

5.2 Service Considerations

Discusses general precautions for handling plastic parts and cables during service.

5.3 Preventing Damage to Removable Drives

Provides precautions for handling fragile drives to prevent damage or data loss.

5.4 Preventing Electrostatic Damage

Explains the risks of ESD and how it affects electronic components.

5.5 Packaging and Transporting Precautions

Details grounding and packaging methods for ESD-sensitive equipment.

5.6 Workstation Precautions

Outlines grounding and work area guidelines for static-safe servicing.

5.7 Grounding Equipment and Methods

Describes proper grounding techniques using wrist straps, foot straps, and mats.

Removal and Replacement Procedures

6.1 Serial Number

Instructions on reporting the notebook serial number for service requests.

6.2 Disassembly Sequence Chart

Provides a step-by-step chart for component removal order.

6.3 Preparing the Notebook for Disassembly

Essential steps before starting component removal, including shutdown and battery removal.

6.4 Hard Drive

Detailed procedure for removing and replacing the hard drive.

6.5 Notebook Feet

Instructions for replacing adhesive-backed rubber notebook feet.

6.6 Bluetooth Board

Procedure for removing and replacing the Bluetooth wireless card.

6.7 Memory Module

Steps for accessing and replacing RAM modules.

6.8 Optical Drive

Procedure for removing and replacing the optical drive.

6.9 Switch Cover

Steps for removing and replacing the notebook's switch cover.

6.10 Power Button Board

Procedure for removing and replacing the power button board assembly.

6.11 Keyboard

Detailed steps for removing and replacing the notebook keyboard.

6.12 Fan

Instructions for removing and replacing the notebook cooling fan.

6.13 Heat Sink

Procedure for removing and replacing the processor heat sink.

6.14 Processor

Steps for removing and replacing the CPU.

6.15 Button Board

Procedure for removing and replacing the button board assembly.

6.16 Mini PCI Communications Card

Instructions for removing and replacing wireless or other Mini PCI cards.

6.17 Display Assembly

Detailed procedure for removing the entire display assembly.

6.18 Top Cover

Steps for removing and replacing the notebook's top cover.

6.19 TouchPad

Procedure for removing and replacing the TouchPad module.

6.20 RTC Battery

Instructions for removing and replacing the Real-Time Clock battery.

6.21 Speaker

Steps for removing and replacing the notebook speakers.

6.22 System Board

Detailed procedure for removing and replacing the main system board.

6.23 PC Card Assembly

Instructions for removing and replacing the PC Card slot assembly.

Specifications

Table 7-1 Notebook

Provides general specifications for notebook dimensions, weight, power, and environmental conditions.

Table 7-2 15.0-inch, SXGA+WVA, TFT Display

Specifies dimensions, resolution, and other characteristics of the SXGA+WVA display.

Table 7-3 15.0-inch, XGA, TFT Display

Specifies dimensions, resolution, and other characteristics of the XGA display.

Table 7-4 Hard Drives

Lists technical specifications for various hard drive capacities.

Table 7-5 Primary 6-cell, Li-Ion Battery Pack

Details specifications for the primary 6-cell Li-Ion battery.

Table 7-6 DVD-ROM Drive

Specifies technical details for the DVD-ROM drive.

Table 7-7 DVD;CD-RW Combo Drive

Specifies technical details for the DVD/CD-RW combo drive.

Table 7-8 DVD±RW and CD-RW Combo Drive

Specifies technical details for the DVD±RW and CD-RW combo drive.

Table 7-9 CD-ROM Drive

Specifies technical details for the CD-ROM drive.

Table 7-10 System DMA

Lists Direct Memory Access controller assignments.

Table 7-11 System Interrupts

Details hardware interrupt assignments for system functions.

Table 7-12 System I;O Addresses

Lists system input/output address mappings.

Table 7-13 System Memory Map

Provides a map of system memory addresses and their functions.

Connector Pin Assignments

Table A-1 Audio-Out (Headphone)

Pin assignments for the audio-out (headphone) jack.

Table A-2 Audio-In (Microphone)

Pin assignments for the audio-in (microphone) jack.

Table A-3 Universal Serial Bus

Pin assignments for USB ports.

Table A-4 S-Video-Out

Pin assignments for the S-Video-out connector.

Table A-5 External Monitor

Pin assignments for the external monitor connector.

Table A-6 RJ-11 (Modem)

Pin assignments for the RJ-11 modem jack.

Table A-7 RJ-45 (Network)

Pin assignments for the RJ-45 network jack.

Power Cord Set Requirements

3-Conductor Power Cord Set

Details requirements for 3-conductor power cords.

General Requirements

Lists general specifications applicable to power cord sets worldwide.

Country-Specific Requirements

Outlines country-specific agency approvals and notes for power cords.

Screw Listing

Table C-1 Phillips PM2.5×6.0 Screw

Details Phillips PM2.5x6.0 screws, quantity, and usage locations.

Table C-2 Phillips PM3.0×5.0 Screw

Details Phillips PM3.0x5.0 screws, quantity, and usage locations.

Table C-3 Phillips PM1.5×3.0 Screw

Details Phillips PM1.5x3.0 screws, quantity, and usage locations.

Table C-4 Torx T8 M2.5×9.0 Screw

Details Torx T8M2.5x9.0 screws, quantity, and usage locations.

Table C-5 Torx T8 M2.5×4.0 Screw

Details Torx T8M2.5x4.0 screws, quantity, and usage locations.

Table C-6 Torx T8 M2.5×7.0 Screw

Details Torx T8M2.5x7.0 screws, quantity, and usage locations.

Table C-7 Hex HM3.0×10.0 Screw Lock

Details Hex HM3.0x10.0 screw locks, quantity, and usage locations.

Table C-8 Phillips PM1.5×4.0 Screw

Details Phillips PM1.5x4.0 screws, quantity, and usage locations.

Display Component Recycling

Materials Disposal

Discusses mercury content and disposal guidelines for display components.