HP ProBook 4420s Support Question

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Question posted by HFTreeMan on February 27th, 2012

How Can I Turn Off My Red Light On The Mousepad

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Related HP ProBook 4420s Manual Pages

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

...; and performing computer disassembly procedures. It provides comprehensive information on identifying computer features, components, and spare parts; 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.

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 5

Table of contents 1 Product description ...1 2 External component identification ...9 Identifying hardware ...9 Top components ...10 TouchPad ...10 Lights ...11 Buttons, speakers, switches, and fingerprint reader (select models only 12 Keys ...13 Front components ...14 Right-side components ...15 Left-side components ...16 Bottom ...

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

... 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 the People's Republic of China. HP ProBook 4420s Notebook PC √ √ HP ProBook 4421s Notebook PC √ Intel® Arrandale™...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 12

Category Ethernet Wireless External media cards Ports Description HP ProBook 4320s HP ProBook4 320s / 4321s HP ProBook 4420s HP ProBook 4421s UMA Discrete UMA Discrete Supports no modem option √ √ √...RJ-11 (modem) √ √ √ √ RJ-45 (Ethernet, includes link and activity lights) √ √ √ √ 4 Chapter 1 Product description

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 √ &#...√ DRDVD Windows XP Professional √ √ √ √ DRDVD Windows Vista √ √ √ √ Red Flag Linux (in the People's Republic of China √ √ √ √ only) SUSE Linux √ √ &#...

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

... active, the light is off. (2) TouchPad zone* Moves the 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 and off, quickly double-tap the TouchPad off indicator To turn the TouchPad...

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

...; device, is being opened or closed. Blinking: QuickLook is on. ● Amber: All wireless devices are off. Top components 11 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. ● Off: The TouchPad is on.

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 20

... computer may look slightly different from the illustration in Hibernation, press the button briefly to exit Hibernation. Turns off the display if the display is closed while the power is on. ● When the computer...are ineffective, press and hold the power button for at least 5 seconds to turn off , press the button to turn on the computer. ● When the computer is on, press the button to...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 22

... computer speakers are disabled. Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. 14 Chapter 2 External component identification Front components Component (1) Drive light (2) Media Card Reader (3) Audio-out (headphone) jack (4) Audio-in (microphone) jack Description ● Blinking white: The hard drive or optical drive is connected to...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 23

Right-side components 15 Right-side components Component (1) USB ports (2) (2) RJ-11 (modem) jack (select models only) (3) Optical drive light (select models only) (4) Optical drive (select models only) Description Connect optional USB devices. Blinking: The optical drive is being accessed. Reads optical discs and, on select models, also writes to optical discs. Connects a modem cable.

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 26

... webcam is on. Records video and captures still photographs. 18 Chapter 2 External component identification Component (1) Internal display switch (2) Internal microphone (3) Webcam light (select models only) (4) Webcam (select models only) Description Turns off the display if the display is closed while the power is in this section. Display NOTE: Your computer may look...

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

... board) ● For with 33.8-cm (13.3-in) displays ● For with 33.8-cm (13.3-in) displays, red ● For with 35.6-cm (14.0-in) 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...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 33

... ● For use with fingerprint reader and 33.8-cm (13.3-in) displays, red ● For use with 33.8-cm (13.3-in) displays, red ● For use with fingerprint reader and 35.6-cm (14.0-in) displays &#...; For use with fingerprint reader and 35.6-cm (14.0-in) displays, red ● For use with 35.6-cm (14.0-in) displays, red Top heat shield/bracket (included with top cover) Fan Spare part number ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 47

... with Touchpad and fingerprint reader for use with 35.6-cm (14.0-in) displays Palm rest with Touchpad for use with 33.8-cm (13.3-in) displays, red Palm rest with Touchpad for use with 35.6-cm (14.0-in) displays Display assembly, 33.8-cm (13.3-in) HD (1366x768 resolution) Display assembly, 33.8-cm...

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

... rest with Touchpad for use with 33.8-cm (13.3-in) displays, red Palm rest with Touchpad for use with 35.6-cm (14.0-in) displays, red Switch cover, 33.8-cm (13.3-in), red Switch cover, 35.6-cm (14.0-in), red System board, for use with 35.6-cm (14.0-in) models with discrete graphics subsystem in...

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

... suitable form of information, observe these cables tear easily. While handling a drive, avoid touching the connector. Handle drives on , and then shut it in Hibernation, turn the computer on surfaces covered with extreme care; Be sure that cables are routed in such a way that cables are discharged of shock-proof foam...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 59

...● For with 33.8-cm (13.3-in) displays ● For with 33.8-cm (13.3-in) displays, red ● For with 35.6-cm (14.0-in) displays ● For with the rear toward you are unsure...whether the computer is off or in Hibernation, turn the computer on page 49). Remove the switch cover: 1. Remove the four PM2.5×3.0 screws in ) displays, red Spare part number 599567-001 607652-001 599568-...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 70

... through Help and Support. If you are unsure whether the computer is off or in Hibernation, turn the computer on the WWAN module. The blue WWAN antenna cable is connected to the WLAN module.... 3. If you . 2. Remove the switch cover (see Battery on page 51) 6. NOTE: The red WWAN antenna cable is connected to the computer. (The module tilts up with a wireless module authorized for ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 72

... from the computer. 4. Position the computer right-side up with 35.6-cm (14.0-in Hibernation, turn the computer on, and then shut it down the computer. Palm rest Description Palm rest (includes ... ● For use with fingerprint reader and 33.8-cm (13.3-in) displays, red ● For use with 33.8-cm (13.3-in) displays, red ● For use with fingerprint reader and 35.6-cm (14.0-in) displays ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 90

...is off or in ) displays with webcam and without WWAN, red ● For use with 33.8-cm (14.0-in) displays without WWAN, red Spare part number 605558-001 605557-001 599535-001 599526-001 ...(13.3-in) displays without WWAN, red ● For use with 33.8-cm (13.3-in) displays with webcam and without WWAN, red ● For use with 35.6-cm (14.0-in Hibernation, turn the computer on page 69) Remove...