Page 1: Maintenance And Service Guide
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. Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC Maintenance and Service Guide...
Page 2 Corporation. SD Logo is a trademark of its proprietor. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
Page 3 April 2010 October 2010 December 2010 ENWW Description Edited this guide to include HP G42 Notebook PC and Compaq CQ42 Notebook PC information only. ● Added newly supported memory modules to spare parts listings in the following locations: Computer major components on page...
Page 4 MSG revision history ENWW...
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. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow.
Page 6 Safety warning notice ENWW...
Page 7: Table Of Contents
Table of contents 1 Product description ... 1 2 External component identification ... 13 Identifying the hardware ... 13 Top components ... 14 TouchPad ... 14 Lights ... 15 Button and speakers ... 16 Keys ... 17 Display ... 18 Right-side components ...
Page 8 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 board ...
Page 9 Using Computer Setup ... 100 Computer Setup menus ... 102 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 SuperMulti DL Drive specifications ... 111 System resource specifications ...
Page 10 10 Recycling ... 129 Battery ... 129 Display ... 129 Index ... 135 ENWW...
Page 11: Product Description
Product description Category Description Product Compaq Presario Name CQ42 Notebook PC HP G42 Notebook 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 turbo, 3-MB L3 cache i5-430M 2.26-GHz (turbo to 2.53- GHz)
Page 12 DC P950 QC 2.1 GHz L2 cache 35W P960 1.8 GHz 2 MB AMD Turion™ II Processor N570 2.7 GHz 2M DC P540 DC 2.4 GHz L2 cache 25W Chapter 1 Product description HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √...
Page 13 V160 2.4 GHz 25W Champlain V120 512K L2 cache AMD Sempron™ II Processor N120 DDR3-1066 Chipset Intel® HM55 Express Intel® GL40 Southbridge: ICH9m ENWW HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √ √ √ √...
Page 14 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 Chapter 1 Product description HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √ √...
Page 15 ● ATi Mobility Radeon Park-LP S3 package (ATI Mobility Radeon™ HD5430 with 512-MB of dedicated video memory (64- MB×16 DDR3, 4 pcs, 800-MHz)) ENWW HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete Compaq Compaq Presario Presario CQ42 CQ42 UMA Models...
Page 16 DDR3 1066 MHz) DDR3, 800-MHz, dual-channel memory (DDR3 1333 MHz can be downgraded to DDR3 800 MHz) Supports the following configurations: Chapter 1 Product description HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √...
Page 17 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 ENWW HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √ √ √ √ √ √...
Page 18 (WLAN) options by way of wireless module: Intel Centrino Wireless-N 1000 802.11b/g 1x2 Intel Centrino Wireless-N 1000 802.11b/g 1x2 Chapter 1 Product description HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √ √ √...
Page 19 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 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √...
Page 20 Premium (32 & 64 bit) Windows 7 Home Basic (32 & 64 bit) Free DOS Serviceabilit End-user replaceable parts: AC adapter Battery (system) Hard drive Chapter 1 Product description HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √ √...
Page 21 Category Description Memory module Optical drive Mini-card device ENWW HP G42 HP G42 Compaq Presario CQ42 Discrete Discrete √ √ √ √ √ √ Compaq Compaq Presario Presario CQ42 CQ42 UMA Models UMA Models 150-199 100-149 √ √ √ √...
Page 22 Chapter 1 Product description ENWW...
Page 23: External Component Identification
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: Select Start >...
Page 24: Top Components
Top components TouchPad Component TouchPad off indicator TouchPad zone Left TouchPad button Right TouchPad button There is an unmarked scroll zone inside the right edge of the TouchPad. To scroll up and down using the TouchPad vertical scroll zone, slide your finger up or down inside the right edge of the TouchPad. For more information about TouchPad features, refer to”...
Page 25: Lights
Lights Component TouchPad light Caps lock light Power light Wireless light ENWW 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. ●...
Page 26: Button And Speakers
Button and speakers Component Speakers (2) Power button Chapter 2 External component identification 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.
Page 27: Keys
Keys Component Windows logo key Windows applications key Navigation keys Action keys ENWW Description Displays system information when pressed in combination with key. Displays system information when pressed in combination with 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.
Page 28: Display
Display Component Internal microphone Integrated webcam (select models only) Integrated webcam light (select models only) Chapter 2 External component identification Description Records sound. Records audio and video and captures still photographs. On: The integrated webcam is in use. ENWW...
Page 29: Right-Side Components
Right-side components Component Optical drive Optical drive light USB port RJ-11 (modem) jack (select models only) AC adapter/power/battery light Power connector Security cable slot ENWW Description Reads and writes to optical discs. Blinking: The optical drive is being accessed. Connects an optional USB device. Connects a modem cable.
Page 30: Left-Side Components
Left-side components Component External monitor port Vent HDMI port (select models only) RJ-45 (network) jack USB ports (2) Audio-in (microphone) jack Audio-out (headphone) jack Digital Media Slot (select models only) Drive light Chapter 2 External component identification Description Connects an external VGA monitor or projector. Enables airflow to cool internal components.
Page 31: Bottom Components
Bottom components Component Battery bay Battery release latch Vents (4) Memory module compartment Hard drive bay ENWW Description Holds the battery. Releases the battery from the battery bay. Enable airflow to cool internal components. NOTE: The computer fan starts up automatically to cool internal components and prevent overheating.
Page 32: Wireless Antennas
Wireless antennas At least 2 antennas send and receive signals from one or more wireless devices. These antennas are not visible from the outside of the computer. NOTE: For optimal transmission, keep the areas immediately around the antennas free from obstructions.
Page 33: Additional Hardware Components
Additional hardware components Component Power cord* AC adapter Battery* *Power cords vary in appearance by country or region. WARNING! Connecting the internal analog modem to a digital line can permanently damage the modem. Immediately disconnect the modem cable if you accidentally connect it to a digital line. NOTE: Telephone jacks vary by country or region.
Page 34 Chapter 2 External component identification ENWW...
Page 35: Illustrated Parts Catalog
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...
Page 36: Computer Major Components
Computer major components Item Description 35.6 cm (14-in), WXGA, BrightView display assembly NOTE: Display assembly components on page 33 internal component spare part information. ● For use with integrated microphone and webcam; Presario, matte black Chapter 3 Illustrated parts catalog Spare part number for more display assembly 592146-001...
Page 37 ● For use with integrated microphone and webcam; HP, silver ● For use with integrated microphone and webcam; HP, white (for model 1.0 only) ● For use with integrated microphone and webcam; HP, charcoal (for models 1.1 and 1.2 only) Keyboards ●...
Page 38 Item Description ● For use in models with HD545V DSC CR (for model 1.0 only) ● For use in models with HD5470/512 MB DSC (for model 1.1 only) ● For use in models with HD5470/512 MB DSC HDMI (for model 1.1 only) ●...
Page 39 Item Description ● Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentian, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Barbados, Belgium, Belize, Benin, Bhutan, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgeria, Burkina Faso, Burundi, Cambodia, Cameroon, Cape Verde, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo, Costa Rica, Croatia, Cyprus, Czech Republic, Zaire, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equitorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece,...
Page 40 Item Description ● Advanced Micro Devices (AMD) processor DC N330 2.3GHz 1M L2 35W (for model 1.0 only) ● Advanced Micro Devices (AMD) processor DC QC P920 1.6Ghz 2M L2 25W (for models 1.0 and 1.1 only) ● Advanced Micro Devices (AMD) processor DC N530 DC 2.5GHz L2 35W (for models 1.0 and 1.1 only) ●...
Page 41 Item Description ● Advanced Micro Devices (AMD) processor Phenom II processor N660 3.0Ghz 2M (for model 1.2 only) ● Advanced Micro Devices (AMD) processor Phenom II processor N870 2.3Ghz 1.5 (for model 1.2 only) ● Advanced Micro Devices (AMD) processor Phenom II processor N970 2.2Ghz 2M (for model 1.2 only) ●...
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 LightScribe with SuperMulti DVD±R/RW Double-Layer, charcoal (for model 1.1 only) ●...
Page 43: Display Assembly Components
Display assembly components Item Description Display bezel ● HP, for use with microphone and webcam ● Presario, for use with microphone and webcam 35.6 cm (14-in) high definition, Brightview, display panel (includes display panel cable) Display hinge cover Display bracket (with hinges)
Page 44 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 covers) Display rubber display kit (not illustrated) Chapter 3 Illustrated parts catalog...
Page 45: Plastics Kit
Plastics Kit Item Description Plastics kit Hard drive bay cover (includes captive screws) Wireless/memory module mini-card compartment cover (includes captive screw) ENWW Spare part number 600190-001 Plastics Kit...
Page 46: Mass Storage Devices
Mass storage devices Item Description 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) Hard drive hardware kit (contains screws, hard drive bracket, not illustrated) Hard drive cable/adapter (included in the cable kit) Optical drives (12.7 mm, SATA, fixed)
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) ENWW Spare part number 608120-001 622575-001 Mass storage devices...
Page 48: Miscellaneous Parts
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, 1.83-m ●...
Page 49: Sequential Part Number Listing
Sequential part number listing Spare part Description number 490371-001 Power cord, AC, 3-pin, black, 1.83-m, for use in North America 490371-011 Power cord, AC, 3-pin, black, 1.83-m, for use in Australia 490371-021 Power cord, AC, 3–pin, black 1.83–m, for use in Europe (for model 1.2 only) 490371-031 Power cord, AC, 3-pin, black, 1.83-m, for use in the United Kingdom and Singapore 490371-061...
Page 50 592146-001 35.6 cm (14-in) WXGA Brightview display assembly for use with integrated microphone and webcam; Presario, matte black 592147-001 Display bezel, HP, for use with microphone and webcam 592148-001 Display bezel, Presario, for use with microphone and webcam 592149-001 Display back cover, Presario, matte black...
Page 51 35.6 cm (14-in) WXGA Brightview display assembly for use with integrated microphone and webcam; HP, biscotti 600164-001 Display back cover, Presario, biscotti 600165-001 Display back cover, HP, biscotti 600166-001 Webcam module 600167-001 Hard disk drive, 160-GB 7200 RPM (for models 1.0 and 1.1 only)
Page 52 HP, white (for model 1.0 only) 606157–001 Display back cover, HP, silver 606158–001 Display back cover, HP, white (for model 1.0 only) 606161-001 Top cover (includes Touchpad and bracket, button board, and cable) , silver color 606162-001 Top cover (includes Touchpad and bracket, button board, and cable), white color (for model 1.0 only)
Page 53 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) 622573-001 Display back cover, HP, charcoal (for models 1.1 and 1.2 only) 622575-001 Optical drive, DVD±RW SuperMulti DL Drive with LightScribe, charcoal (for models 1.1 and 1.2 only) 608218-001 Optical drive, Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, charcoal (for...
Page 54 Spare part Description number 635495-001 AMD Phenom II processor N870 2.3Ghz 1.5 (for model 1.2 only) 635496-001 AMD Phenom II processor N970 2.2Ghz 2M (for model 1.2 only) 636634-001 AMD Champlain SC processor V160 2.4Ghz 25W (for model 1.2 only) 636635-001 AMD Athlon II discrete processor P360 2.5Ghz 35W (for model 1.2 only) Chapter 3 Illustrated parts catalog...
Page 55: Removal And Replacement Procedures
Removal and replacement procedures Preliminary replacement requirements Tools required You will need the following tools to complete the removal and replacement procedures: ● Flat-bladed screwdriver ● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers Service considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures.
Page 56: Cables And Connectors
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 be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion.
Page 57: Grounding Guidelines
Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions.
Page 58: Packaging And Transporting Guidelines
Packaging and transporting guidelines Follow these grounding guidelines when packaging and transporting equipment: ● To avoid hand contact, transport products in static-safe tubes, bags, or boxes. ● Protect ESD-sensitive parts and assemblies with conductive or approved containers or packaging. ● Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations.
Page 59: Equipment Guidelines
Equipment guidelines Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation. ● When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times.
Page 60: Component Replacement Procedures
Component replacement procedures This chapter provides removal and replacement procedures. There are as many as 75 screws, 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 removal and replacement.
Page 61: Computer Feet
Computer feet Description Rubber Feet Kit The computer feet are adhesive-backed rubber pads. The feet attach to the base enclosure in the locations illustrated below. ENWW Spare part number 600184-001 Component replacement procedures...
Page 62: Battery
Battery Description 6-cell 55-WH (2.55Ah) LI-ion 6-cell 47-WH (2.2-Ah) LI-ion Before disassembling the computer, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.
Page 63: Hard Drive
Hard drive NOTE: All hard drive spare part kits include a hard drive bracket. Description 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) Hard drive hardware kit (includes screws and hard drive bracket) Hard drive cable/adaptor (included in the cable kit) Before removing the hard drive, follow these steps:...
Page 64 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. Remove the three Phillips PM2.5×4.0 screws (1) that secure the hard drive to the computer. Use the hard drive bracket to lift the hard drive out (2) of the hard drive compartment.
Page 65 Disconnect the hard drive cable from the system board. Remove the hard drive. 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 Lift the bracket (2) straight up.
Page 66: Optical Drive
Optical drive Description 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 LightScribe, white (for model 1.0 only) DVD±RW SuperMulti DL Drive with LightScribe, charcoal (for models 1.1 and 1.2 only) Blu-ray Disc ROM LightScribe with SuperMulti DVD±R/RW Double-Layer, matte black 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...
Page 67 Remove the optical drive (3). If it is necessary to replace the optical drive bracket, position the optical drive with the optical drive bracket toward you. Remove the two Phillips PM2.0×3.0 screws (1) that secure the optical drive bracket to the optical drive.
Page 68: Wlan Module
WLAN module Description Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter for use in Canada, the Cayman Islands, Guam, Puerto Rico, the United States, and the US Virgin Islands Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter for use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentian, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Barbados, Belgium, Belize, Benin, Bhutan, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgeria, Burkina Faso, Burundi, Cambodia, Cameroon, Cape Verde, Central African Republic, Chad,...
Page 69 Loosen the 2 Phillips PM2.5×5.0 captive screws (1) that secure the mini-card compartment cover. Lift the cover off the computer (2). The mini-card compartment cover is included in the plastics kit, spare part number 600190-001. Disconnect the two WLAN antenna cables (1) from the WLAN module. Remove the Phillips PM2.0×3.0 screw (2) that secures the WLAN module to the computer.
Page 70: Memory Module
Memory module Description 2–GB, PC3 10600, 1333-MHz 1-GB, PC3 10600, 1333-MHz 4-GB, PC3 10600, 1333-MHz (for models 1.1 and 1.2 only) Before removing the memory module, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
Page 71 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. Spread the retaining tabs (1) on each side of the memory module slot to release the memory module.
Page 72: Keyboard
Keyboard Description Keyboard for use in Brazil (for models 1.1 and 1.2 only) Keyboard for use in Canada (English and French) Keyboard for use in for use in Latin America Keyboard for use in South Korea Keyboard for use in Taiwan Keyboard for use in Thailand Keyboard for use in the United States Before removing the keyboard, follow these steps:...
Page 73 Release the top edge of the keyboard by lifting it up to disengage the keyboard from the tabs on the top cover (1). Slide the top edge of the keyboard back (2) until it rests against the display. 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.
Page 74: Top Cover
Top cover Description Top cover (includes Touchpad and bracket, button board, and cable), matte black Top cover, bicotti Top cover, silver Top cover, white (for model 1.0 only) Top cover, charcoal (for models 1.1 and 1.2 only) Before removing the switch cover, follow these steps: Shut down the computer.
Page 75 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. Turn the computer display-side up with the front toward you. Open the computer as far as possible. Release the ZIF connector to which the touchpad (1) is connected and disconnect the cable from the system board.
Page 76 Release the ZIF connector to which the power button board cable (4) is connector and disconnect the cable from the system board. 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.
Page 77: Speaker Assembly
Speaker assembly Description Speaker assembly Before removing the speaker assembly, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.
Page 78: Power Button Board
Power button board Description Power button board (with cable) Before removing the power button board, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.
Page 79: Touchpad Button Board
TouchPad button board Description TouchPad button board Before removing the TouchPad button board, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.
Page 80: Modem Module
Modem module Description High-speed 56K modem for use in all countries and regions except Australia and New Zealand (for model 1.0 only) High-speed 56K modem for use in Australia and New Zealand (for model 1.0 only) Modem module cable with RJ-11 connector (included in the cable kit) Before removing the modem module, follow these steps: Shut down the computer.
Page 81 Lift up on the front of the modem module (3) to disconnect it from the system board. 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 replacement procedures...
Page 82: Usb Board
USB board Description USB board (includes cable) Before removing the USB board, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.
Page 83: Power Connector Cable
Power connector cable Description Power connector cable (includes cable and connector) Before removing the power connector cable, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.
Page 84: Display Assembly
HP, white (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) Before removing the display assembly, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
Page 85 Disconnect the webcam cable (2) from the system board. CAUTION: Support 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. Remove the four black Phillips PM2.5×6.5 screws (1) that secure the display assembly to the computer.
Page 86 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. Chapter 4 Removal and replacement procedures ENWW...
Page 87 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. If it is necessary to replace the display panel, remove the eight Phillips PM2.5×5.0 screws (1) that secure the display panel to the display enclosure, and then lift the panel from the enclosure (2).
Page 88 The display cable is available in the display cable kit, spare part number 592151-001. 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. Remove the display hinges (2) from the display. The display bracket and hinge set is available using spare part number 600627-001.
Page 89 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. If it 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).
Page 90 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 cable is included in the display cable kit, spare part number 592151-001, Reverse this procedure to reassemble and install the display assembly.
Page 91: System Board
System board Description System board for use in models with UMA graphics subsystem memory, System board for use in models with DSC HD5430 MDM CR (for model 1.0 only) System board for use in models with DSC HD5430 (for model 1.0 only) System board for use in models with UMA graphics subsystem memory System board for use in models with HD545V DSC (for model 1.0 only) System board for use in models with HD545V DSC CR (for model 1.0 only)
Page 92 Remove the battery (see Remove the following components: Hard drive (see WLAN (see Optical drive (see Keyboard (see Top cover (see Speaker assembly (see Display assembly (see Top cover (see Remove the following cables from the system board if still connected: ●...
Page 93 Release the system board by sliding it to the right at an angle (3) until the connectors on the left side of the system board clear the base enclosure, and then remove the system board. If it is necessary to replace the modem module cable, remove the RJ-11 connector (1) from the clip built into the base enclosure.
Page 94: Optical Drive Sata Cable And Connector
Optical drive SATA cable and connector Description Optical drive cable (included in the cable kit) Before removing the optical drive cable, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
Page 95 Release the cable from the clips on the base enclosure (2), and then remove the cable (3). ENWW Component replacement procedures...
Page 96: Rtc Battery
RTC battery Description RTC battery Before removing the RTC battery, follow these steps: Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer.
Page 97 Remove the RTC battery (2). Reverse this procedure to install the RTC battery. ENWW Component replacement procedures...
Page 98: Fan/Heat Sink Assembly
Fan/heat sink assembly Description Fan/heat sink assembly for use in models that use Universal Memory Architecture (UMA) graphics subsystem memory (includes thermal material) Fan/heat sink assembly for use in models that use discrete graphics subsystem memory (includes thermal material) Fan/heat sink assembly for use in models that use DSC HD545V graphics subsystem memory (includes thermal material) (for model 1.0 only) NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the right...
Page 99 NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sink assembly and system board components, it may be necessary to move the fan/heat sink assembly from side to side to detach the assembly. Remove the fan/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.
Page 100 The thermal material must be thoroughly cleaned from the surface of the fan/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.
Page 101: Processor
Processor NOTE: All processor spare part kits include thermal material. Description Processor Advanced Micro Devices (AMD) DC P340 2.2GHz 25W DDR3-1066 Mhz (for models 1.1 and 1.2 only) Processor Advanced Micro Devices (AMD) DC N350 2.4GHz 35W DDR3-1066 Mhz (for models 1.1 and 1.2 only) Advanced Micro Devices (AMD) processor DC P540 2.4GHz 25W DDR3-1066 Mhz (for model 1.1 only)
Page 102 Description Advanced Micro Devices (AMD) Phenom II processor N970 2.2Ghz 2M (for model 1.2 only) Champlain SC processor V160 2.4Ghz 25W (for model 1.2 only) Advanced Micro Devices (AMD) Athlon II discrete processor P360 2.5Ghz 35W (for model 1.2 only) Before removing the processor, follow these steps: Shut down the computer.
Page 103 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...
Page 104 Chapter 4 Removal and replacement procedures ENWW...
Page 105: Setup Utility
Setup Utility Computer Setup in Windows 7 To view the drives installed on the computer, select Start > Computer. On models with a secondary hard drive (drive D), the optical drive becomes drive E. The next drive added to the system, such as a new USB drive, will be assigned the next available drive letter. Starting Setup Utility Setup Utility is a ROM-based information and customization utility that can be used even when your Windows®...
Page 106: Navigating And Selecting In Setup Utility
Use the arrow keys to select a language, and then press enter. When a confirmation prompt with your language selected is displayed, press enter. To save your change and exit Setup Utility, use the arrow keys to select Exit > Exit Saving Changes, and then press enter.
Page 107: Restoring Default Settings In Setup Utility
Restoring default settings in Setup Utility The following procedure explains how to restore Setup Utility default settings. If Setup Utility is not already running, begin at step 1. If Setup Utility is already running, begin at step 2. Open Setup Utility by turning on or restarting the computer. While the “Press the ESC key for Startup Menu”...
Page 108: Exiting Setup Utility
Exiting Setup Utility You can exit Setup Utility with or without saving changes. ● To exit Setup Utility and save your changes from the current session: If the Setup Utility menus are not visible, press arrow keys to select Exit > Exit Saving Changes, and then press enter. ●...
Page 109: System Configuration Menu
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 Options Diagnostics menu Select...
Page 110: Computer Setup In Linux
Computer Setup in Linux 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 by your computer.
Page 111: Restoring Factory Settings In Computer Setup
Restoring factory settings in Computer Setup To return all settings in Computer Setup to the values that were set at the factory, follow these steps: Open Computer Setup by turning on or restarting the computer, and then pressing "F10 = ROM Based Setup" message is displayed in the lower-left corner of the screen. Use the arrow keys to select File >...
Page 112: Computer Setup Menus
Computer Setup menus The menu tables in 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...
Page 113: Security Menu
Security menu NOTE: Some of the menu items listed in this section may not be supported by your computer. Select Setup Password Power-On Password Password Options DriveLock Passwords System IDs Disk Sanitizer Diagnostics menu Select HDD Self-Test Options Memory Check ENWW To do this Enter, change, or delete a setup password.
Page 114: System Configuration Menu
System Configuration menu NOTE: Some of the listed System Configuration options may not be supported by your computer. Select Language Boot options Device Configurations 104 Chapter 5 Setup Utility To do this Change the Computer Setup language. ● Set an f9, f10, and delay when starting up.
Page 115 Select Built-in device options Port options ENWW 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. ●...
Page 116 106 Chapter 5 Setup Utility ENWW...
Page 117: Specifications
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) Operating (writing to optical disc) Nonoperating Relative humidity Operating Nonoperating Maximum altitude (unpressurized) Operating Nonoperating NOTE:...
Page 118: 35.6-Cm (14.0-In) Display Specifications
35.6-cm (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 108 Chapter 6 Specifications 17.6 cm (17.6 cm) 31.1 cm (12.24 in) 35.7 cm (14.06 in) Up to 16.8 million 300:1 (typical) 200 nits (typical)
Page 119: Hard Drive Specifications
Hard drive specifications Dimensions Height Width Weight Interface type Transfer rate Security Seek times (typical read, including setting) Single track Average Maximum Logical blocks Disc rotational speed Operating temperature *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly.
Page 120: Dvd±Rw Supermulti Double-Layer Drive With Lightscribe Specifications
DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications Applicable disc Read Write Random access time 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 110 Chapter 6 Specifications CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video CD), Multisession CD...
Page 121: Blu-Ray Rom With Lightscribe Dvd±R/Rw Supermulti Dl Drive Specifications
Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DL Drive specifications Applicable disc Read Write Random access time 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...
Page 122: System Resource Specifications
System resource specifications You can use Device Manager to get a graphical view of the system resources that control how the devices work on the computer. System resources you can access from Device Manager are direct memory access (DMA) channels, input/output (I/O) ports, interrupt request (IRQ) lines, and memory addresses.
Page 123: Backup And Recovery
Backup and recovery Recovery after a system failure is as complete as your most current backup. HP recommends that you create recovery discs immediately after software setup. As you add new software and data files, you should continue to back up your system on a regular basis to maintain a reasonably current backup.
Page 124: Creating Recovery Discs
For detailed information, perform a search for these topics in Help and Support. Creating recovery discs HP recommends that you create recovery discs to be sure that you can restore your system to its original factory state if you experience serious system failure or instability. Create these discs after setting up the computer for the first time.
Page 125: Backing Up Your Information
Backing up your information As you add new software and data files, you should back up your system on a regular basis to maintain a reasonably current backup. Back up your system at the following times: ● At regularly scheduled times NOTE: Set reminders to back up your information periodically.
Page 126: Using Windows Backup And Restore
Using Windows Backup and Restore To create a backup using Windows Backup and Restore, follow these steps: NOTE: Be sure that the 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.
Page 127: Using System Restore Points
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 as you set up your computer. Recovery Manager software allows you to repair or restore the system if you experience system failure or instability.
Page 128: Recovering From The Recovery Discs
(SSD), you may not have a recovery partition. If that is the case, recovery discs have been included with your computer. Use these discs to recover your operating system and software. NOTE: Windows has its own built-in repair features, such as System Restore. If you have not already tried these features, try them before using Recovery Manager.
Page 129: Linux Backup And Recovery
The 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 reinstalled.
Page 130 120 Chapter 7 Backup and recovery ENWW...
Page 131: Connector Pin Assignments
Connector pin assignments Audio-out (headphone) Audio-in (microphone) ENWW Signal Audio out, left channel Audio out, right channel Ground Signal Audio signal in Audio signal in Ground Audio-out (headphone) 121...
Page 132: External Monitor
External monitor 122 Chapter 8 Connector pin assignments Signal Red analog Green analog Blue analog Not connected Ground Ground analog Ground analog Ground analog +5 VDC Ground Monitor detect DDC 2B data Horizontal sync Vertical sync DDC 2B clock ENWW...
Page 133: Modem)
RJ-11 (modem) RJ-45 (network) ENWW Signal Unused Ring Unused Unused Unused Signal Transmit + Transmit - Receive + Unused Unused Receive - Unused Unused RJ-11 (modem) 123...
Page 134: Hdmi
HDMI 124 Chapter 8 Connector pin assignments 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–...
Page 135: Universal Serial Bus
Universal Serial Bus ENWW Signal +5 VDC Data - Data + Ground Universal Serial Bus 125...
Page 136 126 Chapter 8 Connector pin assignments ENWW...
Page 137: Power Cord Set Requirements
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 equipment is purchased.
Page 138: Requirements For Specific Countries Or Regions
Requirements for specific countries or regions Country/region Australia Austria Belgium Canada Denmark Finland France Germany Italy Japan The Netherlands Norway The People's Republic of China South Korea Sweden Switzerland Taiwan The United Kingdom The United States The flexible cord must be Type HO5VV-F, 3-conductor, 1.0-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 where it will be used.
Page 139: Recycling
When you remove these components, handle them carefully. NOTE: Materials Disposal. This HP product contains mercury in the backlight in the display assembly that might require special handling at end-of-life. Disposal of mercury may be regulated because of environmental considerations. For disposal or recycling information, contact your local authorities, or see the Electronic Industries Alliance (EIA) Web site at http://www.eiae.org.
Page 140 Perform the following steps to disassemble the display assembly: Remove all screw covers (1) and screws (2) that secure the display bezel to the display assembly. 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 disengages from the display assembly.
Page 141 Disconnect all display panel cables (1) from the display inverter and remove the inverter (2). Remove all screws (1) that secure the display panel assembly to the display enclosure. Remove the display panel assembly (2) from the display enclosure. Turn the display panel assembly upside-down. Remove all screws that secure the display panel frame to the display panel.
Page 142 Remove the display panel frame (2) from the display panel. Remove the screws (1) that secure the backlight cover to the display panel. Lift the top edge of the backlight cover (2) and swing it outward. Remove the backlight cover. Turn the display panel right-side up.
Page 143 Remove the backlight cables (1) from the clip (2) in the display panel. 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. Remove the backlight frame from the display panel.
Page 144 Remove the backlight from the backlight frame. Disconnect the display panel cable (1) from the LCD panel. Remove the screws (2) that secure the LCD panel to the display rear panel. Release the LCD panel (3) from the display rear panel. Release the tape (4) that secures the LCD panel to the display rear panel.
Page 145: Index
Index Symbols/Numerics 1394 Power Saving 99 AC adapter identifying 23 AC adapter, spare part numbers administrator password 98 antenna removal 78 antennas 22 applications key, Windows 17 audio, product description 8 audio-in jack, pin assignments audio-out jack, pin assignments backing up customized window, toolbar, and menu bar settings 115 personal files 115...
Page 146 display assembly removal 74 spare part number 26, 74 display back cover spare part number 34 display bezel illustrated 33 spare part number 33, 76 display bracket and hinge removal 78 spare part number 78 display cable kit spare part number 33 display component recycling 129 display components illustrated 33...
Page 147 microphone, product description mini-card compartment cover illustrated 35 removal 61 spare part number 61 model name 1 modem cable noise suppression circuitry 23 modem jack, pin assignments modem module product description 8 removal 70 spare part number 28, 70 modem module cable removal 83 monitor port, external 20 monitor port, pin assignments...
Page 148 restoring factory settings 101 Security menu 103 System Configuration menu slots Digital Media 20 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 Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DL Drive 111 computer 107...

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HP Compaq Presario,Presario CQ42-121 Maintenance And Service Manual

1 Product Description

2 External Component Identification

3 Illustrated Parts Catalog

4 Removal and Replacement Procedures

5 Setup Utility

6 Specifications

7 Backup and Recovery

8 Connector Pin Assignments

9 Power Cord Set Requirements

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Maintenance and Service Guide

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