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HP 320 - Notebook PC Manual
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- HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 1
Compaq 320 Notebook PC Compaq 321 Notebook PC Compaq 420 Notebook PC Compaq 421 Notebook PC Compaq 620 Notebook PC Compaq 621 Notebook PC HP 420 Notebook PC HP 620 Notebook PC Maintenance and Service Guide - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 2
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 or omissions contained herein. First Edition: April 2010 Document Part Number: 601871-001 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 3
the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 4
iv Safety warning notice - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 5
11 Buttons, switch, and speaker 13 Keys ...14 Front parts catalog 24 Service tag ...24 Computer major components 26 Display assembly components 32 Plastics Kit ...33 Cables ...34 Mass storage devices ...36 Miscellaneous parts ...37 Sequential part number listing 39 4 Removal and replacement - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 6
...52 Battery ...53 Service door ...53 Hard drive ...56 Memory module ...59 WLAN module ...61 Optical drive ...62 Fan ...64 Heat sink ...65 Processor ...66 Palm rest ...68 Keyboard ...73 Top cover ...77 Power switch board 82 Bluetooth module ...84 USB connector assembly 85 Speaker ...87 Display - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 7
) display specifications 123 35.6-cm (14.0-in) display specifications 125 33.8-cm (13.3-in) display specifications 126 Hard drive specifications ...127 DVD-ROM Drive specifications 128 DVD±RW Double-Layer Combo Drive specifications 129 7 Backup and recovery ...130 Backup and recovery in Windows - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 8
...142 HDMI ...143 RJ-11 (modem) ...144 RJ-45 (network) ...145 Universal Serial Bus ...145 9 Power cord set requirements 146 Requirements for all countries and regions 146 Requirements for specific countries and regions 147 10 Recycling ...148 Battery ...148 Display ...148 Index ...154 viii - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 9
graphics, PM45 chipset Compaq 320 Notebook PC • • Compaq 321 Notebook PC • Compaq 420 Notebook PC • • Compaq 421 Notebook PC • Compaq 620 Notebook PC • • Compaq 621 Notebook PC • HP 420 Notebook PC • • HP 620 Notebook PC • • Intel® Celeron® processors T3300, 2.00-GHz, 800 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 10
) ATI Mobility Radeon HD 530v with 512-MB memory All display assemblies support privacy filter 33.8-cm (13.3-in) HD LED backlight panel: ● 1366×768 AntiGlare ● 1366×768 AntiGlare for webcam ● 1366×768 BrightView ● 1366×768 BrightView for Webcam 35.6-cm (14.0-in) HD LED backlight panel: ● 1366×768 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 11
webcam ● 1366×768 BrightView ● 1366×768 BrightView for Webcam 2 customer-accessible/upgradable memory • • • module slots Supports dual-channel memory • • • Supports system memory (1024MB × 1) Supports 9.5-mm, 6.35-cm (2.50-in) hard • • • drives Customer-accessible • • • Serial ATA - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 12
speaker Headphone and microphone jacks Integrated 2MP camera with fixed focus (select models only) 56K V.92 3.8 cm (1.5-in) data/fax modem Supports no modem option For use in all countries and regions except APJ For use in APJ only Modem cable not included 10/100 Ethernet network interface card - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 13
● Intel 802.11 b/g/n (1 x 2) Integrated wireless personal area network (WPAN) options by way of Bluetooth® module: Support option for no-WPAN • • • Bluetooth 2.1 • • • One ExpressCard/33-mm • • • Media Card Reader supporting Secure Digital • • • (SD) Memory Card, Secure Digital High - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 14
devices 35.6-cm (14.0-in)/33.8-cm (13.3-in) • • • keyboard with TouchPad Suports 2-way scroll with legend and gestures • • • (taps enabled as default) Power 65-W non-Smart AC adapter with localized • • requirements cable plug support (3-wire plug with ground pin) 90-W non-Smart AC - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 15
Home Premium with Office 2007 • • • ready - EDGI Windows 7 Professional 32 with Office 2007 • • • ready - EDGI Windows 7 Professional 32 with XP Pro • • • images with Office 2007 ready (excludes Japan) Windows 7 Professional 32 with XP Pro • • • images with Office 2007 ready - EDGI - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 16
of China only) DRDVD Windows Vista DRDVD Windows XP Pro Windows Vista Office Ready DVD Certified: Microsoft® WHQL SuSE Linux Web Support: All Windows Vista 64 versions Windows 7 Professional 64 versions SuSE Linux End-user replaceable parts: AC adapter Battery (system) Hard drive UMA graphics, GL40 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 17
Category Description Memory module Keyboard Optical drive WLAN module UMA graphics, GL40 chipset UMA graphics, GM45 chipset Discrete graphics, PM45 chipset • • • • • • • • • • • • 9 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 18
Top Components TouchPad Component (1) TouchPad * (2) TouchPad button (3) TouchPad scroll zone Description Moves the pointer and selects or activates items on the screen. The left and right sides of the single button function like the left and right buttons on an external mouse. Scrolls up or down - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 19
Lights NOTE: Refer to the illustration that most closely matches your computer. Component (1) Caps lock light Description On: Caps lock is on. Top Components 11 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 20
Component (2) Power light (3) Wireless light Description ● On: The computer is on. ● Blinking: The computer is in the Suspend state. ● Off: The computer is off or in Hibernation. ● White: An integrated wireless device, such as a wireless local area network (WLAN) device is on. ● Amber: All wireless - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 21
Buttons, switch, and speaker Component (1) Speaker (2) Internal display switch (3) Power button Description Produces sound. Turns off the display if the panel lid is closed while the power is on. ● When the computer is off, press the button to turn on the computer. ● When the computer is on, press - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 22
Displays system information when pressed in combination with the fn key. Executes frequently used system functions when pressed in combination with a function key, the num lk key, or the esc key. Because the wireless devices are enabled at the factory, use the wireless key to turn on or turn - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 23
(3) Function keys (4) Embedded numeric keypad keys (5) Wireless key Description Displays system information when pressed in combination with the fn key. Executes frequently are enabled at the factory, use the wireless key to turn on or turn off the wireless devices simultaneously. Top Components 15 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 24
, including MMC Plus HC) ● Secure Digital (SD) Memory Card ● Secure Digital High Capacity (SDHC) Memory Card ● Secure Digital High Speed (SDHS) Memory Card Produces sound when connected to optional powered stereo speakers, headphones, ear buds, a headset, or television audio. NOTE: When a device is - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 25
Component (4) Optical drive light (select models only) (5) Optical drive button (select models only) Description Blinking: The optical drive is being accessed. Opens the optical drive tray. Right-side components 17 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 26
into an external power source, the lights turn off when all batteries in the computer are fully charged. If the computer is not plugged into an external power source, the light stays off until the battery reaches a low battery level. Connects an AC adapter. Connects a network cable. Connects an - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 27
Bottom components Component (1) Battery release latches (2) (2) Battery bay Description Release the battery from the battery bay. Holds the battery. Bottom components 19 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 28
unresponsive system and the display of a warning message, replace the WLAN module with replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support. Holds the hard drive. Multimedia components Component (1) Webcam - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 29
and captures still photographs. Records sound. Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. Produces sound when connected to optional powered stereo speakers, headphones, ear buds, a headset, or television audio. NOTE: When a device is connected - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 30
applies to your country or region. These notices are located in Help and Support. Component Description (1) WWAN antennas (2)* (select models only) Send and receive wireless signals to communicate with wireless wide-area networks (WWAN). (2) WLAN antennas (2)* Send and receive wireless signals - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 31
Additional hardware components Component Description (1) Power cord* Connects an AC adapter to an AC outlet. (2) Battery* Powers the computer when the computer is not plugged into external power. (3) AC adapter Converts AC power to DC power. *Batteries and power cords vary in appearance by - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 32
number (p/n): This number provides specific information about the product's hardware components. The part number helps a service technician to determine what components and parts are needed. (4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and support - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 33
Service tag 25 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 34
Computer major components 26 Chapter 3 Illustrated parts catalog - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 35
display assembly for use in computers with WLAN and webcam (1366×768 resolution) 605812-001 (2) Keyboard NOTE: For a detailed list of available keyboards, see Sequential part number (13.3-in) computers 605779-001 For use in HP 35.6-cm (14.0-in) computers 605780-001 For use in Compaq 35.6-cm - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 36
, spare part number 599807-001. See Cables on page 34 for more Cable Kit spare part information. For use in all countries and regions except Australia and New Zealand 510100-001 For use only in Australia and New Zealand 510100-011 (11) RTC battery 449137-001 (12) Hard drive extender 605798 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 37
Bluetooth module 537921-001 HP Integrated module with Bluetooth replacement thermal material) (not illustrated) Intel® processor Celeron® T3300, 2.0-GHz, 800 MHz FSB, 1-MB cache 592399-001 Pentium T4500, 2.3-GHz, 800 MHz FSB, 1-MB cache 591880-001 Celeron Speaker 605792-001 (18) Audio board - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 38
Broadcom 4313AGN 802.11a/b/g/draft-n WiFi Adapter 593836-001 Broadcom 4312G 802.11b/g WiFi adapters: ● For use in Antigua and Vietnam, Yemen, Zaire, Zambia, and Zimbabwe Intel Wi-Fi Link 1000, 802.11b/g/n WLAN module: For 9285G 802.11b/g/n WiFi Adapter for use in all countries and regions 605560 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 39
Item Description Realtek RTL8191SE 802.11b/g/n WiFi Adapter for use in all countries and regions (23) Hard drive (includes hard drive bracket) 500-GB, 7200-rpm 500-GB, 7200-rpm for use in 39.6-cm (15.6-in) computers 320-GB, 7200-rpm 320-GB, 7200-rpm - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 40
in) computers Webcam module Display panel Display panel AntiGlare without webcam for use in 39.6-cm (15.6-in) computers Display panel AntiGlare with webcam for use in 39.6-cm (15.6-in) computers Display panel BrightView without webcam for use in 39.6-cm (15.6-in) computers Spare part number 605751 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 41
LCD cable without webcam Microphone cable Display enclosure For use in Compaq 33.8-cm (13.3-in) computers For use in HP 35.6-cm (14.0-in) computers For use in Compaq 35.6-cm (14.0-in) computers For use in HP 39.6-cm (15.6-in) computers For use in Compaq 39.6-cm (15.6-in) computers Spare part number - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 42
Item (1) (2) Description Plastics Kit: Dummy ExpressCard Dummy optical drive Cables Spare part number 605786-001 Item Description Cable Kit , includes: (1) Bluetooth cable (2) RJ-11 cable (3) Main battery connector 34 Chapter 3 Illustrated parts catalog Spare part number 605793-001 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 43
Item Description (1) WLAN transceiver with cable (2) Microphone cable (3) LCD Cable Kit LCD Cable without webcam ( not shown) LCD Cable with webcam cable (4) USB cable Spare part number spared with display assembly spared with display assembly 605766-001 605767-001 605796-001 Cables 35 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 44
Mass storage devices Item Description (1) Hard drive (includes bracket) 500-GB, 7200-rpm 500- 250-GB, 5400-rpm 160-GB, 7200-rpm (2) Optical drive (includes bezel) DVD±RW Double-Layer Drive with LightScribe DVD-ROM Drive Spare part number 608139-001 611029-001 608138-001 611028-001 608137-001 611027 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 45
Miscellaneous parts Description AC adapters 65-W AC adapter EM 65W AC adapter 90W PFC AC adapter EM 90W PFC AC adapter Power cords 10 middle body bumpers, 10 RJ-11 bumpers, 10 bottom case bumpers) Spare part number 609948-001 609939-001 609947-001 613153-001 490371-D01 490371-011 490371-201 490371 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 46
Description For use in 33.8-cm (13.3-in) and 35.6-cm (14.0-in) computers For use in 39.6-cm (15.6-in) computers Spare part number 605789-001 608931-001 38 Chapter 3 Illustrated parts catalog - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 47
Sequential part number listing Spare part number Description 449137-001 RTC battery 463958-001 65-W AC adapter for use in computers with UMA graphics 490371-001 Power cord for use in the United States 490371-021 Power cord for use in Europe, the Middle East, and Africa 490371-031 Power cord - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 48
591880-001 Pentium T4500, 2.3-GHz, 800 MHz FSB, 1-MB cache 592399-001 Celeron® T3300, 2.0-GHz, 800 MHz FSB, 1-MB cache 593533-001 Realtek RTL8191SE 802.11b/g/n WiFi Adapter 593572-001 Battery, 6-cell, 47 Wh, 2.2 Ah for use in computers with 15.6-in displays 593573-001 Battery, 9-cell, 93 Wh - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 49
LCD bezel with webcam 605757-001 HP 39.6-cm (15.6-in) LCD bezel without webcam 605758-001 HP 39.6-cm (15.6-in) LCD bezel with webcam 605759-001 Compaq 39.6-cm (15.6-in) LCD bezel without webcam 605760-001 Compaq 39.6-cm (15.6-in) LCD bezel with webcam 605761-001 Compaq 33.8-cm (13.3-in) display - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 50
605790-001 Screw Kit 605791-001 Fan 605792-001 Speaker 605793-001 Cable Kit 605794-001 Power switch board 605795-001 TouchPad board 605796-001 USB board 605797-001 Audio board 605798-001 Hard drive extender 605799-001 Optical drive extender for 39.6-cm (15.6-in) computers 605800-001 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 51
Spare part number Description 605807-001 35.6-cm (14.0-in) HD BrightView display assembly for use in computers without webcam (1366×768 resolution) 605808-001 35.6-cm (14.0-in) HD BrightView display assembly for use in computers equipped with webcam (1366×768 resolution) 605809-001 33.8-cm (13 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 52
Spare part number Description 605813-AD1 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for use in South Korea 605813-B31 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for International use 605813-B71 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 53
drive for use in computers with 39.6-cm (15.6-in) displays 611028-001 320-GB, 7200-rpm hard drive for use in computers with 39.6-cm (15.6-in) displays 611029-001 500-GB, 7200-rpm hard drive for use in computers with 39.6-cm (15.6-in) displays 613153-001 90W PFC AC adapter Sequential part number - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 54
area to prevent damage. Plastic parts CAUTION: Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions. 46 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 55
surface. After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag. Avoid exposing a hard drive to products that have magnetic fields, such as monitors or speakers. Avoid exposing a drive to temperature extremes or liquids. If a drive must be mailed, place - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 56
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 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 48 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 57
components, parts, and assemblies by the case or PCM laminate. Handle these items only at static-free workstations. ● Avoid contact with pins, leads, or circuitry. ● Turn off power and input signals before inserting or removing connectors or test equipment. Preliminary replacement requirements 49 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 58
cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic Voltage protection level 1,500 V 7,500 V 5,000 V 50 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 59
number (p/n): This number provides specific information about the product's hardware components. The part number helps a service technician to determine what components and parts are needed. (4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and support - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 60
Rubber Kit, spare part number 605789-001 for 33.8-cm (13.3-in) and 35.6-cm (14.0-in) computers and in Rubber Kit 608931-001 for 39.6-cm (15.6-in) computers. There are 4 rubber feet that attach to the base enclosure in the locations illustrated below. 52 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 61
the battery by inserting it into the battery bay until you hear a click. Service door Description For use in computers with 39.6-cm (15.6-in) displays For use in computers with 35.6-cm (14-in) and 33.8-cm (13.3-in) displays Spare part number 605785-001 605874-001 Component replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 62
external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). Remove the service door on a 39.6-cm (15.6-in) computer - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 63
2. Slide the service door (2) away from the computer. Reverse this procedure to install the switch cover. Component replacement procedures 55 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 64
from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). Remove the hard drive from a 39.6-cm (15.6-in) computer: 1. Position - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 65
(1) and the Phillips PM2.5×4.0 screw (2) that secure the hard drive to the computer. 3. Grasp the mylar tab on the hard drive and slide the hard drive (3) to the right to disconnect it from the system board. 4. Remove the hard drive (4) from the hard drive bay. Component replacement procedures 57 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 66
, follow these steps: 1. If it is necessary to replace the hard drive bracket, remove the two Phillips PM3.0×4.0 hard drive bracket screws (1) from each side of the hard drive. 2. Lift the bracket (2) straight up to remove it from the hard drive. Reverse this procedure to reassemble and install the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 67
connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). Remove the memory - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 68
3. Remove the memory module (2) by pulling the module away from the slot at an angle. NOTE: Memory modules are designed with a notch to prevent incorrect insertion into the memory module slot. Reverse this procedure to install a memory module. 60 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 69
Description Spare part number Broadcom 4312 , Vietnam, Yemen, Zaire, Zambia, and Zimbabwe Intel Wi-Fi Link 1000, 802.11b/g/n WLAN module ● For use WiFi Adapter 593836-0001 Atheros 9285G 802.11 b/g/n WiFi Adapter for use in all countries and regions 605560-005 Realtek RTL8191SE802.11 b/g/n WiFi - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 70
connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). Remove the WLAN - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 71
from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). Remove the optical drive: 1. Position the computer with the right - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 72
to reassemble and install an optical drive. Fan The spare part number for the fan that is used in all models is 605791-001. Before removing the fan, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 73
connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 74
3. Raise the end of the heat sink (3) to free it from the system board components and then remove the heat sink (4) from around the processor. 3. Lift the heat sink (3) from the system board. Processor NOTE: The processor spare part kit includes replacement thermal material. 66 Chapter 4 Removal and - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 75
connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 76
rest for HP brand units with 35.6-cm (14-in) displays (includes TouchPad) Spare part number 605783-001 605781-001 605779-001 605782-001 605780-001 Before removing the palm rest, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 77
power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service the computer. 3. Turn the computer over and pull up (1) on the top edge of the palm rest nearest the keyboard. With the palm - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 78
. 2. Remove the two Torx M2.5×6.0 screws (1) and one Philllips PM2.25×2.5 broadhead screw (2) that secure the palm rest to the computer. 70 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 79
3. Turn the computer over, rotate the palm rest up (1) and slide the palm rest to the right (2) to release it from the computer. : 1. Lay the palm rest on a protected surface upside-down. 2. Release the ZIF connector (1) and disconnect the cable (2 from the socket. Component replacement procedures 71 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 80
3. Remove the single screw (1) that secures the TouchPad board to the palm rest and lift the TouchPad board (2) from the palm rest. Reverse this procedure to install the TouchPad board. Reverse this procedure to install the palm rest. 72 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 81
cm (13.3-in) displays 605814-xx1 NOTE: For a detailed list of available keyboards, see Sequential part number listing on page 39. Before removing the keyboard, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 82
3. Turn the unit over, lift the top edge of the keyboard (1) and slide it (2) towards the display. 4. Rest the keyboard on its edge and slide the keyboard back toward the display then, release the ZIF connector (1) to which the keyboard cable is attached, and disconnect the keyboard cable (2) from - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 83
two Phillips PM2.5×3.0 broadhead black screws (1), one Phillips PM2.5×3.0 broadhead silver screw (2), and two Torx M2.5×6.0 screws (3) that secure the keyboard. 3. Turn the unit over, lift the top edge of the keyboard (1) and slide it (2) towards the display. Component replacement procedures 75 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 84
and slide the keyboard back toward the display then, release the ZIF connector (1) to which the keyboard cable is attached, and disconnect the keyboard cable (2) from the system board. Reverse this procedure to install the switch cover and keyboard. 76 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 85
for use in HP brand computers with 35.6-cm (14.0-in) displays Spare part number 605778-001 605776-001 605774-001 605777-001 605775-001 Before removing the top cover, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 86
3. Remove the nine Torx M2.5×6.0 screws (1), three Phillips PM2.5×3.0 black broadhead screws (2), and three Phillips PM2.0×3.0 screws (3). 4. Turn the computer over so it is right-side up and remove four Torx M2.5×6.0 screws. 78 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 87
5. Release the ZIF connector (1) and remove the power switch cable (2). 6. Rotate the top cover up (1) and remove it from the base enclosure (2). Component replacement procedures 79 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 88
computer: 1. With the display panel in the open position, press in (1) of the ExpressCard to release it and then pull the card (2) from the computer. 2. Position the computer upside down with the front toward you. 3. Remove the two Phillips PM2.0×2.0 screws (1) located in the battery bay, four Torx - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 89
4. Turn the computer over so it is right-side up and remove five Torx M2.5×6.0 screws. 5. Release the ZIF connector (1) and disconnect the power switch cable (2). Component replacement procedures 81 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 90
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the keyboard (see Keyboard on page 73). 82 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 91
Remove the power switch board: 1. Release the ZIF connector (1) and disconnect the ribbon cable (2) from the system board. 2. Remove the the board (2), and then slide the board out of the retainer (3). Reverse this procedure to install the power button board. Component replacement procedures 83 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 92
605793-001. See Cables on page 34 for more Cable Kit spare part number information. Before removing the Bluetooth module, follow these steps: 1. 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 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 93
install the Bluetooth module. USB connector assembly The spare part number for power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the palm rest (see Palm rest on page 68). 6. Remove the keyboard (see Keyboard - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 94
USB connector assembly (3) that is held on the base enclosure with adhesive. Reverse this procedure to install the USB connector assembly. 86 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 95
unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the palm rest (see Palm rest on page 68). 7. Remove the keyboard (see Keyboard on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 96
unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the palm rest (see Palm rest on page 68). 7. Remove the keyboard (see Keyboard on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 97
Support the display assembly when removing the retaining screws. Failure to support the display assembly can result in damage to the display assembly and other computer components. 2. Disconnect the display near the hard drive. 4. Remove eight Torx M2.5×6.0 screws (1) that secure the display to the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 98
Support the display assembly when removing the retaining screws. Failure to support the display assembly can result in damage to the display assembly and other computer components. 2. Disconnect the display near the hard drive. 4. Remove four Torx M2.5×6.0 screws (1) that secure the display to the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 99
If it is necessary to replace the display bezel, display enclosure, or display hinges, remove the two mylar screw covers (1) and the 2 Phillips PM2.5×4.0 screws (2) that secure the display bezel to the display assembly. The screw covers are available in the Rubber Kit, spare part number 598678-001 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 100
that is attached with adhesive off the display enclosure. The webcam module can be ordered by using spare part number 611026-001. NOTE: To replace the webcam module in the display enclosure, align the holes on the webcam module with the pins on the display enclosure and press onto the double-sided - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 101
Remove the display hinges (2) by pulling them away from the display panel. The left and right display hinges are available in the Hinge Kit, spare part number 605769-001.. Remove the microphone: 1. Pull the microphone from its socket (1) on the display enclosure. Component replacement procedures 93 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 102
cable from the raceway (2) in the display enclosure. To replace the display cable assembly: 1. Place the display panel face down on a protected soft surface and remove the clear protector (1) that covers the cable connector on the back of the panel. 2. Remove the display cable (2) from the back of - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 103
2. Peel the WLAN antenna receivers (2) from the enclosure Reverse this procedure to assemble the display assembly. Component replacement procedures 95 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 104
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the hard drive (see Hard drive on page 56). 7. Remove the optical drive (see Optical drive on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 105
computer: 1. Position the computer with the front toward you. 2. Release the audio ZIF connector (1) and disconnect the cable (2) from the left edge of the out (2) from the system board. 6. Remove the hard drive extender by first removing the Phillips PM2.0×3.0 screw (1) that secures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 106
connector from the base enclosure (1), and disconnect the cable (2) from the system board. 9. Disconnect the main battery cable (3) from the bottom of the system board. 10. Lift the system board at an angle (4) the computer with the front toward you. 98 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 107
to the base enclosure, disconnect the audio ZIF connector and remove the flat-ribbon cable (2) from the system board. 3. Remove the optical drive extender on the 35.6-cm (14 at an angle (3) and disconnect the main battery cable (4) from the bottom of the board. Component replacement procedures 99 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 108
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the hard drive (see Hard drive on page 56). 7. Remove the optical drive (see Optical drive on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 109
Remove the main battery cable: 1. Remove the two Phillips PM2.5×4.0 screws (1) that secure the connector to the base enclosure. 2. Lift the connector up (2) and out of the base enclosure. Reverse the procedure to install the main battery connector. Component replacement procedures 101 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 110
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the hard drive (see Hard drive on page 56). 7. Remove the optical drive (see Optical drive on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 111
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the hard drive (see Hard drive on page 56). 7. Remove the optical drive (see Optical drive on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 112
10. Remove the keyboard (see Keyboard on page 73). 11. Remove the top cover (see Top cover on page 77). 12. Remove the system board (see System modem. 5. Remove the tape (2) that secures the cable to the system board and then, remove the cable (3). 104 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 113
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. Remove the hard drive (see Hard drive on page 56). 7. Remove the optical drive (see Optical drive on - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 114
the audio board from 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers: 1. Release the latch (1) that secures the board to the base enclosure. 2. Lift the audio board (2) from the base enclosure. Reverse this procedure to install the audio board. 106 Chapter 4 Removal and replacement procedures - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 115
Setup only if USB legacy support is enabled. To start Computer Setup, follow these steps: 1. Turn on or restart the computer, and then press esc while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the screen. 2. Press f10 to enter BIOS Setup. Using Computer Setup - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 116
hard drive mode. To return all settings in Computer Setup to the values that were set at the factory, follow these steps: 1. Turn on or restart the computer, and then press esc while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the screen. 2. Press f10 to enter BIOS - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 117
batteries installed in the computer. ● Error Log-Displays a log file if any errors have occurred. Replace the configuration settings in Computer Setup with the original factory settings. (Hard drive mode, password settings, and security settings are not changed when you restore the factory settings - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 118
Select Ignore Changes and Exit Save Changes and Exit To do this Cancel any changes entered during the current session. Then exit and restart the computer. Save any changes entered during the current session. Then exit and restart the computer. Your changes go into effect when the computer restarts. - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 119
or master password. NOTE: DriveLock settings are accessible only when you enter Computer Setup by turning on (not restarting) the computer. Enable/disable Automatic DriveLock support (disabled by default). Run Disk Sanitizer to destroy all existing data on the primary hard drive or the drive in the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 120
by default). When enabled, USB legacy support allows the following: ◦ Use of a USB keyboard in Computer Setup even when a Windows operating system is not running. ◦ Startup from bootable USB devices, including a hard drive, diskette drive, or optical drive connected by a USB port to the computer - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 121
battery fast charge (enabled by default). ● Enable/disable HP QuickLook 2 (enabled by default). ● Enable/disable preboot authentication on HP QuickLock boot (enabled by default). ● Enable/disable HP CPU (enabled by default). ● Enable/disable Intel HT technology (enabled by default). ● Enable/disable - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 122
Enable/disable the notebook upgrade bay device (enabled by default). ● Enable/disable the fingerprint device (enabled by default). ● Enable/disable the integrated camera (enabled by default). ● Enable/disable the power monitor circuit (enabled by default). ● Enable/disable the audio device (enabled - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 123
terminal emulation mode. Options include the following: ◦ ANSI (default setting) ◦ VT100 ● Enable/disable firmware progress event support. ● Enable/disable initiate Intel CIRA. Change, view, or hide security levels for all BIOS menu items. Restore the default security settings. Computer Setup in - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 124
Setup only if USB legacy support is enabled. To start Computer Setup, follow these steps: 1. Turn on or restart the computer. 2. Before your operating system opens and while the "F10=ROM Based Setup" message is displayed in the lower-left corner of the screen, press f10. 116 Chapter 5 Computer - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 125
, 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 factory settings. Computer Setup in Linux 117 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 126
may not be supported by your computer or your specification information for the processor, cache and memory size, and system ROM. Replace the configuration settings in Computer Setup with the original factory settings. (Password settings and security settings are not changed when you restore the factory - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 127
are accessible only when you enter Computer Setup by turning on (not restarting) the computer. Enter a user-defined computer asset tracking number and ownership tag. Run Disk Sanitizer to destroy all existing data on the primary hard drive. The following options are available: ● Fast: Runs the - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 128
boot device: USB SuperDisk ◦ 4th boot device: Notebook hard drive ◦ 5th boot device: USB hard disk ◦ 6th boot device: Network controller ● Swap the functions of the fn key and left ctrl key. ● Enable/disable USB legacy support. When enabled, USB legacy support allows the following: ◦ Use of a USB - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 129
embedded WLAN Device Radio. ● Enable/disable embedded Bluetooth Device Radio. ● Enable/disable Network Interface Controller (NIC) ● Enable/disable LAN/WLAN Switching. ● Enable/disable Wake on LAN. ● Enable/disable the integrated camera (webcam) ● Enable/disable USB port. ● Enable/disable ExpressCard - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 130
optical drive, 2.04 kg WXGA display assembly, 1 memory module, hard drive, and 6-cell battery) 4.5 lbs Input power Operating voltage 18.5 V dc @ 4.74 A - 90 W Operating current 4.74 A Temperature Operating (not writing to optical disc) 0°C to 35°C 32°F to 95°F 122 Chapter 6 Specifications - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 131
Metric U.S. Operating (writing to optical disc) 5°C to 35°C 41°F to 95°F Nonoperating -20°C to 60°C -4°F to 140°F range of temperatures. 39.6-cm (15.6-in) display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Format Configuration - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 132
Total power consumption Viewing angle @CR>10 Metric 5.6 W (max) 5 VA U.S. 124 Chapter 6 Specifications - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 133
35.6-cm (14.0-in) display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Format Configuration Backlight Response Time Total power consumption Viewing angle @ CR>10 Metric U.S. 17.40 cm 6.9 in 30.94 cm 12.2 in 35.50 cm 14.0 in 262 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 134
33.8-cm (13.3-in) display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Format Configuration Backlight Response Time Total power consumption Viewing angle @ CR>10 Metric U.S. 16.50 cm 6.5 in 29.34 cm 11.5 in 33.66 cm 13.3 in 262 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 135
131°F) (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. Hard drive specifications 127 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 136
DVD-ROM Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate CD-R (24X) CD-RW (10X) CD-ROM (24X) DVD (8X) Multiword DMA mode 2 DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18, CD-ROM (Mode 1 and 2), CD Digital Audio, CD-XA ready (Mode 2, Form 1 and Form 2), CD-I (Mode 2, - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 137
DVD±RW Double-Layer Combo Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate 24X CD-ROM 8X DVD-ROM 24X CD-R 16X CD-RW 8X DVD+R 4X KB/sec 10,800 KB/sec 5,400 KB/sec 2,700 KB/sec 6,750 KB/sec Multiword DMA Mode DVD±RW Double-Layer Combo Drive specifications 129 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 138
Backup and recovery Backup and recovery in Windows 7 Overview To protect your information, use Windows Backup and Restore to back up individual files and folders, back up your entire hard drive (select models only), create system repair discs (select models only), or create system restore points. In - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 139
double-layer (DL) support store more information than CDs, so using them for backup reduces the number of recovery discs required. ● When backing up to discs, number each disc before inserting it into the optical drive of the computer. To create a backup using Backup and Restore , follow these steps - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 140
Startup Repair to fix problems that might prevent Windows from starting correctly. ● f11 recovery tools: You can use the f11 recovery tools to recover your original hard drive image. The image includes the Windows operating system and software programs installed at the factory. NOTE: If you are - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 141
Menu" message is displayed at the bottom of the screen. 4. Press f11 to enter HP Recovery. 5. Follow the on-screen instructions. Using a Windows 7 operating system DVD (purchased separately) If you are unable to boot (start up) your computer and you cannot use the system repair discs you previously - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 142
screen instructions. Backup and recovery in Windows Vista Overview To protect your information, use Backup and Restore to back up individual files and folders, back up your entire hard drive (select models only), or create system restore optional external hard drive, a network drive, or discs. Note - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 143
to fix problems that might prevent Windows from starting correctly. ● f11 recovery tools: You can use the f11 recovery tools to recover your original hard drive image. The image includes the Windows operating system and software programs installed at the factory. Backup and recovery in Windows Vista - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 144
> Backup and Restore. 2. Follow the on-screen instructions to recover your entire computer (select models only) or your files. NOTE: Windows includes the User Account Control feature to improve the security of your computer. You may be prompted for your permission or password for tasks such - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 145
)" section in this guide. 3. Turn on or restart the computer, and then press esc while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the screen. 4. Press f11 to enter HP Recovery. 5. Follow the on-screen instructions. Using a Windows Vista operating system DVD - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 146
hard drive or to a network drive. Note the following when backing up: ● Store personal files in the My Documents folder, and back it up periodically. ● Back up templates stored in their associated programs. ● Save customized settings that appear in a window, toolbar, or menu bar by taking a screen - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 147
, and updates not installed by HP must be manually reinstalled. To recover your operating system and programs, follow these steps: 1. If possible, back up all personal files. 2. Insert the Operating System disc into the optical drive. 3. Shut down the computer. Backup and recovery in Windows XP 139 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 148
4. Turn on the computer. 5. Follow the on-screen instructions to install the operating system. 6. After the operating system is installed, remove the Operating System disc and insert the Driver Recovery disc. 7. Follow the on-screen instructions to install the drivers and programs. 140 Chapter 7 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 149
8 Connector pin assignments Audio-in (microphone) Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Audio-in (microphone) 141 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 150
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 142 Chapter 8 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 151
2 shield TMDS data 2- TMDS data 1+ TMDS data 1 shield TMDS data 1- TMDS data 0+ TMDS data 0 shield TMDS data 0- TMDS clock+ TMDS clock shield TMDS clockConsumer electronic control (CEC) Not connected DDC clock DDC data Ground +5V power Hot plug detect HDMI 143 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 152
RJ-11 (modem) Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused 144 Chapter 8 Connector pin assignments - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 153
RJ-45 (network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused 5 Unused 6 Receive - 7 Unused 8 Unused Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground RJ-45 (network) 145 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 154
for use in the country or region where the equipment is purchased. Power cord sets for use in other countries and regions must meet the a nominal voltage rating of 125 or 250 V AC, as required by the power system of each country or region. ● The appliance coupler must meet the mechanical - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 155
Requirements for specific countries and regions Country/region Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA 2 Denmark DEMKO 1 Finland FIMKO 1 France UTE 1 Germany VDE 1 Italy IMQ 1 Japan METI 3 The Netherlands - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 156
battery in general household waste. Follow the local laws and regulations in your area for computer battery disposal. Display display (LCD) panel (2). NOTE: The procedures provided in this chapter are general disassembly instructions. Specific details, such as screw sizes, quantities, and locations - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 157
Perform the following steps to disassemble the display assembly: 1. Remove all screw covers (1) and screws (2) that secure the display bezel to the display assembly. 2. Lift up and out on the left and right inside edges (1) and the top and bottom inside edges (2) of the display bezel until the bezel - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 158
all screws (1) that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside-down. 8. Remove all screws that secure the display panel frame to the display panel. 9. Use a sharp-edged - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 159
10. Remove the display panel frame (2) from the display panel. 11. Remove the screws (1) that secure the backlight cover to the display panel. 12. Lift the top edge of the backlight cover (2) and swing it outward. 13. Remove the backlight cover. 14. Turn the display panel right-side up. Display 151 - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 160
15. Remove the backlight cables (1) from the clip (2) in the display panel. 16. Turn the display panel upside-down. WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 161
frame. 19. Disconnect the display panel cable (1) from the LCD panel. 20. Remove the screws (2) that secure the LCD panel to the display rear panel. 21. Release the LCD panel (3) from the display rear panel. 22. Release the tape (4) that secures the LCD panel to the display rear panel. 23. Remove - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 162
130 Windows Vista 134 Windows XP 138 Backup and Restore 130, 131, 134, 135 base enclosure spare part number 29 battery removal 53 spare part number 29, 53 battery bay 19 battery release latches, identifying 19 battery, identifying 23 bays, battery 19 BIOS administrator password 111 Bluetooth module - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 163
recycling 148 display enclosure spare part number 33 Display Hinge Kit spare part number 32 Display Hinge Kit, spare part number 93 display panel removal 93 display specifications 123, 125, 126 drive button optical drive 17 DriveLock automatic 111 password 111 Driver Recovery disc 139 drives boot - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 164
power requirements 6 processors 1 product name 1 security 6 serviceability 8 wireless 5 product name 1 R recovery partition 133, 136 release latches, battery 19 removal/replacement preliminaries 46 procedures 51 restore factory settings 109 restore security defaults 109, 115 restoring the hard drive - HP 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 165
and selecting 107, 117 restoring factory settings 108, 117 Security menu 111, 119 System Configuration menu 112, 120 slots ExpressCard 18 security cable 18 speaker identifying 13 speakers removal 87 spare part number 29, 87 specifications computer 122 display 123, 125, 126 DVD-ROM Drive 128 DVD±RW
Compaq 320 Notebook PC
Compaq 321 Notebook PC
Compaq 420 Notebook PC
Compaq 421 Notebook PC
Compaq 620 Notebook PC
Compaq 621 Notebook PC
HP 420 Notebook PC
HP 620 Notebook PC
Maintenance and Service Guide