HP G42-232NR Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten
HP G42-232NR Manual
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- HP G42-232NR | 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 G42-232NR | 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 G42-232NR | 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 supported power cord to spare parts listings in the following locations: Miscellaneous Parts, Sequential part number listing on page 39, Memory module on page 60. ● Removed - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 4
iv MSG revision history ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 5
Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 6
vi Safety warning notice ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 7
Mass storage devices ...36 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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 8
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 ...60 Keyboard ...62 Top cover ...64 Speaker assembly ...67 Power button - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 9
Diagnostics menu 103 System Configuration menu 104 6 Specifications ...107 Computer specifications ...107 35.6-cm (14.0-in) display specifications 108 Hard drive specifications ...109 DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications 110 Blu-ray ROM with LightScribe DVD±R/RW - HP G42-232NR | 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 G42-232NR | 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 G42-232NR | 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 G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 14
Intel UMA (integrated)/HD Graphics with 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 √ √ √ Compaq Presario CQ42 Discrete Compaq Presario CQ42 - HP G42-232NR | 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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 16
√ 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 following configurations: HP G42 UMA Compaq - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 17
● 160 GB, 7200 √ rpm Optical Fixed (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 - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 19
and √ auto detect for wide- aspect or standard- aspect video HDMI 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 √ Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq Presario CQ42 UMA - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 20
(32 & 64 bit) Windows 7 Home Basic (32 & 64 bit) Free DOS Serviceabilit End-user y replaceable parts: AC adapter √ Battery (system) √ Hard drive √ 10 Chapter 1 Product description HP G42 UMA Compaq Presario CQ42 Discrete √ Compaq Presario CQ42 Compaq Presario CQ42 UMA Models UMA - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 22
12 Chapter 1 Product description ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 23
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 G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 25
(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 in Hibernation. ● White: An - HP G42-232NR | 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, 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 27
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 G42-232NR | 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 G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 30
computer fan starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on audio. Supports the following optional digital card formats: ● Memory Stick (MS) ● Memory Stick Pro (MSP) ● MultiMediaCard (MMC) ● Secure Digital (SD) Memory Card - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 31
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 21 - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 33
Component (1) Power cord* (2) AC adapter (3) Battery* *Power cords vary in appearance by country or region in which you purchased the computer, you must obtain a country- or region-specific modem cable adapter (included with select models or purchased separately). The modem must be - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 34
24 Chapter 2 External component identification ENWW - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 36
Computer major components Item (1) Description 35.6 cm (14-in), WXGA, BrightView display assembly NOTE: 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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 37
For use with integrated microphone and webcam; HP, charcoal (for models 1.1 and 1.2 only) 622571-001 Keyboards ● For use in Brazil (for models 1.1 subsystem memory (for model 1.0 617029-001 only) Speaker assembly (includes cable) 600189-001 System boards (includes replacement thermal material - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 38
page 35 for more Plastics Kit information) 600190-001 (9a) Hard drive compartment cover (9b) Wireless/memory module mini-card compartment cover RTC battery (includes mounting adhesive) 602745-001 Memory modules ● 2-MB, PC3-10600, 1333-MHz 598856-001 ● 1-MB, PC3-10600, 1333-MHz 598859-001 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 39
-001 SPS-WLAN 802.11 bgn Shiraz HMC 593836-001 SPS-WLAN BGN (1x1) + BT HMC Combo Rashi 602992-001 Processor (includes replacement thermal material) ● Advanced Micro Devices (AMD) processor P320 DDR3-1066 Mhz (for models 1.0 and 1.1 only) 594165-001 ● Advanced Micro Devices (AMD) processor - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 41
-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 ● 6-cell 47-WH (2.2-Ah) LI-ion 593553-001 ● 6-cell 55-WH (2.55-Ah) LI-ion 593554-001 Hard drive (include hard drive bracket) ● 750 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 42
Item Description ● Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, biscotti ● Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, silver ● Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, white (for model 1.0 only) ● Blu-ray Disc ROM - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 44
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 screws and screw - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 46
Mass storage devices Item Description Spare part number (1) Hard drive (include hard drive bracket) ● 750-GB 5400 RPM SATA 12.7mm (for model 1.2 only) ● 640-GB 5400 RPM ● 500-GB 7200 RPM ● 320-GB 7200 RPM ● 250-GB 7200 RPM ● 160-GB 7200 RPM (for models 1.0 and 1.1 only) 603787-001 603785-001 - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 48
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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 49
Sequential part number listing Spare part number 490371-001 490371-011 490371-021 490371-031 490371-061 490371-201 490371-202 490371-AA1 490371-AB1 490371-AD1 490371-D01 490371-D61 510100-001 510100-011 513771-001 575598-001 580101-001 580101-002 592144-001 Description Power cord, AC, 3-pin, black - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 50
; Presario, matte black Display bezel, HP, for use with microphone and webcam Display 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 and webcam; Presario, biscotti Memory module, 2-GB, PC3 10600, 1333-MHz Memory module, 1-GB, PC3 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 51
001 Description Memory module, 4- Keyboard for use in the United States Keyboard for use in English and French Canada Keyboard for use in Latin America Keyboard for use in Brazil (for models 1.1 and 1.2 only) Keyboard for use in Thailand Keyboard for use in Taiwan Keyboard cable RTC battery SPS-WLAN - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 52
with integrated microphone and webcam; HP, white (for model 1.0 only) Display back cover, HP, silver Display back cover, HP, white (for model 1.0 only graphics subsystem memory Thermal module (includes fan and heat sink) for use in models that use discrete graphics subsystem memory Optical drive, - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 53
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) Display back cover, HP, charcoal (for models 1.1 and 1.2 only) - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 55
tools to complete the removal and replacement procedures: ● Flat-bladed screwdriver ● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers Service considerations The following pressure only at the points designated in the maintenance instructions. ENWW Preliminary replacement requirements 45 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 56
, twisting, or tearing cables. Be sure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. Drive handling CAUTION: Drives are fragile components that must be handled with care - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 57
vinyl floor Motions of bench worker Removing DIPS from plastic tube Removing DIPS from vinyl tray Removing DIPS from Styrofoam Removing bubble pack from PCB Packing PCBs 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 58
work surface and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When fixtures must power and input signals before inserting or removing connectors or test equipment. 48 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 59
resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes, or mats Voltage protection level 1,500 V 7,500 V 5,000 V ENWW Preliminary replacement requirements 49 - HP G42-232NR | 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 G42-232NR | 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 G42-232NR | 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 G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 64
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 bracket to lift the hard drive out (2) of - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 66
adapter from the computer. 4. Remove the battery (see Battery on page 52). Remove the optical drive: 1. Position the computer upside down with the front toward you. 2. Remove the Phillips PM2.5x5.0 screw the left to release the optical drive. 56 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 67
(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 bracket (2). Reverse the - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 68
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 upside down with the front toward you. 58 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 69
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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 70
and 1.2 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 the 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 71
from the 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. ENWW Component replacement procedures 61 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 72
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 module on page 58). Remove the keyboard: 1. Turn the computer upside down with the front - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 73
rests against the display. 7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached and disconnect the keyboard cable (2) from the system board. 8. Remove the keyboard. Reverse this procedure to install the keyboard. ENWW Component replacement procedures 63 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 74
AC outlet and then unplugging the AC adapter from the computer. 4. Remove the following components: a. Battery (see Battery on page 52). b. Optical drive (see Optical drive on page 56). c. Keyboard (see Keyboard on page 62). Remove the switch cover: 1. Turn the computer upside down with the front - HP G42-232NR | 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 is connected and disconnect the cable from the system board. 8. Disconnect the speaker cable (3) from the system board. ENWW Component replacement procedures 65 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 76
board. 10. Remove the Phillips PM2.5×6.5 screw (1) from the top cover, disengage the rear edge of 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. 66 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 77
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 (see Optical drive on page 56) b. Keyboard (see Keyboard on page 62) c. Top cover (see Top cover on page 64 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 78
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 (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see Keyboard on page 62) d. Top cover (see Top cover on - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 79
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 (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see Keyboard on page 62) d. Top cover (see Top cover on - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 80
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 (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see Keyboard on page 62) d. Top cover (see Top cover on - HP G42-232NR | 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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 82
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 (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see Keyboard on page 62) d. Top cover (see Top cover on - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 83
600630-001 Before removing the power 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 Keyboard base enclosure. 4. Remove the cable from the base - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 84
then unplugging the AC adapter from the computer. 4. Remove the battery (see 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 62) b. Optical drive (see Optical drive - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 85
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 75 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 86
bottom (3) of the display bezel until 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 87
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 secure the display panel to the display enclosure, and then lift the - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 88
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 (2) from the display - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 89
is necessary to remove the webcam cable, remove the cable from the adhesive strips (1) along the cable path on the display 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 79 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 90
display back cover (2), and then remove the microphone and microphone cable (3). The microphone and cable is included in the display cable kit, spare part number 592151-001, Reverse this procedure to reassemble and install the display assembly. 80 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 91
the system board, 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 86) ● Memory modules (see Memory module on page 60) ● WLAN module (see WLAN module on page 58) ● Modem module - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 92
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 right side toward you. 2. Remove the three Phillips PM2.5×3.0 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 93
left 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. Remove the modem module cable (2) from the routing channel built into the - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 94
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 62) e. Top cover (see Top cover on page 64) f. Speaker assembly - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 96
on page 67) g. Display assembly (see Display assembly on page 74) h. System board (see System board on page 81) Remove the RTC battery: 1. Turn the system board upside down. 2. Release the RTC battery from the clips on the system board (1). 86 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 98
DSC HD545V graphics subsystem memory (includes thermal material) 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 Keyboard Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 99
necessary to move the fan/heat sink assembly from side to side to detach the assembly. 4. Remove the fan/heat sink assembly (3). The thermal material must be thoroughly cleaned from the surface of the material on systems with discrete graphics subsystems. ENWW Component replacement procedures 89 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 100
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 procedure to install the fan/heat sink assembly. 90 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 101
processor N660 3.0Ghz 2M (for model 1.2 only) 635494-001 Advanced Micro Devices (AMD) Phenom II processor N870 2.3Ghz 1.5 (for model 1.2 only) 635495-001 ENWW Component replacement procedures 91 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 102
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 (see Hard drive on page 53) b. Optical drive (see Optical drive on page 56) c. Keyboard (see Keyboard on page 62) d. Top cover (see Top cover on - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 104
94 Chapter 4 Removal and replacement procedures ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 105
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 f10. - or - 1. Open Setup Utility by turning on or restarting the computer. While the "Press the ESC key for Startup Menu" message is displayed - HP G42-232NR | 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 G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 108
may not be supported by your computer. Main menu Select System information To do this ● View and change the system time and date. ● View identification information about the computer. ● View specification information about the processor, memory size, system BIOS, and keyboard controller version - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 109
Language Support Button internal network adapter. ● Boot Order―Set the boot order for: ◦ Notebook Hard Drive ◦ Internal CD/DVD ROM Drive ◦ USB Diskette on Key Disk Self Test Secondary Hard Disk Self Test (select models only) Memory Test To do this Run a comprehensive self-test on the hard drive - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 110
guide may not be supported by your computer. NOTE: Pointing devices are not supported in Computer Setup. You must use the keyboard to navigate and make selections. NOTE: An external keyboard Ignore Changes And Exit. Then follow the instructions on the screen. ● To save your preferences and exit - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 112
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 information for the computer. ● View specification information for the processor, cache and memory size, and system ROM. Replace the - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 113
the menu items listed in this section may not be supported by your computer. Select Setup Password Power-On Password on the primary 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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 114
2nd boot device: USB floppy ◦ 3rd boot device: USB SuperDisk ◦ 4th boot device: Notebook hard drive ◦ 5th boot device: USB hard disk ◦ 6th boot device: Network controller /disable USB legacy support. When enabled, USB legacy support allows the following: ◦ Use of a USB keyboard in Computer Setup even - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 116
106 Chapter 5 Setup Utility ENWW - HP G42-232NR | 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 thermal limits for plastic surfaces. The computer operates well within this range of temperatures. ENWW Computer specifications 107 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 118
35.6-cm (14.0-in) display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format Configuration 800; HD: 1366 × 768 RGB vertical stripe LED 80 × 25 4.0 W ±40° horizontal, +120/-40° vertical (typical) 108 Chapter 6 Specifications ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 119
5°C to 55°C (41°F to 131°F) *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly. NOTE: Certain restrictions and exclusions apply. Contact technical support for details. ENWW Hard drive - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 120
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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 121
ROM with LightScribe DVD±R/RW SuperMulti DL Drive specifications Applicable disc Read Write Random access time BD DVD DL, BD-RE, BD-RE-DL, DVD-ROM, DVD+R, DVD+R-DL, DVD+RW, DVD-R, DVD-R-DL, DVD-RW, DVD-RAM (Ver.2), CD-DA, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 1 and form 2), Photo CD - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 122
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 G42-232NR | 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 click Manage, and then click Disk Management. If the partition is present, an HP Recovery drive is listed in the window. Windows 7 To protect your information, - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 124
Roxio BackOnTrack ● HP Recovery Manager NOTE: For detailed information, perform a search for these topics in Help and Support. Creating recovery discs HP recommends that you create Manager > Recovery Disk Creation. 2. Follow the on-screen instructions. 114 Chapter 7 Backup and recovery ENWW - HP G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 126
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 Windows settings. Refer to Help and Support for more information. 116 Chapter 7 Backup and recovery ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 127
point allows you to save and name a snapshot of your hard drive at a specific point in time. You can then recover back to that point if you want 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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 128
1. Back up all personal files. 2. Insert the first recovery disc into the optical drive and restart the computer. 3. Follow the on-screen instructions. Recovering from the dedicated recovery partition (select models only) NOTE: Computers with an SSD may not have a recovery partition. If the computer - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 129
removed. The f11 recovery tool 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 message is displayed on the screen. 3. Follow the on-screen instructions. NOTE: If you are - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 130
120 Chapter 7 Backup and recovery ENWW - HP G42-232NR | 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 G42-232NR | 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 G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 134
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 G42-232NR | 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 136
126 Chapter 8 Connector pin assignments ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 137
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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 138
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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 139
battery disposal. Display WARNING! The backlight contains mercury. Exercise caution when removing you remove these components, handle them carefully. NOTE: Materials Disposal. This HP product provided in this chapter are general disassembly instructions. Specific details, such as screw sizes, - HP G42-232NR | 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 (2) of the display bezel until the bezel disengages from the display assembly. 3. Remove the display bezel (3). 130 Chapter 10 Recycling ENWW - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 141
the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside-down. 8. Remove all screws that secure the display panel frame to the display panel. 9. Use a sharp-edged tool to cut the tape (1) that secures the sides of - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 142
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 10 Recycling - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 143
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 backlight frame from the display panel. ENWW Display 133 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 144
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 - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 145
DL Drive specifications 111 boot options 99, 104 boot order 99, 104 button sound 99 buttons power 16 TouchPad right/left 14 C cable kit, spare part number 31 cables, service considerations 46 camera module removal 77 spare part number 77 camera, product description 8 caps lock light, identifying - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 146
20 K keyboard product description 10 removal 62 spare part numbers 27, 62 keys esc 17 fn 17 function 17 navigation 17 Windows applications 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 G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 147
1 security 10 serviceability 10 wireless 8 product name 1 R recovering a program or driver 113 recovering from the dedicated recovery partition 118 recovering from the recovery discs 118 recovery discs 113, 114 Recovery Manager 113, 118 recovery partition 113 recovery, system 118 removal/replacement - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 148
memory module 21 security cable 19 solid-state drive (SSD) 113, 118 speaker assembly removal 67 spare part number 27, 67 speakers, identifying 16 specifications 95 static-shielding materials 49 stringent security 103 supported discs 114 system board removal 81 spare part numbers 27, 81 System - HP G42-232NR | Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC - Mainten - Page 149
- HP G42-232NR | 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.