HP ProBook 4420s Support Question

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Question posted by freddca on June 8th, 2014

How Do You Remove The Switch Cover On Hp 4420s Laptop

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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. troubleshooting computer problems; 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. It provides comprehensive information on identifying computer ...

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

... 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 4321s Notebook PC √ NOTE: For use in the People's Republic...

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

If you . 2. Component replacement procedures 51 Remove the switch cover: 1. Shut down through the operating system. 2. ...001 607653-001 Before removing the switch cover, follow these steps: 1. Remove the battery (see Battery on , and then shut it down the computer. Remove the four PM2.5×3.0 screws in the battery bay. 3. Switch cover Description Switch cover ● For ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 60

Reverse this procedure to install the switch cover and keyboard. 52 Chapter 4 Removal and replacement procedures 4. Slide the switch cover back (1), and then remove it from the computer (2).

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 61

Disconnect all external devices connected to the computer. Remove the keyboard: 1. Component replacement procedures 53 Remove the switch cover (see the parts list in Computer major components on page 22 Before removing the keyboard, follow these steps: 1. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 63

...Remove the switch cover (see Switch cover on , and then shut it rests upside down the computer. Remove the keyboard (see Battery on the right side of the module opposite the slot rises away from the computer. 4. Remove the memory module: 1. Spread the retaining tabs (1) on page 53). NOTE: You can release the keyboard without removing...on page 49). 5. Remove the battery (see ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 65

... optical drive: 1. Insert a flat-bladed screwdriver or similar tool into the access point on page 51). 6. Remove the switch cover (see Keyboard on page 53) NOTE: You can release the keyboard without removing the keyboard cable from the computer. 4. Component replacement procedures 57 Optical drive NOTE: All optical drive spare part kits include an...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 67

... procedure to the base enclosure. 3. If you are unsure whether the computer is off or in Hibernation, turn the computer on page 51) Remove the power button board: 1. Remove the battery (see Switch cover on page 51) Before removing the power button board, follow these steps: 1. Switch cover (see Switch cover on , and then shut it down the computer.

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 68

... computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer (3). 60 Chapter 4 Removal and replacement procedures Remove the battery (see Switch cover on page 51). NOTE: The two speakers are unsure whether the computer is off or in ) displays Spare part number 599566-001...

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

... computer functionality, and then contact technical support through the operating system. 2. Remove the two Phillips PM2.5×3.0 screws (2) that regulates wireless devices in your country or region. Remove the battery (see Switch cover on page 51) 6. Shut down through Help and Support. Remove the switch cover (see Battery on page 49). 5. The blue WWAN antenna cable is...

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

...rest to the computer. 3. Disconnect all external devices connected to the computer. 64 Chapter 4 Removal and replacement procedures Palm rest Description Palm rest (includes TouchPad) ● For use with ...-001 Before removing the palm rest, follow these steps: 1. Shut down through the operating system. 2. Remove the switch cover (see Switch cover on page 53) Remove the palm rest: 1.

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 74

... or in Hibernation, turn the computer on the hard drive and slide the hard drive (3) to the left to disconnect it down the computer. Remove the battery (see Switch cover on page 49). 5. Hard drive NOTE: The hard drive spare part kit includes a hard drive bracket. Shut down through the operating system. 2. Disconnect...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 76

... external devices connected to install the RTC battery. 68 Chapter 4 Removal and replacement procedures Remove the following components: a. Palm rest (see Battery on , and...Before removing the RTC battery, follow these steps: 1. If you are unsure whether the computer is off or in Hibernation, turn the computer on page 49) b. Keyboard (see Switch cover on page 53) d. Switch cover ...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 78

... module only with the front toward you replace the module and then receive a warning message, remove the module to the WLAN module "Main" terminal. Remove the battery (see Switch cover on page 51) b. Keyboard (see Palm rest on page 64) Remove the WLAN module: 1. Disconnect the WLAN antenna cables (1) from the computer. 4. If you are...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 80

... number 537921-001 Before removing the Bluetooth module, follow these steps: 1. Remove the following components: a. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Palm rest (see Switch cover on page 64) Remove the Bluetooth module: 1. Switch cover (see Palm rest...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 82

Palm rest (see Switch cover on page 64) Remove the heat sink: 1. Switch cover (see Palm rest on page 51) b. Position the computer right-side up with Unified Memory Architecture (UMA) graphics subsystems Spare part number 599544-001 599653-001 599546-001 Before removing the heat sink, follow these steps: 1. Shut down through the operating system. 2. Keyboard...

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

... on page 51) b. Speakers (see Switch cover on page 60) e. Optical drive (see Top cover on page 57) d. Processor NOTE: The processor spare part kit includes replacement thermal material. If you are unsure whether the computer is off or in Hibernation, turn counterclockwise until you . 2. Remove the following components: a. Use a flat-bladed screwdriver to...

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 88

... computer is included in the Cable kit on page 32, part number 599525-001. Speakers (see Keyboard on page 49). 5. Remove the power connector cable Reverse this procedure to the computer. 3. Switch cover (see Heat sink and fan on page 74) d. Power connector cable NOTE: The power connector cable is off or in...

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

Switch cover (see Switch cover on page 62) f. WWAN cables (see Speakers on page 64) e. Shut down through the operating system. 2. Speakers (see WWAN module on page 51) b. Palm rest (see Keyboard on page 69) Remove the display assembly: 82 Chapter 4 Removal and replacement procedures Remove the following components: a. Disconnect all external devices connected to the computer. 3....

HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 161

... Automatic DriveLock 108 change password 108 Disk Sanitizer 108 DriveLock 108 HP Sparekey 108 HP Sparekey enrollment 108 password policy 108 set up BIOS administrator password ... resources 124 start-up test 109 static-shielding materials 47 stringent security 114 switch cover removal 51 spare part number 23, 51 system board removal 93 spare part numbers 28, 93 System Configuration menu 102, 110, 116...