Dell Latitude 5420/E5420/E5420m Owner's Manual Regulatory Model: P15F Regulatory Type: P15F001
Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Information in this publication is subject to change without notice. © 2012 Dell Inc. All rights reserved.
Contents Notes, Cautions, and Warnings...................................................................................................2 1 Working on Your Computer.......................................................................................................7 Before Working Inside Your Computer.....................................................................................................................7 Recommended Tools.......................................................................
Installing the Keyboard...........................................................................................................................................30 10 Optical Drive.............................................................................................................................31 Removing the Optical Drive....................................................................................................................................31 Installing the Optical Drive.............
Removing the ExpressCard/Smart Card/PCMCIA Module ....................................................................................61 Installing the ExpressCard/Smart Card/PCMCIA Module......................................................................................64 21 Bluetooth Card.........................................................................................................................67 Removing the Bluetooth Card..................................................................
31 Thermal Fan............................................................................................................................123 Removing the Thermal Fan...................................................................................................................................123 Installing the Thermal Fan....................................................................................................................................126 32 Speaker......................................
Working on Your Computer 1 Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist: • You have performed the steps in Working on Your Computer. • You have read the safety information that shipped with your computer.
6. Close the display and turn the computer upside-down on a flat work surface. NOTE: To avoid damaging the system board, you must remove the main battery before you service the computer. 7. Remove the main battery. 8. Turn the computer top-side up. 9. Open the display. 10. Press the power button to ground the system board. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the display.
After Working Inside Your Computer After you complete any replacement procedure, ensure you connect any external devices, cards, and cables before turning on your computer. CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers. 1. Connect any external devices, such as a port replicator, battery slice, or media base, and replace any cards, such as an ExpressCard. 2.
Battery 2 Removing the Battery 1. Follow the procedures in Before Working On Your Computer. 2. Slide the release latches to unlock the battery. 3. Remove the battery from the computer. Related Links Installing the Battery Installing the Battery 1. Slide the battery back into the computer. 2. Follow the procedures in After Working Inside Your Computer. The release latches automatically click into the lock position.
PC Card 3 Removing the PC Card 1. Follow the procedures in Before Working On Your Computer. 2. Press in on the PC latch to release the latch. 3. Press in on the PC latch to release the PC card. 4. Slide the PC card out of the computer.
Installing the PC Card 1. Push the PC latch to lock it. 2. Push the PC card to its slot until it clicks. 3. Follow the procedures in After Working Inside Your Computer.
Secure Digital (SD) Card 4 Removing The Secure Digital (SD) Card 1. Follow the procedures in Before Working On Your Computer. 2. Push in on the SD card. 3. Slide the SD card out of the computer. Related Links Installing The Secure Digital (SD) Card Installing The Secure Digital (SD) Card 1. Slide the SD card into its slot until it clicks into place. 2. Follow the procedures in After Working Inside Your Computer.
Subscriber Identity Module (SIM) Card 5 Removing the Subscriber Identity Module (SIM) Card 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Press and release the SIM card located on the battery wall. 4. Slide the SIM card from the computer. Related Links Installing the Subscriber Identity Module (SIM) Card Installing the Subscriber Identity Module (SIM) Card 1. Insert the SIM card into the slot. 2. Replace the battery. 3.
ExpressCard 6 Removing the ExpressCard 1. Follow the procedures in Before Working On Your Computer. 2. Push in on the ExpressCard. 3. Slide the ExpressCard out of the computer. Related Links Installing the ExpressCard Installing the ExpressCard 1. Insert the ExpressCard into the slot until it clicks into place. 2. Follow the procedures in After Working Inside Your Computer.
Back Panel 7 Removing the Back Panel 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the screws that secure the back panel. 4. Slide and remove the back panel toward the front of the computer . Related Links Installing the Back Panel Installing the Back Panel 1. Slide the back panel towards the back of the computer. 2. Tighten the screws to secure the back panel. 3. Replace the battery. 4.
Keyboard Trim 8 Removing the Keyboard Trim 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Pry up the keyboard trim from the bottom edge. 4. Pry up the keyboard trim from the top edge. 5. Remove the keyboard trim from the computer.
Installing the Keyboard Trim Installing the Keyboard Trim 1. Align the keyboard trim with the tabs on the top of the palm rest. 2. Press along the top edge to latch on the tabs. 3. Work your way around the sides and bottom edge of the keyboard trim. 4. Press the keyboard trim down along all the edges until it clicks into place. 5. Replace the battery. 6. Follow the procedures in After Working Inside Your Computer.
Keyboard 9 Removing the Keyboard 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the keyboard trim. 4. Remove the screws that secure the keyboard to the front of the computer. 5. Flip the computer and remove the screws that secure the keyboard to the computer.
6. 26 Flip the keyboard.
7. Disconnect the keyboard data cable from the computer.
8. 28 Remove the keyboard from the computer.
9. Disconnect and remove the cable from the keyboard.
Related Links Installing the Keyboard Installing the Keyboard 1. Connect the keyboard-data cable to the system board. 2. Connect the keyboard data cable to the back of the keyboard. 3. Replace the tape to secure the keyboard data cable to the back of the keyboard. 4. Replace the keyboard on the palm rest to align with the screw holes. 5. Tighten the keyboard screws. 6. Flip the keyboard and tighten the screws. 7. Replace the keyboard trim. 8. Replace the battery. 9.
Optical Drive 10 Removing the Optical Drive 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the screw that secures the optical drive to the computer. 5. Push the screw tab away from the computer to release the optical drive from the drive bay. 6. Remove the optical drive from the computer.
Installing the Optical Drive Installing the Optical Drive 1. Slide the optical drive into the drive bay on the right side of the computer. 2. Tighten the screw on the back of the computer to secure the optical drive. 3. Replace the back panel. 4. Replace the battery. 5. Follow the procedures in After Working Inside Your Computer.
Hard Drive 11 Removing the Hard Drive 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the screws that secure the hard-drive bracket to the computer. 5. Use the tab to pull the hard-drive bracket upward and remove it from the computer. 6. Remove the hard-drive bracket screws.
7. Disconnect the bracket from the hard drive. 8. Disconnect the hard-drive connector from the hard drive. Related Links Installing the Hard Drive Assembly Installing the Hard Drive 1. Reconnect the hard-drive connector to the hard drive. 2. Attach the hard-drive bracket to the hard drive. 3. Tighten the hard-drive bracket screws to ensure that the bracket is correctly aligned and holding the hard drive. 4. Slide the hard drive into the bay towards the connector on the system board. 5.
Wireless Local Area Network (WLAN) Card 12 Removing the Wireless Local Area Network (WLAN) Card 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Disconnect the antenna cables from the WLAN card. 5. Remove the screw that secures the WLAN card to system board. 6. Remove the WLAN card.
Related Links Installing the Wireless Local Area Network (WLAN) Card Installing The Wireless Local Area Network (WLAN) Card 1. Slide the WLAN card into its slot. 2. Tighten the screw to secure the WLAN card to the computer. 3. Connect the antenna cables according to the color code on the WLAN card. 4. Replace the back panel. 5. Replace the battery. 6. Follow the procedures in After Working Inside Your Computer.
Wireless Wide Area Network (WWAN) Card 13 Removing the Wireless Wide Area Network (WWAN) Card 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Disconnect the antenna cables from the WWAN card. 5. Remove the screw that secures the WWAN card to the system board. 6. Remove the WWAN card.
Related Links Installing the Wireless Wide Area Network (WWAN) card Installing The Wireless Wide Area Network (WWAN) Card 1. Slide the WWAN card into its slot. 2. Tighten the screw to secure the WWAN card to the computer. 3. Connect the antenna cables according to the color code on the WWAN card. 4. Replace the back panel. 5. Replace the battery. 6. Follow the procedures in After Working Inside Your Computer.
Memory 14 Removing the Memory Module 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Pry the retention clips away from the memory module. 5. Remove the memory module from the computer. Related Links Installing The Memory Module Installing the Memory Module 1. Insert the memory module into the slot in the computer. 2. Press down the memory module until the retention clips secure the memory module. 3. Replace the back panel.
Related Links Removing the Memory Module 40
CPU Door 15 Removing the CPU Door 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the screws that secure the CPU door to the computer. 5. Remove the CPU door.
Related Links Installing the CPU Door Installing the CPU Door 1. Slide the CPU door downwards and towards the back of the computer. 2. Tighten the screws to secure the CPU door. 3. Replace the back panel. 4. Replace the battery. 5. Follow the procedures in After Working Inside Your Computer.
Heat Sink 16 Removing The Heat Sink 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the CPU door. 5. Loosen the screws on the heat sink. 6. Lift the heat sink and remove it from the computer. Related Links Installing The Heat Sink Installing the Heat Sink 1. Tighten the screws as per the numerical sequence on the heat sink module. Ensure that the heat sink is correctly aligned and seated over the processor. 2.
5. Follow the procedures in After Working Inside Your Computer.
Processor 17 Removing the Processor 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the CPU door. 5. Remove the heat sink. 6. Rotate the processor-cam screw in counter-clockwise direction. 7. Remove the processor. Related Links Installing the Processor Installing the Processor 1. Insert the processor into the processor socket. 2. Replace the heat sink. 3. Replace the CPU door. 4. Replace the back panel.
5. Replace the battery. 6. Follow the procedures in After Working Inside Your Computer.
Palm Rest 18 Removing the Palm Rest 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the CPU door. 8. Remove the screws from the bottom of the computer.
9. 48 Flip the computer and remove the screws from the back of the computer.
10.
11. Lift up the left edge of the palm rest assembly.
12. Release the tabs on the right edge of the palm rest assembly.
13. Remove the palm rest assembly from the computer.
Related Links Installing the Palm Rest Installing the Palm Rest 1. From the left edge of the palm rest, press the palm rest downwards on all the edges on the computer. 2. Press down on all edges to ensure that the tabs are engaged. 3. Connect the following cables to the system board: – power button cable – fingerprint cable – touchpad cable 4. Tighten the screws to secure the palm rest. 5. Flip the computer over and tighten the screws to secure the palm rest. 6. Replace the CPU door. 7.
9. Replace the optical drive. 10. Replace the back panel. 11. Replace the battery. 12. Follow the procedures in After Working Inside Your Computer.
LED Board 19 Removing the LED Board 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the CPU door. 8. Remove the palm rest. 9. Remove the screw that secures the LED board to the computer.
10. Disconnect the LED board cable from the system board connector.
11. Remove the LED board.
Related Links Installing the LED Board Installing the LED Board 1. Insert the LED board on the left bracket. 2. Connect the cable to the system board. 3. Tighten the screw to secure the LED board. 4. Replace the palm rest. 5. Replace the CPU door. 6. Replace the keyboard. 7. Replace the keyboard trim. 8. Replace the optical drive. 9. Replace the back panel. 10. Replace the battery. 11. Follow the procedures in After Working Inside Your Computer.
Related Links Removing the LED Board 59
ExpressCard/Smart Card/PCMCIA Module 20 Removing the ExpressCard/Smart Card/PCMCIA Module 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard 6. Remove the optical drive. 7. Remove the CPU door. 8. Remove the palm rest. 9. Remove the screws that secure the ExpressCard/Smart Card/PCMCIA module to the computer.
10. Disconnect the cage from the system board connector.
11. Remove the ExpressCard/Smart Card/PCMCIA module.
Related Links Installing the ExpressCard/Smart Card/PCMCIA Module Installing the ExpressCard/Smart Card/PCMCIA Module 1. Attach the connector on the back of the ExpressCard/Smart Card/PCMCIA module, to the connector on the system board. 2. Tighten the screws to secure the ExpressCard/Smart Card/PCMCIA module. 3. Replace the palm rest. 4. Replace the CPU door. 5. Replace the keyboard trim. 6. Replace the keyboard. 7. Replace the optical drive. 8. Replace the back panel. 9.
Related Links Removing the ExpressCard/Smart Card/PCMCIA Module 65
Bluetooth Card 21 Removing the Bluetooth Card 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the CPU door. 8. Remove the palm rest. 9. Disconnect the Bluetooth cable from the system board.
10. Remove the screw that secures the Bluetooth card.
11. Remove the Bluetooth card.
12. Disconnect the Bluetooth cable from the Bluetooth card. Related Links Installing the Bluetooth Card.
Installing the Bluetooth Card 1. Connect the Bluetooth cable to the Bluetooth module. 2. Place the Bluetooth module in the computer. 3. Connect the Bluetooth cable to the system board. 4. Replace the palm rest. 5. Replace the CPU door. 6. Replace the keyboard. 7. Replace the keyboard trim. 8. Replace the optical drive. 9. Replace the back panel. 10. Replace the battery. 11. Follow the procedures in After Working Inside Your Computer.
Display Assembly 22 Removing the Display Assembly 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the hard drive. 8. Remove the CPU door. 9. Remove the palm rest. 10. Disconnect the antenna cables connected to the WLAN/WWAN cards.
11. Remove the antenna cables from the routing channels.
12. Disconnect the low-voltage differential (LVDS) and the camera cables.
13. Remove the screws that secure the display assembly to the computer.
14. Remove the display assembly.
Related Links Installing the Display Assembly Installing the Display Assembly 1. Attach the display assembly to the base of the computer. 2. Tighten the screws to secure the display assembly. 3. Connect the low-voltage differential (LVDS) cable to the system board. 4. Connect the camera cable to the system board connector. 5. Push the antenna cables through the opening of the bottom of the computer. 6. Secure the antenna cables to the routing channels. 7.
12. Replace the hard drive. 13. Replace the optical drive. 14. Replace the back panel. 15. Replace the battery. 16. Follow the procedures in After Working Inside Your Computer.
Brackets 23 Removing the Support Brackets 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the CPU door. 8. Remove the palm rest. 9. Remove the display assembly. 10. Remove the screws that secure the right support bracket.
11. Remove the right support bracket.
12. Remove the screws that secure the left support bracket.
13. Remove the left support bracket.
Related Links Installing the Support Brackets Installing the Support Brackets 1. Place the right support bracket in the computer. 2. Tighten the screws to secure the right support bracket. 3. Place the left support bracket in the computer. 4. Tighten the screws to secure the left support bracket. 5. Replace the display assembly. 6. Replace the palm rest. 7. Replace the LED board. 8. Replace the CPU door. 9. Replace the keyboard. 10. Replace the keyboard trim. 11.
12. Replace the back panel. 13. Replace the battery. 14. Follow the procedures in After Working Inside Your Computer.
Modem Card 24 Removing the Modem Card 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the hard drive 8. Remove the CPU door. 9. Remove the palm rest. 10. Remove the display assembly. 11. Remove the support brackets. 12. Remove the screw that secures the modem card.
13. Lift the modem card, to disengage from the connector on the back of the card.
14. Disconnect the modem cable from the modem.
15. Remove the modem card.
Related Links Installing the Modem Card Installing the Modem Card 1. Connect the modem cable. 2. Attach the connector on the back of the modem card to the connector on the I/O panel. 3. Replace the support brackets. 4. Replace the display assembly. 5. Replace the palm rest. 6. Replace the CPU door. 7. Replace the keyboard. 8. Replace the keyboard trim 9. Replace the optical drive. 10. Replace the back panel. 11. Replace the battery.
12. Follow the procedures in After Working Inside Your Computer.
Audio Board 25 Removing the Audio Board 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the CPU door. 8. Remove the palm rest. 9. Remove the Bluetooth card. 10. Disconnect the audio board cables from the system board.
11. Remove the screw that secures the audio board to the computer.
12. Remove the audio board.
Related Links Installing the Audio Board Installing the Audio Board 1. Place the audio board in the computer. 2. Tighten the screw to secure the audio board. 3. Connect the audio cables to the system board. 4. Replace the Bluetooth card. 5. Replace the palm rest. 6. Replace the CPU door. 7. Replace the keyboard. 8. Replace the keyboard trim. 9. Replace the optical drive. 10. Replace the back panel. 11. Replace the battery.
12. Follow the procedures in After Working Inside Your Computer.
System Board 26 Removing the System Board 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the subscriber identity module (SIM) card. 4. Remove the secure digital (SD) card. 5. Remove the back panel. 6. Remove the memory. 7. Remove the keyboard trim. 8. Remove the keyboard. 9. Remove the optical drive. 10. Remove the hard drive. 11. Remove the wireless local area network (WLAN). 12. Remove the wireless wide area network (WWAN). 13.
22.
23. Remove the screws that secure the system board.
24. Lift the edge of the system board to disconnect it from the input/output (I/O) panel.
25. Release the system board from the port connectors.
26. Remove the system board.
Related Links Installing the System Board Installing the System Board 1. Align the system board to the port connectors and place the system board in the computer. 2. Engage the connector on the back of the system board to the input/output (I/O panel). 3. Tighten the screws to secure the system board. 4. Connect the following cables to the system board: – thermal fan cable – speaker cable – audio board cable – bluetooth cable 5. Replace the support brackets. 6. Replace the LED board. 7.
8. Replace the ExpressCard/Smart Card/PCMCIA module. 9. Replace the palm rest. 10. Replace the processor. 11. Replace the heat sink. 12. Replace the CPU door.. 13. Replace the wireless wide area network (WWAN). 14. Replace the wireless local area network (WLAN). 15. Replace the hard drive. 16. Replace the optical drive. 17. Replace the keyboard. 18. Replace the keyboard trim 19. Replace the memory. 20. Replace the back panel. 21. Replace the secure digital (SD) card. 22.
Coin-Cell Battery 27 Removing the Coin-Cell Battery 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the subscriber identity module (SIM) card. 4. Remove the secure digital (SD) card. 5. Remove the back panel. 6. Remove the memory. 7. Remove the keyboard trim. 8. Remove the keyboard. 9. Remove the optical drive. 10. Remove the hard drive. 11. Remove the wireless wide area network (WWAN). 12. Remove the wireless local area network (WLAN). 13.
23. Pry and remove the coin-cell battery.
Related Links Installing the Coin-Cell Battery Installing the Coin-Cell Battery 1. Connect the coin-cell battery to system board and secure it. 2. Replace the system board. 3. Replace the support brackets. 4. Replace the LED board. 5. Replace the display assembly. 6. Replace the ExpressCard/Smart Card/PCMCIA module. 7. Replace the palm rest. 8. Replace the processor. 9. Replace the heat sink. 10. Replace the CPU door. 11. Replace the wireless local area network (WLAN).
12. Replace the wireless wide area network (WWAN). 13. Replace the hard drive. 14. Replace the optical drive. 15. Replace the keyboard. 16. Replace the keyboard trim. 17. Replace the memory. 18. Replace the back panel. 19. Replace the secure digital (SD) card. 20. Replace the subscriber identity module (SIM) card. 21. Replace the battery. 22. Follow the procedures in After Working Inside Your Computer.
Input/Output Panel 28 Removing The Input/Output (I/O) Panel 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the subscriber identity module (SIM) card. 4. Remove the secure digital (SD) card. 5. Remove the back panel. 6. Remove the memory 7. Remove the keyboard trim. 8. Remove the keyboard. 9. Remove the optical drive. 10. Remove the hard drive. 11. Remove the wireless local area network (WLAN). 12.
23. Remove the I/O panel.
Related Links Installing The Input/Output (I/O) Panel Installing the Input/Output (I/O) Panel 1. Place the I/O panel in the computer. 2. Tighten the screws to secure the I/O panel. 3. Replace the system board. 4. Replace the support brackets. 5. Replace the LED board. 6. Replace the display assembly. 7. Replace the ExpressCard/Smart Card/PCMCIA module 8. Replace the palm rest. 9. Replace the processor. 10. Replace the heat sink. 11. Replace the CPU door.
12. Replace the wireless local area network (WLAN). 13. Replace the wireless wide area network (WWAN). 14. Replace the hard drive. 15. Replace the optical drive. 16. Replace the keyboard. 17. Replace the keyboard trim. 18. Replace the memory. 19. Replace the back panel. 20. Replace the secure digital (SD) card. 21. Replace the subscriber identity module (SIM) card. 22. Replace the battery. 23. Follow the procedures in After Working Inside Your Computer.
Power Connector 29 Removing the Power Connector 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the subscriber identity module (SIM) card. 4. Remove the secure digital (SD) card. 5. Remove the back panel. 6. Remove the memory. 7. Remove the keyboard trim. 8. Remove the keyboard. 9. Remove the optical drive. 10. Remove the hard drive. 11. Remove the wireless local area network (WLAN). 12. Remove the wireless wide area network (WWAN). 13.
23. Remove the power connector.
Related Links Installing the Power Connector Installing the Power Connector 1. Secure the DC-In port to the routing channel on the processor fan. 2. Replace the system board. 3. Replace the support brackets. 4. Replace the LED board. 5. Replace the display assembly. 6. Replace the ExpressCard/Smart Card/PCMCIA module. 7. Replace the palm rest. 8. Replace the processor. 9. Replace the heat sink. 10. Replace the CPU door. 11. Replace the wireless wide area network (WWAN).
12. Replace the wireless local area network (WLAN). 13. Replace the hard drive. 14. Replace the optical drive. 15. Replace the keyboard. 16. Replace the keyboard trim. 17. Replace the memory. 18. Replace the back panel. 19. Replace the secure digital (SD) card. 20. Replace the subscriber identity module (SIM) card. 21. Replace the battery. 22. Follow the procedures in After Working Inside Your Computer.
Modem Connector 30 Removing the Modem Connector 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the subscriber identity module (SIM) card. 4. Remove the secure digital (SD) card. 5. Remove the back panel. 6. Remove the memory. 7. Remove the keyboard trim. 8. Remove the keyboard. 9. Remove the optical drive. 10. Remove the hard drive. 11. Remove the wireless local area network (WLAN). 12. Remove the wireless wide area network (WWAN). 13.
25. Remove the modem connector.
Related Links Installing the Modem Connector Installing the Modem Connector 1. Secure the modem connector into the routing channel on the thermal fan. 2. Replace the system board. 3. Replace the support brackets. 4. Replace the audio board. 5. Replace the bluetooth. 6. Replace the audio board. 7. Replace the display assembly. 8. Replace the ExpressCard/Smart Card/PCMCIA module. 9. Replace the palm rest. 10. Replace the processor. 11. Replace the heat sink.
12. Replace the CPU door. 13. Replace the wireless local area network (WLAN) 14. Replace the wireless wide area network (WWAN) 15. Replace the hard drive. 16. Replace the optical drive. 17. Replace the keyboard. 18. Replace the keyboard trim. 19. Replace the memory. 20. Replace the back panel. 21. Replace the secure digital (SD) card. 22. Replace the subscriber identity module (SIM) card. 23. Replace the battery. 24. Follow the procedures in After Working Inside Your Computer.
Thermal Fan 31 Removing the Thermal Fan 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the subscriber identity module (SIM) card. 4. Remove the secure digital (SD) card. 5. Remove the back panel. 6. Remove the memory. 7. Remove the keyboard trim. 8. Remove the keyboard. 9. Remove the optical drive. 10. Remove the hard drive. 11. Remove the wireless local area network (WLAN). 12. Remove the wireless wide area network (WWAN). 13.
23. Remove the screw that secures the thermal fan.
24. Remove the thermal fan.
Related Links Installing the Thermal Fan Installing the Thermal Fan 1. Connect the processor fan in the computer. 2. Tighten the screws to secure the processor fan. 3. Secure the power connector and the modem connector cables to the routing channels. 4. Replace the system board. 5. Replace the brackets. 6. Replace the LED board. 7. Replace the display assembly. 8. Replace the ExpressCard/Smart Card/PCMCIA module. 9. Replace the palm rest. 10. Replace the processor. 11.
12. Replace the CPU door. 13. Replace the wireless local area network (WLAN). 14. Replace the wireless wide area network (WWAN). 15. Replace the hard drive. 16. Replace the optical drive. 17. Replace the keyboard. 18. Replace the keyboard trim. 19. Replace the memory. 20. Replace the back panel. 21. Replace the secure digital (SD) card. 22. Replace the subscriber identity module (SIM) card. 23. Replace the battery. 24. Follow the procedures in After Working Inside Your Computer.
Speaker 32 Removing the Speakers 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the subscriber identity module (SIM) card. 4. Remove the secure digital (SD) card. 5. Remove the back panel. 6. Remove the memory. 7. Remove the keyboard trim. 8. Remove the keyboard. 9. Remove the optical drive. 10. Remove the hard drive. 11. Remove the wireless local area network (WLAN). 12. Remove the wireless wide area network (WWAN). 13. Remove the CPU door.
26. Remove the speakers. Related Links Installing the Speakers Installing the Speakers 1. Secure the speaker cables to the routing channels. 2. Connect the speakers. 3. Tighten the screws to secure the speakers. 4. Replace the audio board. 5. Replace the Bluetooth. 6. Replace the system board. 7. Replace the support brackets. 8. Replace the LED board.. 9. Replace the display assembly. 10. Replace the ExpressCard/Smart Card/PCMCIA module. 11. Replace the palm rest. 12.
21. Replace the keyboard trim and keyboard. 22. Replace the memory. 23. Replace the back panel. 24. Replace the secure digital (SD) card. 25. Replace the subscriber identity module (SIM) card. 26. Replace the battery. 27. Follow the procedures in After Working Inside Your Computer.
Display Bezel 33 Removing the Display Bezel 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Pry up the bottom edge of the display bezel. 4. Work your way around the sides and the top edge of the display bezel. 5. Remove the display bezel.
Installing the Display Bezel Installing the Display Bezel 1. Place the display bezel on the computer. 2. From the top edge, press downward on the display bezel to engage the tabs om all the edges. 3. Work your way around the side and the bottom edge. 4. Replace the battery. 5. Follow the procedures in After Working Inside Your Computer.
Display Panel 34 Removing the Display Panel 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the display bezel. 4. Remove the screws that secure the display panel. 5. Disconnect the low-voltage differential signaling (LVDS) cable from the back of the display panel. 6. Remove the display panel from the display assembly.
7. Remove the screws that secure the display brackets to the display panel and remove the brackets. Related Links Installing the Display Panel Installing the Display Panel 1. Align the display brackets with the display panel. 2. Tighten the screws to secure the display panel. 3. Connect the low-voltage differential signaling (LVDS) cable to the back of the display panel. 4. Place the display panel in the display cover. 5. Tighten the screws to secure the display panel. 6.
Display Hinges 35 Removing the Display Hinges 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the back panel. 4. Remove the keyboard trim. 5. Remove the keyboard. 6. Remove the optical drive. 7. Remove the CPU door. 8. Remove the palm rest. 9. Remove the display assembly. 10. Remove the display bezel.. 11. Remove the display panel. 12. Remove the screws that secure the display hinges. 13. Remove the display hinges from the display assembly.
15. Remove the hinge caps from the display hinges. Related Links Installing the Display Hinges Installing the Display Hinges 1. Secure the display hinge caps onto the ends of the hinges. 2. Insert the display hinges into the hinge towers. 3. Insert the low-voltage differential signaling (LVDS) cable into the left hinge tower. 4. Replace the left hinge on the display cover. 5. Replace the antenna cables into the right hinge tower. 6. Replace the right hinge on the display cover. 7.
Removing the Display Hinges 139
Camera 36 Removing the Camera Module 1. Follow the procedures in Before Working On Your Computer. 2. Remove the battery. 3. Remove the display bezel. 4. Remove the display panel. 5. Disconnect the camera cable. 6. Loosen the screw that secures the camera module. 7. Lift and remove the camera module.
Related Links Installing the Camera Module Installing the Camera Module 1. Place the camera module on the display cover. 2. Tighten the screw to secure the camera. 3. Connect the camera cable to the camera module. 4. Replace the display panel 5. Replace the display bezel. 6. Replace the battery. 7. Follow the procedures in After Working Inside Your Computer.
37 Specifications Technical Specifications NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information regarding the configuration of your computer, click Start → Help and Support and select the option to view information about your computer.
Audio Type two-channel high definition audio Controller 92HD90B Stereo Conversion 24-bit (analog-to-digital and digital-to-analog) Interface: Internal high definition audio External microphone-in connector, stereo headphones/external speakers connector Speakers 1.5 W stereo Internal speaker amplifier 1.
Display Type White Light Emitting Diode (WLED) display Size Latitude 5420/E5420/E5420m 14.0 inch high definition WLED Latitude 5520/E55420/E5520m 15.6 inch high definition WLED Active area (X/Y) Latitude 5420/E5420/E5420m 309.60 mm/173.90 mm Latitude 5520/E55420/E5520m 344.20 mm/193.50 mm Dimensions: Height Latitude 5420/E5420/E5420m 192.50 mm (7.57 inches) Latitude 5520/E55420/E5520m 210.00 mm (8.27 inches) Width Latitude 5420/E5420/E5420m 324.00 mm (12.
Display Pixel pitch Latitude 5420/E5420/E5420m HD 0.2265 mm x 0.2265 mm HD+ 0.1935 mm x 0.1935 mm Latitude 5520/E55420/E5520m HD 0.2520 mm x 0.2520 mm FHD 0.1935 mm x 0.1935 mm Keyboard Number of keys United States: 86 keys, United Kingdom: 87 keys, Brazil: 87 keys, and Japan: 90 keys Layout QWERTY/AZERTY/Kanji Touchpad Active Area X-axis 80.00 mm Y-axis 40.70 mm Battery Type 4-, 6- or 9-cell "smart" lithium ion Dimensions: Height 4-, 6-, and 9-cell 20.00 mm (0.
Battery 4-cell 14.8 VDC 6- and 9-cell 11.1 VDC Temperature range: Operating 0 °C to 50 °C (32 °F to 122 °F) Non-Operating –40 °C to 85 °C (–40 °F to 185 °F) NOTE: The battery pack is capable of safely withstanding the above storage temperatures with 100% charge. NOTE: The battery pack is also capable of withstanding storage temperatures from –20 °C to +60 °C with no degradation in its performance.
Physical Latitude 5420/E5420/E5420m 350.00 mm (13.78 inches) Latitude 5520/E5520/E5520m 388.00 mm (15.28 inches) Depth Latitude 5420/E5420/E5420m 240.00 mm (9.45 inches) Latitude 5520/E5520/E5520m 251.00 mm (9.88 inches) Weight Latitude 5420/E5420/E5420m 2.27 kg (5.00 lb) Latitude 5520/E5520 2.54 kg (5.60 lb) Latitude E5520m 2.63 kg (5.
38 System Setup Overview System Setup allows you to: • • • change the system configuration information after you add, change, or remove any hardware in your computer. set or change a user-selectable option such as the user password. read the current amount of memory or set the type of hard drive installed. CAUTION: Unless you are an expert computer user, do not change the settings for this program. Certain changes can cause your computer to work incorrectly. Entering System Setup 1.
General • • • • Boot List Option Allows you to change the boot list option. • • Date/Time USB Storage Device CD/DVD/CD-RW Drive Onboard NIC Cardbus NIC Legacy UEFI Allows you to change the date and time. System Configuration Integrated NIC Allows you to configure the integrated network controller. The options are: • • • • Disabled Enabled Enabled w/PXE Enabled w/ImageServer Default Setting: Enabled w/PXE System Management Allows you to control the systems management mechanism.
System Configuration Default Setting: AT Serial Port Allows you to configure the integrated serial port. The options are: • • • • • Disabled COM1 COM2 COM3 COM4 Default Setting: COM1 SATA Operation Allows you to configure the internal SATA hard-drive controller. The options are: • • • Disabled ATA AHCI Default Setting: AHCI NOTE: SATA is configured to support RAID mode. USB Controller Allows you to control the USB controller.
System Configuration • • • • • Disabled Level is 25% Level is 50% Level is 50% Levels is 100% Default Setting: Level is 75% Drives Allows you to configure the SATA drives on board. The options are: • • • • SATA-0 SATA-1 SATA-4 SATA-5 Default Setting: All drives are enabled. Video LCD Brightness Allows you to set the display brightness depending up on the power source (On Battery and On AC). NOTE: The Video setting will only be visible when a video card is installed into the system.
Security Default Setting: Disabled Password Change Allows you to enable the disable permission to the System and Hard Drive passwords when the admin password is set. Default Setting: Allow Non-Admin Password Changes is not selected Strong Password Allows you to enforce the option to always set strong passwords. Default Setting: Enable Stron Password is not selected. OROM Keyboard Access Allows you to set an option to enter the Option ROM Configuration screens using hotkeys during boot.
Performance • 2 Default Setting: All Intel® SpeedStep™ Allows you to enable or disable the Intel SpeedStep feature. Default Setting: Enable Intel SpeedStep C States Control Allows you to enable or disable the additional processor sleep states. Default Setting: The options C states, C3, C6, Enhanced C-states, and C7 options are enabled. Limit CPUID Allows you to limit the maximum value the processor Standard CPUID Function will support.
Power Management Charger Behavior Allows you to enable or disable the battery charger. The options are; • • Disabled Enabled Default Setting: Enabled POST Behavior Adapter Warnings Allows you to enable or disable the system setup (BIOS) warning messages when you use certain power adapters. Default Setting: Enable Adapter Warnings Mouse/Touchpad Allows you to define how the system handles mouse and touch pad input.
Wireless • • WLAB Bluetooth Default Setting: All the options are selected. Wireless Device Enable Allows you to enable or disable the wireless devices. Maintenance Service Tag Displays the Service Tag of your computer. Asset Tag Allows you to create a system asset tag if an asset tag is not already set. This option is not set by default. SERR Messages Controls the SERR message mechanism. This option is not set by default. Some graphics cards require that the SERR message mechanism be disabled.
39 Diagnostics Diagnostics Device Status Lights Turns on when you turn on the computer and blinks when the computer is in a power management mode. Turns on when the computer reads or writes data. Turns on steadily or blinks to indicate battery charge status. Turns on when wireless networking is enabled. Turns on when a card with Bluetooth wireless technology is enabled.
capacity remains. Each light represents incremental degradation. If five lights appear, less than 60 percent of the charge capacity remains, and you should consider replacing the battery. Keyboard Status Lights The lights located above the keyboard indicate the following: Turns on when the numeric keypad is enabled. Turns on when the Caps Lock function is enabled. Turns on when the Scroll Lock function is enabled.
Contacting Dell 40 Contacting Dell NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1. Visit support.dell.com. 2. Select your support category. 3.
