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Compaq 320 - Notebook PC Manual
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- Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 2
and other countries. Microsoft, Windows, and Windows Vista are U.S. registered trademarks of Microsoft 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 3
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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 4
iv Safety warning notice - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 5
19 Multimedia components ...20 Wireless antennas (select models only 22 Additional hardware components 23 3 Illustrated 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 6
68 Keyboard ...73 Top cover ...77 Power switch board 82 Bluetooth module ...84 USB connector assembly 85 Speaker ...87 Display assembly ...88 System board ...96 Main battery connector 100 RTC battery ...102 Modem module ...103 Audio board ...105 5 Computer Setup ...107 Computer Setup in Windows - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 7
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 7 130 Overview ...130 Backing up your information 130 Performing a recovery 132 Using the Windows recovery tools 132 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 8
External monitor ...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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 9
chipset Discrete 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 11
768 BrightView ● 1366×768 BrightView for Webcam 2 customer-accessible/upgradable memory • • • module slots Supports dual-channel memory • • • Supports up to 4 GB of system RAM • • • PC3-10600, 1333-MHz, DDR3 • • • Supports the following configurations in all • • • countries and - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 12
Category Optical drives Diskette drive Audio/Visual Modem Ethernet Description Supports the following drives: ● 500-GB, 7200-rpm ● 500-GB, 5400-rpm ● 320-GB, 7200-rpm ● 320-GB, 5400-rpm ● 250-GB, 7200-rpm ● 250-GB, 5400-rpm ● 160-GB, 7200-rpm ● 160-GB, 5400-rpm HP DriveGuard (not available on Linux - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 13
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 Capacity (SDHC) Memory Card, MultiMediaCard (MMC) formats Audio-in (microphone - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 14
wire plug with ground pin) 6-cell, 47-Wh Li-ion battery • • • 9-cell, 93-Wh Li-ion battery • • • Security Supports Kensington security lock • • • Operating system Preinstalled with Microsoft Office: • • • Windows 7 Home Premium 32 with Office • • • 2007 Ready (excludes Japan - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 15
7 Professional 32 with XP Pro • • • images with Office 2007 Personal (Japan only) Windows 7 Professional 32 with XP Pro • • • images with Office 2007 Personal with PowerPoint (Japan only) Windows 7 Professional 32 with XP Pro • • • images with Office 2007 Professional (Japan only - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 16
's Republic 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 17
Category Description Memory module Keyboard Optical drive WLAN module UMA graphics, GL40 chipset UMA graphics, GM45 chipset Discrete graphics, PM45 chipset • • • • • • • • • • • • 9 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 20
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 devices are off. 12 Chapter 2 External component identification - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 21
briefly to exit Suspend. ● When the computer is in Hibernation, press the button briefly to exit Hibernation. If the computer has stopped responding and Windows shutdown procedures are ineffective, press and hold the power button for at least 5 seconds to turn off the computer. Top Components 13 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 22
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 off the wireless devices simultaneously. Execute frequently used system functions when pressed in combination with the fn key. Can be - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 23
Component (1) esc key (2) fn key (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 used system functions when pressed in combination with a function key, - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 24
Front components Component (1) SD Card Reader (2) Audio-out (headphone) jack (3) Audio-in (microphone) jack Right-side components Description Supports the following optional digital card formats: ● MultiMediaCard (MMC) ● MultiMediaCard 4.2 (MMC Plus, including MMC Plus HC) ● Secure Digital (SD) - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 26
-side components Component (1) ExpressCard slot (2) Security cable slot (3) Vent (4) External monitor port (5) Battery light (6) Power connector (7) RJ-45 (network) jack (8) HDMI port (9) USB port (1) Description Supports optional ExpressCards. Attaches an optional security cable to the computer - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 28
agency that regulates wireless devices in your country. If you 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 light (select models - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 29
Component (2) Webcam (select models only) (3) Integrated microphone (4) Audio-in (microphone) jack (5) Audio-out (headphone) jack (6) Speaker Description Records audio and video and captures still photographs. Records sound. Connects an optional computer headset microphone, stereo array microphone, - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 30
and Support. Component Description (1) WWAN antennas (2)* (select models only) Send and receive wireless signals to communicate with wireless wide- transmission, keep the areas immediately around the antennas free from obstructions. To see wireless regulatory notices, refer to the section of - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 31
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 country or region. Additional hardware - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 32
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 for your computer - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 33
Service tag 25 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 34
Computer major components 26 Chapter 3 Illustrated parts catalog - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 35
WLAN and webcam (1366×768 resolution) 605812-001 (2) Keyboard NOTE: For a detailed list of available keyboards, see HP 35.6-cm (14.0-in) computers 605780-001 For use in Compaq 35.6-cm (14.0-in) computers 605781-001 For use in HP 39.6-cm (15.6-in) computers 605782-001 For use in Compaq - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 36
HP 35.6-cm (14.0-in) computers 605775-001 Top cover for Compaq 35.6-cm (14.0-in) computers 605776-001 Top cover for HP 39.6-cm (15.6-in) computers 605777-001 Top cover for Compaq RTC battery and replacement thermal material) System board with discrete graphics and RTC battery with PM45 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 37
Bluetooth module 537921-001 HP Integrated module with Bluetooth 2.1 wireless Iceland, India, Indonesia, (includes replacement thermal material -001 (17) Speaker 605792-001 (18) Audio board 605797-001 (19) Base enclosure For Battery 9-cell, 93-Wh, 2.8-Ah 593573-001 6-cell, - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 38
(22) WLAN module Broadcom 4313AGN 802.11a/b/g/draft-n WiFi Adapter 593836-001 Broadcom 4312G 802.11b/g WiFi adapters: ● For use in Antigua and Barbuda, Barbados Greece, Guatemala, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 40
.8-cm (13.3-in) LCD bezel with webcam HP 35.6-cm (14.0-in) LCD bezel without webcam HP 35.6-cm (14.0-in) LCD bezel with webcam Compaq 35.6-cm (14.0-in) LCD bezel without webcam Compaq 35.6-cm (14.0-in) LCD bezel with webcam HP 39.6-cm (15.6-in) LCD bezel without webcam HP 39.6-cm (15.6-in) LCD bezel - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 41
WLAN transceiver cable LCD cable LCD cable with webcam 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 44
Mass storage devices Item Description (1) Hard drive (includes bracket) 500-GB, 7200-rpm 500-GB, 7200-rpm for use in 39.6-cm (15.6-in) computers 320-GB, - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 45
in Australia and New Zealand For use in Brazil For use in Denmark For use in Europe, the Middle East, and Africa For use in India For use in Israel For use in Italy For use in Japan For use in the People's Republic of China For use in South Africa - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 47
number listing Spare part number Description 449137-001 RTC battery 463958-001 65-W AC adapter for use in , Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Ireland, Israel, Italy, the Ivory Coast, Jamaica, Jordan, Kazakhstan, Kenya, Kiribati, - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 48
MHz FSB, 2-MB cache 537921-001 Bluetooth module with Bluetooth 2.1 wireless technology 572520-001 Intel Wi-Fi Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy WiFi Adapter 593572-001 Battery, 6-cell, 47 Wh, 2.2 Ah for use in computers with 15.6-in displays 593573-001 Battery - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 49
(14.0-in) LCD bezel without webcam 605754-001 HP 35.6-cm (14.0-in) LCD bezel with webcam 605755-001 Compaq 35.6-cm (14.0-in) LCD bezel without webcam 605756-001 Compaq 35.6-cm (14.0-in) 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 50
HP 39.6-cm (15.6-in) computers (does not include TouchPad board and cable) 605783-001 Palm rest with TouchPad for Compaq 39.6-cm (15.6-in) computers (does not include TouchPad board and cable) 605784-001 Service board 605797-001 Audio board 605798-001 without webcam (1366×768 resolution) - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 51
(13.3-in) HD BrightView display assembly for use in computers with WLAN and webcam (1366×768 resolution) 605813-001 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for use in the United States 605813-031 Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for use - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 52
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 for use in Finland 605813-BA1 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 53
-DD1 Keyboard for 39.6-cm (15.6-in) computers for use in Iceland 605814-DJ1 Keyboard for 39.6-cm (15.6-in) computers for use in Greece 605814-DW1 Keyboard for 001 90W PFC AC adapter EM 609948-001 65W AC adapter EM 611026-001 Webcam 611027-001 250-GB, 7200-rpm hard drive for use in computers with - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 54
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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 55
that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 56
V 4,000 V 14,500 V 5,000 V 26,500 V 21,000 V 20,000 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 57
surface and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When fixtures assemblies by the case or PCM laminate. Handle these items only at static-free workstations. ● Avoid contact with pins, leads, or circuitry. ● Turn - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 58
with ground cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes, or boxes ● Metal tote boxes ● Electrostatic voltage levels and - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 59
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 for the computer - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 60
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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 61
down on a flat surface with the battery bay toward you. 2. Slide the battery release latches (1) to release the battery. 3. Remove the battery (2) from the computer. Install the battery by inserting it into the battery bay until you hear a click. Service door Description For use in computers with - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 62
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: 1. Remove four Phillips PM2.0×3.0 screws (1) that secure the - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 63
2. Slide the service door (2) away from the computer. Reverse this procedure to install the switch cover. Component replacement procedures 55 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 64
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 the computer right-side - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 65
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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 66
To remove the hard drive bracket, 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 Reverse this procedure to reassemble and install the hard drive. 58 Chapter 4 Removal and replacement procedures - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 67
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 module: 1. Position the computer right-side up with the front toward you - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 69
, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Ireland, Israel, Italy, the Ivory Coast, Jamaica Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Ivory Coast, 802.11a/b/g/draft-n WiFi Adapter 593836-0001 Atheros 9285G 802.11 b/g/n WiFi Adapter for use - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 70
wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore computer functionality, and then contact technical support through Help and Support the battery (see Battery on page 53). 5. Remove the service door (see Service door - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 71
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 side toward you. 2. Remove - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 72
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 fan: 1. Position the computer upside down with the front toward you. 2. Disconnect - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 73
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 fan (see Fan on page 64). Remove the heat sink on computers with UMA - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 the system 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 75
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 fan (see Fan on page 64). 7. Remove the heat sink (see Heat sink on page - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 76
) Palm rest for Compaq brand units with 35.6-cm (14-in) displays (includes TouchPad) Palm rest for Compaq brand units with 33.8-cm (13.3-in) displays (includes TouchPad) Palm rest for HP brand units with 39 external devices connected to the computer. 68 Chapter 4 Removal and replacement procedures - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 77
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 palm rest on top edge of the palm rest nearest the keyboard. With the palm rest at an angle, slide the unit (2) to release the latches at - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 79
. Remove the TouchPad board: 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 81
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). Remove the keyboard on 39.6-cm (15.6-in) computers: 1. Position the computer upside down - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 82
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. Remove the keyboard on 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers: 1. Position the computer upside down with the rear toward - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 85
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 page 73). Remove the top cover on a 39.6-cm (15 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 88
, 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 M2.5×6.0 screws (2), (3), and (4), and the two Phillips - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 90
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 keyboard (see Keyboard on page 73). 82 Chapter 4 Removal and - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 91
, raise the end of 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 92
Bluetooth removing the Bluetooth module, follow battery (see Battery on page 53). 5. Remove the palm rest (see Palm rest on page 68). 6. Remove the keyboard (see Keyboard on page 73). 7. Remove the top cover (see Top cover on page 77). Remove the Bluetooth adhesive. Remove the Bluetooth module on 35.6- - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 93
enclosure with adhesive. Reverse this procedure to install the Bluetooth module. USB connector assembly The spare part number for 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 on page 73 replacement procedures 85 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 95
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 page 73). 8. Remove the top cover (see Top cover - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 96
assembly for use in computers with WLAN but without webcam (1366×768 resolution) Spare part number 605804-001 605803 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 97
display open as far as it will comfortably go. CAUTION: Support the display assembly when removing the retaining screws. Failure to support the display assembly can result in damage to the display screws. 5. Lift the display assembly (3) from the base enclosure. Component replacement procedures 89 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 98
display open as far as it will comfortably go. CAUTION: Support the display assembly when removing the retaining screws. Failure to support the display assembly can result in damage to the display the display assembly (3) from the base enclosure. 90 Chapter 4 Removal and replacement procedures - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 99
Remove the display assembly: 1. If it is necessary to replace the display bezel, display enclosure, or display hinges, remove the two mylar screw covers (1) and the to release the bezel from the display enclosure . 3. Lift the bezel (4) from the display enclosure. Component replacement procedures 91 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 100
module (2) 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 101
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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 102
2. Remove the microphone 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 out of the routing channels in the inside of the display enclosure. 94 Chapter 4 Removal and replacement procedures - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 103
2. Peel the WLAN antenna receivers (2) from the enclosure Reverse this procedure to assemble the display assembly. Component replacement procedures 95 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 104
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 68). 10. Remove the keyboard (see Keyboard on page 73). 11. Remove the top cover (see Top cover on page 77). When replacing the system board, be - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 105
39.6-cm (15.6-in) 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 system board. 3. Remove .0×3.0 screw (1) that secures the extender to the base enclosure. Component replacement procedures 97 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 107
PM2.0×3.0 screw (1) that secures the board to the base enclosure, disconnect the audio ZIF connector and remove the flat-ribbon cable (2) from the system board. the system board at an angle (3) and disconnect the main battery cable (4) from the bottom of the board. Component replacement procedures 99 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 108
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 hard drive (see Hard drive on page 56). 7. Remove the optical drive (see - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 110
from the computer. 4. Remove the battery (see Battery on page 53). 5. Remove the service door (see Service door on page 53). 6. keyboard (see Keyboard on page 73). 11. Remove the top cover (see Top cover on page 77). 12. Remove the system board (seeSystem board on page 96). Remove the RTC battery - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 111
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 hard drive (see Hard drive on page 56). 7. Remove the optical drive (see - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 113
(see Keyboard on page 73). 11. Remove the top cover (see Top cover on page 77). 12. Remove the system board (seeSystem board on page 96). Remove the audio board from 39.6-cm (15.6-in) computers: 1. Position the computer right-side up with the front toward you. Component replacement procedures 105 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 115
in Windows 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. NOTE: An external keyboard - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 116
the File, Security, or System Configuration menu. To exit Computer Setup menus, choose one of the following methods: ● To exit Computer Setup menus without saving your changes, click the Exit icon in the lower-left corner of the screen, and then follow the on-screen instructions. - or - Use the tab - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 117
default To do this ● View identification information for the computer and the batteries in the system. ● View specification information for the processor, cache and memory size, system ROM, video revision, and keyboard controller version. Set or change the date and time on the computer. Displays - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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. - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 119
supported by your computer. Select Setup BIOS Administrator Password User Management > Create a New BIOS User Account (requires a BIOS administrator password) Password Policy (requires a BIOS administrator password) HP SpareKey Always Prompt for HP and ownership tag. Computer Setup in Windows 111 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 120
URL (enabled by default). ● Enable/disable CD-ROM boot (enabled by default). ● Enable/disable SD Card boot (enabled by default). ● Enable/ legacy support (enabled by default). When enabled, USB legacy support allows the following: ◦ Use of a USB keyboard in Computer Setup even when a Windows - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 QuickWeb Enable/disable Num lock state at boot (disabled by default). Computer Setup in Windows 113 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 122
wireless button state (enabled by default). ● Enable/disable embedded WWAN device (select models only; enabled by default). ● Enable/disable embedded WLAN device (enabled by default). ● Enable/disable embedded Bluetooth the notebook monitor circuit (enabled by default). ● Enable/disable the audio - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 123
/disable AMT setup prompt (Ctrl-P) ● Enable/disable USB key provisioning support. ● Enable/disable unconfigure AMT on next boot. ● Select terminal ◦ ANSI (default setting) ◦ VT100 ● Enable/disable firmware progress event support. ● Enable/disable initiate Intel CIRA. Change, view, or hide security - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 124
Computer Setup menu items listed in this guide may not be supported by your computer or your operating system. NOTE: Pointing devices are not supported in Computer Setup. You must use the keyboard to navigate and make selections. NOTE: An external keyboard connected by USB can be used with Computer - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 125
File, Security, or System Configuration menu. 3. To exit Computer Setup, choose one of the following methods: ● To exit Computer Setup without saving your preferences, use the arrow keys to select File > Ignore Changes And Exit. Then follow the instructions on the screen. ● To save your preferences - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 126
Save Changes And Exit To do this ● View identification information for the computer. ● View specification information for the processor, cache and memory size, and system ROM. Replace the configuration settings in Computer Setup with the original factory settings. (Password settings and security - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 127
, the data on the primary hard drive is destroyed permanently. Diagnostics menu NOTE: Some of the menu items listed in this section may not be supported by your computer or your operating system. Select HDD Self-Test Options Memory Check To do this Run a comprehensive self-test on any hard drive - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 128
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 keyboard in Computer Setup even - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 130
6 Specifications Computer specifications Metric U.S. Dimensions - 39.6-cm (15.6-in) Depth ) (equipped with optical drive, < 2.59 kg WXGA display assembly, 1 memory module, hard drive, and 9-cell battery) < 5.70 lbs Weight - 35.6-cm (14.0-in) (equipped with optical drive, < 2.26 kg WXGA display - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 131
. The computer operates well within this 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 Backlight Response Time Metric U.S. 19.35 cm 7.6 in 34.42 cm 13.5 in 39 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 132
Total power consumption Viewing angle @CR>10 Metric 5.6 W (max) 5 VA U.S. 124 Chapter 6 Specifications - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 135
to 131°F) (41°F to 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 136
-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, Form - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 137
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 DVD+RW 8X DVD-R 4X DVD-RW 2.4X DVD+R(9) 5X DVD-RAM Transfer mode Read: Write: CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 138
the computer to a previous state ● Recovering information using recovery tools NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability, HP recommends that you print the recovery procedures and save them for later use. Backing up - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 139
on file size and the speed of the computer. 1. Select Start > All Programs > Maintenance > Backup and Restore. 2. Follow the on-screen instructions to set software, running utilities, or changing Windows settings. Refer to Help and Support for more information. Backup and recovery in Windows 7 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 140
system DVD (purchased separately)" section in this guide. 3. If the Windows partition and the HP Recovery partition are listed, restart the computer, and then press f8 before the Windows operating system loads. 4. Select Startup Repair. 5. Follow the on-screen instructions. 132 Chapter 7 Backup and - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 141
in this guide. 3. If the HP Recovery partition is listed, 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 7 operating - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 142
. 5. Click Next. 6. Select Repair your computer. 7. Follow the on-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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 143
. You may be prompted for your permission or password for tasks such as installing software, running utilities, or changing Windows settings. Refer to Help and Support for more information. Performing a recovery In case of system failure or instability, the computer provides the following tools to - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 144
DVD (purchased separately)" section in this guide. Using the Windows recovery tools To recover information you previously backed up, follow these steps: 1. Click Start > All Programs > Maintenance > Backup and Restore. 2. Follow the on-screen instructions to recover your entire computer (select - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 146
recovery points ● Recovering information NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability, HP recommends that you print the recovery in a window, toolbar, or menu bar by taking a screen shot of your settings. The screen shot - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 147
, and then click Next. 4. Follow the on-screen instructions. NOTE: For additional information on initiating a recovery in Windows, perform a search for this topic in Help and Support. Recovering the operating system and programs CAUTION: The recovery process reformats and completely erases the hard - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 148
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 Backup and - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 150
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 Connector pin assignments - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 151
HDMI Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Signal Transition minimized differential signal (TMDS) data 2+ TMDS data 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 154
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 configuration of an EN 60 320/IEC 320 Standard Sheet C13 connector for mating with the appliance inlet on the back of the computer. 146 Chapter - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 155
Requirements for specific countries and regions Country/region Accredited agency Applicable note number Japanese Industrial Standard C8303 (7 A, 125 V) configuration. 4. The flexible cord must be Type RVV, 3-conductor, 0.75-mm² conductor size. Power cord set fittings (appliance coupler and - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 156
battery in general household waste. Follow the local laws and regulations in your area for computer battery HP Web site at http://www.eiae.org. This section provides disassembly instructions instructions. Specific details, such as screw sizes, quantities, and locations, and component shapes and sizes - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 158
4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2). 5. Remove all screws (1) that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside- - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - 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 the mercury. 17. Remove the - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 161
18. Remove the backlight from the backlight frame. 19. Disconnect the display panel cable (1) from the LCD panel. 20. Remove the screws (2) that secure the LCD panel to the display rear panel. 21. Release the LCD panel (3) from the display rear panel. 22. Release the tape (4) that secures the LCD - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 162
ambient light sensor 114 audio device 114 bay device 114 Bluetooth device 114 fingerprint reader 114 integrated camera 114 internal speakers 114 microphone 114 modem 114 Network Interface Controller (LAN) 114 options 114 power monitor circuit 114 Wake on LAN 114 wireless button 114 WLAN device - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 163
panel removal 93 display specifications 123, 125, 126 drive button optical drive 17 DriveLock automatic 111 password 111 Driver Recovery disc 139 drives support, USB 107, 112, 116, 120 lights caps lock 11 optical drive 17 power 12 webcam 20 wireless 12 M main battery cable removal 100 mass storage - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 164
2 hard drives 3 keyboard 6 memory module 3 modem module 4 operating system 6 optical drives 4 panels 2 pointing devices 6 ports 5 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 - Compaq 320 | Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 - Page 165
webcam light, identifying 20 webcam module spare part number 32 webcam, identifying 21 Windows 7 operating system DVD 133 Windows Backup utility 138, 139 Windows recovery 132, 135, 139 Windows Vista operating system DVD 137 wireless antenna, disconnecting 62 wireless light, identifying 12 wireless
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Maintenance and Service Guide