HP G42-247SB Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten
HP G42-247SB Manual
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- HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 1
PC and HP G42 Notebook PC Maintenance and Service Guide SUMMARY 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 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 2
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 G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 3
guide to include HP G42 Notebook PC and Compaq CQ42 Notebook PC information only. ● Added newly supported hard drives on page 37, Hard drive on page 53. ● Added newly supported memory modules to spare parts System board on page 83. ● Added newly supported wireless devices to spare parts listing in the - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 4
iv MSG revision history ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 5
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 optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 6
vi Safety warning notice ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 7
Miscellaneous parts ...36 Sequential part number listing ...37 4 Removal and replacement procedures ...45 Preliminary replacement requirements 45 Tools required ...45 Service considerations ...45 Plastic parts ...45 Cables and connectors 46 Drive handling 46 Grounding guidelines ...47 ENWW vii - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 8
transporting guidelines 48 Workstation guidelines 48 Equipment guidelines 49 Component replacement procedures 50 Serial number ...50 Computer feet ...51 Battery ...52 Hard drive ...53 Optical drive ...56 WLAN module ...58 Memory module ...61 Keyboard ...63 Top cover ...65 Speaker assembly ...68 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 9
menu 105 System Configuration menu 106 6 Specifications ...109 Computer specifications ...109 35.6-cm (14.0-in) display specifications 110 Hard drive specifications ...111 DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications 112 Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DL - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 10
Requirements for specific countries or regions 130 10 Recycling ...131 Battery ...131 Display ...131 Index ...137 x ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 11
Product Name Processors Compaq Presario CQ42 Notebook PC HP G42 Notebook PC Intel® Arrandale™ i7-620M, 2.66-GHz, SC 3M i5-480M processor 2.66-GHz 3MB 35W Intel Pentium™ Discrete √ HP G42 UMA √ Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA Models - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 12
Category Description HP G42 Chipset Graphics Discrete DC T4300, 2.1-GHz, 800-MHz FSB, 1-MB L2 cache shared video memory (memory size is dynamic change): ● Up to 251 MB on computers with 1024 MB of system memory ● Up to 358 MB on computers with more than 2048 MB of system memory HP G42 UMA - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 13
to 1309 MB for computers with more than 3072 MB of system memory ● Up to 797 MB for computers with more than 2048 MB system memory ● Up to 285 MB for computers with more than 1024 MB of system memory HP G42 UMA Compaq Presario CQ42 Discrete Compaq Presario CQ42 Compaq Presario CQ42 UMA - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 14
for BD or √ HD-DVD playback with HD decoder and DX10 support Panel 35.6-cm (14.0-in) √ HD LED BrightView (1366 x 768) 16:9 wide aspect √ ratio Memory 2 SODIMM slots √ HP G42 UMA Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA Models - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 15
Category Description HP G42 Hard drives Customeraccessible and upgradable Supports up to 8 GB of system memory DDR3, 1066-MHz, dual-channel memory (DDR3 1333 MHz can be downgraded to DDR3 1066 MHz) DDR3, 800-MHz, dual-channel memory (DDR3 1333 MHz can be downgraded to DDR3 800 MHz) Supports the - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 16
● DVD±R/RW SuperMulti DL Drive Diskette drive Supports external USB drive only Camera VGA camera Fixed (no tilt) 640 × 480 by 24 frames per second Microphone One microphone, analog Audio HD audio Supports Microsoft Premium requirements Discrete √ √ √ HP G42 UMA Compaq Presario - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 17
Category Description HP G42 Altec Lansing speakers Modem Support for optional (select models high-speed 56k only) 2.1+EDR Adapter Realtek RTL8191SE 802.11b/g/n 1x1 WiFi Adapter Discrete √ √ √ √ HP G42 UMA √ √ Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq Presario CQ42 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 18
Category Description HP G42 Discrete Realtek RTL8191SE √ 802.11b/g/n 1x1 WiFi Adapter plus Broadcom 2070 Bluetooth 2.1+EDR Adapter External 5-in-1 Digital Media √ media card Slot; supports SD, (select models MMC, MS, Mspro, only ) xD Single port √ configured as either HDMI or 5- - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 19
(32 & 64 bit) Windows 7 Home Basic (32 & 64 bit) Free DOS Serviceability End-user replaceable parts: AC adapter Battery (system) Hard drive Memory module Optical drive Mini-card device Discrete √ √ √ √ √ √ HP G42 UMA √ √ Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 20
10 Chapter 1 Product description ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 21
2 External component identification Identifying the hardware Components included with the computer may vary by region and model. The illustrations in this chapter identify the standard features on most computer models. To see a list of hardware installed in the computer, follow these steps: 1. - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 22
up or down inside the right edge of the TouchPad. For more information about TouchPad features, refer to" Using the TouchPad" section later in this guide. 12 Chapter 2 External component identification ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 23
Lights Component (1) TouchPad light (2) Caps lock light (3) Power light (4) Wireless light Description ● On: The TouchPad is disabled. ● Off: The TouchPad is enabled. On: Caps lock is on. ● On: The computer is on. ● Blinking: The computer is in the Sleep state. ● Off: The computer is off or - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 24
Button and speakers Component (1) Speakers (2) (2) Power button Description Produce sound. ● When the computer is off, press the button to turn on the computer. ● When the computer is on, press the button briefly to initiate Sleep. ● When the computer is in the Sleep state, briefly press the - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 25
Keys Component (1) esc key (2) fn key (3) Windows logo key (4) Windows applications key (5) Navigation keys (6) Action keys Description Displays system information when pressed in combination with the fn key. Displays system information when pressed in combination with the esc key. - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 26
Display Component (1) Internal microphone (2) Integrated webcam (select models only) (3) Integrated webcam light (select models only) Description Records sound. Records audio and video and captures still photographs. On: The integrated webcam is in use. 16 Chapter 2 External component - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 27
Description Reads and writes to optical discs. Blinking: The optical drive is being accessed. Connects an optional USB device. Connects a modem cable. ● White: The computer is connected to external power and the battery is fully charged. ● Blinking white: The computer is in the Sleep state. ● Amber - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 28
, 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) Memory Card ● xD-Picture Card (XD) On: The hard drive is in use. 18 Chapter 2 External component - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 29
agency that regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support through Help and Support. Holds the hard drive. ENWW Bottom components 19 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 30
, 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. 20 Chapter 2 External component identification ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 31
Additional hardware components Component (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 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 32
22 Chapter 2 External component identification ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 33
3 Illustrated parts catalog Serial number location When ordering parts or requesting information, provide the computer serial number and model number located in the battery bay of the computer. ENWW Serial number location 23 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 34
Computer major components Item (1) Description 35.6 cm (14-in), WXGA, BrightView display assembly NOTE: See Display assembly components on page 31 for more display assembly internal component spare part information. ● For use with integrated microphone and webcam; Presario, matte black Spare part - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 35
integrated microphone and webcam; HP, velvet red (for models Memory Architecture (UMA) graphics subsystem memory 595832-001 ● For use in models that use discrete graphics subsystem memory 595833-001 ● For use in models that use Universal Memory Architecture (UMA) GL40 graphics subsystem memory - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 36
memory (for model 1.3 only) 634651-001 Thermal pad kit for South Bridge chipset 634433-001 Speaker assembly (includes cable) 600189-001 System boards (includes replacement (9a) Hard drive compartment cover (9b) Wireless/memory module mini-card compartment cover RTC battery (includes mounting - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 37
Item (11) (12) (13) Description Spare part number Memory modules ● 1-GB, PC3-10600, 1333-MHz 598859-001 ● 2-GB, PC3-10600, 1333-MHz 598856-001 ● 4-GB, PC3-10600, 1333-MHz (for models 1.2 and 1.3 only) 599092- - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 38
(BT3.0+HS ready) (for models 1.2 and 1.3 only) Ralink 5390GN 802.11b/g/n 1x1 WiFi Adapter (for model 1.3 only) 630703-001 Processor (includes replacement thermal material) ● Intel Arrandale Core 620M 2.26-GHz (for models 1.0 and 1.1 only) 587259-001 ● Intel Arrandale 540M 2.53-GHz (for models - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 39
1.2 and 1.3 only) 624970-001 Bluetooth module (for models 1.0, 1.1 and 1.3 only) 537921-001 Bluetooth module cable (for models 1.0, 1.1 and 1.3 only) (illustrated with Bluetooth 602822-001 module) Battery ● 6-cell 47-WH (2.2-Ah) LI-ion 593553-001 ENWW Computer major components 29 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 40
Item (21) (22) (23) (24) Description Spare part number ● 6-cell 55-WH (2.55-Ah) LI-ion 593554-001 Hard drive (include hard drive bracket) ● 750-GB 5400 RPM (for model 1.3 only) 634250-001 ● 640-GB 5400 RPM (for models 1.1, 1.2 and 1.3 only) 603785-001 ● 500-GB 7200 RPM 608218- - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 41
Display assembly components Item (1) (2) (3) Description Spare part number Display bezel ● HP, for use with microphone and webcam ● Presario, for use with microphone and webcam 592147-001 592148-001 35.6 cm (14-in) high definition, Brightview, display - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 42
, biscotti ● HP, biscotti ● HP, silver (for models 1.1, 1.2 and 1.3 only) ● HP, white (for model 1.1 only) ● HP, charcoal (for models 1.2 and 1.3 only) ● HP, imperial blue 1.3 only) ● Presario, velvet red (for model 1.2 only) ● HP, velvet red (for models 1.2 and 1.3 only) Webcam module Display screw - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 43
Plastics Kit Item Description Plastics kit (1) Hard drive bay cover (includes captive screws) (2) Wireless/memory module mini-card compartment cover (includes captive screw) Spare part number 600190-001 ENWW Plastics Kit 33 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 44
-001 603785-001 608218-001 600169-001 575598-001 600167-001 Hard drive hardware kit (contains screws, hard drive bracket, not illustrated) 513771-001 Hard drive cable/adapter (included in the cable kit) 610791-001 (2) Optical drives (12.7 mm, SATA, fixed) ● Blu-ray Disc ROM LightScribe with - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 45
, silver (for models 1.1, 1.2 and 1.3 only) ● DVD±RW SuperMulti DL Drive with LightScribe, white (for model 1.1 only) ● DVD±RW SuperMulti DL Drive with LightScribe, charcoal (for models 1.2 and 1.3 only) ● DVD±RW SuperMulti DL Drive with LightScribe, imperial blue (for models 1.2 and 1.3 only) ● DVD - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 46
Miscellaneous parts Description AC adapters ● 90-W Smart AC adapter with power factor correction (PFC) ● 90-W AC adapter with power factor correction (PFC) ● 65-W AC Smart, slim, AC adapter ● 65-W Smart power adapter with power factor correction (PFC) for use in India Power cord, AC, 3 wire, black, - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 47
(for models 1.0 and 1.1 only) Modem module, high-speed 56K modem for use in Australia and New Zealand (for models 1.0 and 1.1 only) Hard drive hardware kit Processor, Intel Celeron processor 900 - 2.2-GHz Bluetooth module without cable (for models 1.0, 1.1 and 1.3 only) Processor, Intel Core 2 Duo - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 48
(14-in) high definition, Brightview 35.6 cm (14-in) WXGA Brightview display assembly for use with integrated microphone and webcam; Presario, matte black Display bezel, HP, for use with microphone and webcam 38 Chapter 3 Illustrated parts catalog ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 49
1x1 WiFi Adapter (for models 1.0, 1.1 and 1.2 only) Battery, 6-cell 47-WH (2.2-Ah) LI-ion Battery, 6-cell 55-WH (2.55Ah) LI-ion Processor, Intel Arrandale replacement thermal material) for use in models with Unified Memory Architecture (UMA) graphics subsystem System board (includes replacement - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 50
(BT3.0+HS ready) (for models 1.2 and later) Hard disk drive, 640-GB 5400 RPM (for models 1.1, 1.2 and 1.3 only) Touchpad board (includes cable) System board (includes replacement thermal material) for use in models with UMA graphics subsystem memory, Intel® GL40 chipset, and HDMI card reader 40 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 51
14-in) WXGA Brightview display assembly for use with integrated microphone and webcam; HP, silver (for models 1.1, 1.2 and 1.3 only) 35.6 cm (14 only) Hard drive 500 GB-7200RPM SATA 2.5IN System board (includes replacement thermal material) for use in models with discrete graphics subsystem memory, - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 52
board (includes replacement thermal material) for use in models with discrete graphics subsystem memory, HM55 HP, imperial blue (for models 1.2 and 1.3 only) Optical drive, DVD±RW SuperMulti DL Drive with LightScribe, charcoal (for models 1.2 and 1.3 only) Optical drive, DVD±RW SuperMulti DL Drive - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 53
639267-001 Description Optical drive, DVD±RW SuperMulti DL Drive with LightScribe, velvet red board (includes replacement thermal material) for use in models with UMA graphics subsystem memory, HM55 WiMAX and webcam; HP, velvet red (for models 1.2 and 1.3 only) Display back cover, HP, velvet red - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 54
44 Chapter 3 Illustrated parts catalog ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 55
to complete the removal and replacement procedures: ● Flat-bladed screwdriver ● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers Service considerations The following sections include only at the points designated in the maintenance instructions. ENWW Preliminary replacement requirements 45 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 56
servicing or replaced. Handle flex cables with extreme care; these cables tear easily. Drive handling CAUTION: Drives are fragile drives from any height onto any surface. After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag. Avoid exposing a hard drive - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 57
V 11,500 V 14,500 V 4,000 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 ENWW Preliminary replacement requirements 47 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 58
electric charges. Workstation guidelines Follow these grounding workstation guidelines: ● Cover the workstation with approved static-shielding material. ● Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. ● Use conductive field service - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 59
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 mats Voltage protection level 1,500 V 7,500 V 5,000 V ENWW Preliminary replacement requirements 49 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 60
, replaced, or loosened when servicing the computer. Make special note of each screw size and location during removal and replacement. Serial number The serial number label, located in the battery bay of the computer, provides important information that you may need when contacting technical support - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 61
Computer feet Description Rubber Feet Kit Spare part number 600184-001 The computer feet are adhesive-backed rubber pads. The feet attach to the base enclosure in the locations illustrated below. ENWW Component replacement procedures 51 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 62
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 battery is seated. The battery release latch automatically locks the battery into place. 52 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 63
the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). Remove the hard drive: 1. Position the computer with the front toward you. 2. Remove the two Phillips PM2.5×5.0 screws (1) that secure the hard drive cover to the computer. ENWW Component replacement procedures 53 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 64
drive cover is included in the plastics kit, spare part number 600190-001. 4. Remove the three Phillips PM2.5×4.0 screws (1) that secure the hard drive to the computer. 5. Use the hard drive bracket to lift the hard drive out (2) of the hard drive compartment. 54 Chapter 4 Removal and replacement - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 65
the hard drive. 8. If it is necessary to replace the hard drive bracket, remove the four Phillips PM3.0×3.0 screws (1) that secure the hard drive bracket to the hard drive 9. Lift the bracket (2) straight up. Reverse this procedure to install the hard drive. ENWW Component replacement procedures - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 66
screw (1) that secures the optical drive to the computer. 3. Insert a flat-bladed screwdriver or similar tool into the access point through the hard drive compartment (2), and then push the drive bracket to the left to release the optical drive. 56 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 67
5. If it is necessary to replace the optical drive bracket, position the optical drive with the optical drive bracket toward you. 6. Remove the two Phillips PM2.0×3.0 screws (1) that secure the optical drive bracket to the optical drive. 7. Remove the optical drive bracket (2). Reverse the above - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 68
-001 Ralink RT3090BC4 802.11b/g/n 1x1 WiFi and Bluetooth 2.1+EDR Combo Adapter (BT3.0+HS ready) (for model 1.2 and 1.3 only) 602992-001 58 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 69
and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the hard drive cover (see Hard drive on page 53). Remove the WLAN module: 1. Turn the computer opposite the slot rises away from the computer.) ENWW Component replacement procedures 59 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 70
regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support through Help and Support. NOTE: WLAN modules are designed with a notch (4) to prevent incorrect - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 71
1.3 only) Spare part number 598856-001 598859-001 599092-001 Before removing the memory module, follow these steps: 1. Shut down the computer. If you are unsure AC adapter from the computer. 4. Remove the battery (see Battery on page 52). Remove the memory module: 1. Turn the computer upside down - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 72
computer.) 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. 62 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 73
outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the hard drive (see Hard drive on page 53) 6. Remove the mini-card compartment cover (see WLAN . 4. Open the computer as far as possible. ENWW Component replacement procedures 63 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 74
is attached and disconnect the keyboard cable (2) from the system board. 8. Remove the keyboard. Reverse this procedure to install the keyboard. 64 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 75
(see Battery on page 52). b. Optical drive (see Optical drive on page 56). c. Keyboard (see Keyboard on page 63). Remove the switch cover: 1. Turn the computer upside down with the front toward you. 2. Remove the four screw covers (1) at the front edge of the computer. ENWW Component replacement - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 76
button board cable (2) is connected and disconnect the cable from the system board. 8. Disconnect the speaker cable (3) from the system board. 66 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 77
the top cover (2) from the base enclosure, and then remove the cover from the computer (3). Reverse this procedure to install the switch cover. ENWW Component replacement procedures 67 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 78
unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Optical drive (see Optical drive on page 56) b. Keyboard (see Keyboard on page 63 to install the speaker assembly. 68 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 79
from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard ( top cover. 3. Remove the power button board (2). ENWW Component replacement procedures 69 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 80
from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see install the TouchPad button board. 70 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 81
from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see modem module cable (2) from the modem module. ENWW Component replacement procedures 71 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 82
modem module, and be sure that the connector on the bottom of the modem module connects firmly into the system board. 72 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 83
from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard ( above procedure to install the Bluetooth module. ENWW Component replacement procedures 73 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 84
from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see procedure to install the USB board. 74 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 85
from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see procedure to install the power connector cable. ENWW Component replacement procedures 75 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 86
microphone and webcam; HP, velvet red (for Battery on page 52). 5. Disconnect the wireless antenna cables from the WLAN module (see WLAN module on page 58). 6. Remove the following components: a. Keyboard (see Keyboard on page 63) b. Optical drive (see Optical drive replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 87
following steps. Failure to support the display assembly can result in damage to the assembly and other components. 7. Remove the four black Phillips PM2.5×6.5 screws (1) that secure the display assembly to the computer. 8. Remove the display assembly (2). ENWW Component replacement procedures 77 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 88
9. If it is necessary to replace any of the display assembly internal components, remove the following screw covers (4). The display bezel is available using spare part number 592147-001 for HP computers, and 592148-001 for Presario computers. 78 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 89
the module. Lift the webcam from the double-sided tape on the display back cover, and remove the webcam. 13. If it is necessary to replace the display panel, remove the eight Phillips PM2.5×5.0 screws (1) that secure the display panel to the display enclosure, and then lift the panel from the - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 90
hinges (2) from the display. The display bracket and hinge set is available using spare part number 600627-001. 17. If it is necessary to replace the wireless antennas and cables, remove the adhesive strip (1) that secures each antenna to the display back cover. 18. Detach the wireless antenna - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 91
back cover, and then remove the webcam cable (2). The webcam cable is included in the display cable kit, spare part number 592151-001, ENWW Component replacement procedures 81 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 92
included in the display cable kit, spare part number 592151-001, Reverse this procedure to reassemble and install the display assembly. 82 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 93
, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● RTC battery (see RTC battery on page 89) ● Memory modules (see Memory module on page 61) ● WLAN module (see WLAN module on page 58) ● Modem module (see Modem module - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 94
4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. WLAN (see WLAN module on page 58) c. Optical drive (see Optical drive on page 56) the system board to the computer. 84 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 95
3. Release the optical drive cable (1) from the system board. 4. Lift the right side of the system board clear the base enclosure, and then remove the system board. 6. If it is necessary to replace the modem module cable, remove the RJ-11 connector (1) from the clip built into the base enclosure. 7. - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 96
the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● Fan/heat sink assembly (see Fan/heat sink assembly on page 91) ● Processor (see Processor on page 94) Reverse the preceding procedure to - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 97
then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. WLAN (see WLAN module on page 58) c. Optical drive (see Optical drive on page 56) d. Keyboard (see Keyboard on page 63 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 98
2. Release the cable from the clips on the base enclosure (2), and then remove the cable (3). 88 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 99
then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. WLAN (see WLAN module on page 58) c. Optical drive (see Optical drive on page 56) d. Keyboard (see Keyboard on page 63 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 100
3. Remove the RTC battery (2). Reverse this procedure to install the RTC battery. 90 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 101
Memory Architecture (UMA) graphics subsystem memory (includes thermal replacement material battery conservation configurations, battery fast charging battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 102
board, and processor spare part kits. The following illustration shows the locations for thermal material on systems with discrete graphics subsystems. 92 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 103
illustration shows the locations for thermal material on systems with UMA graphics subsystems. Reverse this procedure to install the fan/heat sink assembly. ENWW Component replacement procedures 93 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 104
-001 625823-001 625831-001 534419-001 625825-001 625830-001 634692-001 634693-001 635500-001 636636-001 634428-001 94 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 105
from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard ( -half turn counterclockwise until you hear a click. ENWW Component replacement procedures 95 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 106
with the triangle icon (4) embossed on the processor socket when you install the processor. Reverse this procedure to install the processor. 96 Chapter 4 Removal and replacement procedures ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 107
on the computer, select Start > Computer. On models with a secondary hard drive (drive D), the optical drive becomes drive E. The next drive added to the system, such as a new USB drive, will be assigned the next available drive letter. Starting Setup Utility Setup Utility is a ROM-based information - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 108
then press enter. Your change goes into effect immediately. 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 item, use the arrow keys. ● To choose an item in - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 109
Restoring default settings in Setup Utility The following procedure explains how to restore Setup Utility default settings. If Setup Utility is not already running, begin at step 1. If Setup Utility is already running, begin at step 2. 1. Open Setup Utility by turning on or restarting the computer. - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 110
Some of the Setup Utility menu items listed in this chapter may not be supported by your computer. Main menu Select System information To do this ● View about the computer. ● View specification information about the processor, memory size, system BIOS, and keyboard controller version (select models - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 111
Configuration menu Select Language Support Button Sound (select models Memory Test To do this Run a comprehensive self-test on the hard drive. NOTE: On models with two hard drives, this menu option is called the Primary Hard Disk Self Test. Run a comprehensive self-test on a secondary hard drive - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 112
Setup menu items listed in this guide may not be supported by your computer. NOTE: Pointing devices are not supported in Computer Setup. You must use arrow keys to select File > Ignore Changes And Exit. Then follow the instructions on the screen. ● To save your preferences and exit Computer Setup, - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 113
f10. 4. To save your preferences and exit Computer Setup, use the arrow keys to select File > Save Changes And Exit. Then follow the instructions on the screen. Your preferences go into effect when the computer restarts. NOTE: Your password settings and security settings are not changed when you - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 114
the Computer Setup menu items listed in this chapter may not be supported by your computer. File menu Select System information Restore Defaults Ignore specification information for the processor, cache and memory size, and system ROM. Replace the configuration settings in Computer Setup with - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 115
section may not be supported by your computer. hard drive is destroyed permanently. Diagnostics menu Select HDD Self-Test Options Memory Check To do this Run a comprehensive self-test on any hard drive in the system or on any optional MultiBay hard drive. Run a comprehensive check on system memory - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 116
Enable/disable USB legacy support. When enabled, USB legacy support allows the following: ◦ Use of a USB keyboard in Computer Setup even when a your operating system is not running. ◦ Startup from bootable USB devices, including a hard drive, diskette drive, or optical drive connected by a USB port - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 117
Select Built-in device options Port options To do this ● Enable/disable embedded WLAN Device Radio. ● Enable/disable embedded Bluetooth Device Radio. ● Enable/disable Network Interface Controller (NIC) ● Enable/disable LAN/WLAN Switching. ● Enable/disable Wake on LAN. ● Enable/disable the - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 118
108 Chapter 5 Setup Utility ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 119
6 Specifications Computer specifications Dimensions Depth Width Height (front to rear) Weight (lowest weight configuration) Input power Operating voltage Operating current Temperature Operating (not writing to optical disc) 22.8 cm (8.98 in) 34.2 cm (13.46 in) 31.5 to 36.5 cm (1.24 to 1.44 in) < - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 120
Character display Total power consumption Viewing angle 17.6 cm (17.6 cm) 31.1 cm (12.24 in) 35.7 cm (14.06 in) Up to 16.8 million 300:1 (typical) 200 nits (typical) 0.259 × 0.259 mm 1280 × 800; HD: 1366 × 768 RGB vertical stripe LED 80 × 25 4.0 W ±40° horizontal, +120/-40° vertical (typical) 110 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 121
(41°F to 131°F) *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly. NOTE: Certain restrictions and exclusions apply. Contact technical support for details. ENWW Hard drive specifications 111 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 122
DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications Applicable disc Read Write Random access time DVD CD Cache buffer Data transfer rate 24X CD-ROM 8X DVD-ROM 24X CD-R - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 123
Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DL Drive specifications Applicable disc Read Write Random access time BD DVD CD Cache buffer Data transfer rate 24X CD- 4,500 KB/sec 4,500 KB/sec Multiword DMA Mode ENWW Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DL Drive specifications 113 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 124
access (DMA) channels, input/output (I/O) ports, interrupt request (IRQ) lines, and memory addresses. If two devices require the same resource and create a device conflict, you can manually change the resource settings in Device Manager to be sure each setting is unique. CAUTION: Improperly changing - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 125
Recovering a program or driver (Recovery Manager software feature). This feature helps you reinstall a program or driver without performing a In the event of a hard drive failure, you cannot use your computer to access the Disaster Recovery utility. Therefore, HP recommends that you download the - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 126
HP Recovery Manager NOTE: For detailed information, perform a search for these topics in Help and Support. Creating recovery discs HP the HP Web site. Note the following guidelines before creating recovery discs: NOTE: The external hard drive must instructions. 116 Chapter 7 Backup and recovery ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 127
Open a word-processing document, and then select Edit > Paste. 4. Save the document. ● You can back up your information to an optional external hard drive, a network drive, or discs. ● When backing up to discs, use any of the following types of discs (purchased separately): CD-R, CD-RW, DVD+R, DVD - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 128
1. Select Start > All Programs > Maintenance > Backup and Restore. 2. Follow the on-screen instructions to set up and create a backup. NOTE: Windows® includes the User Account Control feature to Windows settings. Refer to Help and Support for more information. 118 Chapter 7 Backup and recovery ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 129
allows you to save and name a snapshot of your hard drive at a specific point in time. You can then instructions. Performing a recovery NOTE: You can recover only files that you have previously backed up. HP recommends that you use HP Recovery Manager to create a set of recovery discs (entire drive - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 130
first recovery disc into the optical drive and restart the computer. 3. Follow the on-screen instructions. Recovering from the dedicated recovery partition some models, you can perform a recovery from the partition on the hard drive, accessed by pressing either the Start button or f11. This restores - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 131
reinstalls the original operating system and HP programs and drivers that were installed at the factory. Software, drivers, and updates not installed by HP must be manually reinstalled. Personal files must be restored from a backup. To recover the original hard drive image using f11, follow these - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 132
122 Chapter 7 Backup and recovery ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 133
8 Connector pin assignments Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Audio-in (microphone) Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground ENWW Audio-out (headphone) 123 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - 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 124 Chapter 8 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 135
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 ENWW Signal Transmit + Transmit Receive + Unused Unused Receive Unused Unused RJ-11 (modem) 125 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 136
HDMI Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Signal TMDS data 2+ TMDS data 2 shield TMDS data 2- TMDS data 1+ TMDS data 1shield TMDS data 1- TMDS data 0+ TMDS data 0 shield TMDS data 0- TMDS clock+ TMDS clock shield TMDS clock- CEC No connect DDC clock DDC data Ground +5V power Hot - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 137
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground ENWW Universal Serial Bus 127 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 138
128 Chapter 8 Connector pin assignments ENWW - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 139
9 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 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 140
Requirements for specific countries or regions Country/region Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA 2 Denmark DEMKO 1 Finland FIMKO 1 France UTE 1 Germany VDE 1 Italy IMQ 1 Japan METI 3 The Netherlands - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 141
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 .eiae.org. This section provides disassembly instructions for the display assembly. The display - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 142
Perform the following steps to disassemble the display assembly: 1. Remove all screw covers (1) and screws (2) that secure the display bezel to the display assembly. 2. Lift up and out on the left and right inside edges (1) and the top and bottom inside edges (2) of the display bezel until the bezel - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 143
4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2). 5. Remove all screws (1) that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside- - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 144
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. 134 Chapter - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 145
15. Remove the backlight cables (1) from the clip (2) in the display panel. 16. Turn the display panel upside-down. WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury. 17. Remove the - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 146
18. Remove the backlight from the backlight frame. 19. Disconnect the display panel 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 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 147
117 base enclosure, spare part number 29 battery removal 52 spare part numbers 29, 52 battery bay, identifying 19 battery release latch, identifying 19 battery, identifying 21 bays battery 19 hard drive 19 BD/DVD±R/RW Super Multi Double-Layer Combo Drive removal 56 bezel illustrated 31 spare part - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 148
latch, battery release 19 legacy support, USB 102, 106 light power 13 lights caps lock 13 Digital Media Slot 18 optical drive 17 webcam 16 wireless 13 M Main menu 100 mass storage devices, spare part numbers 34 memory module product description 4 removal 61 spare part numbers 27, 61 memory module - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 149
8 graphics 2 hard drives 5 keyboard 9 memory module 4 microphone 6 modem module 7 operating system 9 optical drives 6 pointing devices 9 ports 8 power requirements 9 processors 1 product name 1 security 9 serviceability 9 wireless 7 product name 1 R recovering a program or driver 115 recovering - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 150
Drive with LightScribe 112 hard drive 111 optical drive 112, 113 system resources 114 starting Setup Utility 97 static-shielding materials 49 stringent security 105 supported 81 wireless light 13 wireless, product description 7 wireless/memory module compartment cover removal 59 spare part number 59 - HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 151
- HP G42-247SB | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 152
Compaq Presario CQ42 Notebook
PC and HP G42 Notebook PC
Maintenance and Service Guide
SUMMARY
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.