HP Presario A900 Compaq Presario A900 Notebook PC - Maintenance and Service Gu
HP Presario A900 - Notebook PC Manual
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- HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 1
Compaq Presario A900 Notebook PC Maintenance and Service Guide - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 2
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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 3
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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 4
iv Safety warning notice - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 5
Display components ...5 Top components ...6 Buttons, lights, and speakers 6 Keys ...8 Pointing devices ...9 Front components ...10 Right-side components ...10 27 Tools required ...27 Service considerations 27 Plastic parts 27 Cables and connectors 28 Drive handling 28 Grounding guidelines 29 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 6
...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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 7
103 Audio-in (microphone) ...103 External monitor ...104 RJ-11 (modem) ...105 RJ-45 (network) ...106 S-Video-out ...107 Universal Serial Bus ...108 10 Power cord set requirements Requirements for all countries and regions 109 Requirements for specific countries and regions 110 11 Recycling Battery - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 8
viii - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 9
Product description Category Product Name Processors Chipset Description Computers equipped with 965GM system board Computers equipped with 960GL system board Compaq Presario A900 Notebook PC √ √ Intel® Core™ 2 Duo processors: T7250 2.00-GHz processor, 800-MHz FSB, 2-MB √ L2 cache T5550 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 10
● 1024-MB total system memory (512 × 2, dualchannel) ● 512-MB total system memory (512 × 1, only on computer models equipped with Windows Vista Basic) Supports 9.5-mm, 2.5-inch hard drives √ √ Customer-accessible √ √ Serial ATA (SATA) √ √ Supports the following drives: ● 160-GB, 5400-rpm - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 11
and CD-RW Super Multi Double-Layer Combo Drive Supports external USB diskette drive only √ √ VGA camera, 30 frames per second √ √ Integrated omnidirectional mono microphone √ √ High-definition, Azalia technology audio √ √ 2 Presario-branded Altec/Lansing speakers √ √ 56K V.92 38.1-mm - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 12
cable plug support 6-cell, 2.20-Ah (47-Wh) Li-ion battery Security cable slot Preinstalled: Windows Vista Premium 32 Windows Vista Home Basic 32 End-user replaceable parts: AC adapter Battery (system) Hard drive Memory module Optical drive WLAN module Computers equipped with 965GM system board - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 13
, refer to the section of the Regulatory, Safety and Environmental Notices that applies to your country or region. These notices are located in Help and Support. Display components 5 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 14
off. Blinking: The hard drive or optical drive is being accessed. ● On: A battery is charging. ● Blinking: A battery that is the only available power source has reached a low battery level or a critical battery level. ● Off: If the computer is plugged into an external power source, the light is - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 15
briefly to exit Sleep. ● When the computer is in Hibernation, press the button briefly to exit Hibernation. If the computer has stopped responding and Windows® shutdown procedures are ineffective, press and hold the power button for at least 5 seconds to turn off the computer. To learn more about - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 16
Item (1) Component fn key (2) esc key (3) Function keys (4) Integrated numeric keypad keys (5) Windows applications key (6) Windows logo key Function Executes frequently used system functions when pressed in combination with a function key or the esc key. Displays system information - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 17
TouchPad light ● Blue: TouchPad is enabled. ● Amber: TouchPad is disabled. (2) TouchPad* Moves the pointer and selects or activates items on the screen. (3) TouchPad horizontal scroll zone Scrolls left or right. (4) Left TouchPad button* Functions like the left button on an external mouse - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 18
when connected to optional powered stereo speakers, headphones, ear buds, a headset, or television audio. Connects an optional computer discs and on select models also writes to optical discs. Blinking: The optical drive is being accessed. Attaches an optional security cable to the computer. NOTE: - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 19
(7) Digital Media Slot (8) USB port Function Connects an AC adapter. Enables 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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 20
latch Vents (3) (4) Memory/WLAN module compartment (5) Hard drive bay 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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 21
3 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. Serial number location 13 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 22
Computer major components 14 Chapter 3 Illustrated parts catalog - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 23
(see Plastics Kit on page 20 for more Plastics Kit spare part information) 462409-001 Memory/WLAN module compartment cover Hard drive cover Digital media board 462402-001 (11) Processors (include replacement thermal material) ● Intel Core 2 Duo T7250 2.00-GHz processor (800-MHz FSB, 2-MB L2 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 24
Item (12) (13) (14) (15) (16) (17) Description ● Intel Core Duo T2310 1.46-GHz processor (533-MHz FSB, 1-MB L2 cache) Spare part number 457313-001 454322-001 454321-001 457315-001 RTC battery 449137-001 Heat sink (includes replacement thermal material) 462405-001 Power connector cable 462403 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 25
Item Description Spare part number San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia and Montenegro, the Seychelles, Sierra Leone, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, 441090-001 441090-002 Computer major components 17 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 26
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 462330-001 512-MB 462329-001 Hard drives (include hard drive bracket and SATA connector) 160-GB, 5400-rpm 462333-001 120-GB, 5400-rpm 462332-001 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 27
Display assembly components Item Description Spare part number (1) Display bezel (includes Compaq logo, and camera lens) 462391-001 (2) Camera module 462580-001 (3) Display inverter 462579-001 (4) 17.0-inch, WXGA+BrightView display panel (includes display panel cable and backlight cable) - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 28
Plastics Kit Item Description Spare part number Plastics Kit: 462409-001 (1) Memory/WLAN module compartment cover (includes one captive screw, secured by a C-clip) (2) Hard drive cover (includes 2 captive screws, secured by C-clips) 20 Chapter 3 Illustrated parts catalog - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 29
±RW and CD-RW Super Multi Double-Layer Combo Drive with LightScribe DVD±RW and CD-RW Super Multi Double-Layer Combo Drive (2) Hard drives (include hard drive bracket and screws and SATA connector) 160-GB, 5400-rpm 120-GB, 5400-rpm Spare part number 462336-001 462335-001 462333-001 462332-001 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 30
Miscellaneous parts Description 65-W AC adapter Power cords: For use in Australia For use in Europe For screw ● Phillips PM2.5×6.0 captive screw ● Phillips PM2.5×5.0 screw ● Phillips PM2.0×4.0 screw Spare part number 417220-001 383496-011 383496-021 383496-D61 383496-061 383496-031 383496-001 462408 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 31
-001 Power cord for use in the United States 383496-011 Power cord for use in Australia 383496-021 Power cord for use in Europe 383496-031 Power cord for use in the United Kingdom 383496-061 Power cord for use in Italy 383496-D61 Power cord for use in India 417220-001 65-W AC adapter 441075 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 32
Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zaire, Zambia, and Zimbabwe 449137-001 RTC battery 450586-001 Intel Core 2 Duo T7100 1.80-GHz processor (800-MHz FSB, 2-MB L2 cache, , Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, 24 Chapter 3 Illustrated parts catalog - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 33
-001 17.0-inch, WXGA+BrightView display assembly (includes 3 WLAN antenna transceivers and cables, camera module and cable, microphones and cables, and logo) 462329-001 512-MB memory module (PC2-5300, 667-MHz, DDR2) 462330-001 1024-MB memory module (PC2-5300, 667-MHz, DDR2) 462331-001 Hard Drive - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 34
media board 462403-001 Power connector cable 462404-001 Fan 462405-001 Heat sink (includes replacement thermal material) 462406-001 USB board (includes USB board cable) 462408-001 Screw Kit 462409-001 Plastics Kit (see Plastics Kit on page 20 for more Plastics Kit spare part information) 462410 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 35
) away from the work area to prevent damage. Plastic parts Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions. Preliminary replacement requirements 27 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 36
parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. Drive handling CAUTION: Drives are drives from any height onto any surface. After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag. Avoid exposing a hard drive - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 37
determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions. A discharge of static electricity from a finger or other conductor can destroy static - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 38
parts and assemblies with conductive or approved containers or packaging. ● Keep ESD-sensitive parts in their containers until the parts ESD-sensitive parts from assemblies in ● Use conductive field service tools, such as cutters ● Handle ESD-sensitive components, parts, and assemblies by the case - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 39
resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times. On grounded mats with banana-plug connectors, use alligator clips cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 40
Unknown user password If the computer you are servicing has an unknown user password, follow these steps to 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. 4. Remove the battery (see Battery on page 34 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 41
7 different sizes, that must be removed, replaced, or loosened when servicing the computer. Make special note of each screw size and location during . Serial number Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 42
, 2.20-Ah (47-Wh) Li-ion battery Spare part number 462337-001 Before disassembling the computer, follow these steps: 1. Shut 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: 1. - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 43
power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery The rubber screw covers are available in the Display Rubber Kit, spare part number 462397-001. 4. Flex the inside edge of the top - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 44
6. Separate the display bezel top edge (3) from the display assembly to access the camera module. 7. Remove the two Philllips PM2.0×3.0 screws (1) that secure the camera module to the display enclosure. 8. Release the camera module (2) as far from the display enclosure as the camera module cable - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 45
devices connected to the computer. 3. 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. 4. Remove the battery (see Battery on page 34). Remove the hard drive: 1. Position the computer with the front - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 46
5. Remove the hard drive (3) from the hard drive bay. 6. If it is necessary to replace the hard drive bracket, remove the two Phillips PM3.0×4.0 hard drive bracket screws (1) from each side of the hard drive. 7. Lift the bracket (2) straight up to remove it from the hard drive. Reverse this - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 47
MHz, DDR2) Spare part number 462330-001 462329-001 Before removing the memory module, follow these power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). Remove the memory - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 48
4. Remove the memory module (2) by pulling the module away from the slot at an angle. NOTE: Memory modules are designed with a notch (3) to prevent incorrect installation into the memory module slot. Reverse this procedure to install a memory module. 40 Chapter 4 Removal and replacement procedures - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 49
WLAN module Description Spare part number Intel 802.11a/b/g/n WLAN modules: ● For use in use in Antigua and Barbuda, Argentina, Aruba, the Bahamas, Barbados, Bermuda, 441086-001 Brunei, Canada, the - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 50
Description Spare part number 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 459339-001 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 51
computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). Remove the WLAN module: 1. Loosen the two Phillips PM2.5×6.0 captive screws (1) that secure the memory/WLAN module compartment cover to - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 52
devices connected to the computer. 3. 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. 4. Remove the battery (see Battery on page 34). Remove the optical drive: 1. Position the computer with the left - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 53
If it is necessary to replace the optical drive bracket, position the optical drive with the rear toward you. 6. Remove the two Phillips PM2.0×4.0 screws (1) that secure the optical drive bracket to the optical drive. 7. Remove the optical drive bracket (2). Reverse this procedure to reassemble and - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 54
all external devices connected to the computer. 3. 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. 4. Remove the battery (see Battery on page 34). 46 Chapter 4 Removal and replacement procedures - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 55
Remove the following: (1) Four Phillips PM2.5×9.0 screws that secure the switch cover to the computer (2) One Phillips PM2.5×9.0 screw that secures the keyboard to the computer (3) Six Phillips PM2.5×5.0 screws that secure the switch cover to the computer 2. Turn the computer right-side up, with the - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 56
6. Remove the three Phillips PM2.0×4.0 screws that secure the keyboard to the computer. 7. Lift the rear edge of the keyboard (1) until it rests at angle. 8. Release the keyboard (2) by sliding it back until it rests on the switch cover and display bezel. 9. Release the zero insertion force (ZIF) - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 57
10. Remove the keyboard. 11. Release the ZIF connector (1) to which the LED board cable is attached, and then disconnect the LED board cable (2). 12. Remove the switch cover. Reverse this procedure to install the switch cover and keyboard. Component replacement procedures 49 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 58
Spare part number 17.0-inch, power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Disconnect the wireless antenna cables from the WLAN module (see WLAN module on page 41). 6. Remove the switch cover and keyboard - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 59
, remove the following: (1) Four rubber screw covers on the display bezel top edge. The rubber screw covers are included in the Rubber Kit, spare part number 462397-001. (2) Two rubber screw covers on the display bezel bottom corners. (3) Two rubber screw covers on the display bezel bottom edge - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 60
and the backlight cable (3) from the display inverter. 10. Remove the display inverter from the display enclosure. The display inverter is available using spare part number 462579-001. 11. If it is necessary to replace the display panel or hinges, remove the eight Phillips PM2.5×5.0 screws (1) that - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 61
secure the hinges to the display panel. 14. Remove the display hinges (2) from the display panel. The display hinges are available using spare part number 462392-001. 15. If it is necessary to replace the wireless antenna transceivers and cables, release the tabs (1) built into the display enclosure - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 62
16. Remove the wireless antenna transceivers (2) and cables (3) from the display enclosure. The wireless antennae are available using spare part number 462394-001. 17. If it is necessary to replace the microphone receiver and cable, release the tabs (1) built into the display enclosure that secure - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 63
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 64
. 5. Release the ZIF connector to which the TouchPad cable (2) is connected, and then disconnect the TouchPad cable from the system board. 6. Remove the Phillips PM2.5×9.0 screw (3) that secures the top cover to the base enclosure. 7. Lift the rear edge of the top cover (1), and then swing - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 65
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 66
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 67
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 68
it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. 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. 60 Chapter 4 Removal and replacement procedures - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 69
see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see Switch cover and keyboard on page 46) d. Display assembly (see Display assembly on page 50) e. Top cover (see Top cover on page 55) f. Fan (see Fan on page 58) When replacing the system board - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 70
front edge (2) of the base enclosure outward until the audio connectors clear the openings in the base enclosure. 7. Use the optical drive connector (3) to lift the right side of the system board (4) until it rests at an angle. 8. Remove the system board (5) by sliding it up and to the right until - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 71
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 72
3. Remove the power connector cable (3). Reverse this procedure to install the power connector cable. 64 Chapter 4 Removal and replacement procedures - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 73
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 74
2. Remove the RTC battery. Reverse this procedure to install the RTC battery. 66 Chapter 4 Removal and replacement procedures - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 75
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 76
3. Remove the digital media board (2) from the system board. Reverse this procedure to install the digital media board. 68 Chapter 4 Removal and replacement procedures - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 77
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 78
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. 70 Chapter 4 Removal - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 79
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Optical drive (see Optical drive on page 44) c. Switch cover and keyboard (see - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 80
Remove the processor: 1. Turn the system board upside down, with the audio connectors toward you. 2. Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn counterclockwise until you hear a click. 3. Lift the processor (2) straight - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 81
preference selected is displayed, press enter to save your preference. 5. To set your preferences and exit the Setup Utility, press f10 and then follow the instructions on the screen. Your preferences go into effect when the computer restarts in Windows. Starting the Setup Utility 73 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 82
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. ● exit the Setup Utility, press f10, and then follow the instructions on the screen. The Setup Utility default settings are set when you exit the - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 83
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. The " to - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 84
password Power-On Password System Configuration menu Select Language Support Boot ● View specification information about the processor, memory size, system BIOS, and keyboard controller version CD/DVD-ROM Drive ◦ Hard drive ◦ USB Diskette on Key ◦ USB Hard drive ◦ Network adapter Enable/disable the - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 85
6 Specifications Computer specifications Dimensions Length Width Height (front to rear) Weight Equipped with battery and optical drive Input power Operating voltage Operating current Temperature Operating (not writing to optical disc) Operating (writing to optical disc) Nonoperating Relative - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 86
well within this range of temperatures. 17.0-inch, WXGA display specifications Dimensions Height Width Diagonal Number of colors display Total power consumption Viewing angle Metric U.S. 24.4 cm 38.1 cm 43.2 cm Up to 16.8 million 200:1 (typical) 180 nits (typical) 9.6 in 15.0 in 17.0 in 0. - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 87
to 55°C (41°F to 131°F) *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly. NOTE: Certain restrictions and exclusions apply. Contact technical support for details. Hard drive specifications 79 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 88
DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate 24X CD-ROM 8X DVD 24X CD-R 16X CD-RW 8X DVD+R 4X DVD+RW 8X DVD-R 4X DVD-RW 2.4X DVD+R(9) 5X DVD-RAM Transfer mode Read: Write: CD-DA, CD+(E)G, CD - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 89
DVD±RW and CD-RW Combo Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate 24X CD- ), CD-R, CD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-RAM CD-R and CD-RW CD DVD < 110 ms < 130 ms 2 MB 3,600 KB/sec 3,600 KB/sec 3,600 KB/ - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 90
System DMA specifications Hardware DMA System function DMA0 Not applicable DMA1* Not applicable DMA2* Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5* Available for PC Card DMA6 Not assigned DMA7 Not assigned *PC Card controller can use DMA 1, 2, or 5. - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 91
timer Standard 101-/102-Key or Microsoft® Natural Keyboard IRQ2 Cascaded IRQ3 Intel 82801DB/DBM USB2 Enhanced Host Controller-24CD IRQ4 COM1 IRQ5* Conexant AC-Link Audio Intel 82801DB/DBM SMBus Controller-24C3 Data Fax Modem with SmartCP IRQ6 Diskette drive IRQ7* Parallel port IRQ8 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 92
System I/O address specifications I/O address (hex) 000 - 00F 010 - 01F 020 - 021 022 - 024 025 - 03F 02E configuration registers Unused 87334 "Super I/O" configuration for CPU Counter/timer registers Unused Keyboard controller Port B Unused Keyboard controller Unused NMI enable/RTC Unused DMA page - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 93
) Entertainment audio Unused Unused Unused Unused Unused Unused Reserved serial port Unused Infrared port Unused Unused Secondary diskette drive controller Parallel port (LPT1/default) Unused FM synthesizer-OPL3 Unused VGA Reserved (parallel port/no EPP support) VGA PC Card controller in CPU Unused - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 94
-00FFFFFF 04800000-07FFFFFF 04800000-07FFFFFF 08000000-080FFFFF 08200000-FFFEFFFF FFFF0000-FFFFFFFF System function Base memory Video memory Video BIOS Unused System BIOS Extended memory Super extended memory Unused Video memory (direct access) Unused System BIOS 86 Chapter 6 Specifications - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 95
7 Screw listing This section provides specification and reference information for the screws used in the computer. All screws listed in this section are available in the Screw Kit, spare part number 462408-001, and the Display Screw Kit, spare part number 462398-001. 87 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 96
PM2.5×6.0 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 88 Chapter 7 Screw listing - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 97
Where used: Four captive screws that secure the heat sink to the system board Phillips PM3.0×4.0 screw Color Silver Quantity 4 Length 4.0 mm Thread 3.0 mm Head diameter 5.0 mm Where used: 4 screws that secure the hard drive bracket to the hard drive Phillips PM3.0×4.0 screw 89 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 98
Phillips PM2.0×4.0 screw Color Black Quantity 20 Length 4.0 mm 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 90 Chapter 7 Screw listing - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 99
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 Phillips PM2.0×4.0 screw 91 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 100
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 92 Chapter 7 Screw listing - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 101
Color Black Quantity 27 Length 9.0 mm Thread 2.5 mm Head diameter 5.0 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 Phillips PM2.5×9.0 screw 93 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 102
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 94 Chapter 7 Screw listing - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 103
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 PM2.5×9.0 screw 95 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 104
Phillips PM2.5×5.0 screw Color Black Quantity 19 Length 5.0 mm Thread 2.5 mm Head diameter 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 96 Chapter 7 Screw listing - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 105
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 PM2.5×5.0 screw 97 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 106
Phillips PM2.5×7.0 screw Color Silver Quantity 8 Length 7.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: 8 screws that secure the display bezel to the display enclosure 98 Chapter 7 Screw listing - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 107
from a dedicated recovery partition on the hard drive or from recovery discs you create. Creating support reduce the number of discs required. NOTE: Read-write discs, such as CD-RW, DVD+RW, and DVD-RW, are not compatible with the Recovery Manager software. ● The computer must be connected to AC power - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 108
optical drive. ● battery power, you will be prompted to connect to AC power before you can go to the next step. 3. Click Recovery disc creation, and then click Next. 4. Follow the on-screen instructions ● Create system restore points using the Windows® System Restore feature, and periodically copy - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 109
restore point allows you to save and name a snapshot of your hard drive at a specific point in time. You can then recover back to that point if restore point. 5. Click Create. The System Protection window opens. 6. Follow the on-screen instructions. Restore to a previous date and time To revert - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 110
on the hard drive. NOTE: Windows has its own built-in repair features, such as System Restore and driver rollback drive and restart the computer. 3. Follow the on-screen instructions. Recovering from the partition on the hard drive You can perform a recovery from the partition on the hard drive - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 111
9 Connector pin assignments Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Audio-in (microphone) Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground Audio-out (headphone) 103 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 112
External monitor Pin Signal 1 Red analog 2 Green analog 3 Blue analog 4 Not connected 5 Ground 6 Ground analog 7 Ground analog 8 Ground analog 9 +5 VDC 10 Ground 11 Monitor detect 12 DDC 2B data 13 Horizontal sync 14 Vertical sync 15 DDC 2B clock 104 Chapter 9 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 113
RJ-11 (modem) Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused RJ-11 (modem) 105 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 114
RJ-45 (network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused 5 Unused 6 Receive - 7 Unused 8 Unused 106 Chapter 9 Connector pin assignments - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 115
S-Video-out Pin 1 2 3 4 5 6 7 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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 116
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground 108 Chapter 9 Connector pin assignments - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 117
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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 118
Requirements for specific countries and regions Country/region Accredited agency Applicable note number Australia be used. 5. The flexible cord must be Type VCTF, 3-conductor, 0.75-mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 119
battery in general household waste. Follow the local laws and regulations in your area for computer battery components. NOTE: Materials Disposal. This HP product contains mercury in the backlight in provided in this appendix are general disassembly instructions. Specific details, such as screw sizes, - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 120
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. 2. Lift up and out on the left - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 121
4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2). 5. Remove all screws (1) that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 122
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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 123
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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 124
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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 125
top 6 computer feet locations 33 spare part number 33 computer specifications 77 connectors power 11 service considerations 28 D Diagnostics menu 75 digital media board removal 67 spare part number 15, 26, 67 Digital Media Slot 11 diskette drive precautions 28 product description 3 display assembly - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 126
8 4 15, 25, 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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 127
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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 128
, 26, 59 speakers 6 specifications computer 77 display 78 DVD±RW 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 - HP Presario A900 | Compaq Presario A900 Notebook PC - Maintenance and Service Gu - Page 129
Compaq Presario A900 Notebook PC
Maintenance and Service Guide