HP G72-257CL Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten
HP G72-257CL Manual
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- HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 1
Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC Maintenance and Service Guide Document Part Number: 597891-001 May 2010 This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 2
- HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 3
to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 4
Revision History Revision A Publication Date October 2010 Description ■ Chapter 1 - added new descriptions for the following components: ❏ Hard drive ❏ Memory module ❏ Processor ■ Chapter 3 and Chapter 4 -added new spare part numbers and descriptions for the following components: ❏ Display - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 5
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 G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 6
- HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 7
Component replacement procedures 4-5 Service tag 4-5 Computer feet 4-6 Battery 4-7 Hard drive 4-8 Memory module 4-11 Wireless module 4-13 Optical drive 4-15 Keyboard 4-17 Speakers 4-20 Top cover 4-22 Power button board 4-25 TouchPad button board 4-26 Maintenance and Service Guide iv - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 8
4-38 Power connector 4-40 Bluetooth module 4-41 Modem 4-42 System board 4-43 RTC battery 4-45 Fan/heat sink assembly 4-46 Processor 4-52 RJ-11 connector 4-54 Optical drive 9-2 HDMI 9-3 RJ-11 (modem 9-4 RJ-45 (network 9-4 Universal Serial Bus 9-5 v Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 9
Contents 9 Power cord set requirements Requirements for all countries and regions 10-1 Requirements for specific countries and regions 10-2 10 Recycling Battery 11-1 Display 11-1 Index Maintenance and Service Guide vi - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 10
Contents vii Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 11
× 1, 1024 × 2) ■ 1024 MB total system memory (1024 × 1) Supports all 9.5-mm, 6.35-cm (2.50-in) SATA hard drives Customer accessible Single HP G72 UMA X X X X X X X X X X X X X X X X X X X X X X X X X X HP G72 Discrete X X X X X X X X X X X X X X X X X X X X X X X X Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 12
Dsub 15-pin) supporting 1600 × 1200 external resolution at HP G72 UMA X X X X HP G72 Discrete X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 1-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 13
bit Serviceability End-user replaceable parts: AC adapter Battery (system) Hard drive Memory module Optical drive Mini Card components Product description HP G72 UMA X X X X X X HP G72 Discrete X X X X X X X X X X X X X X X X X X X X X X Maintenance and Service Guide 1-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 14
Product description 1-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 15
. To view or change the pointing device preferences: 1. Select Start > Devices and Printers. 2. Right-click the device representing the computer. 3. Select Mouse settings. Maintenance and Service Guide 2-1 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 16
: All wireless devices are off. ■ On: The numeric function of the keypad is enabled. ■ Off: The navigation function of the keypad is enabled. 2-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 17
Start > Control Panel > System and Security > Power Options. 2 Speakers (2) Produce sound. *This table describes factory settings. For information about changing factory settings, see the user guides located in Help and Support. Maintenance and Service Guide 2-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 18
a shortcut menu for items beneath the pointer. Can be used like the keys on an external numeric keypad. Execute frequently-used system actions. 2-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 19
microphone, or monaural microphone. Produces sound when connected to optional powered stereo speakers, headphones, earbuds, a headset, or television audio. Supports the following optional digital card formats: ■ Memory Stick (MS) ■ Memory Stick Pro (MSP) ■ MultiMediaCard (MMC) ■ Secure Digital (SD - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 20
the computer. ✎ The security cable is designed to act as a deterrent, but it might not prevent the computer from being mishandled or stolen. 2-6 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 21
the internal fan to cycle on and off during routine operation. Releases the battery from the battery bay. Holds the hard drive. Holds two memory modules and the wireless local computer functionality, and then contact technical support through Help and Support. Maintenance and Service Guide 2-7 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 22
External component identification Display components Item Component 1 Internal microphone 2 Webcam (select models only) 3 Webcam light (select models only) Description Records sound. Records video and captures still photographs. On: The webcam is in use. 2-8 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 23
notices, see the section of the Regulatory, Safety and Environmental Notices that applies to your country or region. These notices are located in Help and Support. Maintenance and Service Guide 2-9 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 24
1 Power cord* 2 AC adapter 3 Battery *Power cords vary in appearance by country or region. Description Connects an AC adapter to an AC outlet. Converts AC power to DC power. Powers the computer when the computer is not plugged into external power. 2-10 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 25
information, provide the computer serial number and model number located on the service tag. Component 1 Product name 2 Serial number (s/n) 3 Part about the product's hardware components. The part number helps a service technician to determine what components and parts are needed. The duration - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 26
Illustrated parts catalog Computer major components 3-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 27
GHz) (for model 587259-001 1.0 only) Intel Core i5-540M Processor (3M cache, 2.53 GHz, SC turbo up to 3.06 GHz) 594188-001 Maintenance and Service Guide 3-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 28
(3M cache, 1.9 GHz) (for model 1.1 only) 572925-001 Thermal pad kit for processor 634428-001 RTC battery 602745-001 Memory module 1 GB (1066 MHz, DDR3) 598859-001 2 GB (1066 MHz, DDR3) 598856- , Venezuela, Vietnam, Yemen, Zambia, and Zimbabwe 518436-002 3-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 29
United Kingdom, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zaire, Zambia, and Zimbabwe 582562-002 Realtek RTL8191SE 802.11b/g/n 1x1 WiFi Adapter 593533-001 Maintenance and Service Guide 3-5 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 30
included in Cable Kit (see "Cable Kit" on page 3-12 for spare part component information) 600853-001 Optical drive bracket (included with optical drive) Battery 6-cell Li-lon, 2.20 Ah, 47 Wh 593553-001 6-cell Li-lon, 2.55 Ah, 55 Wh 593554-001 Optical drive (includes optical drive bezel - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 31
compartment cover Spare part number 602543-001 600853-001 537921-001 602538-001 599088-001 599089-001 610693-001 600849-001 595200-001 Maintenance and Service Guide 3-7 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 32
Illustrated parts catalog Display assembly components 3-8 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 33
-001 599080-001 600711-001 599087-001 600650-001 600713-001 600714-001 599082-001 599082-001 610690-001 595198-001 600712-001 Maintenance and Service Guide 3-9 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 34
Illustrated parts catalog Plastics Kit Item Description Plastics Kit: 1 Hard drive cover 2 Memory module compartment cover Spare part number 595200-001 3-10 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 35
SuperMulti Double-Layer Drive Spare part number 603785-001 603784-001 603783-001 605606-001 613416-001 599057-001 602542-001 602543-001 Maintenance and Service Guide 3-11 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 36
463955-001 600853-001 490371-081 490371-021 490371-061 430971-001 490371-AR1 490371-111 490371-031 600850-001 600712-001 3-12 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 37
, Tuvalu, Uganda, United Arab Emirates, United Kingdom, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, and Zimbabwe 510100-001 Modem module (select models only) Maintenance and Service Guide 3-13 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 38
MV T4500 Processor (3M cache, 2.3 GHz) (for model 1.1 only) 592399-001 Intel Penryn MV T3300 Processor (3M cache, 2.0 GHz) (for model 1.1 only) 3-14 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 39
for model 1.0 only) 593533-001 Realtek RTL8191SE 802.11b/g/n 1x1 WiFi Adapter 593553-001 Battery, 6-cell, 2.20 Ah, 47 Wh 593554-001 Battery, 6-cell, 2.55 Ah, 55 Wh 594187-001 Intel Core i5-520M Processor (3M assembly for G62 biscotti computer models Maintenance and Service Guide 3-15 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 40
(includes TouchPad board) 600717-001 USB board with cable 600718-001 Power button board with cable 600719-001 Power connector (includes cable) 3-16 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 41
LightScribe 602543-001 Blu-ray ROM with LightScribe DVD±R/RW SuperMulti Double-Layer Drive 602745-001 RTC battery 603783-001 320 GB, 7200 rpm hard drive 603784-001 500 GB, 7200 rpm hard drive 634433-001 Thermal pad kit for South Bridge chipset Maintenance and Service Guide 3-17 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 42
Illustrated parts catalog 3-18 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 43
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 G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 44
touching pins, leads, and circuitry. Handle electronic components as little as possible. ■ If you remove a component, place it in an electrostatic-safe container. 4-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 45
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 before inserting or removing connectors or test equipment. Maintenance and Service Guide 4-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 46
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 G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 47
servicing the computer. Make special note of each screw size and location during removal and replacement. Service tag number and model number located on the service tag. Item Component 1 Product name components. The part number helps a service technician to determine what components and parts - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 48
Removal and replacement procedures Computer feet The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, spare part number 595198-001. There are 4 rubber feet that attach to the base enclosure in the locations illustrated below. 4-6 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 49
the battery 2 upward and remove it 3 from the computer. To insert the battery, insert the rear edge of the battery into the battery bay and pivot the front edge downward until the battery is seated. The battery release latch automatically locks the battery into place. Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 50
from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). Remove the hard drive: 1. Loosen the two Phillips PM2.5×5.5 captive screws included in the Plastics Kit, spare part number 595200-001. 4-8 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 51
side of the hard drive. 8. Grasp the 2 attached Mylar tabs and pull the bracket 2 straight up to remove it from the hard drive. Maintenance and Service Guide 4-9 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 52
Removal and replacement procedures Reverse this procedure to reassemble and install the hard drive. 4-10 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 53
from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). Remove the memory module: 1. Loosen the three Phillips PM2.5×5.0 captive screws in the Plastics Kit, spare part number 595200-001. Maintenance and Service Guide 4-11 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 54
. 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. 4-12 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 55
802.11b/g WiFi Adapter for use in Canada, the Cayman Islands, Guam, Puerto Rico, the U.S. Virgin Islands, and the United States 582562-001 Maintenance and Service Guide 4-13 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 56
power from the computer by first disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 4-14 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 57
message, remove the module to restore computer functionality, and then contact technical support through Help and Support. 1. Disconnect the main antenna cable 1 and the auxiliary antenna cable 2 insertion. Reverse this procedure to install the wireless module. Maintenance and Service Guide 4-15 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 58
cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). Remove the optical drive: 1. Position the computer upside down with the right and slide the optical drive 3 out of the computer. 4-16 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 59
the optical drive bracket to the optical drive. 7. Remove the optical drive bracket 2. Reverse this procedure to reassemble and install an optical drive. Maintenance and Service Guide 4-17 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 60
power from the computer by first disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the optical drive screw (see "Optical drive" on page 4-16). 4-18 Maintenance and - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 61
of the keyboard using a thin flat-bladed screwdriver. 6. Lift the rear edge of the keyboard 3, and set the keyboard back towards the display 4. Maintenance and Service Guide 4-19 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 62
is attached, and then disconnect the keyboard cable 2 from the system board. 8. Remove the keyboard. Reverse this procedure to install the keyboard. 4-20 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 63
and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive toward you. 2. Remove the three Phillips PM2.5×5.0 screws inside the battery bay that secure the speaker assembly to the base enclosure. 3. Turn - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 64
Removal and replacement procedures 6. Use a thin flat-bladed screwdriver to pry up the front edge 3 of the speaker bar to a 45-degree angle, and then disengage it by pulling it free at that angle. Reverse this procedure to install the speakers. 4-22 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 65
Turn the computer upside down, with the front toward you. 2. Remove four Phillips PM2.5×3 screws from the battery bay 1, one Phillips PM2.5×6.5 screw 2 from the hard drive bay (identified with a triangle icon embossed you. 4. Open the computer as far as possible. Maintenance and Service Guide 4-23 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 66
icon embossed on the top cover. 6. Release the speaker cable 1, power button ZIF connector 2, TouchPad ZIF connector 3, and TouchPad button ZIF connector 4. 4-24 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 67
is glued to the top cover and is included with the top cover spare part. Reverse this procedure to install the top cover. Maintenance and Service Guide 4-25 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 68
power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove the this procedure to install the power button board. 4-26 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 69
power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove this procedure to install the TouchPad button board. Maintenance and Service Guide 4-27 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 70
power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove the . Remove the top cover (see "Top cover" on page 4-23). 4-28 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 71
display hinge 4. 3. Disconnect the webcam cable 5 from the system board and release it from the clips that attach it to the system board. Maintenance and Service Guide 4-29 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 72
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. 4. Remove 2 straight up to remove it. Reverse this procedure to install the display assembly. 4-30 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 73
covers are included in the Display Rubber Kit, spare part number 595198-001. 2 Two Phillips PM2.5×7.0 screws on the display bezel bottom edge. Maintenance and Service Guide 4-31 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 74
right sides 2, until the bezel disengages from the display enclosure. 3. Remove the display bezel 3. Reverse this procedure to install the display bezel. 4-32 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 75
remove the webcam module. The webcam module is available using spare part number 600166-001. Reverse this procedure to install the webcam module. Maintenance and Service Guide 4-33 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 76
covers 2. The display hinge covers are available using spare part number 600650-001. Reverse this procedure to install the display hinge covers. 4-34 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 77
display panel cable 2 from the routing channel. 3. Remove the display panel 3 from the display enclosure. Reverse this procedure to install the display panel. Maintenance and Service Guide 4-35 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 78
panel. The display panel brackets are available using spare part number 600711-001. Reverse this procedure to install the display panel brackets. 4-36 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 79
are available with the LCD cable kit using spare part number 599087-001. Reverse this procedure to install the display wireless antenna transceivers. Maintenance and Service Guide 4-37 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 80
module is available with the LCD cable kit using spare part number 599087-001. Reverse this procedure to install the microphone module. 4-38 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 81
the power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove the the cable kit using spare part number 600853-001. Maintenance and Service Guide 4-39 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 82
Removal and replacement procedures Reverse this procedure to install a USB board. 4-40 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 83
from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Before removing the Bluetooth module: Maintenance and Service Guide Spare part number 537921-001 602538-001 4-41 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 84
cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove 2. Reverse this procedure to install the Bluetooth module. 4-42 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 85
cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove the computer 2. Reverse this procedure to install the modem. Maintenance and Service Guide 4-43 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 86
power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove " on page 4-47) ■ Processor (see "Processor" on page 4-53) 4-44 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 87
up to a 45-degree angle. 8. Pull it away from the base enclosure 3 at that angle. Reverse this procedure to install the system board. Maintenance and Service Guide 4-45 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 88
board (see "System board" on page 4-44). Remove the RTC battery: 1. Use a sharp, non-conductive tool to release the clip 1 that secures the battery to the system board. 2. Lift the battery 2 out of the computer. Reverse this procedure to install the RTC battery. 4-46 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 89
power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove . Remove the sytem board (see "System board" on page 4-44). Maintenance and Service Guide 4-47 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 90
memory. 1. Turn the system board right-side up, with the back edge toward you. 2. Disconnect the fan cable from the system board. 4-48 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 91
Removal and replacement procedures 3. Loosen the four Phillips spring-loaded captive screws 1 that secure the fan/heat sink assembly in the sequence shown on the heat sink. 4. Remove the fan/heat sink assembly 2 by lifting it straight up. Maintenance and Service Guide 4-49 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 92
sink. 8. Remove the fan/heat sink assembly 3 by lifting it straight up. Reverse this procedure to install the fan/heat sink assembly. 4-50 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 93
components each time the fan/heat sink assembly is removed. Thermal grease is located on the section of the fan/heat sink assembly 1 that services the processor 2. Replacement thermal grease and pads are included in spare parts kits for all system boards, fan/heat sink assemblies, and processors - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 94
of the fan/heat sink assembly 2 that services the Northbridge chip 4. Replacement thermal grease and pads are included with all system board, fan/heat sink assembly, and processor spare part kits. Reverse this procedure to install the fan/heat sink assembly. 4-52 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 95
AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7) 5. Remove the battery (see "Battery" on page 4-7). 6. Remove the battery (see "Battery" on page 4-7). 7. Remove the hard drive assembly (see "Fan/heat sink assembly" on page 4-47). Maintenance and Service Guide 4-53 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 96
triangle on the processor 3 must be aligned with the triangle embossed on the processor slot 4. Reverse this procedure to install the processor. 4-54 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 97
AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7) 5. Remove the battery (see "Battery" on page 4-7). 6. Remove the battery (see "Battery" on page 4-7). 7. Remove the hard drive Remove the sytem board (see "System board" on page 4-44). Maintenance and Service Guide 4-55 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 98
Removal and replacement procedures Remove the RJ-11 connector 1. Remove the cable from the clips 1, and then lift the connector straight up 2 and out of the computer. Reverse this procedure to install the RJ-11 connector. 4-56 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 99
power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7) 5. Remove the hard drive (see "Hard drive" on page 4-8). 6. Remove . Remove the sytem board (see "System board" on page 4-44). Maintenance and Service Guide 4-57 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 100
Removal and replacement procedures Remove the optical drive connector: 1. Remove the two Phillips PM2.0×6.0 screws 1, and then lift the connector straight up 2 to remove it from the computer. Reverse this procedure to install the optical drive connector. 4-58 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 101
Setup Utility, use the arrow keys to select Exit > Exit Saving Changes, and then press the enter key. Changes go into effect immediately. Maintenance and Service Guide 5-1 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 102
Utility Navigating and selecting in Setup Utility Because 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 are not changed when you restore the factory default settings. 5-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 103
options. ✎ Some of the Setup Utility menu items listed in this chapter might not be supported by the computer. Main menu Select System information Security menu Select Administrator password Power-On password. Enter, change, or delete a power-on password. Maintenance and Service Guide 5-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 104
Setup Utility System Configuration menu Select Language Support Button Sound (select models only) Virtualization Technology (select models only) Processor C6 State (select models self-test on a secondary hard drive. Run a diagnostic test on the system memory. 5-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 105
Depth 26.9 cm 10.5 in Height (front) 3.2 cm 1.3 in Height (rear) 3.8 cm 1.5 in Weight Equipped with 6-cell battery and optical drive 2.9 kg 6.6 Ibs Input power Operating voltage 18.5 V dc @ 3.5 A - 65 W or 19.0 V within this range of temperatures. Maintenance and Service Guide 6-1 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 106
9.17 in 15.6 in 17.3 in 0.259 x 0.259 mm 1368 x 768 RGB vertical strip LED 80 x 25 5.3 w +/-45° horizontal, +15/-35 vertical typical 6-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 107
when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications might differ slightly. ✎ Certain restrictions and exclusions apply. Contact technical support for details. Maintenance and Service Guide 6-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 108
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 6-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 109
+R, DVD-R, CD-R, and CD-RW BD DVD < 230 ms < 180 ms 4.5 MB 9 MB/sec 2,400 KB/sec 2,400 KB/sec 2,400 KB/sec Maintenance and Service Guide 6-5 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 110
Specifications 6-6 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 111
a regular basis to maintain a reasonably current backup. Tools provided by the operating system and HP Recovery Manager software are designed to help you with the following tasks for safeguarding your information set of recovery discs can be created per computer. Maintenance and Service Guide 7-1 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 112
the computer on battery power, you are 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. When to a word-processing document, and then select Edit > Paste. 7-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 113
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 . The System Restore window opens. 5. Follow the on-screen instructions. Maintenance and Service Guide 7-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 114
the presence of a recovery partition, select Start > Computer. If the partition is present, an HP Recovery drive is listed in the Hard Disk Drives section of the window. On some models, you System recovery, and then click Next. 4. Follow the on-screen instructions. 7-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 115
Audio-in (microphone) 8 Connector pin assignments Pin 1 2 3 Audio-out (headphone) Signal Audio signal in Audio signal in Ground Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Maintenance and Service Guide 8-1 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 116
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 8-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 117
) data clockConsumer electronics control (CEC) Not connected Display data channel (DDC) clock Display data channel (DDC) data Ground +5V Power Hot plug detect Maintenance and Service Guide 8-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 118
Connector pin assignments RJ-11 (modem) 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 8-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 119
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground Connector pin assignments Maintenance and Service Guide 8-5 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 120
Connector pin assignments 8-6 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 121
of an EN 60 320/IEC 320 Standard Sheet C13 connector for mating with the appliance inlet on the back of the computer. Maintenance and Service Guide 9-1 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 122
wall plug) must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used. 9-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 123
battery in general household waste. Follow the local laws and regulations in your area for computer battery .org. This section provides disassembly instructions for the display assembly. The display provided in this chapter are general disassembly instructions. Specific details, such as screw sizes - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 124
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. 10-2 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 125
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 10-3 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 126
backlight cover. 14. Turn the display panel right-side up. 15. Remove the backlight cables 1 from the clip 2 in the display panel. 10-4 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 127
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 10-5 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 128
4 that secures the LCD panel to the display rear panel. 23. Remove the LCD panel. 24. Recycle the LCD panel and backlight. 10-6 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 129
8-3 scheduling 8-2 base enclosure, spare part number 3-6 battery location 2-7 spare part number 3-5 battery bay 2-7 Bluetooth module removal 4-41 spare part number esc key 2-4 Ethernet, product description 1-2 external media cards, product description 1-2 Maintenance and Service Guide Index-1 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 130
2-6 precautions 4-2 product description 1-2 removal 4-15 spare part number 3-6, 3-10, 4-7, 4-15 specifications 6-4, 6-5 optical drive connector spare part number 4-56 P packaging guidelines 4-3 panel, product description 1-1 Maintenance and Service Guide - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 131
name 1-1 serviceability 1-3 TouchPad 2-1 video 2-5 webcam 1-2 wireless module 1-2 product name 1-1 Maintenance and Service Guide Index R pin assignments 9-4 RJ-45 (network) jack location 2-5 pin assignments 9-4 RTC battery removal 4-45 spare part number 3-3, 3-12 Rubber Kit, spare part number 3-6 - HP G72-257CL | Compaq Presario CQ72 Notebook PC and HP G72 Notebook PC - Mainten - Page 132
compartment cover removal 4-14 wireless module product description 1-2 wireless module compartment cover illustration 3-9 spare part number 3-9 WLAN modules removal 4-14 workstation guidelines 4-3 Index-4 Maintenance and Service Guide
Compaq Presario CQ72 Notebook PC
and HP G72 Notebook PC
Maintenance and Service Guide
Document Part Number: 597891-001
May 2010
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; and performing
computer disassembly procedures.