HP Presario CQ40-400 Compaq Presario CQ40 Notebook PC - Maintenance and Servic
HP Presario CQ40-400 - Notebook PC Manual
View all HP Presario CQ40-400 manuals
Add to My Manuals
Save this manual to your list of manuals |
HP Presario CQ40-400 manual content summary:
- HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 1
Compaq Presario CQ40 Notebook PC Maintenance and Service Guide - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 2
and other countries. Microsoft, Windows, and Windows Vista are U.S. registered trademarks of Microsoft Corporation. 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 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 3
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 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 4
iv Safety warning notice - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 5
part numbers catalog Service tag ...15 Computer major components ...16 Display assembly components ...20 Plastics Kit ...21 Mass storage devices ...22 Miscellaneous parts ...23 Sequential part number listing ...24 4 Removal and replacement procedures Preliminary replacement requirements 27 Tools - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 6
31 Component replacement procedures 32 Service tag ...32 Computer feet ...33 Battery ...34 Optical drive ...35 Hard drive ...36 WLAN module ...38 RTC battery ...40 Memory module ...42 Keyboard ...44 Keyboard cover ...46 Power button board ...48 Speaker assembly ...49 Display assembly ...51 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 7
14.1-in, WXGA BrightView display specifications 90 Hard drive specifications ...91 DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive specifications 92 Blu-ray ROM DVD±RW SuperMulti Double-Layer Drive specifications 93 System DMA specifications ...94 System interrupt specifications ...95 System - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 8
HDMI ...127 RJ-11 (modem) (select models only 128 RJ-45 (network) ...128 Universal Serial Bus ...129 10 Power cord set requirements Requirements for all countries or regions 130 Requirements for specific countries or regions 131 11 Recycling Battery ...132 Display ...132 Index ...138 viii - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 9
Chipset Graphics Panel Memory Description Compaq Presario CQ40 Notebook PC graphics nVIDIA N1OM-GE2-S with 512 MB of dedicated video memory 14.1-in, WXGA BrightView (1280 × 800) display panel 16:10 Wide Aspect Ratio 2 SODIMM slots Customer-accessible and upgradable Supports up to 4 GB of system RAM - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 10
drives Diskette drive Webcam Microphone Audio Modem Ethernet Wireless 2 Chapter 1 Product description Description Supports the following configurations: analog microphone High Definition (HD) audio Supports Windows Vista® Premium Logo requirements Presario-branded Altec Lansing speakers 56K MDC - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 11
, 47-Wh) 90-W AC adapter with localized cable support (Smart-Pin DC connector) Security cable slot Preinstalled: Windows Vista Home Basic (32 bit) Windows Vista Home Premium (32 bit) Windows Vista Business (32 bit) FreeDOS End-user replaceable parts: AC adapter Battery (system) Memory module Optical - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 12
(3) Left TouchPad button* (4) TouchPad light (5) TouchPad scroll zone* Enables/disables the TouchPad. Moves the pointer and selects or activates items on the screen. Functions like the left button on an external mouse. ● White: TouchPad is enabled. ● Amber: TouchPad is disabled. Scrolls up or down - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 13
device and/or a Bluetooth® device, is on. ● Amber: All wireless devices are off. On: Num lock is on or the embedded numeric keypad is enabled. ● 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 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 14
Description ● Blinking: The hard drive or optical drive is being accessed. ● On: HP ProtectSmart Hard Drive Protection has temporarily parked the internal hard drive. *The 2 power lights display the same information. The light on the power button is visible only when the computer is open. The - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 15
feature on or off but does not establish a wireless connection. NOTE: A wireless network must be set up in order to establish a wireless connection. *This table describes factory settings. For information about changing factory settings, refer to the user guides located in Help and Support - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 16
pressed in combination with the fn key. Executes frequently used system functions when pressed in combination with a function key or the esc key. Displays the Windows Start menu. Execute frequently used system functions when pressed in combination with the fn key. Can be used like the keys on an - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 17
may look slightly different from the illustration in this section. Component (1) Integrated webcam light (2) Integrated webcam (3) Internal microphone (4) Internal display switch Description On: The integrated webcam is in use. Records video and captures still photographs. Records sound. NOTE - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 18
, 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. 10 Chapter 2 External component identification - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 19
this section. Component (1) Power light (2) Battery light (3) Drive light (4) Audio-in (microphone) jack (5) Audio-out (headphone) jack power source, the light stays off until the battery reaches a low battery level. ● Blinking: The hard drive or optical drive is being accessed. ● On: HP - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 20
. Connects a network cable. Connects an optional video or audio device, such as a highdefinition television, or any compatible digital or audio component. Connects an optional USB device. On: A digital card is being accessed. Supports the following optional digital card formats: ● Memory Stick - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 21
(2) (4) RJ-11 (modem) jack (select models only) (5) Power connector Description Blinking: The optical drive is being accessed. Reads optical discs and, on select models, also writes to optical discs. Connect optional USB devices. Connects a modem cable. Connects an AC adapter. Rear component 13 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 22
regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support through Help and Support. Enable airflow to cool internal components. NOTE: The computer fan - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 23
This number provides specific information about the product's hardware components. The part number helps a service technician to determine what components and parts are needed. (4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and support for the device - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 24
Computer major components 16 Chapter 3 Illustrated part numbers catalog - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 25
) Keyboard South Korea Taiwan Thailand The United States Top cover USB board USB board cable (not illustrated) TouchPad Power connector cable (includes power connector and cable) TouchPad bracket TouchPad button board Audio board (includes audio connectors and audio board cable) Audio board cable - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 26
, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 27
16 GHz, 1-MB cache) ● T4200 (2.00 GHz, 1-MB cache) Bluetooth module Bluetooth module cable (not illustrated) Memory modules (PC2-6400, 800-MHz, DDR2) Hard Drive Hardware Kit (contains screws and hard drive bracket; not illustrated) Battery, 6-cell Li-Ion (2.2-Ah, 47-Wh) Spare part number 509549-001 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 28
(6) Microphone module and cable 517629-001 (7) Display enclosure 487284-001 Display cable (not illustrated) 486735-001 Display Screw Kit (not illustrated) 486730-001 Display Rubber Kit (not illustrated; includes rubber screw covers and LCD rubber pads) 487283-001 20 Chapter 3 Illustrated - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 29
Plastics Kit Item Description Plastics Kit (1) Hard drive cover (includes 2 screws) (2) Memory module compartment cover (includes 1 screw) (3) RTC battery compartment cover Spare part number 486862-001 Plastics Kit 21 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 30
Mass storage devices Item Description (1) Hard drive (includes hard drive bracket) ● 160 GB, 5400 rpm ● 250 GB, 5400 rpm ● 320 GB, 5400 rpm ● 500 GB, 5400 rpm Hard Drive Hardware Kit (contains screws and hard drive bracket; not illustrated) (2) Optical drive (includes bezel) ● DVD±RW and CD-RW - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 31
Miscellaneous parts Description 90-W PFC AC adapter Internal display switch module Power cord: Australia Brazil India North America South Korea Taiwan The People's Republic of China The United Kingdom and Singapore Screw Kit ● Phillips PM2.0×2.0 broadhead screws ● Phillips PM2.0×3.0 screws ● - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 32
Mylar shield and bracket) Display Hinge Kit (includes left and right display hinges and display switch module) 486835-001 486841-001 486842-001 486843-001 486844-001 486862-001 486863-001 RTC battery (includes two-sided tape) Audio board cable USB board USB board cable Fan Plastics Kit (see - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 33
494981-001 Description Screw Kit Keyboard cover (includes power button board and cable) Top cover Audio board (includes audio connectors and audio board cable) Base enclosure for use only in computer models without a modem module (includes wireless on/off switch) Internal display switch module Power - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 34
(2.06 GHz, 2-MB L2 cache) Microphone module and cable Heat sink (includes thermal material) System board (includes thermal material) 1024-MB memory module (PC2-6400, 800-MHz, DDR2) 2048-MB memory includes bezel) 6-cell Li-Ion battery (2.2-Ah, 47-Wh) 26 Chapter 3 Illustrated part numbers catalog - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 35
the work area to prevent damage. Plastic parts CAUTION: 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 CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 36
Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. Drive handling CAUTION: Drives are fragile - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 37
provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions. A discharge of ,500 V 5,000 V 26,500 V 20,000 V 21,000 V 11,000 V 55% 7,500 V 3,000 V 400 V 400 V 2,000 V 3,500 V 7,000 V 5,000 V Preliminary replacement requirements 29 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 38
work surface and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When fixtures must with pins, leads, or circuitry. ● Turn off power and input signals before inserting or removing connectors or test equipment. 30 Chapter 4 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 39
straps (heel, toe, or boot straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages replacement requirements 31 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 40
This number provides specific information about the product's hardware components. The part number helps a service technician to determine what components and parts are needed. (4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and support for the device - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 41
Computer feet The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, spare part number 486863-001. There are 6 rubber feet that attach to the base enclosure in the locations illustrated below. Component replacement procedures 33 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 42
. 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. Remove the battery: 1. Turn the computer upside down on a flat surface. 2. Slide the - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - 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 remove the optical drive (3). 5. If it is necessary to replace the optical drive bracket, position the optical drive with the optical - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 44
. 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). (1) that secure the hard drive to the computer. 36 Chapter 4 Removal and replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 45
the left until it disconnects from the connector, and then lift the hard drive up and out of the computer (4). 6. If it is necessary to replace the hard drive bracket, remove the four Phillips PM3.0×3.0 screws (1) that secure the hard drive bracket to the hard drive. 7. Lift the bracket (2) straight - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 46
, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Ivory Coast, Jamaica 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 replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 47
regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support through Help and Support. NOTE: WLAN modules are designed with a notch (4) to prevent incorrect - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 48
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 RTC battery: 1. Loosen the two Phillips PM2.5×5.0 captive - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 49
4. Remove the RTC battery (2). Reverse this procedure to install the RTC battery. Component replacement procedures 41 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 50
. 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 slot rises away from the computer.) 42 Chapter 4 Removal and replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 51
5. Remove the module (2) by pulling it away from the slot at an angle. NOTE: Memory modules are designed with a notch (3) to prevent incorrect insertion into the memory module slot. Reverse this procedure to install a memory module. Component replacement procedures 43 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 52
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). 5. Remove the RTC battery compartment cover. Remove the keyboard: 1. Remove the three Phillips PM2.5×18.0 screws that secure - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 53
are clear of the keyboard cover. 7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached and disconnect the keyboard cable (2) from the system board. 8. Remove the keyboard. Reverse this procedure to install the keyboard. Component replacement procedures 45 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 54
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. Optical drive (see Optical drive on page 35) b. Hard drive (see Hard drive on page 36) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 55
6. Release the ZIF connector to which the power button board cable (2) is connected and disconnect the cable from the system board. 7. Lift the front edge of the keyboard cover to disengage it from the computer, pull the keyboard cover toward the display until the light pipe on the front of the - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 56
button board: 1. Turn the keyboard cover display-side down. 2. Remove the Phillips PM2.5×3.0 screw (1) from the power button board. 3. Lift the power button board (2) up and away from the keyboard cover. Reverse this procedure to install the power button board. 48 Chapter 4 Removal and replacement - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 57
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. Optical drive (see Optical drive on page 35) b. Keyboard (see Keyboard on page 44) c. Keyboard cover (see Keyboard cover - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 58
4. Lift the speaker assembly (2) straight up to remove it from the computer. Reverse this procedure to install the speaker assembly. 50 Chapter 4 Removal and replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 59
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). 5. Disconnect the wireless antenna cables from - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 60
to support the display assembly can result in damage to the display assembly and other computer components. 7. Remove the four black Phillips PM2.5×6.0 screws (1) that secure the display assembly to the computer. 8. Remove the display assembly (2). 52 Chapter 4 Removal and replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 61
right sides (2), and the bottom (3) of the display bezel until the bezel disengages from the display enclosure. 11. Remove the display bezel (4). The display bezel is available using spare part number 487286-001. 12. If it is necessary to replace the inverter, release the inverter (1) from the clips - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 62
. Remove the inverter. 15. If it is necessary to replace the display panel, remove the six black Phillips PM2.5×5.0 screws (1) that secure the display panel to the display enclosure, and then lift the panel from the enclosure (2). The display panel is available using the spare part number 487279-001 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 63
part number 486735-001. 17. If it is necessary to replace the display hinges, remove the four silver Phillips PM2.0×3.0 screws (1) that secure each hinge to the display. 18. Remove the display hinges (2) from the display. The display hinges are available using spare part number 486737-001. 19. If - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 64
22. Remove the wireless antenna transceivers and cables (4) from the display enclosure. Reverse this procedure to reassemble and install the display assembly. 56 Chapter 4 Removal and replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - 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. Optical drive (see Optical drive on page 35) b. Keyboard (see Keyboard on page 44) c. Keyboard cover (see Keyboard cover - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - 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. Optical drive (see Optical drive on page 35) b. Keyboard (see Keyboard on page 44) c. Keyboard cover (see Keyboard cover - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - 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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 68
3. Turn the computer right-side up, with the front toward you. 4. Disconnect the following cables from the system board: ● Bluetooth module cable (1) ● TouchPad cable (2) with zero insertion force (ZIF) connector 5. Remove the two Phillips PM2.5×6.0 screws (1) that secure the top cover to the - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 69
7. Remove the top cover (3). Reverse this procedure to install the top cover. Component replacement procedures 61 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 70
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 71
5. Remove the TouchPad button board (5) from the TouchPad bracket. Reverse this procedure to reassemble and install the TouchPad button board. Component replacement procedures 63 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 72
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 73
5. Remove the Bluetooth module (5) from the top cover. Reverse this procedure to install the Bluetooth module. Component replacement procedures 65 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 74
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 75
4. Lift up on the front of the modem module (3) to disconnect it from the system board. 5. Remove the modem module. Reverse this procedure to install the modem module. NOTE: When replacing the modem module, be sure that the connector on the bottom of the modem module connects firmly into the system - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 76
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 77
6. Remove the audio board (4). Reverse this procedure to install the audio board. Component replacement procedures 69 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 78
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 79
5. Lift the USB board (4) straight up to remove it from the computer. Reverse this procedure to install the USB board. Component replacement procedures 71 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 80
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 81
4. Remove the cable from the base enclosure clips (3). Reverse this procedure to install the power connector cable. Component replacement procedures 73 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 82
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 83
● (4) USB board cable (see USB board on page 70) 3. Disconnect the power connector cable. 4. Remove the two black Phillips PM2.5×5.0 screws that secure the system board to the computer. 5. Lift the right side of the system board (1) until it rests at an angle (2). Component replacement procedures 75 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 84
sliding it to the right at an angle (3) until the connectors on the left side of the system board disengage from the base enclosure, and then remove the system board. 7. If it is necessary to replace the modem module cable, remove the RJ-11 connector (1) from the clip built into the base enclosure - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 85
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 86
before the heat sink is reinstalled. Thermal pads must be placed in all of the following locations on the heat sink: the four specifically marked areas (3), the nVIDIA video chip (4), the Northbridge chip (5), and the capacitors (6). Reverse this procedure to install the heat sink. 78 Chapter - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 87
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 88
with the triangle icon (4) embossed on the processor socket when you install the processor. Reverse this procedure to install the processor. 80 Chapter 4 Removal and replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 89
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 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 90
3. Lift the fan from the base enclosure (2). Reverse this procedure to install the fan. 82 Chapter 4 Removal and replacement procedures - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 91
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 ESC key for Startup Menu" message is displayed in the lower-left corner of the screen, press f10. - or - 1. - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 92
the "Press the ESC key for Startup Menu" message is displayed in the lower-left corner of the screen, press f10. - or - Open the Setup Utility by 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 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 93
2. 1. Open the Setup Utility by turning on or restarting the computer. While the "Press the ESC key for Startup Menu" message is displayed in the lower-left corner of the screen, press f10. - or - Open the Setup Utility by turning on or restarting the computer. While the "Press the ESC key for - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 94
If the Setup Utility menus are not visible, press esc to return to the menu display. Then use the arrow keys to select Exit > Exit Saving Changes, and then menus are not visible, press esc to return to the menu display. Then use the arrow keys to select Exit > Exit Discarding Changes, and then - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 95
and date. ● View identification information about the computer. ● View specification information about the processor, memory size, system BIOS, and keyboard controller version (select models only). Security menu Select Administrator password Power-On Password To do this Enter, change, or delete an - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 96
To do this ◦ USB Floppy ◦ Internal CD/DVD ROM drive ◦ USB CD/DVD ROM drive ◦ Hard drive ◦ USB Diskette on Key ◦ USB Hard drive ◦ Network adapter Diagnostics menu Select Hard Disk Self Test Secondary Hard Disk Self Test (select models only) Memory Test To do this Run a comprehensive self-test on - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 97
6 Specifications Computer specifications Metric U.S. Dimensions Height (front to back) 3.33 to 3.97 cm 1.31 to 1.56 in Width 33.40 cm Depth 23.70 cm Weight (with optical drive, hard drive, panel, battery, 2.30 kg and 1 DIMM) Input power 13.15 in 9.33 in 5.07 lb Operating voltage - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 98
14.1-in, WXGA BrightView display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle Metric U.S. 30.37 cm 18.98 cm 35.82 cm More than 262,144 More - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 99
Hard drive specifications 500 GB* 320 GB* 250 GB* 160 GB* Dimensions Height 9.5 mm 9.5 mm 9.5 Operating temperature 5°C to 55°C (41°F to 131°F) NOTE: Certain restrictions and exclusions apply. Consult technical support for details. 3 ms 13 ms 24 ms 312,581,808 *1 GB = 1 billion bytes when - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 100
-R and CD-RW DVD+R, DVD+RW, DVD-R, DVD-RW, DVD-RAM CD DVD < 175 ms < 230 ms 2 MB 3,600 KB/sec 10,800 KB/sec 3,600 KB/sec 2,400 KB/sec 10,800 KB/sec 5,400 KB/sec 10,800 KB/sec 5,400 KB/sec 2,700 KB/sec 6,750 KB/sec MultiWord DMA Mode - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 101
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 10,800 KB/sec 3,600 KB/sec 2,400 KB/sec 10,800 KB/sec 5,400 KB/sec 10,800 KB/sec 5,400 KB/sec 2,700 KB/sec 6,750 KB/ - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 102
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 NOTE: The Compaq Presario CQ40 does not include a PC card. 94 Chapter 6 Specifications - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 103
LCD Numeric data processor Intel (ICH9 Family) USB Universal Host Controller-2937 Intel (ICH9 Family) PCI Express Port 1-2940 Intel (ICH9 Family) PCI Express Port 5-2948 Mobile Intel 4 Series ) USB Universal Host Controller-2935 High-definition audio controller System interrupt specifications 95 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 104
-/102-Key or Microsoft Natural Keyboard Motherboard resources Microsoft ACPI-Compliant Embedded Controller Motherboard resources Motherboard resources System CMOS/real time clock Motherboard resources Direct memory access controller Motherboard resources Direct memory access controller Programmable - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 105
controller Programmable interrupt controller Direct memory access controller Numeric data processor Motherboard resources Mobile Intel 4 Series Express Chipset PCI Express Port 1-2A41 nVIDIA GeForce G 103M Mobile Intel 4 Series Express Chipset PCI Express Port 1-2A41 nVIDIA GeForce G 103M PCI - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 106
-000BFFFF 000C0000-000CFFFF 000E8000-00FFFFFF 01000000-XFFFFFFF 64 KB (X+1)00000000-FEDFFFFF FFFF0000-FFFFFFFF System function Base memory Video memory Video BIOS System BIOS Extended memory (based on memory installed) PCI bus and motherboard resources System BIOS 98 Chapter 6 Specifications - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 107
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 487298-001) and the Display Screw Kit (spare part number 486730-001). 99 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 108
Phillips PM2.0×2.0 broadhead screw Color Black Quantity 1 Length 2.0 mm Thread 2.0 mm Head diameter 7.0 mm Where used: One broadhead screw that secures the keyboard cover to the base enclosure. 100 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 109
Phillips PM2.0×3.0 screw (black) Color Black Quantity 6 Length 3.0 mm Thread 2.0 mm Head diameter 4.6 mm Where used: 4 screws that secure the keyboard cover to the base enclosure. Where used: 2 screws that secure the top cover to the base enclosure. Phillips PM2.0×3.0 screw (black) 101 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 110
PM2.0×3.0 screw (silver) Color Silver Quantity 10 Length 3.0 mm Thread 2.0 mm Head diameter 4.6 mm Where used: 8 screws that secure the display panel hinges and brackets to the display panel. Where used: 2 screws that secure the Bluetooth module to the top cover. 102 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 111
Phillips PM2.0×4.0 screw Color Black Quantity 7 Length 4.0 mm Thread 2.0 mm Head diameter 4.6 mm Where used: 2 screws that secure the WLAN module to the base enclosure. Where used: 2 screws that secure the modem module (select models only) to the system board. Phillips PM2.0×4.0 screw 103 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 112
Where used: 3 screws that secure the hard drive to the base enclosure. 104 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 113
Phillips PM2.0×10.0 captive screw Color Black Quantity 4 Length 10.0 mm Thread 2.0 mm Head diameter 5.0 mm Where used: 4 captive screws (secured by C-clips) that secure the heat sink to the system board. Phillips PM2.0×10.0 captive screw 105 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 114
Phillips PM2.5×3.0 screw Color Black Quantity 11 Length 3.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: One screw that secures the power button board to the keyboard cover. Where used: 2 screws that secure the speakers to the top cover. 106 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 115
Where used: 2 screws that secure the wireless antenna transceivers and cables to the display enclosure. Where used: 3 screws that secure the TouchPad button board to the TouchPad bracket. Where used: 2 screws that secure the audio board to the base enclosure. Phillips PM2.5×3.0 screw 107 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 116
Where used: One screw that secures the USB board to the base enclosure. 108 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 117
Phillips PM2.5×4.0 screw Color Silver Quantity 1 Length 4.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: One screw that secures the TouchPad button board to the TouchPad bracket. Phillips PM2.5×4.0 screw 109 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 118
Phillips PM2.5×5.0 screw Color Black Quantity 16 Length 5.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: One screw that secures the keyboard cover to the base enclosure. Where used: 2 screws that secure the top cover to the base enclosure. 110 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 119
Where used: 6 screws that secure the display panel to the display enclosure. Where used: One screw that secures the optical drive to the base enclosure. Where used: 2 screws that secure the bezel to the display enclosure. Phillips PM2.5×5.0 screw 111 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 120
Where used: 2 screws that secure the system board to the base enclosure. Where used: 2 screws that secure the fan to the base enclosure. 112 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 121
Phillips PM2.5×5.0 captive screw Color Black Quantity 4 Length 5.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: 4 captive screws (secured by C-clips) that secure the hard drive and RTC battery compartment covers to the base enclosure. Phillips PM2.5×5.0 captive screw 113 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 122
Phillips PM2.5×6.0 screw Color Black Quantity 7 Length 6.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: 2 screws that secure the top cover to the base enclosure. Where used: 4 screws that secure the display assembly to the base enclosure. 114 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 123
Where used: One screw that secures the keyboard cover to the base enclosure. Phillips PM2.5×6.0 screw 115 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 124
Phillips PM2.5×7.0 captive screw Color Black Quantity 1 Length 7.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: One captive screw (secured by a C-clip) that secures the memory module compartment cover to the base enclosure. 116 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 125
Phillips PM2.5×10.0 screw Color Black Quantity 5 Length 10.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: 2 screws that secure the keyboard cover to the base enclosure. Where used: 3 screws that secure the top cover to the base enclosure. Phillips PM2.5×10.0 screw 117 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 126
Phillips PM2.5×18.0 screw Color Black Quantity 3 Length 18.0 mm Thread 2.5 mm Head diameter 5.5 mm Where used: 3 screws that secure the keyboard to the base enclosure. 118 Chapter 7 Screw listing - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 127
Phillips PM3.0×3.0 screw Color Black Quantity 4 Length 3.0 mm Thread 3.0 mm Head diameter 5.5 mm Where used: 4 screws that secure the hard drive bracket to the hard drive. Phillips PM3.0×3.0 screw 119 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 128
(Recovery Manager software feature). Recovery discs are used to start up (boot) your computer and driver (Recovery Manager software feature). This feature helps you reinstall a program or driver HP Recovery drive is listed in the Hard Disk Drives section of the window. 120 Chapter 8 Backup and - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 129
Creating recovery discs NOTE: HP recommends that you create recovery discs to be sure the computer on 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. Backing up - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 130
Create system restore points using the Windows® System Restore feature, and periodically copy them to disc screen and paste it into a word-processing document, follow these steps: a. Display the screen. b. Copy the screen: To copy only the active window, press alt+fn+prt sc. To copy the entire screen - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 131
4. Under Automatic restore points, select the disk for which you want to create a 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 to a restore point (created at a previous date and time), when the - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 132
the computer and press f11 while the "Press for recovery" message is displayed on the screen. Then select Recovery Manager. Recovery Manager opens. 2. Click Advanced Options. 3. Click System recovery, and then click Next. 4. Follow the on-screen instructions. 124 Chapter 8 Backup and recovery - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 133
9 Connector pin assignments Audio-in (microphone) Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Audio-in (microphone) 125 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 134
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 126 Chapter 9 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 135
1TMDS data 0+ TMDS data 0 shield TMDS data 0TMDS clock+ TMDS clock shield TMDS clockConsumer electronic control (CEC) Not connected DDC clock DDC data Ground +5V power Hot plug detect HDMI 127 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 136
RJ-11 (modem) (select models only) Pin 1 2 3 4 5 6 RJ-45 (network) Signal Unused Tip Ring Unused Unused Unused Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused 5 Unused 6 Receive - 7 Unused 8 Unused 128 Chapter 9 Connector pin assignments - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 137
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground Universal Serial Bus 129 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 138
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 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 139
Requirements for specific countries or regions Country/region Accredited agency Applicable note number Australia 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 of the - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 140
section provides disassembly instructions for the display assembly. The display assembly must be disassembled to gain access to the backlight (1) and the liquid crystal display (LCD) panel (2). NOTE: The procedures provided in this chapter are general disassembly instructions. Specific details, such - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 141
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 and right inside edges (1) and the top and bottom inside edges (2) of the display bezel until the bezel - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 142
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 down. 8. Remove all screws that secure the display panel frame to the display panel. 9. Use a sharp-edged - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 143
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. Display 135 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 144
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 CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 145
(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. 23. Remove the LCD panel. 24. Recycle the LCD panel and - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 146
1394 Power Saving 87 90-W PFC AC adapter spare part number 24 A administrator password 87 antenna removal 55 spare part number 56 applications key, Windows 8 audio board illustrated 17 removal 68 spare part number 25, 68 audio board cable, spare part number 24 audio, product description 2 audio-in - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 147
integrated webcam, identifying 9 internal display switch module, spare part number 23, 25 internal display switch, identifying 9 internal microphones, identifying 9 interrupt specifications 95 inverter illustrated 17, 20 removal 53 spare part number 24, 54 J jacks audio-in (microphone) 11 audio-out - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 148
8 Windows applications 8 Windows logo 8 kits Display Hinge Kit 20 Display Rubber Kit 24 Display Screw Kit 24 Hard Drive Hardware Kit 24 Plastics Kit 21 Screw Kit 99 L LAN Power Saving 87 language support 87 latch, battery release 14 LCD rubber pads, spare part number 24 lights battery 5, 11 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 149
serviceability 3 wireless 2 product name 1 R recovery recovering a program or driver 120 system recovery 124 using the dedicated recovery partition 124 using the recovery discs 124 recovery discs 120, 121 Recovery Manager 120, 124 recovery partition 120 removal/replacement preliminaries 27 - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 150
applications key, identifying 8 Windows logo key, identifying 8 wireless antenna removal 55 spare part number 56 wireless button, identifying 7 wireless light, identifying 5 wireless, product description 2 WLAN module illustrated 17 removal - HP Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 151
Compaq Presario CQ40 Notebook PC
Maintenance and Service Guide