Compaq Presario CQ40-400 Compaq Presario CQ40 Notebook PC - Maintenance and Se
Compaq Presario CQ40-400 - Notebook PC Manual
View all Compaq Presario CQ40-400 manuals
Add to My Manuals
Save this manual to your list of manuals |
Compaq Presario CQ40-400 manual content summary:
- Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 1
Compaq Presario CQ40 Notebook PC Maintenance and Service Guide - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 3
Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 4
iv Safety warning notice - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 5
...11 Left-side components ...12 Rear component ...13 Right-side components ...13 Bottom components ...14 3 Illustrated part numbers catalog Service tag ...15 Computer major components ...16 Display assembly components ...20 Plastics Kit ...21 Mass storage devices ...22 Miscellaneous parts ...23 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 85 Exiting the Setup Utility ...86 Setup Utility menus ...87 6 Specifications Computer specifications ...89 vi - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 7
92 Blu-ray ROM DVD±RW SuperMulti Double-Layer Drive specifications 93 System DMA specifications ...94 System interrupt specifications ...95 System I/O address specifications ...96 System memory map specifications 98 7 Screw listing Phillips PM2.0×2.0 broadhead screw 100 Phillips PM2 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 9
Product description Category Product Name Processors Chipset Graphics Panel Memory Description Compaq Presario CQ40 Notebook PC Intel® Core™2 Duo mobile processors T9550 2.66 GHz, 6-MB 2 SODIMM slots Customer-accessible and upgradable Supports up to 4 GB of system RAM PC2-6400 800-MHz, DDR2 1 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 V. - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 11
Security Operating system Serviceability Description Digital Media Slot, supports SD, MMC, MS battery (2.2-Ah, 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 12
2 External component identification Top components TouchPad Component Description (1) TouchPad on/off button (2) TouchPad* (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. - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 13
, such as a wireless local area network (WLAN) 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 14
Component (6) Drive light 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 15
Hibernation, briefly press the button 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 changing factory settings, refer to the user guides located in Help and Support. Top components 7 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 16
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 external - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 19
computer is not plugged into an external 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 ProtectSmart Hard Drive Protection has temporarily parked the internal hard drive. Connects an optional - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 20
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 (MS) ● Memory Stick Pro (MSP) ● MultiMedia Card (MMC) ● Secure Digital (SD) Memory - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 21
Rear component Component Vent Description 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. Right-side components NOTE: - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 22
(6) Vents (3) Description Holds the battery. Releases the battery from the battery bay. Holds the RTC battery. Contains the 2 memory module slots to restore computer functionality, and then contact technical support through Help and Support. Enable airflow to cool internal components. NOTE: - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 24
Computer major components 16 Chapter 3 Illustrated part numbers catalog - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 25
cover Hard drive cover Memory module compartment cover Heat sink (includes thermal material) System board (includes thermal material) Speaker assembly Fan RTC battery (includes two-sided tape) WLAN module Intel Wi-Fi Link 5100 802.11a/b/g/n WLAN module for use in all countries and regions Spare - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 28
Display assembly components Item Description Spare part number (1) Display bezel Display Hinge Kit (2a) Left/right display panel brackets (2b) Left/right display hinges (3) Camera module (4) 14.1-in, WXGA TFT BrightView display panel (includes display panel cable) 487286-001 486737-001 487287- - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 ● - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 32
802.11a/b/g WLAN module for use in all countries and regions Bluetooth module Display Screw Kit 486735-001 486736-001 486737-001 Display assembly -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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 33
, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan, Jordan, use in Taiwan Power cord for use in South Korea Power cord for use in India Intel T7350 Core2 Duo mobile processor (2.00 GHz, 3-MB L2 cache) Base - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 34
DVD±RW SuperMulti Double-Layer Drive (includes bezel) DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive with LightScribe (includes bezel) 6-cell Li-Ion battery (2.2-Ah, 47-Wh) 26 Chapter 3 Illustrated part numbers catalog - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 35
● Flat-bladed screwdriver ● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers Service considerations The following sections include some of the considerations that you must keep in pressure only at the points designated in the maintenance instructions. Preliminary replacement requirements 27 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 36
Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer. Cables must - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 37
,000 V 12,000 V 5,000 V 6,000 V 800 V 2,000 V 700 V 11,500 V 4,000 V 14,500 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 38
material. ● Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When fixtures must directly contact dissipative surfaces, use fixtures made only of static - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 39
with ground cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes, or boxes ● Metal tote boxes ● Electrostatic voltage levels and - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 42
the computer upside down on a flat surface. 2. Slide the battery release latch (1) to release the battery. 3. Pivot the battery (2) upward and lift it out of the computer (3). To insert the battery, insert the rear edge of the battery into the battery bay and pivot the front edge downward until the - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 43
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 right side toward you. 2. Remove the Phillips PM2.5×5.0 screw (1) that - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 44
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 toward you. 2. Loosen the two Phillips PM2.5×5.0 captive screws - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 45
5. Use the Mylar tab (2) to slide the hard drive (3) to 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 46
Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan, outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 34). 5. Remove the hard drive cover (see Hard drive on - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 47
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 insertion into the WLAN module slot. Reverse this procedure - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 48
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 screws (1) that secure the RTC battery compartment cover to the computer. 2. Lift the right side of the RTC - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 49
4. Remove the RTC battery (2). Reverse this procedure to install the RTC battery. Component replacement procedures 41 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 50
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 module: 1. Position the computer with the front toward you. 2. Loosen the Phillips PM2.5×7.0 captive screw (1) that - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 52
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 the keyboard to the computer - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 53
6. Lift the keyboard (2) up until the tabs on the bottom of the keyboard 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 54
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 following components: a. Optical drive (see Optical drive on page 35) b. Hard drive (see Hard drive on page 36 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 56
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 following components: a. Optical drive (see Optical drive on page 35) b. Hard drive (see Hard drive on page 36 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 57
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 following components: a. Optical drive (see Optical drive on page 35) b. Keyboard (see Keyboard on page 44) c. Keyboard - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 59
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 the WLAN module (see WLAN module on page 38). 6. Remove the following components - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 60
and clips built into the top cover. 6. Disconnect the microphone cable from the system board (2). CAUTION: Support the display assembly when removing the following screws. Failure to support the display assembly can result in damage to the display assembly and other computer components. 7. Remove - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 61
9. If it is necessary to replace any of the display assembly internal components, remove the following screw covers and screws. The display rubber screw covers are included in the Display Rubber Kit, spare part number 487283-001. (1) Two Mylar screw covers on the display bezel bottom edge (2) Two - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 62
13. Disconnect the backlight cable (2) and the display panel cable (3) from the display inverter. The display inverter is available using spare part number 486736-001. 14. Remove the inverter. 15. If it is necessary to replace the display panel, remove the six black Phillips PM2.5×5.0 screws (1) - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 63
The display cable is available using spare 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 65
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 following components: a. Optical drive (see Optical drive on page 35) b. Keyboard (see Keyboard on page 44) c. Keyboard - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 66
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 following components: a. Optical drive (see Optical drive on page 35) b. Keyboard (see Keyboard on page 44) c. Keyboard - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 67
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 69
7. Remove the top cover (3). Reverse this procedure to install the top cover. Component replacement procedures 61 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 70
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 72
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 page 59) Remove the Bluetooth module: 1. Turn the top cover upside down with the front toward you. 2. Disconnect the Bluetooth module cable (1) from the - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 73
5. Remove the Bluetooth module (5) from the top cover. Reverse this procedure to install the Bluetooth module. Component replacement procedures 65 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 74
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 76
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 77
6. Remove the audio board (4). Reverse this procedure to install the audio board. Component replacement procedures 69 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 78
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 80
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 82
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 84
6. Release the system board by 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 85
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 87
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 88
2. Lift the processor (2) straight up and remove it. NOTE: The gold triangle (3) on the processor must be aligned 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 89
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 following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 91
WARNING! Only authorized technicians trained by HP must repair this equipment. All troubleshooting and repair procedures are detailed to allow information and customization utility that can be used even when your Windows® operating system is not working. The utility reports information about the - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 92
then press enter. Your change goes into effect immediately. Navigating and selecting in the Setup Utility Because the Setup Utility is not Windows based, it does not support the TouchPad. Navigation and selection are by keystroke. ● To choose a menu or a menu item, use the arrow keys. ● To choose an - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 93
Displaying system information The following procedure explains how to display system information in the Setup Utility. If the Setup Utility is not open, begin at step 1. If the Setup Utility is open, begin at step 2. 1. Open the Setup Utility by turning on or restarting the computer. While the " - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 94
the menu display. Then use the arrow keys to select Exit > Exit Discarding Changes, and then press enter. After either choice, the computer restarts in Windows. 86 Chapter 5 Setup Utility - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 95
menu items listed in this section may not be supported by your computer. Main menu Select System information To do this ● View and change the system time and date. ● View identification information about the computer. ● View specification information about the processor, memory size, system BIOS - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 96
Select 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- - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 98
14.1-in, WXGA BrightView display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration 1280 × 800 RGB vertical stripe Edge lit 80 × 25 5.2 W +/-40° horizontal, +15/-35° vertical (typical) 90 Chapter 6 Specifications - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 100
and CD-RW SuperMulti Double-Layer Combo Drive specifications Applicable disc Access time Random Cache buffer Data 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 92 Chapter 6 Specifications - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 101
Blu-ray ROM DVD±RW SuperMulti Double-Layer Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate HD < 230 ms 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 4,500 KB/sec 4,500 KB/ - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 103
System interrupt specifications Hardware IRQ IRQ0 IRQ1 IRQ8 IRQ9 IRQ11 IRQ12 IRQ13 IRQ16 (ICH9 Family) PCI Express Port 1-2940 Intel (ICH9 Family) PCI Express Port 5-2948 Mobile Intel 4 Series Express Chipset PCI Express Port 2-2A41 nVIDIA GeForce G103 M Intel (ICH9 Family) PCI Express Port 2-2942 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 104
System I/O address specifications I/O address (hex) 000 - 01F 020 - 021 024 - 025 028 - 029 02C - 03D 02E - 02F 030 - 031 034 - 035 038 controller Programmable interrupt controller Programmable interrupt controller Programmable interrupt controller Motherboard resources 96 Chapter 6 Specifications - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 105
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 configuration index register (PCIDIVO-1) PCI configuration data register (PCIDIVO-1) System I/O address specifications 97 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 106
System memory map specifications Size 640 KB 128 KB 64 KB 64 MB Memory address 00000000-0009FFFF 000A0000-000BFFFF 000C0000-000CFFFF 000E8000-00FFFFFF Video BIOS System BIOS Extended memory (based on memory installed) PCI bus and motherboard resources System BIOS 98 Chapter 6 Specifications - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 110
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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 112
Where used: 3 screws that secure the hard drive to the base enclosure. 104 Chapter 7 Screw listing - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 116
Where used: One screw that secures the USB board to the base enclosure. 108 Chapter 7 Screw listing - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 123
Where used: One screw that secures the keyboard cover to the base enclosure. Phillips PM2.5×6.0 screw 115 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 128
● Recovering a program or driver (Recovery Manager software feature). This feature helps you reinstall a program or driver without performing a full system . If the partition is present, an HP Recovery drive is listed in the Hard Disk Drives section of the window. 120 Chapter 8 Backup and recovery - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 130
up templates stored in their associated programs. ● Save customized settings in a window, toolbar, or menu bar by taking a screen shot of your settings. 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 you want - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 132
have previously backed up. HP recommends that you use Recovery . NOTE: Windows has its own built-in repair features, such as System Restore and driver roll-back and restart the computer. 3. Follow the on-screen instructions. Recovering from the dedicated recovery partition (select models only - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 135
HDMI Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Signal Transition minimized differential signal (TMDS) data 2+ TMDS data 2 shield TMDS data 2TMDS data 1+ TMDS data 1shield TMDS data 1TMDS data 0+ TMDS data 0 shield TMDS data 0TMDS clock+ TMDS clock shield TMDS clockConsumer electronic - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 137
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground Universal Serial Bus 129 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 138
10 Power cord set requirements The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 volts AC or from 220 to 240 volts AC. The 3-conductor power cord set included with the computer meets the requirements for use in the country or region where the - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 139
Requirements for specific countries or regions Country/region Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA responsible for evaluation in the country or region where it will be used. Requirements for specific countries or regions 131 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 140
battery in general household waste. Follow the local laws and regulations in your area for computer battery them carefully. NOTE: Materials Disposal. This HP product contains mercury in the backlight in the in this chapter are general disassembly instructions. Specific details, such as screw sizes, - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 142
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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 145
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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 146
removal 55 spare part number 56 applications key, Windows 8 audio board illustrated 17 removal 68 spare part battery 14 components bottom 14 front 4, 11 left-side 12 rear 13 right-side 13 top 4 computer feet locations 33 spare part number 23, 33 computer specifications 89 connector power 13 service - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 147
76 spare part number 26, 76 hinge illustrated 20 removal 55 spare part number 24, 55 I I/O address specifications 96 integrated webcam light, identifying 9 integrated webcam, identifying 9 internal display switch module, spare part number 23, 25 internal display switch, identifying 9 internal - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 148
support 87 latch, battery release 14 LCD rubber pads, spare part number 24 lights battery 5, 11 caps lock 5 Digital Media Slot 12 drive 6, 11 num lock 5 optical drive 13 power 5, 11 TouchPad 4 webcam 9 wireless 5 M main menu 87 mass storage devices, spare part number 22 memory map specifications - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 149
serviceability 3 wireless 2 product name 1 R recovery recovering a program or driver battery illustrated 17 removal 40 spare part number 24, 40 RTC battery speakers, identifying 7 specifications Blu-ray ROM materials 31 supported discs 121 webcam light, identifying 9 webcam, identifying 9 Index 141 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - 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 - Compaq Presario CQ40-400 | Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 151
Compaq Presario CQ40 Notebook PC
Maintenance and Service Guide