Compaq Presario A900 Notebook PC
Maintenance and Service Guide
Copyright 2007 Hewlett-Packard Development Company, L.P. Intel, Celeron, and Core are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Microsoft, Windows, and Windows Vista are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. SD Logo is a trademark of its proprietor. 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. First Edition: December 2007 Document Part Number: 460150-001

Safety warning notice

WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air 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 rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC adapter comply with the user-accessible surface temperature limits defined by the International Standard for Safety of Information Technology Equipment (IEC 60950).

Table of contents

1 Product description 2 External component identification Display components..... 5 Top components..... 6 Buttons, lights, and speakers.... 6 Keys.... 8 Pointing devices.... 9 Front components.... 10 Right-side components... 10 Left-side components.... 11 Bottom components.... Illustrated parts catalog Serial number location... 13 Computer major components.... 14 Display assembly components.... 19 Plastics Kit..... 20 Mass storage devices.... 21 Miscellaneous parts.... 22 Sequential part number listing... Removal and replacement procedures Preliminary replacement requirements.... 27 Tools required.... 27 Service considerations... 27 Plastic parts... 27 Cables and connectors.... 28 Drive handling.... 28 Grounding guidelines.... 29 Electrostatic discharge damage... 29 Packaging and transporting guidelines.. 30 Workstation guidelines.. 30
Equipment guidelines... 31 Unknown user password... 32 Component replacement procedures... 33 Serial number.... 33 Computer feet.... 33 Battery.... 34 Camera module.... 35 Hard drive.... 37 Memory module.... 39 WLAN module.... 41 Optical drive.... 44 Switch cover and keyboard... 46 Display assembly.... 50 Top cover.... 55 USB board.... 57 Fan.... 58 Speaker assembly.... 59 System board.... 60 Power connector cable.... 63 RTC battery... 65 Digital media board... 67 Heat sink.... 69 Processor.... Setup Utility Starting the Setup Utility.... 73 Changing the language of the Setup Utility... 73 Navigating and selecting in the Setup Utility... 74 Displaying system information... 74 Restoring default settings in the Setup Utility... 74 Using advanced Setup Utility features.... 75 Closing the Setup Utility.... 75 Setup Utility menus..... Specifications Computer specifications.... 77 17.0-inch, WXGA display specifications... 78 Hard drive specifications.... 79 DVDRW and CD-RW SuperMulti Double-Layer Combo Drive specifications.. 80 DVDRW and CD-RW Combo Drive specifications... 81 System DMA specifications.... 82 System interrupt specifications.... 83 System I/O address specifications.... 84
System memory map specifications... Screw listing Phillips PM2.56.0 captive screw.... 88 Phillips Phillips Phillips Phillips Phillips PM3.04.0 PM2.04.0 PM2.59.0 PM2.55.0 PM2.57.0 screw screw screw screw screw............... 98
8 Backup and recovery Recovering system information.... 99 Creating recovery discs... 99 Backing up your information... 100 When to back up... 100 Backup suggestions... 100 Using system restore points... 101 When to create restore points... 101 Create a system restore point.. 101 Restore to a previous date and time... 101 Performing a recovery... 102 Recovering from the recovery discs... 102 Recovering from the partition on the hard drive.. Connector pin assignments Audio-out (headphone).... Audio-in (microphone).... External monitor.... RJ-11 (modem).... 104 105
RJ-45 (network).... 106 S-Video-out.... 107 Universal Serial Bus.... Power cord set requirements Requirements for all countries and regions... 109 Requirements for specific countries and regions... Recycling Battery..... 111 Display.... 111 Index.... 117

Component Battery bay Battery release latch Vents (3)
Function Holds the battery. Releases the battery from the battery bay. Enable airflow to cool internal components. NOTE: 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.

(4) (5)

Memory/WLAN module compartment Hard drive bay
Contains the memory module slots and the WLAN module slot. Holds the hard drive.
Illustrated parts catalog

Serial number location

When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer.
Computer major components
Chapter 3 Illustrated parts catalog
Description 17.0-inch, WXGA+BrightView display assembly (includes 3 WLAN antenna transceivers and cables, camera module and cable, microphones and cables, and logo)
Spare part number 462319-001
Refer to Display assembly components on page 19, for more display assembly component spare part information. (2) (3) Switch cover (includes wireless button board and cable, power button board and cable, and num lock LED board and cable) Keyboards (include keyboard cable) For use in Denmark, Finland, and Norway For use in France For use in French Canada For use in Germany For use in Italy For use in the Netherlands For use in Saudi Arabia For use in Spain For use in Turkey For use in the United Kingdom For use in the United States (4) (5) (6) (7) (8) Top cover (includes TouchPad and TouchPad cable and caps lock LED board and cable) Fan Speaker assembly (includes cables) USB board (includes USB board cable) System boards (include digital media card board and replacement thermal material) GM965 system board, for use only with computer models equipped with Intel Core 2 Duo processors GL960 system board, for use only with computer models equipped with Intel Core Duo and Intel Celeron M processors Plastics Kit (see Plastics Kit on page 20 for more Plastics Kit spare part information) (9a) (9b) (10) (11) Memory/WLAN module compartment cover Hard drive cover Digital media board Processors (include replacement thermal material) Intel Core 2 Duo T7250 2.00-GHz processor (800-MHz FSB, 2-MB L2 cache) Intel Core 2 Duo T7100 1.80-GHz processor (800-MHz FSB, 2-MB L2 cache) Intel Core Duo T5550 1.83-GHz processor (533-MHz FSB, 2-MB L2 cache) Intel Core Duo T5550 1.67-GHz processor (533-MHz FSB, 2-MB L2 cache) Intel Core Duo T2330 1.60-GHz processor (533-MHz FSB, 1-MB L2 cache) 456965-001 450586-001 458247-001 453195-001 457314-001 462402-001 462316-001 462317-001 462409-001 462383-DH1 462383-051 462383-121 462383-041 462383-061 462383-B31 462383-171 462383-071 462383-141 462383-031 462383-001 462401-001 462404-001 462581-001 462406-001 462399-001

Broadcom 802.11b/g WLAN modules: For use in Canada, the Cayman Islands, Guam, Puerto Rico, the U.S. Virgin Islands, and the United States For use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan, the Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, 441090-001 441090-002
Description Bosnia and Herzegovina, Botswana, Brazil, the British Virgin Islands, Brunei, Bulgaria, Burkina Faso, Burundi, Cameroon, Cape Verde, the Central African Republic, Chad, Chile, Colombia, Comoros, the Congo, Costa Rica, Croatia, Cyprus, the Czech Republic, Denmark, Djibouti, Dominica, the Dominican Republic, East Timor, Ecuador, Egypt, El Salvador, Equitorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, French Guiana, Gabon, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, the Grenadines, Guadeloupe, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Ireland, Israel, Italy, the Ivory Coast, Jamaica, Jordan, Kazakhstan, Kenya, Kiribati, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, the Maldives, Mali, Malta, the Marshall Islands, Martinique, Mauritania, Mauritius, Mexico, Micronesia, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru, Nepal, the Nether Antilles, the Netherlands, New Zealand, Nicaragua, Niger, Nigeria, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, the People's Republic of China, Peru, the Philippines, Poland, Portugal, the Republic of Moldova, Romania, Russia, Rwanda, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia and Montenegro, the Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, the Solomon Islands, Somalia, South Africa, South Korea, Spain, Sri Lanka, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Suriname, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, the United Arab Emirates, the United Kingdom, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zaire, Zambia, and Zimbabwe Intel 802.11b/g WLAN module for use in Thailand

451861-004

Memory modules (PC2-5300, 667-MHz, DDR2) 1024-MB 512-MB 462330-001 462329-001
Hard drives (include hard drive bracket and SATA connector) 160-GB, 5400-rpm 120-GB, 5400-rpm Hard Drive Hardware Kit (not illustrated, includes hard drive bracket and screws and hard drive SATA connector) 462333-001 462332-001 462331-001

Remove the battery: 1. 2. 3. Turn the computer upside down on a flat surface, with the battery bay toward you. Slide the battery release latch (1) to release the battery. Pivot the battery (2) away from the computer and remove it from the computer (3).
To insert the battery, insert the rear edge of the battery into the battery bay and rotate the battery downward until it is seated. The battery release latch automatically locks the battery into place.

Camera module

Description Camera module Spare part number 462580-001
Before removing the camera module, follow these steps: 1. 2. 3. 4. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery (see Battery on page 34).
Remove the camera module: 1. 2. 3. Turn the computer right-side up, with the front toward you. Open the computer as far as possible. Remove the four rubber screw covers (1) and the four Phillips PM2.57.0 screws (2) that secure the display bezel to the display assembly. The rubber screw covers are available in the Display Rubber Kit, spare part number 462397-001.
Flex the inside edge of the top edge (1) of the display bezel until the bezel disengages from the display enclosure. Flex the inside edges of the left and right upper corners (2) of the display bezel until the bezel disengages from the display enclosure.
Separate the display bezel top edge (3) from the display assembly to access the camera module.

7. 8. 9.

Remove the two Philllips PM2.03.0 screws (1) that secure the camera module to the display enclosure. Release the camera module (2) as far from the display enclosure as the camera module cable allows. Disconnect the camera module cable (3) from the camera module.
10. Remove the camera module and bracket. Reverse this procedure to install the camera module.

Hard drive

NOTE: All hard drive spare part kits include a hard drive bracket.
Spare part number 462333-001 462332-001 462331-001 Description 160-GB, 5400-rpm hard drive 120-GB, 5400-rpm hard drive Hard Drive Hardware Kit (includes hard drive bracket, hard drive bracket screws, and hard drive connector)
Before removing the hard drive, follow these steps: 1. 2. 3. 4. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery (see Battery on page 34).

Intel 802.11a/b/g WLAN modules: For use in Antigua and Barbuda, Argentina, Australia, the Bahamas, Barbados, Brunei, Canada, Chile, the Dominican Republic, Guam, Guatemala, Hong Kong, India, Indonesia, Malaysia, Mexico, New Zealand, Panama, Paraguay, Saudi Arabia, Taiwan, the United States, and Vietnam For use in Aruba, Austria, Azerbaijan, Bahrain, Belgium, Bermuda, Brazil, Bulgaria, the Cayman Islands, Colombia, Croatia, Cyprus, the Czech Republic, Denmark, Egypt, El Salvador, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Iceland, Ireland, Italy, Jordan, Latvia, Lebanon, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, the Netherlands, Norway, Oman, the Philippines, Poland, Portugal, Romania, Russia, Serbia and Montenegro, Singapore, Slovakia, Slovenia, South Africa, Spain, Sri Lanka, Sweden, Switzerland, Turkey, the United Kingdom, and Uzbekistan 451861-001
Description Atheros AR2425 802.11b/g WLAN modules: For use in Canada, the Cayman Islands, Guam Puerto Rico the U.S. Virgin Islands, and the United States For use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan, the Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, the British Virgin Islands, Brunei, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Cape Verde, the Central African Republic, Chad, Chile, Colombia, Comoros, Congo, Costa Rica, Croatia, Cyprus, the Czech Republic, Denmark, Djibouti, Dominica, the Dominican Republic, East Timor, Ecuador, Egypt, El Salvador, Equitorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, French Guiana, Gabon, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, the Grenadines, Guadeloupe, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, the Ivory Coast, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, the Maldives, Mali, Malta, the Marshall Islands, Martinique, Mauritania, Mauritius, Mexico, Micronesia, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru, Nepal, the Nether Antilles, the Netherlands, New Zealand, Nicaragua, Niger, Nigeria, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, the People's Republic of China, Peru, the Philippines, Poland, Portugal, Qatar, the Republic of Moldova, Romania, Russia, Rwanda, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia and Montenegro, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, the Solomon Islands, Somalia, South Africa, South Korea, Spain, Sri Lanka, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Suriname, Swaziland, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, the United Arab Emirates, the United Kingdom, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zaire, Zambia, and Zimbabwe

4. 5. 6.

Disconnect the caps lock LED board cable (1) from the system board. Release the ZIF connector to which the TouchPad cable (2) is connected, and then disconnect the TouchPad cable from the system board. Remove the Phillips PM2.59.0 screw (3) that secures the top cover to the base enclosure.
Lift the rear edge of the top cover (1), and then swing it up and forward until it rests at an angle.
Lift the top cover (2) straight up and remove it.
Reverse this procedure to install the top cover.

USB board

Description USB board (includes USB board cable) Spare part number 462406-001
Before removing the USB board, follow these steps: 1. 2. 3. 4. 5. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery (see Battery on page 34). Remove the following components: a. b. c. d. e. Hard drive (see Hard drive on page 37) Optical drive (see Optical drive on page 44) Switch cover and keyboard (see Switch cover and keyboard on page 46) Display assembly (see Display assembly on page 50) Top cover (see Top cover on page 55)
Remove the USB board: 1. 2. 3. Disconnect the USB board cable (1) from the system board. Remove the USB board cable from the clips (2) built into the base enclosure. Remove the Phillips PM2.55.0 screw (3) that secures the USB board to the base enclosure.
Remove the USB board (4).
Reverse this procedure to reassemble and install the USB board.
Description Fan Spare part number 462404-001
Before removing the fan, follow these steps: 1. 2. 3. 4. 5. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery (see Battery on page 34). Remove the following components: a. b. c. d. e. Hard drive (see Hard drive on page 37) Optical drive (see Optical drive on page 44) Switch cover and keyboard (see Switch cover and keyboard on page 46) Display assembly (see Display assembly on page 50) Top cover (see Top cover on page 55)
Remove the fan: 1. 2. Disconnect the fan cable (1) from the system board. Remove the Phillips PM2.59.0 screw (2) that secures the fan to the base enclosure.

When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: Memory modules (see Memory module on page 39) WLAN module (see WLAN module on page 41) Heat sink (see Heat sink on page 69) Processor (see Processor on page 71)
Remove the system board: 1. 2. Turn the computer upside down, with the front toward you Disconnect the power connector cable from the system board.
Turn the computer right-side up, with the front toward you.
Disconnect the USB board cable (1) and the speaker cable (2) from the system board.

5. 6. 7. 8.

Remove the Phillips PM2.59.0 screw (1) that secures the system board to the base enclosure. Flex the front edge (2) of the base enclosure outward until the audio connectors clear the openings in the base enclosure. Use the optical drive connector (3) to lift the right side of the system board (4) until it rests at an angle. Remove the system board (5) by sliding it up and to the right until it is clear of the base enclosure.
Reverse this procedure to install the system board.

Power connector cable

Description Power connector cable Spare part number 462403-001
Before removing the power connector cable, follow these steps: 1. 2. 3. 4. 5. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery (see Battery on page 34). Remove the following components: a. b. c. d. e. f. g. Hard drive (see Hard drive on page 37) Optical drive (see Optical drive on page 44) Switch cover and keyboard (see Switch cover and keyboard on page 46) Display assembly (see Display assembly on page 50) Top cover (see Top cover on page 55) Fan (see Fan on page 58) System board (see System board on page 60)
Remove the power connector cable: 1. 2. Remove the power connector (1) from the clip built into the base enclosure. Remove the power connector cable (2) from the clips and routing channel built into the base enclosure.
Remove the power connector cable (3).
Reverse this procedure to install the power connector cable.

RTC battery

NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared.
Description RTC battery Spare part number 449137-001

Remove the heat sink: 1. 2. Turn the system board upside down, with the audio connectors toward you. Loosen the four Phillips PM2.56.0 captive screws (1) that secure the heat sink to the system board.
Remove the heat sink (2) by lifting it straight up.
NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink (1) and (2), the processor (3), and graphics subsystem component (4) on the system board each time the heat sink is removed. Thermal material is included with all system board, heat sink, and processor spare part kits.
Reverse this procedure to install the heat sink.

Processor

NOTE: All processor spare part kits include replacement thermal material.
Spare part number Description Intel Core 2 Duo processors (800-MHz FSB, 2-MB L2 cache) T7250 2.00-GHz processor T7100 1.8-GHz processor Intel Core Duo processors (667-MHz FSB, 2-MB L2 cache) T5550 1.80-GHz processor T5450 1.67-GHz processor Intel Core Duo processors (533-MHz FSB, 1-MB L2 cache) T2330 1.66-GHz processor T2310 1.46-GHz processor Intel Celeron-M processors (533-MHz FSB, 1-MB L2 cache) 550 2.00-GHz processor 540 1.86-GHz processor 530 1.73-GHz processor 454322-001 454321-001 457315-001 457314-001 457313-001 458247-001 453195-001 456965-001 450586-001
Before removing the processor, follow these steps: 1. 2. 3. 4. 5. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery (see Battery on page 34). Remove the following components: a. b. c. d. e. f. g. h. Hard drive (see Hard drive on page 37) Optical drive (see Optical drive on page 44) Switch cover and keyboard (see Switch cover and keyboard on page 46) Display assembly (see Display assembly on page 50) Top cover (see Top cover on page 55) Fan (see Fan on page 58) Heat sink (see Heat sink on page 69) System board (see System board on page 60)
Remove the processor: 1. 2. 3. Turn the system board upside down, with the audio connectors toward you. Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn counterclockwise until you hear a click. Lift the processor (2) straight up and remove it. NOTE: When you install the processor, the gold triangle (3) on the processor must be aligned with the triangle (4) embossed on the processor slot.
Reverse this procedure to install the processor.

Setup Utility

WARNING! Only authorized technicians trained by HP must repair this equipment. All troubleshooting and repair procedures are detailed to allow repair at only the subassembly or module level. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or modify 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.

Phillips PM2.56.0 captive screw

Color Black

Quantity 8

Length 6.0 mm

Thread 2.5 mm

Head diameter 5.0 mm

Where used: (1) Two captive screws that secure the hard drive cover to the computer (2) Two captive screws that secure the memory/WLAN module drive cover to the computer

Chapter 7 Screw listing

Where used: Four captive screws that secure the heat sink to the system board

Phillips PM3.04.0 screw

Color Silver

Quantity 4

Length 4.0 mm

Thread 3.0 mm

Where used: 4 screws that secure the hard drive bracket to the hard drive

Phillips PM2.04.0 screw

Quantity 20

Thread 2.0 mm

Head diameter 4.5 mm
Where used: 2 screws that secure the camera module to the display enclosure
Where used: 2 screws that secure the WLAN module to the computer
Where used: 2 screws that secure the optical drive bracket to the optical drive
Where used: 3 screws that secure the keyboard to the computer
Where used: 8 screws that secure the display hinges to the display panel
Where used: 3 screws that secure the digital media board to the system board

Phillips PM2.59.0 screw

Quantity 27

Length 9.0 mm

Where used: (1) One screw that secures the optical drive to the computer (2) Four screws that secure the switch cover to the computer (3) One screw that secures the keyboard to the computer
Where used: 4 screws that secure the display assembly to the computer
Where used: 14 screws that secure the top cover to the base enclosure
Where used: One screw that secures the top cover to the base enclosure
Where used: (1) One screw that secures the fan to the base enclosure (2) One screw that secures the system board to the base enclosure

Phillips PM2.55.0 screw

Quantity 19

Length 5.0 mm

Where used: 6 screws that secure the switch cover to the computer
Where used: 8 screws that secure the display panel to the display enclosure
Where used: 2 screws that secure the top cover to the base enclosure
Where used: (1) One screw that secures the USB board to the base enclosure (2) Two screws that secure the speaker assembly to the base enclosure

Phillips PM2.57.0 screw

Length 7.0 mm
Where used: 8 screws that secure the display bezel to the display enclosure

Backup and recovery

102 Chapter 8 Backup and recovery
Connector pin assignments

Audio-out (headphone)

Signal Audio out, left channel Audio out, right channel Ground

Audio-in (microphone)

Signal Audio signal in Audio signal in Ground
Audio-out (headphone) 103

External monitor

Pin 15
Signal Red analog Green analog Blue analog Not connected Ground Ground analog Ground analog Ground analog +5 VDC Ground Monitor detect DDC 2B data Horizontal sync Vertical sync DDC 2B clock
104 Chapter 9 Connector pin assignments

RJ-11 (modem)

Pin 5 6
Signal Unused Tip Ring Unused Unused Unused

RJ-11 (modem) 105

RJ-45 (network)

Pin 7 8

Signal Transmit + Transmit Receive + Unused Unused Receive Unused Unused
106 Chapter 9 Connector pin assignments

S-Video-out

Signal S-VHS color (C) signal Composite video signal S-VHS intensity (Y) signal S-VHS color ground TV-CD S-VHS intensity ground Composite video ground

S-Video-out 107

Universal Serial Bus

Pin 3 4

Signal +5 VDC Data Data + Ground
108 Chapter 9 Connector pin assignments
10 Power cord set requirements
The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 volts AC or from 220 to 240 volts AC. The 3-conductor power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased. Power cord sets for use in other countries and regions must meet the requirements of the country or region where the computer is used.
Requirements for all countries and regions
The requirements listed below are applicable to all countries and regions: The length of the power cord set must be at least 1.5 m (5.0 ft) and no more than 2.0 m (6.5 ft). All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country or region where the power cord set will be used. The power cord sets must have a minimum current capacity of 10 amps and a nominal voltage rating of 125 or 250 V AC, as required by the power system of each country or region. The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC 320 Standard Sheet C13 connector for mating with the appliance inlet on the back of the computer.
Requirements for all countries and regions 109
Requirements for specific countries and regions
Country/region Australia Austria Belgium Canada Denmark Finland France Germany Italy Japan The Netherlands Norway The People's Republic of China South Korea Sweden Switzerland Taiwan The United Kingdom The United States 1. Accredited agency EANSW OVE CEBC CSA DEMKO FIMKO UTE VDE IMQ METI KEMA NEMKO CCC EK SEMKO SEV BSMI BSI UL Applicable note number 2

NOTE: The procedures provided in this appendix are general disassembly instructions. Specific details, such as screw sizes, quantities, and locations, and component shapes and sizes, can vary from one computer model to another.

Battery 111

Perform the following steps to disassemble the display assembly: 1. Remove all screw covers (1) and screws (2) that secure the display bezel to the display assembly.
Lift up and out on the left and right inside edges (1) and the top and bottom inside edges (2) of the display bezel until the bezel disengages from the display assembly. Remove the display bezel (3).

112 Chapter 11 Recycling

Disconnect all display panel cables (1) from the display inverter and remove the inverter (2).
Remove all screws (1) that secure the display panel assembly to the display enclosure. Remove the display panel assembly (2) from the display enclosure.
Turn the display panel assembly upside down. Remove all screws that secure the display panel frame to the display panel.
Use a sharp-edged tool to cut the tape (1) that secures the sides of the display panel to the display panel frame.

Display 113

10. Remove the display panel frame (2) from the display panel.
11. Remove the screws (1) that secure the backlight cover to the display panel. 12. Lift the top edge of the backlight cover (2) and swing it outward.
13. Remove the backlight cover. 14. Turn the display panel right-side up.

114 Chapter 11 Recycling

15. Remove the backlight cables (1) from the clip (2) in the display panel.
16. Turn the display panel upside down. 17. Remove the backlight frame from the display panel.
WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury.

Display 115

18. Remove the backlight from the backlight frame.
19. Disconnect the display cable (1) from the LCD panel. 20. Remove the screws (2) that secure the LCD panel to the display rear panel. 21. Release the LCD panel (3) from the display rear panel. 22. Release the tape (4) that secures the LCD panel to the display rear panel.

spare part numbers 18, 21, 25, 37 specifications 79 hard drive bay 12 hard drive bracket, removal 38 hard drive cover illustrated 20 removal 37 Hard Drive Hardware Kit, spare part number 18, 25, 37 hard drive self test 75 headphone jack location 10 pin assignments 103 heat sink removal 69 spare part number 16, 26, 69 hinge removal 53 spare part number 19, 53 horizontal scroll zone 9 I I/O address specifications 84 interrupt specifications 83 J jacks audio-in 10 audio-out 10 headphone 10 microphone 10 modem 11 network 11 RJ-RJ-S-Video-out jack 11 K keyboard product description 4 removal 46 spare part numbers 15, 25, 46 keypad keys 8 keys esc 8 fn 8 function 8 keypad 8
Windows applications 8 Windows logo 8 L language support 73, 76 left-side components 11 light components 6 lights battery 6 caps lock 6 drive 6 num lock 7 power 6 wireless 6 M main menu 76 mass storage devices, spare part numbers 21 memory map specifications 86 memory module product description 2 removal 39 spare part numbers 18, 25, 39 memory test 75 memory/WLAN module compartment 12 memory/WLAN module compartment cover illustrated 20 removal 39, 43 microphone locations 5 product description 3 removal 54 spare part number 19, 26, 54 microphone jack location 10 pin assignments 103 model name 1 modem jack location 11 pin assignments 105 modem module, product description 3 monitor port location 11 pin assignments 104
removal 58 spare part number 15, 26, 58 feet locations 33 spare part number 33 fingerprint reader 73 fn key 8 front components 10 function keys 8 G graphics, product description 2 grounding equipment and methods 31 H hard drive location 12 precautions 28 product description removal Index
N navigating in the Setup Utility network jack location 11 pin assignments 106 num lock light 7
O operating system, product description 4 optical drive location 10 precautions 28 product description 2 removal 44 spare part numbers 18, 21, 44 specifications 80, 81 Optical Drive Bezel/Bracket Kit, spare part number 18, 25, 44 optical drive light 10 P packing guidelines 30 password clearing 32 passwords 76 pin assignments audio-in jack 103 audio-out jack 103 external monitor port 104 headphone jack 103 microphone jack 103 modem jack 105 monitor port 104 network jack 106 RJ-RJ-45 jack 106 S-Video-out 107 Universal Serial Bus (USB) port 108 plastic parts 27 Plastics Kit contents 20 spare part number 15, 20, 26 pointing device components horizontal scroll zone 9 illustrated 9 product description 4 TouchPad 9
TouchPad buttons 9 TouchPad light 9 TouchPad on/off button 9 vertical scroll zone 9 ports external monitor 11 monitor 11 product description 3 Universal Serial Bus (USB) 10, 11 power button 7 power connector 11 power connector cable removal 63 spare part number 16, 26, 63 power cord set requirements 109 spare part numbers 22, 23 power light 6 power requirements, product description 4 power-on password 76 processor product description 1 removal 71 spare part numbers 15, 24, 71 processor C4 state 76 product description audio 3 chipset 1 diskette drive 3 display panel 2 docking support 3 Ethernet 3 external media cards 3 graphics 2 hard drives 2 keyboard 4 memory module 2 microphone 3 modem module 3 operating system 4 optical drives 2 pointing devices 4 ports 3 power requirements 4 processors 1 product name 1

security 4 serviceability 4 web camera 3 wireless 3 product name 1 R recovery discs 99 recovery, system 102 removal/replacement preliminaries 27 procedures 33 restore points 101 right-side components 10 RJ-11 jack location 11 pin assignments 105 RJ-45 jack location 11 pin assignments 106 RTC battery removal 65 spare part number 16, 24, 65 Rubber Foot Kit, spare part number 16, 26 S S-Video-out jack location 11 pin assignments 107 Screw Kit contents 87 spare part number 22, 26 screw listing 87 secondary hard drive self test 75 security cable slot 10 Security menu 76 security, product description 4 selecting in the Setup Utility 74 serial number 13, 33 service considerations 27 serviceability, product description 4 Setup Utility changing the language 73 Diagnostics menu 75 displaying system information 74 Main menu 76

Index 119

navigating 74 overview 73 Security menu 76 selecting 74 starting 73 System Configuration menu 76 using advanced features 75 speaker assembly removal 59 spare part number 15, 26, 59 speakers 6 specifications computer 77 display 78 DVDRW and CD-RW Combo Drive 80, 81 hard drive 79 I/O addresses 84 interrupts 83 memory map 86 optical drive 80, 81 system DMA 82 static-shielding materials 31 switch cover removal 46 spare part number 15, 26, 46 system board removal 60 spare part numbers 15, 25, 60 System Configuration menu 76 system DMA 82 system information 74, 76 system memory map 86 T thermal material, replacement 70 tools required 27 top components 6 top cover removal 55 spare part number 15, 26, 55 TouchPad 9 TouchPad buttons 9 TouchPad light 9 TouchPad on/off button 9 transporting guidelines 30
U Universal Serial Bus (USB) port location 10, 11 pin assignments 108 unknown password 32 USB board removal 57 spare part number 15, 26, 57 V vents 11, 12 vertical scroll zone 9 virtualization technology
W web camera product description 3 Windows applications key 8 Windows logo key 8 wireless antenna disconnecting 43 locations 5 Wireless Antenna Kit, spare part number 19, 26 wireless button 6 wireless light 6 wireless, product description 3 WLAN module removal 41 spare part numbers 16, 23, 24, 41 workstation guidelines 30