HP Presario CQ20-100 Compaq Presario CQ20 Notebook PC - Maintenance and Servic
HP Presario CQ20-100 - Notebook PC Manual
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- HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 1
b Compaq Presario CQ20 Notebook PC Maintenance and Service Guide Document Part Number: 482402-001 August 2008 This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts - HP Presario CQ20-100 | Compaq Presario CQ20 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 CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 3
Safety warning notice Å 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 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 4
4-5 Component replacement procedures 4-6 Serial number 4-6 Computer feet 4-7 Battery 4-7 Hard drive 4-8 Memory module 4-10 WLAN module 4-12 Optical drive 4-15 Keyboard 4-17 Top cover 4-19 Speaker assembly 4-22 Display assembly 4-23 Audio board 4-29 Maintenance and Service Guide v - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 5
4-30 System board 4-32 RTC battery 4-34 Modem module 4-35 Bluetooth module 4-36 Heat sink 4-37 Specifications Computer specifications 6-1 12.1-inch, WXGA display specifications 6-2 Hard drive specifications 6-2 DVD/CD-RW Combo Drive specifications 7-15 vi Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 6
9-2 HDMI 9-3 RJ-11 (modem 9-4 RJ-45 (network 9-4 Universal Serial Bus 9-5 10 Power cord set requirements Requirements for all countries and regions 10-1 Requirements for specific countries and regions 10-2 11 Recycling Battery 11-1 Display 11-1 Index Maintenance and Service Guide vii - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 7
Processors Chipset Graphics Panel Webcam Memory 1 Product description Description Compaq Presario CQ20 Notebook PC Intel® Core slots Supports dual-channel memory Supports up to 4 GB of system RAM PC2-6400, 800-MHz, DDR2 Supports the (1024 × 1) (Continued) Maintenance and Service Guide 1-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 8
formats: ■ Intel 802.11a/b/g/n ■ Broadcom 802.11a/b/g ■ Intel 802.11a/b/g ■ Broadcom 802.11b/g ■ Intel 802.11b/g Integrated personal area network (PAN) options by way of Bluetooth® module: Support for no-WPAN option Broadcom Bluetooth (Continued) 1-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 9
Windows Vista® Home Basic 32 with Office 2007 Ready Windows Vista Business 32 with Office 2007 Ready Windows Vista Home Premium 32 with Office 2007 Ready FreeDOS End-user replaceable parts: AC adapter Battery (system) Hard drive Memory module Optical drive WLAN module Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 10
and Environmental Notices that applies to your country or region. These notices are located in Help and Support. Record sound. ✎ All models have at least 1 internal microphone. On: The webcam is in use. Records audio and video and captures still photographs. Maintenance and Service Guide 2-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 11
Scrolls up or down. *This table describes factory settings. To view or change device preferences, select Start > Control Panel > Hardware and Sound > Mouse. 2-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 12
the computer. ■ When the computer is on, press the button to shut down the system. ■ When the computer is in Hibernation, press the the Sleep state. If the computer has stopped responding and Windows® shutdown procedures are ineffective, press and hold the power button for at Service Guide 2-3 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 13
Keys Item Component 1 esc key 2 fn key 3 Windows logo key 4 Windows applications key 5 Embedded numeric keypad keys 6 Function keys when pressed in combination with a function key or the esc key. Displays the Windows Start menu. Displays a shortcut menu for items beneath the pointer. Can be used - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 14
Service Guide Description On: Caps lock is on. ■ Amber: A battery is charging. ■ Green: A battery is close to full charge capacity. ■ Blinking amber: A battery a wireless local area network (WLAN) device, an HP Broadband Wireless Module, and/or a Bluetooth® device, is on. ■ Amber: All wireless - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 15
models only) HP 3D DriveGaurd audio. Item Component 1 Battery light 2 Power connector 3 battery that is the only available power source has reached a low battery level. When the battery reaches a critical battery level, the battery stays off until the battery reaches a low battery level. Connects an - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 16
Function 1 ExpressCard slot (select models only) Supports optional ExpressCards. 2 Digital Media Slot (select models only) Supports the following optional digital card formats: ■ MultiMedia , but it may not prevent the computer from being mishandled or stolen. Maintenance and Service Guide 2-7 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 17
fan to cycle on and off during routine operation. Holds the battery. Releases the battery from the battery bay. Holds a WLAN module (select models only). ✎ , and then contact technical support through Help and Support. Holds the hard drive and two memory modules. 2-8 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 18
unique to each product. 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. This is the number you use to locate documents, drivers, and support for your computer. This number - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 19
Illustrated parts catalog Computer major components 3-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 20
assembly with webcam 492154-001 Bluetooth module cable. The Bluetooth module cable is included in the Cable Kit, spare part number 493275-001. See "Cable Kit" on page 3-6 for more Cable Kit information. 398393-002 RTC battery 449137-001 Fan 493269-001 (Continued) Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 21
■ 585 2.16-GHz processor ■ 575 2.0-GHz processor Thermal module (includes heat sink and thermal material) Battery, 4-cell, 37-Wh Base enclosure (includes rubber feet) Optical drives (include optical drive bezel and bracket) -001 497536-001 493276-001 (Continued) 3-4 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 22
.11a/b/g WLAN modules: ■ For use in Canada, the Cayman Islands, Guam, Puerto Rico, the U.S. Virgin Islands, and 480985-001 the United States (Continued) Maintenance and Service Guide 3-5 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 23
(not illustrated) Cable Kit Spare Part Number 493195-001 493194-001 493199-001 493198-001 493197-001 493196-001 493275-001 Item Description Cable Kit: 1 Bluetooth module cable 2 Modem module cable (includes RJ-11 jack) Spare part number 493275-001 3-6 Maintenance and - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 24
screw, secured by a C-clip) 3 ExpressCard slot bezel 4 SD Memory Card slot bezel 5 Base enclosure screw covers (4 covers, 2 sizes) Spare part number 493274-001 Maintenance and Service Guide 3-7 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 25
120-GB, 5400-rpm Spare part number 493200-001 495017-001 493961-001 497536-001 493199-001 493198-001 493197-001 493196-001 3-8 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 26
Spare part number 463958-001 490371-001 490371-031 490371-AA1 490371-201 490371-011 490371-D61 490371-AD1 490371-AB1 493277-001 Maintenance and Service Guide 3-9 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 27
Bluetooth module ✎ The Bluetooth module spare part kit does not include a Bluetooth module cable. The Bluetooth module cable is included in the Cable Kit, spare part number 493275-001. RTC battery T9600 2.8-GHz (includes replacement thermal material) (Continued) 3-10 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 28
display panel 12.1-inch, WXGA BrightView display assembly with webcam Display enclosure Display bezel Display Miscellaneous Kit (includes rubber antenna cables) Webcam Display hinges Display inverter Memory module, 1024-MB Memory module, 2048-MB (Continued) Maintenance and Service Guide 3-11 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 29
5400-rpm Hard drive, 320-GB, 5400-rpm DVD/CD-RW Combo Drive (includes drive bezel and bracket) Battery, 4-cell, 37-Wh Fan Thermal module (includes heat sink and thermal material) Base enclosure (includes rubber feet material) Blu-ray ROM DVD±RW SuperMulti DL Drive 3-12 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 30
plastic parts. Apply pressure only at the points designated in the maintenance instructions. Cables and connectors Ä CAUTION: When servicing the computer, be sure that cables are placed in their proper flex cables with extreme care; these cables tear easily. Maintenance and Service Guide 4-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 31
or loss of information, observe these precautions: ■ Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer remove a component, place it in an electrostatic-safe container. 4-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 32
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 signals before inserting or removing connectors or test equipment. Maintenance and Service Guide 4-3 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 33
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 mats Floor mats Voltage protection level 1,500 V 7,500 V 5,000 V 4-4 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 34
on page 4-34). 6. Wait approximately 5 minutes. 7. Replace the RTC battery and reassemble the computer. 8. Connect AC power to the computer. Do not reinsert any batteries at this time. 9. Turn on the computer. All passwords and all CMOS settings have been cleared. Maintenance and Service Guide 4-5 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 35
the computer serial number to HP when requesting information or ordering specific information about the product's hardware components. The part number helps a service technician to determine what components and parts are needed. This is the number you use to locate documents, drivers, and support - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 36
the computer upside down on a flat surface, with the battery bay toward you. 2. Slide the battery release latch 1 to release the battery. 3. Remove the battery 2 from the computer. Install the battery by inserting it into the battery bay until you hear a click. Maintenance and Service Guide 4-7 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 37
off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). Remove the hard drive: 1. Position the Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 38
drive. b. Lift the bracket 2 straight up to remove it from the hard drive. Reverse this procedure to reassemble and install the hard drive. Maintenance and Service Guide 4-9 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 39
is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). Remove the memory module: 1. Position the and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 40
angle. ✎ 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. Maintenance and Service Guide 4-11 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 41
, Uganda, Ukraine, the United Arab Emirates, the United Kingdom, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zaire, Zambia, and Zimbabwe 487330-002 (Continued) 4-12 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 42
unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer from the computer. 4. Remove the battery (see "Battery" on page 4-7). Maintenance and Service Guide 4-13 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 43
slot at an angle. ✎ WLAN modules are designed with a notch 4 to prevent incorrect insertion. Reverse this procedure to install the WLAN module. 4-14 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 44
off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). Remove the optical drive: 1. Position the and Service Guide 4-15 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 45
optical drive bracket to the optical drive. c. Remove the optical drive bracket 2. Reverse this procedure to reassemble and install an optical drive. 4-16 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 46
off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive Service Guide 4-17 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 47
cable is attached, and disconnect the keyboard cable 2 from the system board. 6. Remove the keyboard. Reverse this procedure to install the keyboard. 4-18 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 48
off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive Service Guide 4-19 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 49
Removal and replacement procedures 3. Remove ten Torx T8M2.0×6.0 slotted screws. 4. Remove the three Phillips PM2.0×2.0BH screws in the battery bay. 5. Remove the three Phillips PM2.0×3.0 screws in the optical drive bay. 4-20 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 50
1 to release it. Move the top cover backward 2 and place it on the base enclosure. Reverse this procedure to install the top cover. Maintenance and Service Guide 4-21 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 51
off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 52
assembly with webcam Spare part number 492154-001 Before removing the display assembly, follow these steps: 1. Shut down and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive ( Service Guide 4-23 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 53
1 at the bottom of the display assembly and peel back the two rubber bumper strips 2 at the top of the display assembly. 4-24 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 54
to route the cables through the side openings in the hinge covers and avoid pinching the cables between the bezel and display enclosure. Maintenance and Service Guide 4-25 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 55
replacement procedures 8. To remove the webcam module: a. Disconnect the webcam cable 1 from the computer. b. Remove the webcam module 2 from the display enclosure. (The webcam is secured with double-sided tape is available using spare part number 493193-001. 4-26 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 56
to the display panel. d. Remove the display hinges 2 from the display panel. The display hinges are available using spare part number 493192-001. Maintenance and Service Guide 4-27 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 57
remove the microphone cable or WLAN transceivers and cable: ✎ The microphone, WLAN antenna cable, and the LCD module cable are included in the Cable Kit, spare part number 493275-001. a. Remove the two Phillips procedure to install the WLAN transceivers and cable. 4-28 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 58
off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive Service Guide 4-29 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 59
or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard 4-19) 4-30 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 60
high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software requirements. Exhaust air is displaced through the ventilation grill located on the left - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 61
steps: 1. Shut down the battery (see "RTC battery" on page 4-34) ■ Modem module (see "Modem module" on page 4-35) ■ Bluetooth module (see "Bluetooth module" on page 4-36) ■ Heat sink (see "Heat sink" on page 4-37) ■ Processor (see "Processor" on page 4-39) 4-32 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 62
. 4. Remove the system board from the base enclosure by pulling it away at an angle 4. Reverse this procedure to install the system board. Maintenance and Service Guide 4-33 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 63
leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared. Description RTC battery Spare part number 449137-001 Before removing the RTC battery, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 64
off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive Service Guide 4-35 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 65
Remove the battery (see "Battery" on Bluetooth module cable 1 from the system board. 3. Remove the two Phillips PM1.5×3.0 screws 2 that secure the Bluetooth module to the system board. 4. Remove the module 3. Reverse this procedure to install the Bluetooth module. 4-36 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 66
Before removing the heat sink, follow these steps: 1. Shut down the computer. If you are unsure whether the computer and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive ( and Service Guide 4-37 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 67
material is included with all system board, heat sink, and processor spare part kits. Reverse this procedure to install the heat sink. 4-38 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 68
in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard page 4-37) Maintenance and Service Guide 4-39 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 69
triangle 3 on the processor must be aligned with the triangle 4 embossed on the processor slot. Reverse this procedure to install the processor. 4-40 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 70
is a ROM-based information and customization utility that can be used even when your Windows operating system is not working. The utility reports information about the computer and provides settings then press enter. Your change goes into effect immediately. Maintenance and Service Guide 5-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 71
Setup Utility 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 changed when you restore the factory default settings. 5-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 72
may not be supported by your computer. Main menu Select System information Security menu 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, and keyboard - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 73
Setup Utility System Configuration menu Select Language Support Button Sound (select models only) Virtualization Technology Processor C4 State (select models only) LAN Power self-test on a secondary hard drive. Run a diagnostic test on the system memory. 5-4 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 74
Specifications Computer specifications Metric U.S. Dimensions Length 22.6 cm 8.9 in Width 29.4 cm 11.7 in Height (front to rear) 2.8 to 3.6 cm 1.10 to 1.42 in Weight Equipped with 4-cell battery and operates well within this range of temperatures. Maintenance and Service Guide 6-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 75
55°C (41°F to 131°F) *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly. ✎ Certain restrictions and exclusions apply. Contact technical support for details. 6-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 76
specifications Specifications RW, DVD+R, DVD+RW, DVD-RAM CD-R and CD-RW CD DVD specification Applicable disc Access time Random Cache buffer Data transfer rate 2X BD-RAM DVD-R, DVD-R-DL, DVD-RW, DVD-RAM (Ver.2), CD-DA, CD-ROM (Mode CD-R, CD-RW, and CD-TEXT DVD-RAM (Ver.2), DVD+R, DVD-R, CD-R, and - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 77
Drive and DVD±RW and CD-RW SuperMulti Double-Layer Drive with LightScribe specifications Applicable disc Access time Random Cache buffer Data transfer rate 5X DVD-RAM 8X DVD±RW 8X DVD±R 16X CD-R 16X CD-RW (High Speed *PC Card controller can use DMA 1, 2, or 5. 6-4 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 78
specifications Specifications Hardware IRQ System function IRQ0 System timer IRQ1 Standard 101-/102-Key or Microsoft® Natural Keyboard IRQ8 System CMOS . ✎ For operating systems after Windows 2000, APIC (Advanced programming interrupt controller) is used. Maintenance and Service Guide 6-5 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 79
Specifications System I/O address specifications I/O address (hex) 000 - 01F 020 - 021 024 - 025 028 - 029 02C Embedded Controller Motherboard resources Motherboard resources System CMOS/real time clock Motherboard resources Direct memory Controller (Continued) 6-6 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 80
SATA AHCI Controller ICH9M-E/M SATA AHCI Controller Mobile Intel 4 series Express Chipset Family ICH9M-E/M SATA AHCI Controller ICH9M-E/M SATA AHCI Controller Motherboard resources Motherboard resources Motherboard resources Motherboard resources Specifications Maintenance and Service Guide 6-7 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 81
000C0000-000CFFFF 000E8000-000FFFFF 00100000- XFFFFFFF (X+1)0000000-FEDFFFFF FED00000-FED003FF FEE01000-FFFFFFFF System function Base memory Video memory Video BIOS System BIOS Extended memory (based on memory installed) PCI bus High precision event timer PCI bus 6-8 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 82
7 Screw listing This section provides specification and reference information for the screws used in the computer. Some screws listed in this section are 1.5 mm Head diameter 3.0 mm Where used: 2 screws that secure the optical drive bracket to the optical drive Maintenance and Service Guide 7-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 83
Screw listing Where used: 4 screws that secure the display hinges to the display panel Where used: 2 screws that secure the Bluetooth module to the system board 7-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 84
Phillips PM2.0×3.0 screw Screw listing Color Silver Quantity 2 Length 3.0 mm Thread 2.0 mm Head diameter 3.0 mm Where used: 2 screws that secure the audio board to the base enclosure Maintenance and Service Guide 7-3 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 85
Screw listing Phillips PM2.0×4.0 screw Color Silver Quantity 2 Length 4.0 mm Thread 2.0 Head diameter 3.5 mm Where used: 2 screws that secure the WLAN module to the system board 7-4 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 86
screws 1 that secure the hard drive cover to the computer and 1 captive screw 2 that secures the wireless module compartment cover to the computer Maintenance and Service Guide 7-5 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 87
optical drive bay) that secure the top cover to the computer Where used: 2 screws that secure the modem module to the system board 7-6 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 88
Phillips PM2.0×6.0 screw Screw listing Color Black Quantity 2 Length 6.0 mm Thread 2.0 mm Head diameter 4.0 mm Where used: 2 screws that secure the display hinge covers to the display enclosure Maintenance and Service Guide 7-7 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 89
used: 6 screws that secure the display panel to the display enclosure Where used: 6 screws that secure the display bezel to the display enclosure 7-8 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 90
Phillips PM2.0×7.0 captive screw Screw listing Color Silver Quantity 1 Length 7.0 mm Thread 2.0 mm Head diameter 4.0 mm Where used: 1 captive screw that secures the fan to the base enclosure Maintenance and Service Guide 7-9 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 91
Screw listing Phillips PM2.0×10.0 captive screw Color Silver Quantity 4 Length 10.0 mm Thread 2.0 Head diameter 5.0 mm Where used: 4 captive screws that secure the heat sink to the system board 7-10 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 92
Phillips PM2.5×10.0 captive screw Screw listing Color Black Quantity 1 Length 10.0 mm Thread 2.5 Head diameter 5.0 mm Where used: 1 captive screw that secures the hard drive to the computer Maintenance and Service Guide 7-11 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 93
Screw listing Phillips PM3.0×3.0 screw Color Silver Quantity 4 Length 3.0 mm Thread 3.0 Head diameter 4.5 mm Where used: 4 screws that secure the hard drive bracket to the hard drive 7-12 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 94
Phillips PM3.0×4.0 screw Screw listing Color Silver Quantity 1 Length 4.0 mm Thread 3.0 Head diameter 4.5 mm Where used: 1 screw that secures the speaker assembly to the base enclosure Maintenance and Service Guide 7-13 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 95
Screw listing Phillips T2.0×2.0BH screw Color Black Quantity 3 Length 2.0 mm Thread 2.0 Head diameter 6.0 mm Where used: 3 screws (in the battery bay) that secure the top cover to the base enclosure 7-14 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 96
Torx T8M2.5×6.0 slotted screw Screw listing Color Black Quantity 21 Length 6.0 mm Thread 2.5 mm Head diameter 4.0 mm Where used: 1 screw that secures the optical drive to the computer Where used: 3 screws that secure the keyboard to the computer Maintenance and Service Guide 7-15 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 97
Screw listing Where used: 2 screws that secure the top cover to the base enclosure (top) Where used: 4 screws that secure the display assembly hinges to the computer 7-16 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 98
Screw listing Where used: 1 screw that secures the system board to the base enclosure Where used: 10 screws that secure the top cover to the base enclosure Maintenance and Service Guide 7-17 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 99
program or driver (Recovery Manager software feature). This feature helps you reinstall a program or driver without performing is present, an HP Recovery drive is listed in the Hard Disk Drives section of the window. Creating recovery discs ✎ HP recommends that you create Service Guide 8-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 100
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 your information With HP Windows in a window, toolbar, copy only the active window, press alt+fn+prt - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 101
system restore point allows you to save and name a snapshot of your hard drive at a specific point in time. You can then recover back to that point if you want to reverse , and then click Next. The System Restore window opens. 5. Follow the on-screen instructions. Maintenance and Service Guide 8-3 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 102
discs to recover your operating system and software. ✎ Windows has its own built-in repair features, such as System Restore and driver roll-back capabilities. If you have not already Click System recovery, and then click Next. 4. Follow the on-screen instructions. 8-4 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 103
Audio-out (headphone) 9 Connector pin assignments Pin 1 2 3 Audio-in (microphone) Signal Audio out, left channel Audio out, right channel Ground Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground Maintenance and Service Guide 9-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 104
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 9-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 105
) data clockConsumer electronics control (CEC) No connect Display data channel (DDC) clock Display data channel (DDC) data Ground +5V Power Hot plug detect Maintenance and Service Guide 9-3 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 106
Connector pin assignments RJ-11 (modem) Pin 1 2 3 4 5 6 RJ-45 (network) Signal Unused Tip Ring Unused Unused Unused Pin 1 2 3 4 5 6 7 8 9-4 Signal Transmit + Transmit Receive + Unused Unused Receive Unused Unused Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 107
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground Connector pin assignments Maintenance and Service Guide 9-5 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 108
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 for mating with the appliance inlet on the back of the computer. Maintenance and Service Guide 10-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 109
Power cord set requirements Requirements for specific countries and regions Country/region Accredited agency Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium evaluation in the country or region where it will be used. 10-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 110
liquid crystal display (LCD) panel 2. ✎ The procedures provided in this chapter are general disassembly instructions. Specific details, such as screw sizes, quantities, and locations, and component shapes and sizes, can vary from one computer model to another. Maintenance and Service Guide 11-1 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 111
the top and bottom inside edges 2 of the display bezel until the bezel disengages from the display assembly. 3. Remove the display bezel 3. 11-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 112
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. Maintenance and Service Guide 11-3 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 113
backlight cover. 14. Turn the display panel right-side up. 15. Remove the backlight cables 1 from the clip 2 in the display panel. 11-4 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 114
and handling the backlight to avoid damaging this component and causing exposure to the mercury. 18. Remove the backlight from the backlight frame. Maintenance and Service Guide 11-5 - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 115
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 backlight. 11-6 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 116
DVD±RW SuperMulti DL Drive removal 4-15 spare part number 3-4, 3-12, 4-15 specifications 6-3 boot options 5-4 Maintenance and Service Guide Index boot order 5-4 bottom components 2-8 built-in device Bluetooth device radio 2-5 modem 4-35 wireless button 2-3 WLAN device radio 2-5 button components - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 117
with LightScribe removal 4-15 spare part number 3-4, 3-12, 4-15 specifications 6-4 E electrostatic discharge 4-2 esc key 2-4 Ethernet, product description 4-27 spare part number 3-3, 3-11, 4-27 I I/O address specifications 6-6 interrupt specifications 6-5 Index-2 Maintenance and Service Guide - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 118
2-5 volume up 2-5 webcam 2-1 wireless 2-5 M Main menu 5-3 mass storage devices, spare part numbers 3-8 Media button 2-3 memory map specifications 6-8 memory module product description 1-1 removal 4-10 spare part numbers 3-6, 3-10, 3-11, 4-10 Maintenance and Service Guide Index microphone location - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 119
processors 1-1 product name 1-1 security 1-3 serviceability 1-3 webcam 1-1 wireless 1-2 product name 1-1, 3-1, 4-6 Q QuickPlay light 2-5 R recovery methods Index-4 f11 recovery 8-4 recovery discs 8-4 Recovery Manager 8-4 recovery partition 8-4 recycling battery 11-1 display 11-1 removal/replacement - HP Presario CQ20-100 | Compaq Presario CQ20 Notebook PC - Maintenance and Servic - Page 120
Index specifications Blu-ray ROM DVD±RW SuperMulti 3-1, 4-6 webcam location 2-1 product description 1-1 removal 4-26 spare part number 3-11 webcam light 2-1 Windows application key 2-4 Windows logo key cover illustrated 3-3, 3-7 spare part number 3-7 Maintenance and Service Guide Index-5
b
Compaq Presario CQ20 Notebook PC
Maintenance and Service Guide
Document Part Number: 482402-001
August 2008
This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides
comprehensive information on identifying computer features, components, and spare parts; troubleshooting
computer problems; and performing computer disassembly procedures.