HP ProBook 4420s Support Question

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Question posted by kaludumi on September 21st, 2011

How To Lock Keyboard Touch Pad Mouse??

How to lock keyboard touch pad mouse??

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Answer #1: Posted by qalatkustian on October 19th, 2011 10:01 AM

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qalatkustian

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Check your touch pad. There is small dot(.) on the top left of the pad. if led on this pad it on it mean pad is locked.Press it twice to unlock and similarly to lock it press small dot twice in quick sensation it will be lock again.

Related HP ProBook 4420s Manual Pages

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 1

HP ProBook 4320s Notebook PC HP ProBook 4321s Notebook PC HP ProBook 4420s Notebook PC HP ProBook 4421s Notebook PC Maintenance and Service Guide SUMMARY This guide is a troubleshooting reference used for maintaining and servicing the computer. and performing computer disassembly procedures. It provides comprehensive ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 6

Workstation guidelines 46 Equipment guidelines 47 Component replacement procedures 48 Serial number label ...48 Computer feet ...48 Battery ...49 SIM ...50 Switch cover ...51 Keyboard ...53 Memory module ...55 Optical drive ...57 Power button board ...59 Speakers ...60 WWAN module ...62 Palm rest ...64 Hard drive ...66 RTC battery ...68 ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 9

...● 33.8-cm (13.3-in the People's Republic of China. 1 Product description Category Product Name Processors Chipsets Graphics Panels Description HP ProBook 4320s HP ProBook4 320s / 4321s HP ProBook 4420s HP ProBook 4421s UMA Discrete UMA Discrete HP ProBook 4320s Notebook PC √ √ NOTE: Discrete not for use in ) HD (1366×768 resolution) √ √ 1

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 13

... 320s / 4321s HP ProBook 4420s HP ProBook 4421s UMA Discrete UMA... √ √ Keyboard and 33.8-cm (13.3-in) keyboard with TouchPad pointing devices √ √ 35.6-cm (14.0-in) keyboard with TouchPad √... Li-ion battery √ √ √ √ Security Supports Kensington security lock √ √ √ √ Intel AT support √ √ ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 16

... 4320s HP ProBook4 320s / 4321s HP ProBook 4420s HP ProBook 4421s UMA Discrete UMA Discrete Microsoft Office Ready DVD √ √...√ √ √ √ √ √ √ √ √ √ √ √ Bluetooth module Keyboard Speaker assembly √ √ √ √ √ √ √ √ √ √ √ √...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 18

... pointer and selects or activates items on the screen. (3) Left TouchPad button* Functions like the left button on an external mouse. (4) Right TouchPad button* Functions like the right button on an external mouse. *This table describes factory settings. To view or change pointing device preferences, select Start > Control Panel > Printers and Other...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 19

... (WLAN) device and/or a Bluetooth® device, is on. ● Amber: All wireless devices are off . ● Off: The TouchPad is on . On: Caps lock is on . Lights Component (1) TouchPad off indicator (2) Caps lock light (3) HP QuickLook light (4) HP QuickWeb light (5) Power light (6) Wireless light Description ● Amber: The TouchPad is off .

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 31

...) displays ● For with 35.6-cm (14.0-in) displays, red 599567-001 607652-001 599568-001 607653-001 Power button board (included with switch cover) Keyboard In computer models with 33.8-cm (13.3-in) displays: ● For use in Belgium ● For use in Brazil ● For use in Bulgaria ●...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 48

....8-cm (13.3-in), for use in Canada (French) Keyboard, 33.8-cm (13.3-in), for use in Portugal Keyboard, 33.8-cm (13.3-in), for use in Turkey Keyboard, 33.8-cm (13.3-in), for use in Latin America Keyboard, 33.8-cm (13.3-in), for use in Saudi Arabia Keyboard, 33.8-cm (13.3-in), for use in Brazil...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 49

...-BB1 599573-BG1 599573-DD1 599573-DJ1 Description Keyboard, 33.8-cm (13.3-in), for use in Switzerland Keyboard, 33.8-cm (13.3-in), for use in Iceland Keyboard, 33.8-cm (13.3-in), for use in Greece Keyboard, 33.8-cm (13.3-in), for use in French Arabic region Keyboard, 35.6-cm (14.0-in), for use in the...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 50

... 607652-001 607653-001 608266-001 608267-001 608736-001 608737-001 608738-001 608739-001 608740-001 608741-001 608742-001 608743-001 Description Keyboard, 35.6-cm (14.0-in), for use in French Arabic region Processor heat sink for use with discrete graphics subsystem Processor heat sink for use with...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 52

... they cannot be caught or snagged by the connector whenever possible. Apply only the tension required to temperature extremes or liquids. While handling a drive, avoid touching the connector. In all cases, avoid bending, twisting, or tearing cables. Before handling a drive, be handled with extreme care to products that you are placed...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 53

...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 Preliminary replacement requirements 45 Avoid touching pins, leads, and circuitry. If you are sensitive to alter device parameters or melt silicon junctions. Before touching an electronic component, discharge static electricity by different activities. Grounding guidelines Electrostatic discharge damage Electronic...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 54

... workstations. ● Avoid contact with conductive or approved containers or packaging. ● Keep ESD-sensitive parts in their containers. ● Always be properly grounded when touching a component or assembly. ● Store reusable ESD-sensitive parts from assemblies in protective packaging or nonconductive foam. ● Use transporters and conveyors made only of...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 86

... the computer is off or in Hibernation, turn counterclockwise until you . 2. Keyboard (see Optical drive on page 53) c. Optical drive (see Keyboard on page 57) d. Use a flat-bladed screwdriver to the computer. 3. Disconnect all external devices connected to turn the processor locking screw (1) one-half turn the computer on page 64) f. Remove the...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 106

...a menu item, use the tab key and the keyboard arrow keys and then press enter, or use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard to the system, such as a new USB drive... in this guide may not be assigned the next available drive letter. NOTE: An external keyboard connected by your operating system opens and while the "Press the ESC key for Startup Menu...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 112

NOTE: Some of the screen. 2. NOTE: An external keyboard or mouse connected to Network ◦ Follow Boot Order ● Enable/disable the integrated camera (webcam). ● Enable/disable Power Monitor Circuit. ● Enable/disable the audio ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 113

...right corner of the screen, or use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard to navigate and make selections in Computer Setup. 2. To exit Computer Setup menus, choose one of ...of the screen. ● To select a menu or a menu item, use the tab key and the keyboard arrow keys and then press enter, or use a pointing device to click the item. ● To scroll...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 124

... connected by your computer. When enabled, USB legacy support allows the following: ◦ Use of a USB keyboard in 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 hard drive ◦ 5th boot device: USB hard disk ◦ 6th boot device: Network controller &#...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 159

...audio-in (microphone) 14 audio-out (headphone) 14 RJ-11 (modem) 15 RJ-45 (network) 16 K keyboard product description 5 removal 53 spare part number 23, 53 keys embedded keypad 13 esc 13 fn 13 function 13 ... release 17 legacy support, USB 98, 103, 104, 110, 112 , 116 lights AC adapter 16 caps lock 11 drive 14 optical drive 15 power 11 QuickLook 11 QuickWeb 11 TouchPad 10, 11 webcam 18 M mass storage...