COMPAQ C500, C300 User Manual

Maintenance and Service Guide

HP G3000 Notebook PC Compaq Presario C300 Notebook PC

Document Part Number: 435182-001

September 2006

This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts; troubleshooting computer problems; and performing computer disassembly procedures.

Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation. Intel, Celeron, and Core are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license.

The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

HP G3000 Notebook PC and Compaq Presario C300 Notebook PC Maintenance and Service Guide First Edition: September 2006 Document Part Number: 435182-001

1 Product Description

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2

1.2 Resetting the Computer. . . . . . . . . . . . . . . . . . . . . . . 1–4

1.3 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . 1–5

1.4 External Components . . . . . . . . . . . . . . . . . . . . . . . . 1–6

1.5 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–20

2Troubleshooting

2.1 Setup Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1

2.2 Using the Setup Utility . . . . . . . . . . . . . . . . . . . . . . . 2–2

2.3 Setup Utility Menus . . . . . . . . . . . . . . . . . . . . . . . . . 2–6

2.4 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . 2–9

Maintenance and Service Guide iii

Contents

3 Illustrated Parts Catalog

3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–1

3.2 Computer Major Components. . . . . . . . . . . . . . . . . . 3–2

3.3 Display Assembly Subcomponents. . . . . . . . . . . . . 3–14

3.4 Plastics Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–16

3.5 Cable Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–17

3.6 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3–18

3.7 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 3–20

3.8 Sequential Part Number Listing . . . . . . . . . . . . . . . 3–22

4 Removal and Replacement Preliminaries

4.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1

4.2 Service Considerations . . . . . . . . . . . . . . . . . . . . . . . 4–2

Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2

Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4–2

4.3 Preventing Damage to Removable Drives . . . . . . . . 4–3

4.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . 4–4

4.5 Packaging and Transporting Precautions . . . . . . . . . 4–5

4.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 4–6

4.7 Grounding Equipment and Methods . . . . . . . . . . . . . 4–7

iv Maintenance and Service Guide

5 Removal and Replacement Procedures

5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2

5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 5–3

5.3 Preparing the Computer for Disassembly . . . . . . . . . 5–5

5.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–7

5.5 Computer Feet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–10

5.6 Memory Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–11

5.7 Mini Card Module. . . . . . . . . . . . . . . . . . . . . . . . . . 5–14

5.8 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–17

5.9 Optical Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–18

5.10 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–21

5.11 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–23

5.12 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–26

5.13 Base Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–40

5.14 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–45

5.15 Display Release Button Assembly . . . . . . . . . . . . 5–53

5.16 LED Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–57

5.17 Fan/Heat Sink Assembly. . . . . . . . . . . . . . . . . . . . 5–59

5.18 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–65

Contents

Maintenance and Service Guide v

Contents

6 Specifications

A Screw Listing

B Backup and Recovery

C Display Component Recycling

D Connector Pin Assignments

E Power Cord Set Requirements

Index

vi Maintenance and Service Guide

Product Description

The HP G3000 Notebook PC and Compaq Presario C300 Notebook PC offer advanced modularity, Intel® Celeron® and Core™ Duo processors, and extensive multimedia support.

HP G3000 Notebook PC and Compaq Presario C300 Notebook PC

Maintenance and Service Guide 1–1

Product Description

1.1 Features

■ The following processors, varying by computer model:

❏ Intel Core Duo T2250 (1.73-GHz), T2300 (1.60-GHz),

or T2050 (1.60-GHz)

❏ Intel Celeron 430 (1.73-GHz) or Intel Celeron 420

(1.60-GHz)

■ 15.4-inch, WXGA, TFT (1280 × 800) display with antiglare

or BrightView, varying by computer model

■ 120-, 100-, 80-, or 60-GB high-capacity hard drive, varying

by computer model

■ 256-MB DDR1 synchronous DRAM (SDRAM) at 667 MHz

and 533 MHz, expandable to 2.0 GB

■ Windows® XP Home Edition or Windows XP Professional,

varying by computer model

■ Full-size Windows keyboard with embedded numeric keypad

■ TouchPad pointing device, including dedicated horizontal

and vertical scroll regions

■ Integrated 10Base-T/100Base-TX Ethernet local area

network (LAN) network interface card (NIC) with RJ-45 jack

■ Integrated high-speed 56K modem with RJ-11 jack

■ Integrated wireless support for Mini Card IEEE 802.11a/b/g

WLAN device

1–2 Maintenance and Service Guide

Product Description

■ External 65-watt AC adapter with 3-wire power cord

■ 6-cell Li-Ion battery

■ Stereo speakers

■ Volume up, volume mute, and volume down buttons

■ Support for the following optical drives:

❏ DVD±RW and CD-RW Super Multi Double-Layer

Combo Drive

❏ DVD/CD-RW Combo Drive

■ Connectors:

❏ Audio-in (microphone)

❏ Audio-out (headphone)

❏ External monitor

❏ Power

❏ RJ-11 (modem)

❏ RJ-45 (network)

❏ S-Video-out

❏ Universal Serial Bus (USB) v. 2.0 (2 ports)

Maintenance and Service Guide 1–3

Product Description

1.2 Resetting the Computer

If the computer you are servicing has an unknown password, follow these steps to clear the password. These steps also clear CMOS:

1. Prepare the computer for disassembly (refer to Section 5.3,

“Preparing the Computer for Disassembly,” for more

information.)

2. Remove the real-time clock (RTC) battery (refer to Section

5.8, “RTC Battery,” for more information.)

3. Wait approximately 5 minutes.

4. Replace the RTC battery and reassemble the computer.

5. Connect AC power to the computer. Do not reinsert any batteries at this time.

6. Turn on the computer.

All passwords and CMOS settings have been cleared.

1–4 Maintenance and Service Guide

1.3 Power Management

The computer comes with power management features that extend battery operating time and conserve power. The computer supports the following power management features:

■ Standby

■ Hibernation

■ Setting customization by the user

■ Hotkeys for setting the level of performance

■ Battery calibration

■ Lid switch standby/resume

■ Power button

■ Advanced Configuration and Power Management (ACPM)

compliance

Product Description

Maintenance and Service Guide 1–5

Product Description

1.4 External Components

The external components on the front of the computer are shown below and described in Table 1-1.

Front Components

1–6 Maintenance and Service Guide

Product Description

Tabl e 1 -1

Front Components

Item Component Function

1Power light ■ On: The computer is turned on.

■ Blinking: The computer is in standby.

■ Off: The computer is off or in hibernation.

2Battery light ■ On: A battery is charging.

■ Blinking: A battery that is the only

available power source has reached a low-battery condition. When the battery

critical

reaches a the battery light begins blinking quickly.

■ Off: If the computer is plugged into an external power source, the light is turned off when all batteries in the computer are fully charged. If the computer is not plugged into an external power source, the light stays off until the battery reaches a low-battery condition.

low-battery condition,

3 Drive light Blinks when the hard drive or optical drive is

being accessed.

4 Speakers Produce sound.

5 Display release button Opens the computer.

Maintenance and Service Guide 1–7

Product Description

The external components on the right side of the computer are shown below and described in Table 1-2.

Right-Side Components

1–8 Maintenance and Service Guide

Tabl e 1 -2

Right-Side Components

Item Component Function

Product Description

1Audio-out

(headphone) jack

2 Audio-in (microphone)

jack

3 Optical drive Reads an optical disc.

4 RJ-11 (modem) jack Connects a modem cable.

5 Power connector Connects an AC adapter cable.

Produces sound when connected to optional powered stereo speakers, headphones, ear buds, a headset, or television audio.

Connects an optional computer headset microphone, stereo array microphone, or monaural microphone.

Maintenance and Service Guide 1–9

Product Description

The external components on the left side of the computer are shown below and described in Table 1-3.

Left-Side Components

Table 1 -3

Left-Side Components

Item Component Function

1 Security cable slot Attaches an optional security cable to

the computer.

The security cable is designed to act

✎

as a deterrent, but it may not prevent the computer from being mishandled or stolen.

2 External monitor port Connects an external VGA monitor

or projector.

3 S-Video-out jack Connects an optional S-Video device such

as a television, VCR, camcorder, overhead projector, or video capture card.

4 RJ-45 (network) jack Connects a network cable.

5 USB ports (2) Connect optional USB devices.

1–10 Maintenance and Service Guide

The external components on the rear panel of the computer are shown below and described in Table 1-4.

Rear Panel Components

Table 1 -4

Rear Panel Components

Item Component Function

1 Battery bay Holds the battery.

Product Description

2 Vent Enable airflow to cool internal components.

To prevent overheating, do not

obstruct vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or thick rugs or clothing, to block airflow.

The computer fan starts up

✎

automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during routine operation.

Maintenance and Service Guide 1–11

Product Description

The standard keyboard components of the computer are shown below and described in Table 1-5.

Standard Keyboard Components

1–12 Maintenance and Service Guide

Product Description

Table 1-5

Standard Keyboard Components

Item Component Function

1 Function keys (12) Execute frequently used system functions

when pressed in combination with the fn key.

2 caps lock key Enables caps lock and turns on the

caps lock light.

3 fn key Executes frequently used system

functions when pressed in combination with a function key or the esc key.

4 Windows logo key Displays the Windows Start menu.

5Windows

applications key

6 Arrow keys Move the cursor around the screen.

7 Numeric keypad keys

(15)

8 num lock key Enables numeric lock, turns on the

Displays a shortcut menu for items beneath the pointer.

Can be used like the keys on an external numeric keypad.

embedded numeric keypad, and turns on the num lock light.

Maintenance and Service Guide 1–13

Product Description

The computer top components are shown below and described in Table 1-6.

Top Components

1–14 Maintenance and Service Guide

Product Description

Table 1-6

Top Components

Item Component Function

1 caps lock light On: Caps lock is enabled.

2 Wireless button Turns the wireless feature on or off, but

does not create a wireless connection.

To establish a wireless connection,

✎

a wireless network must already be set up.

3 Power button When the computer is

■ Off, press to turn on the computer.

■ On, press to enter hibernation.

■ In standby, briefly press to exit standby.

■ In hibernation, briefly press to

exit hibernation.

If the computer has stopped responding and Windows shutdown procedures cannot be used, press and hold the power button for at least 5 seconds to turn off the computer.

4 Volume down button Decreases speaker volume.

5 Volume up button Increases speaker volume.

6 Volume mute button Mutes and restores speaker volume.

7 num lock light On: Num lock is enabled.

Maintenance and Service Guide 1–15

Product Description

The computer TouchPad components are shown below and described in Table 1-7.

TouchPad Components

Table 1-7

TouchPad Components

Item Component Function

1 TouchPad Moves the pointer and selects or activates

items on the screen.

2 TouchPad horizontal

scroll zone

3 Left and right

TouchPad buttons

4 TouchPad vertical

scroll zone

1–16 Maintenance and Service Guide

Allows you to scroll left or right.

Function like the left and right buttons on an external mouse.

Allows you to scroll up or down.

Product Description

The external components on the bottom of the computer are shown below and described in Table 1-8.

Bottom Components

Table 1 - 8

Bottom Components

Item Component Function

1 Battery bay Holds the battery.

2 Battery release latch Releases a battery from the battery bay.

3 Labels area Contains the serial number and other

information labels.

4 Optical drive Reads an optical disc.

Maintenance and Service Guide 1–17

Product Description

Table 1 - 8

Bottom Components

Item Component Function

5 Vents (2) Enable airflow to cool

(Continued)

internal components.

To prevent overheating, do not

The computer fan starts up

automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during routine operation.

1–18 Maintenance and Service Guide

Table 1 - 8

Product Description

Bottom Components

Item Component Function

6 Memory/Mini Card module

compartment cover

7 Hard drive bay Holds the hard drive.

(Continued)

■ Contains 2 memory module slots that support replaceable memory modules. The number of preinstalled memory modules varies by computer model.

■ Holds an optional wireless LAN device (select models only).

To prevent an unresponsive

system and the display of a warning message, install only a Mini Card device authorized for use in your computer by the governmental agency that regulates wireless devices in your country. If you install an unauthorized device and then receive a warning message, remove the device to restore computer functionality. Then contact Customer Care.

Maintenance and Service Guide 1–19

Product Description

1.5 Design Overview

This section presents a design overview of key parts and features of the computer. Refer to Chapter 3, “Illustrated Parts Catalog,” to identify replacement parts, and Chapter 5, “Removal and

Replacement Procedures,” for disassembly steps.

The system board provides the following device connections:

■ Intel Core Duo and Celeron processors

■ Audio

■ Display

■ Hard drive

■ Keyboard

■ Memory module

■ Mini Card devices

■ To uc hP ad

CAUTION: To properly ventilate the computer, allow at least a 7.6-cm

(3-inch) clearance on the left and right sides and rear panel of the computer.

The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software. Exhaust air is displaced through the ventilation grill located on the computer rear panel.

1–20 Maintenance and Service Guide

WARNING: Only authorized technicians trained by HP should repair

this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly-/module-level repair. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or modifications to any printed wiring board. Improper repairs can create a safety hazard. Any indication of component replacement or printed wiring board modification may void any warranty or exchange allowances.

2.1 Setup Utility

The Setup Utility is a ROM-based information and customization utility that can be used even when your Windows operating system is not working or will not load.

The utility reports information about the computer and provides settings for startup, security, and other preferences.

1. Turn on or restart the computer in Windows.

Troubleshooting

2. Before Windows opens and while the “Press <F10> to enter setup” prompt is displayed in the lower-left corner of the screen, press

Maintenance and Service Guide 2–1

f10.

Troubleshooting

2.2 Using the Setup Utility

Changing the Language of the Setup Utility

The following procedure explains how to change the language of the Setup Utility. If the computer is not in the Setup Utility, begin at step 1. If the computer is in the Setup Utility, begin at step 2.

1. To open the Setup Utility, turn on or restart the computer in Windows, and then press to enter setup,” is displayed in the lower-left corner of the screen.

2. Use the arrow keys to select System Configuration > Language, and then press

f10 while the prompt, “Press <F10>

enter.

3. Press

f5 or f6 (or use the arrow keys) to select a language, and

then press

enter to select a language.

4. When a confirmation prompt with your preference selected is displayed, press

5. To set your preferences and exit the Setup Utility, press

enter to save your preference.

f10

and then follow the instructions on the screen.

Your preferences go into effect when the computer restarts in Windows.

2–2 Maintenance and Service Guide

Troubleshooting

Navigating and Selecting in the Setup Utility

Because the Setup Utility is not Windows-based, it does not support the TouchPad. Navigation and selection are by keystroke.

■ To choose a menu or a menu item, use the arrow keys.

■ To choose an item in a drop-down list or to toggle a field, for

example an Enable/Disable field, use either the arrow keys

f5 or f6.

■ To select an item, press enter.

■ To close a text box or return to the menu display, press f1.

■ To display additional navigation and selection information

while the Setup Utility is open, press

f1.

Displaying System Information

The following procedure explains how to display system information in the Setup Utility. If the Setup Utility is not open, begin at step 1. If the Setup Utility is open, begin at step 2.

1. To open the Setup Utility, turn on or restart the computer in Windows, and then press to enter setup,” is displayed in the lower-left corner of the screen.

f10 while the prompt, “Press <F10>

2. Access the system information by using the Main menu.

3. To close the Setup Utility without changing any settings, use the arrow keys to select Exit > Exit Discarding Changes, and then press

Maintenance and Service Guide 2–3

enter. (The computer restarts in Windows.)

Troubleshooting

Restoring Default Settings in the Setup Utility

The following procedure explains how to restore the Setup Utility default settings. If the computer is not in the Setup Utility, begin at step 1. If the computer is in the Setup Utility, begin at step 2.

1. To open the Setup Utility, turn on or restart the computer in Windows, and then press to enter setup,” is displayed in the lower-left corner of the screen.

f10 while the prompt, “Press <F10>

2. Select Exit > Load Setup Defaults, and then press

3. When the Setup Confirmation is displayed, press your preferences.

4. To set your preferences and exit the Setup Utility, press and then follow the instructions on the screen.

The Setup Utility default settings are set when you exit the Setup Utility and go into effect when the computer restarts.

Your password, security, and language settings are not changed

✎

when you restore the factory default settings.

enter to save

Using Advanced Setup Utility Features

This guide describes the Setup Utility features recommended for all users. For more information about the Setup Utility features recommended for advanced users only, refer to Help and Support, which is accessible only when the computer is in Windows.

The Setup Utility features available for advanced users include a hard drive self-test, a Network Service Boot, and settings for boot order preferences.

f10.

f10,

2–4 Maintenance and Service Guide

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