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Compaq 321 - Notebook PC Manual
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- Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - 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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - 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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 3
MSG revision history Revision A Publication date October 2010 Description Updated AC adapter part numbers: ● 613149-001-65-W AC adapter for use with computers with UMA graphics ● 613150-001-90-W AC adapter for use with computers with discrete graphics iii - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 4
iv MSG revision history - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 5
, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 6
vi Safety warning notice - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 7
TouchPad ...9 Lights ...10 Buttons, switch, and speaker 11 Keys ...12 Front Wireless antennas (select models only 19 Additional hardware components ...20 3 Illustrated parts catalog ...21 Service and replacement procedures ...42 Preliminary replacement requirements 42 Tools required ...42 Service - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 8
replacement procedures 47 Service tag ...47 Computer feet ...48 Battery ...49 Service door ...49 Hard drive ...52 Memory module ...55 WLAN module ...57 Optical drive ...58 Fan ...60 Heat sink ...61 Processor ...62 Palm rest ...64 Keyboard ...69 Top cover ...73 Power switch board ...78 Bluetooth - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 9
131 Backup and recovery in Windows XP 132 Overview ...132 Backing up your information 132 Performing a recovery ...133 Recovering your information 133 Recovering the operating system and programs 133 8 Connector pin assignments ...134 Audio-in (microphone) ...134 Audio-out (headphone) ...134 ix - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 10
-11 (modem) ...137 RJ-45 (network) ...138 Universal Serial Bus ...138 9 Power cord set requirements ...139 Requirements for all countries and regions 139 Requirements for specific countries and regions 140 10 Recycling ...141 Battery ...141 Display ...141 Index ...147 x - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 11
1 Product description Category Product Name Processors Description 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-MHz FSB - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 12
) 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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 13
Category Hard drives Optical drives Description 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 regions: ● 4096-MB total system memory (4096- MB × 1) ● 4096-MB total system memory (2048- MB× 2, dual- - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 14
Integrated 2MP camera with fixed focus √ √ √ (select models only) 56K V.92 3.8 cm (1.5-in) data/fax modem √ √ √ Supports no modem (1 x 2) Integrated wireless personal area network (WPAN) options by way of Bluetooth® module: Support option for no-WPAN √ √ √ Bluetooth 2.1 √ √ √ One - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 15
default) 65-W non-Smart AC adapter √ √ 90-W non-Smart AC adapter √ 6-cell, 47-Wh Li-ion battery √ √ √ 9-cell, 93-Wh Li-ion battery √ √ √ Supports Kensington security lock √ √ √ Preinstalled with Microsoft Office: √ √ √ Windows 7 Home Premium 32 with Office √ √ √ 2007 Ready - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 16
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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 17
'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 √ √ √ 7 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 18
Category Serviceability Description SuSE Linux End-user replaceable parts: AC adapter Battery (system) Hard drive Memory module Keyboard Optical drive WLAN module UMA graphics, UMA graphics, Discrete GL40 chipset GM45 chipset graphics, PM45 chipset √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 19
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 20
Lights NOTE: Refer to the illustration that most closely matches your computer. Component (1) Caps lock light (2) Power light (3) Wireless light 10 Chapter 2 External component identification Description On: Caps lock is on. ● On: The computer is on. ● Blinking: The computer is in the Suspend - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - 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 11 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - 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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 23
key (3) Function keys (4) Embedded numeric keypad keys (5) Wireless key Description Displays system information when pressed in combination . Because the wireless devices are enabled at the factory, use the wireless key to turn on or turn off the wireless devices simultaneously. Top Components 13 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - 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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 25
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 optional - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 26
Bottom components Component (1) Battery release latches (2) (2) Battery bay Description Release the battery from the battery bay. Holds the battery. 16 Chapter 2 External component identification - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 27
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. Component (1) Webcam light (select models only) (2) Webcam (select models only) Description On: The webcam is in use. Records audio - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 28
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 to the headphone jack, the computer speakers are disabled. Produces sound. 18 Chapter 2 External - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 29
Notices that 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 30
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 country or - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 31
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 32
22 Chapter 3 Illustrated parts catalog - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 33
Computer major components Computer major components 23 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 34
in computers with WLAN and webcam (1366×768 resolution) 605812-001 Keyboard NOTE: For a detailed list of available keyboards, see Sequential part number 001 For use in Compaq 39.6-cm (15.6-in) computers 605783-001 TouchPad board 605795-001 Top cover Top cover for Compaq 33.8-cm (13.3- - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 35
Compaq 39.6-cm (15.6-in) computers 605778-001 Heat sink For use in computers with UMA graphics subsystems 605749-001 For use in computers with discrete graphics subsystems 605750-001 Fan 605791-001 Power switch board 605794-001 System board (includes RTC battery and replacement thermal - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 36
MHz FSB, 3-MB cache Speaker Audio board Base enclosure For use in Battery 9-cell, 93-Wh, 2.8-Ah 6-cell, 47-Wh, 2.2-Ah Memory module 2-GB (PC3-10600, 1333-MHz, DDR3) 1-GB (PC3-10600, 1333-MHz, DDR3) WLAN module Broadcom 4313AGN 802.11a/b/g/draft-n WiFi Adapter Broadcom 4312G 802.11b/g WiFi adapters - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 37
, Greece, Guatemala, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan, Jordan Atheros 9285G 802.11b/g/n WiFi Adapter for use in all countries and regions 605560-005 Realtek RTL8191SE 802.11b/g/n WiFi Adapter for use in all countries - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 38
Item (24) (25) Description Optical drive (includes bezel) DVD-ROM Drive DVD±RW Double-Layer Drive with LightScribe Access door 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 608140-001 608141-001 605784-001 605785-001 28 Chapter 3 Illustrated - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 39
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 with webcam Compaq 39.6-cm (15.6-in) LCD bezel without webcam Compaq 39.6-cm (15.6-in) LCD - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 40
for use in 35.6-cm (14-in) computers Display panel BrightView with webcam for use in 35.6-cm (14-in) computers 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 41
Item (1) (2) Description Dummy ExpressCard Dummy optical drive Cables Spare part number Item Description Cable Kit , includes: (1) Bluetooth cable (2) RJ-11 cable (3) Main battery connector Spare part number 605793-001 Cables 31 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 42
(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 32 Chapter 3 Illustrated parts catalog - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 43
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, 7200-rpm 320-GB, 7200-rpm for use in 39.6-cm (15.6-in) computers 250-GB, 7200-rpm 250-GB, 7200-rpm for use in 39.6-cm (15.6-in) computers 250-GB, - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 44
with UMA graphics 90-W AC adapter for use with computers with discrete graphics Power cords For use in Argentina For use 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 45
-001 510100-001 510100-011 513598-001 513599-001 532324-001 Description RTC battery Power cord for use in the United States Power cord for use in , Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Ireland, Israel, Italy, the Ivory Coast, Jamaica, Jordan, Kazakhstan, - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 46
, 2-MB cache Bluetooth module with Bluetooth 2.1 wireless technology Intel Wi , India, Indonesia WiFi Adapter Battery, 6-cell, 47 Wh, 2.2 Ah for use in computers with 15.6-in displays Battery Compaq 33.8-cm (13.3-in) LCD bezel without webcam Compaq 33.8-cm (13.3-in) LCD bezel with webcam HP 35 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 47
(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 with webcam Compaq 39.6-cm (15.6-in) LCD bezel without webcam Compaq 39.6-cm (15.6-in) LCD bezel with webcam Compaq 33.8-cm (13.3-in) display - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 48
in) computers Screw Kit Fan Speaker Cable Kit Power switch board TouchPad board USB board Audio board Hard drive extender Optical drive extender for 39 WLAN and webcam (1366×768 resolution) Keyboard for 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers for use in the United States Keyboard for 35.6- - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 49
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 50
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 001 Display panel AntiGlare without webcam for use in 39.6-cm (15.6-in) computers 608143-001 Display panel AntiGlare with webcam for use in 39.6-cm - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 51
Webcam 250-GB, 7200-rpm hard drive for use in computers with 39.6-cm (15.6-in) displays 320-GB, 7200-rpm hard drive for use in computers with 39.6-cm (15.6-in) displays 500-GB, 7200-rpm hard drive for use in computers with 39.6-cm (15.6-in) displays 65-W AC adapter - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 52
the removal and replacement procedures: ● Flat-bladed screwdriver ● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers ● Torx T8 screwdriver Service considerations The following only at the points designated in the maintenance instructions. 42 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 53
When servicing the computer that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. Drive you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 54
V 26,500 V 21,000 V 800 V 700 V 4,000 V 5,000 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 44 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 55
transporting equipment: ● To avoid hand contact, transport products in static- tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums Turn off power and input signals before inserting or removing connectors or test equipment. Preliminary replacement - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 56
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 Voltage protection level 1,500 V 7,500 V 5,000 V 46 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 57
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 58
for 39.6-cm (15.6-in) computers. There are 4 rubber feet that attach to the base enclosure in the locations illustrated below. 48 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 59
then unplugging the AC adapter from the computer. Remove the battery: 1. Turn the computer upside 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 60
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 49). 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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 61
2. Slide the service door (2) away from the computer. Reverse this procedure to install the switch cover. Component replacement procedures 51 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 62
you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 63
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 53 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 64
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. 54 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 65
adding a second memory module, are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on replacement procedures 55 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 66
Reverse this procedure to install a memory module. 56 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 67
, Hong Kong, Hungary, Iceland, India, Ireland, Israel, Italy, the 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 Adapterf or use in all countries and regions 593533-001 Component replacement - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 68
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 49). 5. Remove the service door (see Service door on page 49). Remove the WLAN module: 1. Disconnect the WLAN antenna cables (1) from the - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 69
the computer is off or in Hibernation, turn the computer on, and then shut it down adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service the computer. 5. If it is necessary to replace the optical drive bracket, position the optical drive - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 70
. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 71
The heat sink spare part kit includes replacement thermal material. Description Heat sink for the computer is off or in Hibernation, turn the computer on, and then shut it down AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 72
sink, loosen the captive screws (1) and (2) around the processor. 3. Lift the heat sink (3) from the system board. Processor NOTE: The processor spare part kit includes replacement thermal material. 62 Chapter 4 Removal and - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 73
and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. to turn the processor locking screw (1) one-half turn counterclockwise until you hear a click. Component replacement procedures 63 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 74
Palm rest for Compaq units with 39.6-cm (15.6-in) displays (includes TouchPad) Palm rest for Compaq brand units are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the adapter from the computer. 64 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 75
battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). Remove the palm rest on 39.6-cm (15.6-in) computers: 1. Position the computer upside down with the front toward you. 2. Remove the two Torx M2.5×6.0 screws that secure the palm rest to the computer. 3. Turn - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 76
. 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. 66 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 77
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 67 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 78
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. 68 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 79
from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on page 64). Remove the keyboard on 39.6-cm (15.6-in) computers: 1. Position the - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 80
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 you. 70 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 81
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 71 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 82
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. 72 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 83
the computer is off or in Hibernation, turn the computer on, and then shut it adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on page 64). 7. Remove the keyboard (see Keyboard - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 84
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. 74 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 85
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 75 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 86
(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 PM2.0×3.0 screws (5) located in the recess near the optical drive. 76 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 87
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 77 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 88
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the keyboard (see Keyboard on page 69). 78 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 89
Remove the power switch board: 1. Release the ZIF connector (1) and disconnect the ribbon cable (2) from the system board. 2. Remove the Phillips M2.5×3.0 and then slide the board out of the retainer (3). Reverse this procedure to install the power button board. Component replacement procedures 79 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 90
and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the palm rest (see Palm rest on page 64). 6. Remove the keyboard (see Keyboard on page 69). 7. Remove the top cover (see Top cover on page 73). Remove the Bluetooth module on 39.6-cm (15 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 91
procedure to install the Bluetooth module. USB connector off or in Hibernation, turn the computer on, and adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the palm rest (see Palm rest on page 64). 6. Remove the keyboard (see Keyboard replacement procedures 81 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 92
USB connector assembly (3) that is held on the base enclosure with adhesive. Reverse this procedure to install the USB connector assembly. 82 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 93
is off or in Hibernation, turn the computer on, and adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on page 64). 7. Remove the keyboard (see Keyboard replacement procedures 83 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 94
WLAN but without webcam (1366×768 or in Hibernation, turn the computer on, adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 6. Remove the palm rest (see Palm rest on page 64). 7. Remove the keyboard (see Keyboard - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 95
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 85 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 96
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. 86 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 97
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 87 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 98
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 99
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 89 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 100
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. 90 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 101
2. Peel the WLAN antenna receivers (2) from the enclosure Reverse this procedure to assemble the display assembly. Component replacement procedures 91 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 102
then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). on page 64). 10. Remove the keyboard (see Keyboard on page 69). 11. Remove the top cover (see Top cover on page 73). When replacing the system - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 103
(2) from the system board. 6. Remove the hard drive extender by first removing the Phillips PM2.0×3.0 screw (1) that secures the extender to the base enclosure. Component replacement procedures 93 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 104
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. 94 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 105
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 95 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 106
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 49). 5. Remove the service door (see Service door on page 49). 6. Remove the hard drive (see Hard drive on page 52). 7. Remove the - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 107
2. Lift the connector up (2) and out of the base enclosure. Reverse the procedure to install the main battery connector. Component replacement procedures 97 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 108
then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page 49). 60). 9. Remove the palm rest (see Palm rest on page 64). 10. Remove the keyboard (see Keyboard on page 69). 11. Remove the top cover (see Top - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 109
is off or in Hibernation, turn the computer on, and then shut adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service rest (see Palm rest on page 64). 10. Remove the keyboard (see Keyboard on page 69). 11. Remove the replacement procedures 99 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 110
audio board, 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 system. 2. Disconnect all external devices connected to the computer. 100 Chapter 4 Removal and replacement - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 111
the AC adapter from the computer. 4. Remove the battery (see Battery on page 49). 5. Remove the service door (see Service door on page keyboard (see Keyboard on page 69). 11. Remove the top cover (see Top cover on page 73). 12. Remove the system board (seeSystem board on page 92). Remove the audio - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 112
2. Lift the audio board (2) from the base enclosure. Reverse this procedure to install the audio board. 102 Chapter 4 Removal and replacement procedures - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 113
the screen. 2. Press f10 to enter BIOS Setup. Using Computer Setup Navigating and selecting in Computer Setup The information and settings in Computer Setup are accessed from the File, Security, and System Configuration menus. To navigate and select in Computer Setup, follow these steps: 1. Turn on - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 114
can use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard to navigate and make selections in Computer Setup. 2. Press f10 to enter BIOS Setup. 3. Select the File, Security, or System Configuration menu. To exit Computer Setup menus, choose one of the following methods - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 115
Reset BIOS security to factory default Ignore Changes and Exit Save Changes and Exit 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 116
). Enter, change, or delete a BIOS administrator password. Enroll or reset HP 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 upgrade - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 117
the listed System Configuration options may not be supported by your computer. Select Language Boot Options Device Configurations To do this Change the Computer Setup language. ● Set a Startup Menu delay (in seconds). ● Set the MultiBoot Express Boot Popup delay in seconds. ● Enable/disable custom - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 118
Select To do this NOTE: Availability of these options above varies by computer model. ● Enable/disable secondary 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). ● - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 119
disable the ambient light sensor (enabled by default). ● 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 120
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. 110 Chapter 5 Computer Setup - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 121
Computer 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. Computer Setup in - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 122
and System Configuration menus. 1. Open Computer Setup by turning on or restarting the computer, and then pressing f10 while the "F10 = ROM Based Setup" message is displayed in the lower-left corner of the screen. Because Computer Setup is not operating system based, it does not support the TouchPad - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 123
the Computer Setup menu items listed in this section may not be supported by your computer or your operating system. File menu NOTE: Some of the computer. ● View specification information for the processor, cache and memory size, and system ROM. Replace the configuration settings in Computer Setup - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 124
: DriveLock settings are accessible only when you enter Computer Setup by turning on (not restarting) the computer. Enter a user-defined computer 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 125
section may not be supported by your computer or your operating system. Select Language Boot options Device Configurations To do this Change the seconds. ● Set the boot order. ◦ 1st boot device: USB CD-ROM ◦ 2nd boot device: USB floppy ◦ 3rd boot device: USB SuperDisk ◦ 4th boot device: Notebook - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 126
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 127
Specifications Computer specifications Metric Dimensions - 39.6-cm (15.6-in) Depth 24.96 cm Width 37.18 cm Height (front to rear) 2.75 to 3.55 cm Dimensions - 35.6-cm (14.0-in) Depth 22.8 cm Width 32 memory module, hard drive, and 6-cell battery) Input power Operating voltage 18.5 V - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 128
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 Total power consumption Viewing angle @CR>10 Metric U.S. 19 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 129
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 130
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 131
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 132
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, - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 133
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 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 134
and recovery Backup and recovery in Windows 7 Overview To protect your information, use Windows Backup and Restore to back up 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, - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 135
NOTE: DVDs and DVDs with double-layer (DL) support store more information than CDs, so using them for screen instructions to set up your backup, create a system image (select models only), or create a system repair disc (select models only). NOTE: Windows includes the User Account Control feature - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 136
also use Windows Startup Repair to fix problems that might prevent Windows from screen instructions to recover your entire computer (select models only) or your files. NOTE: Windows includes the User Account Control feature operating system, as well as the drivers, software, and utilities from the - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 137
external drive) is easily accessible. To order a Windows 7 operating system DVD, go to http://www.hp.com/support, select your country or region, and follow the on-screen instructions. You can also order the DVD by calling technical support. For contact information, refer to the Worldwide Telephone - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 138
using recovery tools NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability Save customized settings that appear in a window, toolbar, or menu bar by taking a screen shot of your settings. The screen shot can be a time-saver if you - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 139
layer (DL) support store more size and the speed of the computer. 1. Select Start > All Programs > Maintenance > Backup and Restore. 2. Follow the on-screen instructions to back up your entire computer (select models only) or your files. NOTE: Windows includes the User Account Control feature - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 140
guide. 3. Restart the computer, and then press f8 before the Windows operating system loads. 4. Select Repair your computer. 5. Follow the on-screen instructions. NOTE: For additional information on recovering information using the Windows tools, perform a search for these topics in Help and Support - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 141
system, as well as drivers, software, and utilities. To initiate recovery using a Windows Vista operating system DVD, Windows Vista operating system DVD into the optical drive before the Windows operating system loads. 3. When prompted, press any keyboard key. 4. Follow the on-screen instructions - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 142
. Windows provides the following options: ● Backing up individual files and folders ● Backing up all files and folders ● Scheduling automatic backups ● Creating recovery points ● Recovering information NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 143
. 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. Backup and recovery in Windows XP 133 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 144
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 134 Chapter 8 Connector pin assignments - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 145
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 External monitor 135 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 146
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 147
RJ-11 (modem) Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused RJ-11 (modem) 137 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 148
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 138 Chapter 8 Connector pin assignments - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 149
Power cord set requirements The wide range input feature of the computer permits it to operate from 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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 150
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 151
Industries Alliance (EIA) Web site at http://www.eiae.org. This section provides disassembly instructions for the display assembly. instructions. Specific details, such as screw sizes, quantities, and locations, and component shapes and sizes, can vary from one computer model to another. Battery - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 152
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 153
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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 154
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. 144 Chapter 10 Recycling - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 155
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 - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 156
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 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 157
124 Windows Vista 128 Windows XP 132 Backup and Restore 124, 125, 128, 129 base enclosure spare part number 26 battery removal 49 spare part number 26, 49 battery bay 16 battery release latches, identifying 16 battery, identifying 20 bays, battery 16 BIOS administrator password 106 Bluetooth module - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 158
32 spare part number 32 legacy support, USB 103, 107, 111, 115 lights caps lock 10 optical drive 14 power 10 webcam 17 wireless 10 M main battery cable removal 96 mass storage devices, spare part numbers 33 memory module product description 2 removal 55 spare part numbers 26, 55 microphone (audio - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 159
3 keyboard 5 memory module 2 modem module 4 operating system 5 optical drives 3 panels 2 pointing devices 5 ports 5 power requirements 5 processors 1 product name 1 security 5 serviceability 8 wireless 4 product name 1 R recovery partition 127, 130 release latches, battery 16 removal/replacement - Compaq 321 | Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 160
module spare part number 29 webcam, identifying 17 Windows 7 operating system DVD 127 Windows Backup utility 132, 133 Windows recovery 126, 129, 133 Windows Vista operating system DVD 131 wireless antenna, disconnecting 58 wireless light, identifying 10 wireless, product description 4 WLAN antennas
Compaq 320 Notebook PC
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Maintenance and Service Guide