HP G42-415DX Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten
HP G42-415DX Manual
View all HP G42-415DX manuals
Add to My Manuals
Save this manual to your list of manuals |
HP G42-415DX manual content summary:
- HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 1
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 - HP G42-415DX | 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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 3
this guide to include HP G42 Notebook PC and Compaq CQ42 Notebook PC information only. ● Added newly supported memory modules number listing on page 39, System board on page 81 ● Added newly supported power cord to spare parts listings in the following locations: Miscellaneous Parts, Sequential part - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 4
iv MSG revision history ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 5
, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 6
vi Safety warning notice ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 7
Miscellaneous parts ...38 Sequential part number listing ...39 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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 8
board ...72 Power connector cable ...73 Display assembly ...74 System board ...81 Optical drive SATA cable and connector 84 RTC battery ...86 Fan/heat sink assembly ...88 Processor ...91 5 Setup Utility ...95 Computer Setup in Windows 7 ...95 Starting Setup Utility - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 9
headphone) ...121 Audio-in (microphone) ...121 External monitor ...122 RJ-11 (modem) ...123 RJ-45 (network) ...123 HDMI ...124 Universal Serial Bus ...125 9 Power cord set requirements ...127 Requirements for all countries or regions 127 Requirements for specific countries or regions 128 ENWW ix - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 10
10 Recycling ...129 Battery ...129 Display ...129 Index ...135 x ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 11
1 Product description Category Description HP G42 Discrete Product Name Compaq Presario CQ42 Notebook PC HP G42 Notebook √ PC Processors Intel® Arrandale™ i7-620M, 2.66-GHz, √ SC turbo, 4-MB L3 cache i5-540M, 2.53-GHz, √ SC turbo, 3-MB L3 cache i5-520M, 2.4-GHz, SC √ - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 12
Category Description HP G42 Discrete DC T3000, 1.8-GHz 800-MHz FSB, 1-MB L2 cache AMD® Phenom™ Processor N570 2.7 GHz 2M √ 35W DC P540 DC 2.4 GHz √ L2 cache 25W HP G42 UMA Compaq Presario CQ42 Discrete Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA Models 150-199 100-149 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 13
V160 2.4 GHz 25W Champlain V120 √ 512K L2 cache AMD Sempron™ II Processor N120 DDR3-1066 √ Mhz Intel® HM55 Express √ Intel® GL40 Southbridge: ICH9m AMD HP G42 UMA Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA Models 150-199 100-149 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 14
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 √ √ √ Compaq Presario CQ42 Discrete Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA Models 150-199 100-149 √ √ √ √ √ 4 Chapter 1 Product description - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 15
x 16 Graphics ● ATi Mobility Radeon Park-LP S3 package (ATI Mobility Radeon™ HD5430 with 512-MB of dedicated video memory (64MB×16 DDR3, 4 pcs, 800-MHz)) HP G42 UMA Compaq Presario CQ42 Discrete Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA Models 150-199 100-149 √ √ ENWW 5 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 16
HP G42 Panel Memory Discrete Switchable Discrete √ Graphics ● ATi Robson XT (ATI Mobility Radeon™ HD6370) with 512MB of dedicated memory (64Mx16 DDR3 800 MHz x 4 PCs) ● ATi Robson XT (ATI Mobility Radeon™ HD6370) with 1GB of dedicated memory (128Mx16 DDR3 800 MHz x 4 PCs) Support - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 17
(removal of one √ drives screw required) SATA √ 12.7-mm (0.50-in) √ fixed tray load Supports the following drives: ● Blu-ray ROM √ with LightScribe DVD±R/RW SuperMulti DL Drive HP G42 UMA √ √ Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 18
Category Description HP G42 Discrete ● Blu-ray ROM √ DVD±R/RW SuperMulti DL Drive ● DVD±R/RW √ SuperMulti DL Drive with LightScribe ● DVD±R/RW √ SuperMulti DL Drive Diskette Supports external √ drive USB drive only Camera VGA camera √ Fixed (no tilt) √ 640 × 480 by 24 √ - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 19
Media Slot Supports mini √ versions of SD, MMC, and MS Duo with adapter (adapter not included) Ports VGA (Dsub 15-pin) √ supporting 1600 x v1.3 supporting √ 1080p with HDCP key Single port configured √ for either HDMI or 5- in-1 card reader USB 2.0 (3) √ ENWW HP G42 UMA √ - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 20
Power 6-cell (47-Wh) 2.20- √ requirement Ah Li-ion battery s 65-W AC adapter with √ Smart-Pin DC connector 90-W AC adapter with -user y replaceable parts: AC adapter √ Battery (system) √ Hard drive √ 10 Chapter 1 Product description HP G42 UMA Compaq Presario CQ42 Discrete √ - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 21
Category Description Memory module Optical drive Mini-card device HP G42 Discrete √ √ √ HP G42 UMA √ √ √ Compaq Presario CQ42 Discrete √ √ √ Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA Models 150-199 100-149 √ √ √ √ √ √ ENWW 11 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 22
12 Chapter 1 Product description ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 23
chapter identify the standard features on most computer models. To see a list of hardware installed in the computer, follow these steps: 1. Select Start > My Computer. 2. In the left pane of the System Tasks window, select View system information. 3. Select Hardware tab > Device Manager. You can - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 24
is active, the light is off. Moves the pointer and selects or activates items on the screen. Functions like the left button on an external mouse. Functions like the right button on an external to" Using the TouchPad" section later in this guide. 14 Chapter 2 External component identification ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 25
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: - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 26
Button and speakers Component (1) Speakers (2) (2) Power button Description Produce sound. ● When the computer is off, the power button for at least 5 seconds to turn off the computer. To learn more about your power settings, select Start > Control Panel > System and Security > Power Options. - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 27
information when pressed in combination with the fn key. Displays system information when pressed in combination with the esc key. Displays the Windows Start menu. Displays a shortcut menu for items beneath the pointer. Navigate using the Up, Down, Left and Right arrow keys. Execute frequently used - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 28
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. 18 Chapter 2 External component - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 29
-side components Component (1) Optical drive (2) Optical drive light (3) USB port (4) RJ-11 (modem) jack (select models only) (5) AC adapter/power/battery light (6) Power connector Description Reads and writes to optical discs. Blinking: The optical drive is being accessed. Connects an - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 30
NOTE: The computer fan starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on when connected to optional powered stereo speakers, headphones, earbuds, a headset, or television audio. Supports the following optional digital card - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 31
Holds the battery. Releases the battery from the battery bay. Enable airflow to cool internal components. NOTE: The computer fan starts up automatically to computer functionality, and then contact technical support through Help and Support. Holds the hard drive. ENWW Bottom components 21 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 32
, 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. 22 Chapter 2 External component identification ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 33
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 the computer when the computer is not plugged into external - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 34
24 Chapter 2 External component identification ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 35
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 25 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 36
: See Display assembly components on page 33 for more display assembly internal component spare part information. ● For use with integrated microphone and webcam; Presario, matte black Spare part number 592146-001 26 Chapter 3 Illustrated parts catalog ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 37
HP, biscotti 600163-001 ● For use with integrated microphone and webcam; HP, silver 606155-001 ● For use with integrated microphone and webcam; HP ● Matte black color 600181 Power button board (includes cable) 600188-001 Touchpad button board (includes cable) 604603-001 Thermal module - fan - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 38
compartment cover (9b) Wireless/memory module mini-card compartment cover RTC battery (includes mounting adhesive) 602745-001 Memory modules ● 2-MB, PC3 1.0 only) 510100-011 WLAN module Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter ● For use in Canada, the Cayman Islands, Guam, Puerto Rico, - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 39
, Uganda, United Arab Emirates ,United Kingdom, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, and Zimbabwe Realtek RTL8191SE 802.11b/g/n 1x1 WiFi Adapter (for models 1.0 and 1.1 only) 593533-001 SPS-WLAN BGN + BT HMC Combo Matador 600370-001 SPS-WLAN 802.11 bgn Shiraz HMC - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 40
Item Description Spare part number ● Advanced Micro Devices (AMD) processor DC N330 2.3GHz 1M L2 35W (for model 594164-001 1.0 only) ● Advanced Micro Devices (AMD) processor DC QC P920 1.6Ghz 2M L2 25W (for models 1.0 and 1.1 only) 594170-001 ● Advanced Micro Devices (AMD) processor DC N530 DC - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 41
-001 Power connector cable (includes power connector black 617027-001 ● For use without HDMI card reader, matte black 617028-001 ● For use with HDMI card reader, charcoal (for models 1.1 and 1.2 only) 622579-001 Battery only) 600167-001 Hard drive cable/adapter (included with the cable kit; - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 42
Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, charcoal (for model 1.1 only) ● DVD±RW SuperMulti DL Drive with LightScribe, matte black ● DVD±RW SuperMulti DL Drive with LightScribe, biscotti ● DVD±RW SuperMulti DL Drive with LightScribe, silver ● DVD±RW SuperMulti DL Drive with - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 43
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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 44
Item (6) (7) Description (4) Webcam cable (5) Antennas and cables Display back cover ● Presario, matte black ● Presario, biscotti ● HP, biscotti ● HP, silver ● HP, white (for model 1.0 only) ● HP, charcoal (for models 1.1 and 1.2 only) Webcam module Display screw kit (not illustrated; includes - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 45
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 35 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 46
screws, hard drive bracket, not illustrated) 513771-001 Hard drive cable/adapter (included in the cable kit) 610791-001 (2) Optical drives (12.7 Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, matte black 600173-001 ● Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 47
Item Description ● DVD±RW SuperMulti DL Drive with LightScribe, white (for model 1.0 only) ● DVD±RW SuperMulti DL Drive with LightScribe, charcoal (for models 1.1 and 1.2 only) Spare part number 608120-001 622575-001 ENWW Mass storage devices 37 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 48
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, 1.83-m ● For - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 49
Power cord, AC, 3-pin, black,1.83-m, for use in Taiwan Power cord, AC, 3-pin, black,1.83-m, for use in South Korea Power cord, AC, 3-pin, black,1.83-m, for use in Argentina Power cord, AC, 3-pin, black 7200 RPM Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter for use in Canada, the Cayman Islands, Guam - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 50
use with integrated microphone and webcam; Presario, matte black Display bezel, HP, for use with microphone and webcam Display bezel, only) Realtek RTL8191SE 802.11b/g/n 1x1 WiFi Adapter (for models 1.0 and 1.1 only) Battery, 6-cell 47-WH (2.2-Ah) LI-ion Battery, 6-cell 55-WH (2.55Ah) LI-ion SPS - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 51
HP, biscotti Webcam module Hard disk drive, 160-GB 7200 RPM (for models 1.0 and 1.1 only) Hard disk drive, 320-GB 7200 RPM Optical drive, DVD±RW SuperMulti DL Drive with LightScribe, matte black bracket (with hinges) Power connector with cable USB board with cable RTC battery SPS-WLAN BGN (1x1 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 52
in system boards with HD545V DSC CR (for model 1.0 only) 65-W Smart AC adapter 90-W AC adapter with power factor correction (PFC) 90-W AC adapter RC/V EM, with power factor correction (PFC) 65-W AC adapter with power factor correction (PFC) for use in India Processor Advanced Micro Devices (AMD) DC - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 53
cable and ODD cable), matte black Thermal module (includes fan and heat sink) for use in models that use DSC HD545v graphics subsystem memory (for model 1.0 only) 35.6 cm (14-in) WXGA Brightview display assembly for use with integrated microphone and webcam; HP, charcoal (for models 1.1 and 1.2 only - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 54
Spare part number 635495-001 635496-001 636634-001 636635-001 Description AMD Phenom II processor N870 2.3Ghz 1.5 (for model 1.2 only) AMD Phenom II processor N970 2.2Ghz 2M (for model 1.2 only) AMD Champlain SC processor V160 2.4Ghz 25W (for model 1.2 only) AMD Athlon II discrete processor P360 2. - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 55
● Flat-bladed screwdriver ● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers Service considerations The following sections include some of the considerations that you must keep only at the points designated in the maintenance instructions. ENWW Preliminary replacement requirements 45 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 56
Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer. Cables must - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 57
circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions. A discharge of normally for a while, then degrade in the internal layers, reducing its life expectancy. CAUTION: To prevent damage to the computer when you are removing - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 58
surface and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When fixtures Avoid contact with pins, leads, or circuitry. ● Turn off power and input signals before inserting or removing connectors or test equipment. 48 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 59
with ground cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes, or boxes ● Metal tote boxes ● Electrostatic voltage levels and - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 60
in 12 different sizes, that must be removed, replaced, or loosened when servicing the computer. Make special note of each screw size and location during located in the battery bay of the computer, provides important information that you may need when contacting technical support. (1) Product - HP G42-415DX | 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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 62
. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery: 1. Turn the computer upside down on a flat surface. 2. Slide the - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 63
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). Remove the hard drive: 1. Position the computer - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 64
3. Lift the left side of the hard drive cover (2), swing it forward, and remove the cover (3). The hard 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 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 65
6. Disconnect the hard drive cable from the system board. 7. Remove 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 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 66
Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, matte black 600173-001 Blu-ray Disc ROM LightScribe with SuperMulti DVD power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 67
4. Remove the optical drive (3). 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 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 68
2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the hard drive cover (see Hard - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 69
replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support through Help and Support. NOTE: WLAN modules are designed with a notch (4) to prevent incorrect insertion into the WLAN module slot. Reverse this procedure - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 70
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). Remove the memory module: 1. Turn the computer - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 71
3. Lift cover off the computer. The mini-card compartment cover is included in the plastics kit, spare part number 600190-001. NOTE: Small tabs hold the cover in place. Firmly pull up on the cover to release the tabs. 4. Spread the retaining tabs (1) on each side of the memory module slot to release - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 72
2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the hard drive (see Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 73
5. Release the top edge of the keyboard by lifting it up to disengage the keyboard from the tabs on the top cover (1). 6. Slide the top edge of the keyboard back (2) until it rests against the display. 7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 74
Touchpad and bracket, button board, and cable), matte black Top cover, bicotti Top cover, silver Top cover, power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the following components: a. Battery (see Battery - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 75
3. Remove the five Phillips PM2.5×6.5 screws (2), the two Phillips PM2.5x4.0 screws (3), and the four Phillips PM2.5x3.0 screws (4) that secure the top cover to the base enclosure. 4. Turn the computer display-side up with the front toward you. 5. Open the computer as far as possible. 6. Release the - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 76
9. Release the ZIF connector to which the power button board cable (4) is connector and disconnect the cable from the system board. 10. Remove the Phillips PM2.5×6.5 screw (1) from the top cover, disengage the - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 77
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Optical drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 78
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 79
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 80
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 81
4. Lift up on the front of the modem module (3) to disconnect it from the system board. 5. Remove the modem module. Reverse the above procedure to install the modem module, and be sure that the connector on the bottom of the modem module connects firmly into the system board. ENWW Component - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 82
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 83
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 84
and webcam; Presario, matte black 35.6 cm (14-in) use with integrated microphone and webcam; HP, charcoal (for models 1.1 and power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 85
the display assembly when removing the display screws in the 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 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 86
the bezel disengages from the display back cover. 11. Remove the display bezel (4). The display bezel is available using spare part number 592147-001 for HP computers, and 592148-001 for Presario computers. 76 Chapter 4 Removal and replacement procedures ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 87
12. If it is necessary to replace the webcam module, disconnect the webcam cable (1) from 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 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 88
The display cable is available in the display cable kit, spare part number 592151-001. 15. If it is necessary to replace the display bracket and hinges, remove the Phillips PM2.0×3.0 screws (1) that secure each bracket to the display. 16. Remove the display hinges (2) from the display. The display - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 89
20. Remove the wireless antennas and cables (4) from the display enclosure. The wireless antennas and cables are included in the display cable kit, spare part number 592151-001. 21. If it is necessary to remove the webcam cable, remove the cable from the adhesive strips (1) along the cable path on - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 90
22. If it is necessary to remove the microphone, release the microphone cable from the adhesive strips (1) along the cable path on the display back cover, remove the microphone from the clips on the display back cover (2), and then remove the microphone and microphone cable (3). The microphone and - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 91
from the defective system board and installed on the replacement system board: ● RTC battery (see RTC battery on page 86) ● Memory modules (see Memory module on page 60) the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 92
4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive ( cover on page 64) Remove the following cables from the system board if still connected: ● Power connector cable (see Power connector cable on page 73) ● USB board cable (see USB board on page 72) 1. - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 93
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 88) ● Processor (see Processor on page 91) Reverse the preceding procedure to install the system board - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 94
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 95
2. Release the cable from the clips on the base enclosure (2), and then remove the cable (3). ENWW Component replacement procedures 85 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 96
all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 52). 5. Remove the following components: a. Hard drive - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 97
3. Remove the RTC battery (2). Reverse this procedure to install the RTC battery. ENWW Component replacement procedures 87 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 98
of the computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 99
/heat sink assembly (3). The thermal material must be thoroughly cleaned from the surface of the fan/heat sink assembly (1), (3) and the processor (2) and video components (4) each time the fan/heat sink assembly is removed. Thermal pads and thermal paste must be installed on all surfaces before the - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 100
/heat sink assembly (1) and (3), and the processor component (2), each time the fan/heat sink assembly is removed. Thermal pads and thermal paste must be installed on all surfaces before the fan/heat sink assembly is reinstalled. The following illustration shows the locations for thermal material on - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 101
Processor NOTE: All processor spare part kits include thermal material. Description Spare part number Processor Advanced Micro Devices (AMD) DC P340 2.2GHz 25W DDR3-1066 Mhz (for models 1.1 and 1.2 only) 616343-001 Processor Advanced Micro Devices (AMD) DC N350 2.4GHz 35W DDR3-1066 Mhz (for - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 102
power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery System board (see System board on page 81) h. Fan/heat sink assembly (see Fan/heat sink assembly on page 88) Remove the processor: 1. - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 103
2. Lift the processor (2) straight up and remove it. NOTE: The gold triangle (3) on the processor must be aligned with the triangle icon (4) embossed on the processor socket when you install the processor. Reverse this procedure to install the processor. ENWW Component replacement procedures 93 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 104
94 Chapter 4 Removal and replacement procedures ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 105
new USB drive, will be assigned the next available drive letter. Starting Setup Utility Setup Utility is a ROM-based information and customization utility key for Startup Menu" message is displayed in the lower-left corner of the screen, press f10. - or - 1. Open Setup Utility by turning on or - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 106
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 key for Startup Menu" message is displayed in the lower-left corner of the screen, press f10. - or - Open Setup Utility by turning on or restarting - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 107
turning on or restarting the computer. While the "Press the ESC key for Startup Menu" message is displayed in the lower-left corner of the screen, press esc. When the Startup Menu is displayed, press f10. 2. Use the arrow keys to select Exit > Load Setup Defaults, and then press enter. 3. When - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 108
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 controller version (select models only). Security menu Select Administrator password Power-On Password To do this Enter, change, or delete an - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 109
System Configuration menu Select Language Support Button Sound (select models only) Virtualization Technology (select models only) Processor C6 State (select models only) LAN Power Saving (select models only) Card Reader/1394 Power Saving (select models only) Fan Always On Action Keys Mode Boot - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 110
Starting Computer Setup Computer Setup is a preinstalled, ROM-based utility that can be used even when the operating system is not working or will not load. NOTE: Some of the Computer Setup menu items listed in this guide may not be supported . Then follow the instructions on the screen. ● To save - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 111
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 restore the - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 112
this section provide an overview of Computer Setup options. NOTE: Some of the Computer Setup menu items listed in this chapter may not be supported by your computer. File menu Select System information Restore Defaults Ignore Changes And Exit Save Changes And Exit To do this ● View identification - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 113
in this section may not be supported by your computer. Select Setup Password Power-On Password Password Options DriveLock Passwords System IDs Disk Sanitizer To do this Enter, change, or delete a setup password. Enter, change, or delete a power-on password. ● Enable/disable stringent security - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 114
starting up. ● Enable/disable CD-ROM boot. ● Enable/disable floppy boot. ● Enable/disable internal network adapter device: Notebook hard drive support. When enabled, USB legacy support fan always on while connected to an AC outlet. ● Enable/disable data execution prevention. ● Enable/disable LAN power - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 115
Select Built-in device options Port options To do this ● Enable/disable embedded WLAN Device Radio. ● Enable/disable Network Interface Controller (NIC) ● Enable/disable LAN/WLAN Switching. ● Enable/disable Wake on LAN. ● Enable/disable the integrated camera (webcam) ● Enable/disable USB port. ● - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 116
106 Chapter 5 Setup Utility ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 117
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 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 118
(14.0-in) display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration Backlight Character display Total power consumption Viewing angle 17.6 cm (17.6 cm) 31.1 cm (12.24 in) 35.7 cm (14.06 in) Up to 16.8 million 300 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 119
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 109 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 120
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 16X CD-RW 8X DVD+R 4X DVD+RW 8X DVD-R 4X DVD-RW 2.4X DVD+R(9) 5X DVD-RAM Transfer mode CD-DA, CD+(E)G, CD-MIDI, - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 121
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-ROM 8X DVD-ROM 4X BD 24X CD-R 16X CD-RW 8X DVD+R 4X DVD+RW 8X DVD-R 4X DVD-RW 2.4X DVD+R(9) 5X DVD-RAM 1X BD-ROM 1X BD-R read 1X BD - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 122
require the same resource and create a device conflict, you can manually change the resource settings in Device Manager to be sure each type ● Resources by connection To view resource settings in Windows XP: 1. Select Start > My Computer, or double-click My Computer on the desktop. 2. Under System - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 123
a program or driver (Recovery Manager software feature). This feature helps you reinstall a program or driver without performing a recovery partition, select Start, right-click Computer, click Manage, and then click Disk Management. If the partition is present, an HP Recovery drive is listed - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 124
HP Recovery Manager NOTE: For detailed information, perform a search for these topics in Help and Support. Creating recovery discs HP must be connected to AC power during this process. ● Only Start > All Programs > Recovery Manager > Recovery Disk Creation. 2. Follow the on-screen instructions - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 125
and back up this folder periodically. ● Back up templates stored in their associated programs. ● Save customized settings in a window, toolbar, or menu bar by taking a screen shot of your settings. The screen shot can be a time-saver if you have to reset your preferences. To copy the - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 126
computer is connected to AC power before you start the backup process. NOTE: The backup process may take over an hour, depending on file size and the speed of the computer. 1. Select Start > All Programs > Maintenance > Backup and Restore. 2. Follow the on-screen instructions to set up and create - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 127
3. Click the System Protection tab. 4. Click System Restore. 5. Follow the on-screen 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 backup) as soon - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 128
the optical drive and restart the computer. 3. Follow the on-screen instructions. Recovering from the dedicated recovery partition (select models only) NOTE from the partition on the hard drive, accessed by pressing either the Start button or f11. This restores the computer to its factory condition. - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 129
HP programs and drivers that were installed at the factory. Software, drivers, and updates not installed by HP must be manually for recovery" message is displayed on the screen. 3. Follow the on-screen instructions. NOTE: If you are unable to boot (start up) your computer from the primary operating - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 130
120 Chapter 7 Backup and recovery ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 131
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) 121 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 132
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 122 Chapter 8 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 133
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) 123 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 134
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 plug detect Shell 124 Chapter 8 Connector pin assignments ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 135
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground ENWW Universal Serial Bus 125 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 136
126 Chapter 8 Connector pin assignments ENWW - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 137
must have a minimum current capacity of 10 amps and a nominal voltage rating of 125 or 250 V AC, as required by each country or region's power system. ● The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC 320 Standard Sheet C13 connector for mating with the appliance - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 138
for evaluation in the country or region where it will be used. 5. The flexible cord must be Type VCTF, 3-conductor, 0.75-mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country or region - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 139
life, do not dispose of the battery in general household waste. Follow the local laws and regulations in your area for computer battery HP product contains mercury in the backlight in the display assembly that might require special handling at end-of-life general disassembly instructions. Specific - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 140
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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 141
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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 142
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. 132 Chapter - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 143
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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 144
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 G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 145
Power Saving 99 A AC adapter identifying 23 AC adapter battery removal 52 spare part numbers 31, 52 battery bay, identifying 21 battery release latch, identifying 21 battery, identifying 23 bays battery USB) 125 connector, power 19 connectors, service considerations 46 cord, power 23 D Diagnostics - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 146
assignments 122 external monitor port, identifying 20 F f11 118 fan always on 99 fan/heat sink assembly removal 88 spare part number 27, 88 17 Windows logo 17 L LAN Power Saving 99 language support 99 latch, battery release 21 legacy support, USB 100, 104 light power 15 lights caps lock 15 Digital - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 147
power requirements 10 processors 1 product name 1 security 10 serviceability 10 wireless 8 product name 1 R recovering a program or driver 123 RJ-45 (network) jack, identifying 20 RJ-45 jack, pin assignments 123 RTC battery removal 86 spare part number 28, 86 Rubber Feet Kit, spare part number 51 - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 148
110, 111 system resources 112 starting Setup Utility 95 static-shielding materials 49 stringent security 103 supported discs 114 system board removal 81 spare part numbers 27, 81 System Configuration menu 99, 104 system failure or instability 113 system fan - HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 149
- HP G42-415DX | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 150
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.