Home » Dell Manuals » Laptops » Dell XPS 14 L401X » Manual Viewer

Dell XPS 14 L401X XPS 14 Service Manual

Dell XPS 14 L401X Manual

View all Dell XPS 14 L401X manuals

Add to My Manuals
Save this manual to your list of manuals

Dell XPS 14 L401X manual content summary:

Dell XPS 14 L401X | XPS 14 Service Manual - Page 1
Dell™ XPS™ L401X Service Manual Regulatory model: P12G series Regulatory type: P12G001
Dell XPS 14 L401X | XPS 14 Service Manual - Page 2
damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates Dell, the DELL logo, and XPS are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license; Microsoft, Windows, and the Windows
Dell XPS 14 L401X | XPS 14 Service Manual - Page 3
Contents 1 Before You Begin 9 Recommended Tools 9 Turning Off Your Computer 9 Before Working Inside Your Computer 10 2 Battery 13 Removing the Battery 13 Replacing the Battery 14 3 Memory Module(s 15 Removing the Memory Module(s 15 Replacing the Memory Module(s 17 4 Wireless Mini-Card
Dell XPS 14 L401X | XPS 14 Service Manual - Page 4
Keyboard 41 Replacing the Keyboard 43 9 Power-Button Board 45 Removing the Power-Button Board 45 Replacing the Power-Button Board 46 10 Coin-Cell Battery 49 Removing the Coin-Cell Battery 49 Replacing the Coin-Cell
Dell XPS 14 L401X | XPS 14 Service Manual - Page 5
11 Display 53 Display Assembly 53 Removing the Display Assembly 53 Replacing the Display Assembly 55 Display Bezel 56 Removing the Display Bezel 56 Replacing the Display Bezel 57 Display Panel 58 Removing the Display Panel 58 Replacing the Display Panel 59 Display Cable 60 Removing the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 6
14 Speakers 75 Removing the Speakers 75 Replacing the Speaker 76 15 Processor Fan and Heat-Sink Assembly 79 Removing the Processor Fan and Heat-Sink Assembly . 79 Replacing the Processor Fan With Bluetooth® Wireless Technology 93 Removing the Bluetooth Card 93 Replacing the Bluetooth Card
Dell XPS 14 L401X | XPS 14 Service Manual - Page 7
Replacing the AC-Adapter Connector 98 19 System Board 101 Removing the System Board 101 Replacing the System Board 104 Entering the Service Tag in the BIOS 105 20 Flashing the BIOS 107 Contents 7
Dell XPS 14 L401X | XPS 14 Service Manual - Page 8
8 Contents
Dell XPS 14 L401X | XPS 14 Service Manual - Page 9
in this document may require the following tools: • Small flat-blade screwdriver • Phillips screwdriver • Plastic scribe • BIOS executable update program available at support.dell.com Turning Off Your Computer CAUTION: To avoid losing data, save and close all open files and exit all open programs
Dell XPS 14 L401X | XPS 14 Service Manual - Page 10
a component such as a processor by its edges, not by its pins. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell™ is not covered by your warranty. CAUTION: When you disconnect a cable, pull on its connector
Dell XPS 14 L401X | XPS 14 Service Manual - Page 11
from your computer. CAUTION: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 13) before working inside the computer. 7 Remove the battery (see "Removing the Battery" on page 13). 8 Turn the computer top-side up, open the display, and press the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 12
12 Before You Begin
Dell XPS 14 L401X | XPS 14 Service Manual - Page 13
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. Removing the Battery 1 Follow the instructions in "Before You Begin" on page 9. 2 Turn the computer over. 3 Slide the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 14
CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the tabs on the battery with the slots in the battery bay and press the battery down until it clicks into place. 14 Battery
Dell XPS 14 L401X | XPS 14 Service Manual - Page 15
the main battery (see "Removing the Battery" on page 13) before working inside the computer. You can increase your computer memory by installing memory modules on the system board. See "Specifications" in the Setup Guide that shipped with your computer or at support.dell.com/manuals for information
Dell XPS 14 L401X | XPS 14 Service Manual - Page 16
4 3 2 1 1 tabs (5) 3 captive screws (2) 2 memory-module cover 4 base cover CAUTION: To help prevent damage to the memory-module connector, do not use tools to spread the memory module securing clips. 5 Use your fingertips to carefully spread apart the securing clips on each end of the memory-
Dell XPS 14 L401X | XPS 14 Service Manual - Page 17
two connectors, install a memory module in the connector labeled "DIMM A" before you install a memory module in the connector labeled "DIMM B". 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the notch in the memory module with the tab in the memorymodule connector. Memory Module
Dell XPS 14 L401X | XPS 14 Service Manual - Page 18
-module cover into place. 5 Tighten the two captive screws that secure the memory-module cover to the base cover. 6 Replace the battery (see "Replacing the Battery" on page 14). 7 Connect the AC adapter to your computer and an electrical outlet. 8 Turn on the computer. As the computer boots, it
Dell XPS 14 L401X | XPS 14 Service Manual - Page 19
Click Start → Control Panel→ System and Security→ System. CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. Memory Module(s) 19
Dell XPS 14 L401X | XPS 14 Service Manual - Page 20
20 Memory Module(s)
Dell XPS 14 L401X | XPS 14 Service Manual - Page 21
battery (see "Removing the Battery" on page 13) before working inside the computer. NOTE: Dell does not guarantee compatibility or provide support for Mini-Cards from sources other than Dell Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on
Dell XPS 14 L401X | XPS 14 Service Manual - Page 22
5 Disconnect the antenna cables from the Mini-Card(s). 6 Remove the screw that secures the Mini-Card to the system board. NOTE: Your computer can only support either a WWAN Mini-Card or a TV tuner module in the full Mini-Card slot at a time. 22 Wireless Mini-Card(s)
Dell XPS 14 L401X | XPS 14 Service Manual - Page 23
4 3 2 1 1 antenna cables (2) 3 screw 2 Mini-Card 4 system-board connector 7 Lift the Mini-Card(s) out of the system-board connector. Wireless Mini-Card(s) 23
Dell XPS 14 L401X | XPS 14 Service Manual - Page 24
more information, see "Protecting Against Electrostatic Discharge" in the safety information that shipped with your computer. Replacing the Mini-Card(s) 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the new Mini-Card from its packaging. CAUTION: Use firm and even pressure to
Dell XPS 14 L401X | XPS 14 Service Manual - Page 25
color scheme for the Mini-Cards supported by your computer. Connectors on the Battery" on page 14). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. 9 Install the drivers
Dell XPS 14 L401X | XPS 14 Service Manual - Page 26
26 Wireless Mini-Card(s)
Dell XPS 14 L401X | XPS 14 Service Manual - Page 27
a hard drive from a source other than Dell, you need to install an operating system, drivers, and utilities on the new hard drive. Removing the Hard Drive 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13). 3 Remove the memory
Dell XPS 14 L401X | XPS 14 Service Manual - Page 28
the hard drive out of the hard-drive bay. 12 3 4 1 plastic scribe 3 hard drive 2 screws (2) 4 base cover Replacing the Hard Drive 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the new hard drive from its packaging. Save the original packaging for storing or shipping the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 29
6 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. Hard Drive 29
Dell XPS 14 L401X | XPS 14 Service Manual - Page 30
30 Hard Drive
Dell XPS 14 L401X | XPS 14 Service Manual - Page 31
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Drive 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13).
Dell XPS 14 L401X | XPS 14 Service Manual - Page 32
4 3 2 1 1 optical drive 3 screw 2 base cover 4 plastic scribe 7 Lift and pull the optical-drive bezel to remove it from the optical drive. 8 Remove the two screws that secure the optical-drive bracket to the optical drive. 9 Remove the optical-drive bracket. 32 Optical Drive
Dell XPS 14 L401X | XPS 14 Service Manual - Page 33
3 optical-drive bracket 2 optical drive 4 screws (2) Replacing the Optical Drive 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the screw holes on the optical-drive Memory Module(s)" on page 17). 8 Replace the battery (see "Replacing the Battery" on page 14). Optical Drive 33
Dell XPS 14 L401X | XPS 14 Service Manual - Page 34
CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. 34 Optical Drive
Dell XPS 14 L401X | XPS 14 Service Manual - Page 35
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Assembly 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13
Dell XPS 14 L401X | XPS 14 Service Manual - Page 36
1 1 base cover 7 Turn the computer over and open the display as far as possible. 8 Using your fingertip, gently push the tab to release the palm-rest assembly. 36 Palm-Rest Assembly
Dell XPS 14 L401X | XPS 14 Service Manual - Page 37
2 1 1 tab 2 palm-rest assembly 9 Using your fingertips, gently ease the palm-rest assembly from the computer base. 10 Without pulling hard on the palm-rest assembly, place it away from the display as shown in the illustration below. Palm-Rest Assembly 37
Dell XPS 14 L401X | XPS 14 Service Manual - Page 38
computer base. 1 23 4 5 6 1 control-strip cable 3 tabs (3) 5 pull tab 2 top cover 4 palm-rest assembly 6 touch-pad cable connector Replacing the Palm-Rest Assembly 1 Follow the instructions in "Before You Begin" on page 9. 38 Palm-Rest Assembly
Dell XPS 14 L401X | XPS 14 Service Manual - Page 39
screws that secure the palm-rest assembly to the base cover. 7 Follow the instructions from step 5 to step 6 in "Replacing the Optical Drive" on page 33 Memory Module(s)" on page 17). 10 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace
Dell XPS 14 L401X | XPS 14 Service Manual - Page 40
40 Palm-Rest Assembly
Dell XPS 14 L401X | XPS 14 Service Manual - Page 41
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Keyboard 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13
Dell XPS 14 L401X | XPS 14 Service Manual - Page 42
CAUTION: Be extremely careful when removing and handling the keyboard. Failure to do so could result in scratching the display panel. 1 2 3 4 5 6 1 screws (2) 3 top cover 5 connector tabs (2) 2 keyboard 4 keyboard cable 6 system-board connector 9 Without pulling hard on the keyboard, carefully
Dell XPS 14 L401X | XPS 14 Service Manual - Page 43
routing of the keyboard cable and remove the cable from the routing guide on the top cover. 11 Push the connector tabs up and 2 tabs (4) 4 connector tabs (2) 12 Lift the keyboard off the top cover. Replacing the Keyboard 1 Follow the instructions in "Before You Begin" on page 9. Keyboard 43
Dell XPS 14 L401X | XPS 14 Service Manual - Page 44
3 Route the keyboard cable through the routing guide on the top cover. 4 Slide the the Palm-Rest Assembly" on page 38). 8 Follow the instructions from step 5 to step 6 in "Replacing the Optical Drive" 17). 11 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on
Dell XPS 14 L401X | XPS 14 Service Manual - Page 45
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13).
Dell XPS 14 L401X | XPS 14 Service Manual - Page 46
off the top cover. 1 5 2 3 4 1 screw 3 system-board connector 5 top cover 2 power-button board 4 display cable Replacing the Power-Button Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Use the alignment post to place the power-button board on the top cover. 3 Replace the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 47
assembly (see "Replacing the Palm-Rest Assembly" on page 38). 8 Follow the instructions from step 5 to step 6 in "Replacing the Optical Drive" on page 33. Memory Module(s)" on page 17). 11 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace
Dell XPS 14 L401X | XPS 14 Service Manual - Page 48
48 Power-Button Board
Dell XPS 14 L401X | XPS 14 Service Manual - Page 49
-Cell Battery WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. CAUTION: Only a certified service technician should
Dell XPS 14 L401X | XPS 14 Service Manual - Page 50
connector. 3 With the adhesive side of the coin-cell battery facing down, press the coin-cell battery on the slot on the top cover. 4 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly" on page 38). 5 Follow the instructions from step 5 to step 6 in "Replacing the Optical Drive
Dell XPS 14 L401X | XPS 14 Service Manual - Page 51
7 Replace the memory module(s) (see "Replacing the Memory Module(s)" on page 17). 8 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result
Dell XPS 14 L401X | XPS 14 Service Manual - Page 52
52 Coin-Cell Battery
Dell XPS 14 L401X | XPS 14 Service Manual - Page 53
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Assembly 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13
Dell XPS 14 L401X | XPS 14 Service Manual - Page 54
over and open the display as far as possible. 11 Disconnect the speaker cable from the system-board connector. 12 Disconnect the display cable from the routing of the display cable and remove the cable from the routing guide. 14 Note the routing of the Mini-Card antenna cables and slide them up
Dell XPS 14 L401X | XPS 14 Service Manual - Page 55
5 1 2 4 3 1 display assembly 3 speaker cable 5 Mini-Card cable routing 2 screws (4) 4 display cable Replacing the Display Assembly 1 Follow the instructions in "Before You Begin" on page 9. Display 55
Dell XPS 14 L401X | XPS 14 Service Manual - Page 56
routing guide. 5 Connect the display cable to the system-board connector. 6 Connect the speaker cable on page 17). 14 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning to prevent damaging the bezel. 1 Follow the instructions in "Before You Begin" on page 9. 2
Dell XPS 14 L401X | XPS 14 Service Manual - Page 57
1 1 display bezel Replacing the Display Bezel 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the display bezel with the display back cover, and gently snap it into place. 3 Replace the display assembly (
Dell XPS 14 L401X | XPS 14 Service Manual - Page 58
Display Panel Removing the Display Panel 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the antenna cables and remove them from the routing guides on the hinge. 7 Note the routing of the display cable and remove it from the routing guide on the hinge. 8 Lift the display panel
Dell XPS 14 L401X | XPS 14 Service Manual - Page 59
(2) Replacing the Display Panel 1 Follow the instructions in "Before You Begin" on page 9. 2 Place the display panel over the display back cover. 3 Connect the camera cable to the connector on the camera module. 4 Route the display cable through the routing guide on the hinge. 5 Route the Mini
Dell XPS 14 L401X | XPS 14 Service Manual - Page 60
remain inside the computer. Failure to do so may result in damage to the computer. Display Cable Removing the Display Cable 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the display assembly (see "Removing the Display Assembly" on page 53). 3 Remove the display bezel (see
Dell XPS 14 L401X | XPS 14 Service Manual - Page 61
display cable 3 display-cable connector 2 pull tab 7 Gently peel off the display cable from the display panel. Replacing the Display Cable 1 Follow the instructions in "Before You Begin" on page 9. 2 Adhere the display cable along the edge of the display panel. 3 Connect the display cable to the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 62
6 Replace the display assembly ("Replacing the Display Assembly" on page 55). Display-Panel Brackets Removing the Display-Panel Brackets 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the display assembly (see "Removing the Display Assembly" on page 53). 3 Remove the display
Dell XPS 14 L401X | XPS 14 Service Manual - Page 63
Replacing the Display-Panel Brackets 1 Follow the instructions in "Before You Begin" on page 9. 2 Place the display-panel brackets in position. 3 Replace the four screws (two on each side) that secure the display-
Dell XPS 14 L401X | XPS 14 Service Manual - Page 64
64 Display
Dell XPS 14 L401X | XPS 14 Service Manual - Page 65
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Module 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13).
Dell XPS 14 L401X | XPS 14 Service Manual - Page 66
back cover. 13 Remove the camera module from the display back cover. 2 1 1 aluminum foil 2 camera module Replacing the Camera Module 1 Follow the instructions in "Before You Begin" on page 9. 2 Use the alignment posts on the display back cover to place the camera module in position. 3 Adhere the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 67
9 Follow the instructions from step 5 to step 6 in "Replacing the Optical Drive" on page module(s) (see "Replacing the Memory Module(s)" on page 17). 13 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace all screws and ensure that no
Dell XPS 14 L401X | XPS 14 Service Manual - Page 68
68 Camera Module
Dell XPS 14 L401X | XPS 14 Service Manual - Page 69
on your computer). CAUTION: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 13) before working inside the computer. Removing the Top Cover 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove any installed card or blank from the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 70
Board" on page 45). 12 Remove the coin-cell battery (see "Removing the Coin-Cell Battery" on page 49). 13 Remove the four screws that secure the top-cover assembly to the base cover. 14 Turn the computer over. 15 Make note of the speakers cable routing. 16 Remove the nine screws that secure
Dell XPS 14 L401X | XPS 14 Service Manual - Page 71
(9) 19 Remove the Bluetooth-card (see "Removing the Bluetooth Card" on page 93). 20 Remove the daughter board (see "Removing the Daughter Board" on page 89). 21 Remove the AC-adapter connector (see "Removing the AC-Adapter Connector" on page 97). 22 Remove the processor fan and heat-sink assembly
Dell XPS 14 L401X | XPS 14 Service Manual - Page 72
fan and heat-sink assembly (see "Replacing the Processor Fan and Bluetooth-card (see "Replacing the Bluetooth Card" on page 94). 8 Route the speakers cable through the routing guide 14 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly" on page 38). 15 Follow the instructions
Dell XPS 14 L401X | XPS 14 Service Manual - Page 73
Memory Module(s)" on page 17). 19 Replace any blank or card you removed from the Media Card Reader slot. 20 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to
Dell XPS 14 L401X | XPS 14 Service Manual - Page 74
74 Top Cover
Dell XPS 14 L401X | XPS 14 Service Manual - Page 75
14 Speakers WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. CAUTION: Only a certified service technician should
Dell XPS 14 L401X | XPS 14 Service Manual - Page 76
with the cable off the base cover. 3 2 1 1 speaker cable 3 screws (4) 2 speakers (2) Replacing the Speaker 1 Follow the instructions in "Before You Begin" on page 9. 2 Route the speakers cable through the routing guides 3 Align the screw holes on the speakers with the screw holes on the base
Dell XPS 14 L401X | XPS 14 Service Manual - Page 77
Replace the four screws (two on each speaker) that secure the speakers to the base cover. 5 Follow the instructions from step 9 to step 11 in the Memory Module(s)" on page 17). 13 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace all screws
Dell XPS 14 L401X | XPS 14 Service Manual - Page 78
78 Speakers
Dell XPS 14 L401X | XPS 14 Service Manual - Page 79
" on page 13) before working inside the computer. Removing the Processor Fan and Heat-Sink Assembly 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13). 3 Remove the memory module(s) (see "Removing the Memory Module(s)" on page
Dell XPS 14 L401X | XPS 14 Service Manual - Page 80
Removing the Display Assembly" on page 53). 10 Follow the instructions from step 13 to step 18 in "Removing the Top fan cable from the system-board connector and turn the top-cover assembly over. 1 2 1 processor-fan cable 2 top-cover assembly 13 Remove the screw that secures the processor fan
Dell XPS 14 L401X | XPS 14 Service Manual - Page 81
14 In sequential order (indicated on the processor heat-sink), loosen the five captive screws that secure the processor fan and heat-sink assembly to the system board. 15 Make note of the processor-fan cable routing and carefully lift the processor fan and heat-sink assembly away from the top-cover
Dell XPS 14 L401X | XPS 14 Service Manual - Page 82
Replace the screw that secures the processor fan and heat-sink assembly to the top-cover assembly. 6 Follow the instructions from step 9 to step 11 in Replacing the Memory Module(s)" on page 17). 14 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer,
Dell XPS 14 L401X | XPS 14 Service Manual - Page 83
Processor Fan and Heat-Sink Assembly 83
Dell XPS 14 L401X | XPS 14 Service Manual - Page 84
84 Processor Fan and Heat-Sink Assembly
Dell XPS 14 L401X | XPS 14 Service Manual - Page 85
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Module 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13).
Dell XPS 14 L401X | XPS 14 Service Manual - Page 86
11 Turn the top-cover assembly over. 12 Remove the processor fan and heat-sink assembly (see "Removing the Processor Fan and Heat-Sink Assembly" on page 79). CAUTION: To prevent intermittent contact between the ZIF-socket cam screw and the processor when removing or replacing
Dell XPS 14 L401X | XPS 14 Service Manual - Page 87
to bend the pins on the processor module. 14 Lift the processor module off the ZIF socket. the processor module, hold the screw driver perpendicular to the processor module when fan and heat-sink assembly (see "Replacing the Processor Fan and Heat-Sink Assembly" on page 82). 6 Follow the instructions
Dell XPS 14 L401X | XPS 14 Service Manual - Page 88
the Mini-Card(s)" on page 24). 13 Replace the memory module(s) (see "Replacing the Memory Module(s)" on page 17). 14 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer
Dell XPS 14 L401X | XPS 14 Service Manual - Page 89
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13).
Dell XPS 14 L401X | XPS 14 Service Manual - Page 90
-cover assembly over. 12 Remove the processor fan and heat-sink assembly (see "Removing the Processor Fan and Heat-Sink Assembly" on page 79). 13 Lift the connector latch and disconnect the daughter-board cable from the connector on the daughter board. 14 Remove the screw that secures the daughter
Dell XPS 14 L401X | XPS 14 Service Manual - Page 91
Replace the processor fan and heat-sink assembly (see "Replacing the Processor Fan and Heat-Sink Assembly" on page 82). 6 Follow the instructions from step 9 the Memory Module(s)" on page 17). 14 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer,
Dell XPS 14 L401X | XPS 14 Service Manual - Page 92
92 Daughter Board
Dell XPS 14 L401X | XPS 14 Service Manual - Page 93
to the system board, remove the main battery (see "Removing the Battery" on page 13) before working inside the computer. Removing the Bluetooth Card 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13). 3 Remove the memory module
Dell XPS 14 L401X | XPS 14 Service Manual - Page 94
-card cable from the connector on the Bluetooth card. 13 Release the Bluetooth card from the tab on the top cover. 14 Lift the Bluetooth card off the top cover. 3 2 1 1 Bluetooth card 3 Bluetooth-card cable 2 tab Replacing the Bluetooth Card 1 Follow the instructions in "Before You Begin" on page
Dell XPS 14 L401X | XPS 14 Service Manual - Page 95
secure it in place. 3 Connect the Bluetooth-card cable to the connector on the Bluetooth card. 4 Follow the instructions from step 9 to step 11 in " Memory Module(s)" on page 17). 12 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer, replace all
Dell XPS 14 L401X | XPS 14 Service Manual - Page 96
96 Internal Card With Bluetooth® Wireless Technology
Dell XPS 14 L401X | XPS 14 Service Manual - Page 97
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Connector 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 13
Dell XPS 14 L401X | XPS 14 Service Manual - Page 98
the routing guide. 14 Remove the screw that secures the AC-adapter connector to the top cover. 15 Lift the AC-adapter connector off the top cover. 1 2 3 1 screw 3 AC-adapter connector cable 2 AC adapter connector Replacing the AC-Adapter Connector 1 Follow the instructions
Dell XPS 14 L401X | XPS 14 Service Manual - Page 99
connector cable through the routing guide. 5 Connect the AC-adapter connector cable to the system-board connector. 6 Follow the instructions from step 9 to step the Memory Module(s)" on page 17). 14 Replace the battery (see "Replacing the Battery" on page 14). CAUTION: Before turning on the computer
Dell XPS 14 L401X | XPS 14 Service Manual - Page 100
100 AC-Adapter Connector
Dell XPS 14 L401X | XPS 14 Service Manual - Page 101
avoid touching pins and contacts. Removing the System Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove any installed card or blank from the Media Card Reader slot. 3 Remove the battery (see "Removing the Battery" on page 13). 4 Remove the memory module(s) (see "Removing the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 102
their connectors on the system board. 12 Follow the instructions from step 13 to step 18 in "Removing the Top Cover" on page 69. 13 Remove the processor fan and heat-sink assembly (see "Removing the Processor Fan and Heat-Sink Assembly" on page 79). 14 Remove the processor module (see "Removing the
Dell XPS 14 L401X | XPS 14 Service Manual - Page 103
1 power-button board cable connector 2 touch-pad status light cable connector 3 coin-cell battery cable 15 Remove the AC-adapter connector (see "Removing the AC-Adapter Connector" on page 97). 16 Disconnect the Bluetooth-card cable, logo-light cable, and daughter-board cable from their connectors on
Dell XPS 14 L401X | XPS 14 Service Manual - Page 104
fan and heat-sink assembly (see "Replacing the Processor Fan and Heat-Sink Assembly" on page 82). 8 Follow the instructions from step 9 to step 11 in "Replacing the Top Cover" on page 72. 9 Connect the Bluetooth the instructions from step 5 to step 6 in "Replacing the Optical Drive" on page 33. 14
Dell XPS 14 L401X | XPS 14 Service Manual - Page 105
on page 17). 17 Replace the battery (see "Replacing the Battery" on page 14). 18 Replace any blank or card battery is installed properly. 2 Turn on the computer. 3 Press during POST to enter the system setup program. 4 Navigate to the security tab and enter the service tag in the Set Service
Dell XPS 14 L401X | XPS 14 Service Manual - Page 106
106 System Board
Dell XPS 14 L401X | XPS 14 Service Manual - Page 107
is available or when replacing the system board. To flash the BIOS: 1 Turn on the computer. 2 Go to support.dell.com/support/downloads. 3 Locate the BIOS update file for your computer: NOTE: The Service Tag for your computer is located on a label at the bottom of your computer. If you have your
Dell XPS 14 L401X | XPS 14 Service Manual - Page 108
8 Double-click the file icon on the desktop and follow the instructions on the screen. 108 Flashing the BIOS

Section	Page
Dell™ XPS™ L401X Service Manual	1
Notes, Cautions, and Warnings	2
Contents	3
1	9
Before You Begin	9
Recommended Tools	9
Turning Off Your Computer	9
1 Save and close all open files and exit all open programs.	9
2 To shut down the operating system, click Start and then click Shut Down.	9
3 Ensure that the computer is turned off. If your computer did not automatically turn off when you shut down the operating system, press and hold the power button until the computer turns off.	9
Before Working Inside Your Computer	10
1 Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.	10
2 Turn off your computer (see \	10
3 Disconnect all telephone or network cables from the computer.	10
4 Press and eject any installed cards from the Media Card Reader.	10
5 Disconnect your computer and all attached devices from their electrical outlets.	10
6 Disconnect all attached devices from your computer.	11
7 Remove the battery (see \	11
8 Turn the computer top-side up, open the display, and press the power button to ground the system board.	11
2	13
Battery	13
Removing the Battery	13
1 Follow the instructions in \	13
2 Turn the computer over.	13
3 Slide the battery release latch to the side.	13
4 Lift the battery up at an angle and remove it from the battery bay.	13
Replacing the Battery	14
1 Follow the instructions in \	14
2 Align the tabs on the battery with the slots in the battery bay and press the battery down until it clicks into place.	14
3	15
Memory Module(s)	15
Removing the Memory Module(s)	15
1 Follow the instructions in \	15
2 Remove the battery (see \	15
3 Loosen the two captive screws that secure the memory-module cover to the base cover.	15
4 Use your fingertips to pry out the memory-module cover and lift it off the base cover.	15
5 Use your fingertips to carefully spread apart the securing clips on each end of the memory-module connector until the memory module pops up.	16
6 Remove the memory module from the memory-module connector.	17
Replacing the Memory Module(s)	17
1 Follow the instructions in \	17
2 Align the notch in the memory module with the tab in the memory- module connector.	17
3 Slide the memory module firmly into the memory-module connector at a 45-degree angle, and press the memory module down until it clicks into place. If you do not hear the click, remove the memory module and reinstall it.	18
4 Align the tabs on the memory-module cover with the slots on the base cover and snap the memory-module cover into place.	18
5 Tighten the two captive screws that secure the memory-module cover to the base cover.	18
6 Replace the battery (see \	18
7 Connect the AC adapter to your computer and an electrical outlet.	18
8 Turn on the computer.	18
4	21
Wireless Mini-Card(s)	21
Removing the Mini-Card(s)	21
1 Follow the instructions in \	21
2 Remove the battery (see \	21
3 Loosen the captive screw that secures the Mini-Card cover to the base cover.	21
4 Pry out the Mini-Card cover using your finger.	22
5 Disconnect the antenna cables from the Mini-Card(s).	22
6 Remove the screw that secures the Mini-Card to the system board.	22
7 Lift the Mini-Card(s) out of the system-board connector.	23
Replacing the Mini-Card(s)	24
1 Follow the instructions in \	24
2 Remove the new Mini-Card from its packaging.	24
3 Insert the Mini-Card connector at a 45-degree angle into the system-board connector.	25
4 Press the other end of the Mini-Card down into the slot on the system board and replace the screw that secures the Mini-Card to the system board.	25
5 Connect the appropriate antenna cables to the Mini-Card you are installing. The following table provides the antenna cable color scheme for the Mini-Cards supported by your computer.	25
6 Align the tabs on the Mini-Card cover with the slots on the base cover and snap the Mini-Card cover into place.	25
7 Replace the captive screw that secures the Mini-Card cover to the base cover.	25
8 Replace the battery (see \	25
9 Install the drivers and utilities for your computer, as required.	25
5	27
Hard Drive	27
Removing the Hard Drive	27
1 Follow the instructions in \	27
2 Remove the battery (see \	27
3 Remove the memory module(s) (see \	27
4 Remove the two screws that secure the hard drive to the base cover.	27
5 Insert a plastic scribe into the slot on the base cover and push the hard-drive out.	28
6 Slide the hard drive out of the hard-drive bay.	28
Replacing the Hard Drive	28
1 Follow the instructions in \	28
2 Remove the new hard drive from its packaging.	28
3 Slide the hard drive into the hard-drive bay until it is fully seated.	28
4 Replace the two screws that secure the hard drive to the base cover.	28
5 Replace the memory module(s) (see \	28
6 Replace the battery (see \	29
6	31
Optical Drive	31
Removing the Optical Drive	31
1 Follow the instructions in \	31
2 Remove the battery (see \	31
3 Remove the memory module(s) (see \	31
4 Remove the screw that secures the optical drive to the base cover.	31
5 Insert a plastic scribe into the slot on the base cover and push the optical drive out.	31
6 Slide the optical drive out of the optical-drive bay.	31
7 Lift and pull the optical-drive bezel to remove it from the optical drive.	32
8 Remove the two screws that secure the optical-drive bracket to the optical drive.	32
9 Remove the optical-drive bracket.	32
Replacing the Optical Drive	33
1 Follow the instructions in \	33
2 Align the screw holes on the optical-drive bracket with the screw holes on the optical drive.	33
3 Replace the two screws that secure the optical-drive bracket to the optical drive.	33
4 Snap the optical-drive bezel onto the optical drive.	33
5 Slide the optical drive into the optical-drive bay until it is fully seated.	33
6 Replace the screw that secures the optical drive to the base cover.	33
7 Replace the memory module(s) (see \	33
8 Replace the battery (see \	33
7	35
Palm-Rest Assembly	35
Removing the Palm-Rest Assembly	35
1 Follow the instructions in \	35
2 Remove the battery (see \	35
3 Remove the memory module(s) (see \	35
4 Remove the hard drive (see \	35
5 Follow the instructions from step 4 to step 6 in \	35
6 Remove the seven screws that secure the palm-rest assembly to the base cover.	35
7 Turn the computer over and open the display as far as possible.	36
8 Using your fingertip, gently push the tab to release the palm-rest assembly.	36
9 Using your fingertips, gently ease the palm-rest assembly from the computer base.	37
10 Without pulling hard on the palm-rest assembly, place it away from the display as shown in the illustration below.	37
11 Lift the connector latch and pull the pull-tab to disconnect the touch-pad cable from the system-board connector.	38
12 Disconnect the control-strip cable from the system-board connector.	38
13 Lift the palm-rest assembly off the computer base.	38
Replacing the Palm-Rest Assembly	38
1 Follow the instructions in \	38
2 Connect the control-strip cable to the system-board connector.	39
3 Slide the touch-pad cable into the system-board connector and press down on the connector latch to secure the cable.	39
4 Align the three tabs on the palm-rest assembly with the slots on the top cover and gently snap the palm-rest assembly into place.	39
5 Close the display and turn the computer over.	39
6 Replace the seven screws that secure the palm-rest assembly to the base cover.	39
7 Follow the instructions from step 5 to step 6 in \	39
8 Replace the hard drive (see \	39
9 Replace the memory module(s) (see \	39
10 Replace the battery (see \	39
8	41
Keyboard	41
Removing the Keyboard	41
1 Follow the instructions in \	41
2 Remove the battery (see \	41
3 Remove the memory module(s) (see \	41
4 Remove the hard drive (see \	41
5 Follow the instructions from step 4 to step 6 in \	41
6 Remove the palm-rest assembly (see \	41
7 Remove the two screws that secure the keyboard to the top cover.	41
8 Push the connector tabs up and disconnect the keyboard cable from the system-board connector.	41
9 Without pulling hard on the keyboard, carefully lift the keyboard and slide the keyboard tabs out of the slots on the top cover.	42
10 Note the routing of the keyboard cable and remove the cable from the routing guide on the top cover.	43
11 Push the connector tabs up and pull the pull-tab to disconnect the keyboard backlight cable from the system-board connector.	43
12 Lift the keyboard off the top cover.	43
Replacing the Keyboard	43
1 Follow the instructions in \	43
2 Slide the keyboard backlight cable into the system-board connector and press the connector tabs into the connector to secure the cable.	44
3 Route the keyboard cable through the routing guide on the top cover.	44
4 Slide the keyboard cable into the system-board connector and press the connector tabs into the connector to secure the cable.	44
5 Slide the tabs on the keyboard into the slots on the top cover and lower the keyboard into place.	44
6 Replace the two screws that secure the keyboard to the top cover.	44
7 Replace the palm-rest assembly (see \	44
8 Follow the instructions from step 5 to step 6 in \	44
9 Replace the hard drive (see \	44
10 Replace the memory module(s) (see \	44
11 Replace the battery (see \	44
9	45
Power-Button Board	45
Removing the Power-Button Board	45
1 Follow the instructions in \	45
2 Remove the battery (see \	45
3 Remove the memory module(s) (see \	45
4 Remove the hard drive (see \	45
5 Follow the instructions from step 4 to step 6 in \	45
6 Remove the palm-rest assembly (see \	45
7 Remove the keyboard (see \	45
8 Disconnect the display cable from the system-board connector.	45
9 Move the display cable away from the power-button board cable.	45
10 Disconnect the power-button board cable from the system-board connector.	45
11 Remove the screw that secures the power-button board to the top cover.	45
12 Lift the power-button board off the top cover.	46
Replacing the Power-Button Board	46
1 Follow the instructions in \	46
2 Use the alignment post to place the power-button board on the top cover.	46
3 Replace the screw that secures the power-button board to the top cover.	46
4 Connect the power button-board cable to the system-board connector.	46
5 Connect the display cable to the system-board connector.	47
6 Replace the keyboard (see \	47
7 Replace the palm-rest assembly (see \	47
8 Follow the instructions from step 5 to step 6 in \	47
9 Replace the hard drive (see \	47
10 Replace the memory module(s) (see \	47
11 Replace the battery (see \	47
10	49
Coin-Cell Battery	49
Removing the Coin-Cell Battery	49
1 Follow the instructions in \	49
2 Remove the battery (see \	49
3 Remove the memory module(s) (see \	49
4 Remove the hard drive (see \	49
5 Follow the instructions from step 4 to step 6 in \	49
6 Remove the palm-rest assembly (see \	49
7 Disconnect the coin-cell battery cable from the system-board connector.	49
8 The coin-cell battery is glued to a slot on the top cover. Using a plastic scribe, gently pry the coin-cell battery off the slot.	49
Replacing the Coin-Cell Battery	50
1 Follow the instructions in \	50
2 Connect the coin-cell battery cable to the system-board connector.	50
3 With the adhesive side of the coin-cell battery facing down, press the coin-cell battery on the slot on the top cover.	50
4 Replace the palm-rest assembly (see \	50
5 Follow the instructions from step 5 to step 6 in \	50
6 Replace the hard drive (see \	50
7 Replace the memory module(s) (see \	51
8 Replace the battery (see \	51
11	53
Display	53
Display Assembly	53
Removing the Display Assembly	53
1 Follow the instructions in \	53
2 Remove the battery (see \	53
3 Remove the memory module(s) (see \	53
4 Remove the Mini-Card(s) (see \	53
5 Remove the hard drive (see \	53
6 Follow the instructions from step 4 to step 6 in \	53
7 Remove the palm-rest assembly (see \	53
8 Remove the keyboard (see \	53
9 Remove the two screws that secure the display assembly to the base cover.	53
10 Turn the computer over and open the display as far as possible.	54
11 Disconnect the speaker cable from the system-board connector.	54
12 Disconnect the display cable from the system-board connector.	54
13 Note the routing of the display cable and remove the cable from the routing guide.	54
14 Note the routing of the Mini-Card antenna cables and slide them up through the slot on the computer base.	54
15 Remove the four screws that secure the display assembly to the top cover.	54
16 Lift the display assembly off the computer base.	54
Replacing the Display Assembly	55
1 Follow the instructions in \	55
2 Place the display assembly in position and replace the four screws that secure the display assembly to the top cover.	56
3 Route the Mini-Card antenna cables through the slot on the computer base.	56
4 Route the display cable through the routing guide.	56
5 Connect the display cable to the system-board connector.	56
6 Connect the speaker cable to the system-board connector.	56
7 Replace the two screws that secure the display assembly to the base cover.	56
8 Replace the keyboard (see \	56
9 Replace the palm-rest assembly (see \	56
10 Follow the instructions from step 5 to step 6 in \	56
11 Replace the hard drive (see \	56
12 Replace the Mini-Card(s) (see \	56
13 Replace the memory module(s) (see \	56
14 Replace the battery (see \	56
Display Bezel	56
Removing the Display Bezel	56
1 Follow the instructions in \	56
2 Remove the display assembly (see \	56
3 Using your fingertips, carefully pry up the inside edge of the display bezel.	56
4 Lift the display bezel off the display assembly.	56
Replacing the Display Bezel	57
1 Follow the instructions in \	57
2 Align the display bezel with the display back cover, and gently snap it into place.	57
3 Replace the display assembly (see \	57
Display Panel	58
Removing the Display Panel	58
1 Follow the instructions in \	58
2 Remove the display assembly (see \	58
3 Remove the display bezel (see \	58
4 Disconnect the camera cable from the connector on the camera module.	58
5 Remove the eight screws that secure the display panel to the display back cover.	58
6 Note the routing of the Mini-Card antenna cables and remove them from the routing guides on the hinge.	58
7 Note the routing of the display cable and remove it from the routing guide on the hinge.	58
8 Lift the display panel off the display back cover.	58
Replacing the Display Panel	59
1 Follow the instructions in \	59
2 Place the display panel over the display back cover.	59
3 Connect the camera cable to the connector on the camera module.	59
4 Route the display cable through the routing guide on the hinge.	59
5 Route the Mini-Card antenna cables through the routing guide on the hinge.	59
6 Replace the eight screws that secure the display panel to the display back cover.	59
7 Replace the display bezel (see \	59
8 Replace the display assembly (see \	60
Display Cable	60
Removing the Display Cable	60
1 Follow the instructions in \	60
2 Remove the display assembly (see \	60
3 Remove the display bezel (see \	60
4 Remove the display panel (see \	60
5 Turn the display panel over and place it on a clean surface.	60
6 Pull the pull-tab to disconnect the display cable from the connector on the display panel.	60
7 Gently peel off the display cable from the display panel.	61
Replacing the Display Cable	61
1 Follow the instructions in \	61
2 Adhere the display cable along the edge of the display panel.	61
3 Connect the display cable to the connector on the display panel.	61
4 Replace the display panel (see \	61
5 Replace the display bezel (see \	61
6 Replace the display assembly (\	62
Display-Panel Brackets	62
Removing the Display-Panel Brackets	62
1 Follow the instructions in \	62
2 Remove the display assembly (see \	62
3 Remove the display bezel (see \	62
4 Remove the display panel (see \	62
5 Remove the four screws (two on each side) that secure the display-panel brackets to the display panel.	62
6 Remove the display-panel brackets off the display panel.	62
Replacing the Display-Panel Brackets	63
1 Follow the instructions in \	63
2 Place the display-panel brackets in position.	63
3 Replace the four screws (two on each side) that secure the display-panel brackets to the display panel.	63
4 Replace the display panel (see \	63
5 Replace the display bezel (see \	63
6 Replace the display assembly (\	63
Camera Module	65
Removing the Camera Module	65
Replacing the Camera Module	66
13	69
Top Cover	69
Removing the Top Cover	69
1 Follow the instructions in \	69
2 Remove any installed card or blank from the Media Card Reader slot.	69
3 Remove the battery (see \	69
4 Remove the memory module(s) (see \	69
5 Remove the Mini-Card(s) (see \	69
6 Remove the hard drive (see \	69
7 Follow the instructions from step 4 to step 6 in \	69
8 Remove the palm-rest assembly (see \	69
9 Remove the keyboard (see \	69
10 Remove the display assembly (see \	69
11 Remove the power-button board (see \	70
12 Remove the coin-cell battery (see \	70
13 Remove the four screws that secure the top-cover assembly to the base cover.	70
14 Turn the computer over.	70
15 Make note of the speakers cable routing.	70
16 Remove the nine screws that secure the top-cover assembly to the base cover.	70
17 Using your fingertips, gently ease the top-cover assembly from the base cover.	70
18 Lift the top cover assembly off the base cover.	70
19 Remove the Bluetooth-card (see \	71
20 Remove the daughter board (see \	71
21 Remove the AC-adapter connector (see \	71
22 Remove the processor fan and heat-sink assembly (see \	71
23 Remove the processor module (see \	71
24 Remove the system board (see \	72
Replacing the Top Cover	72
1 Follow the instructions in \	72
2 Replace the system board (see \	72
3 Replace the processor module (see \	72
4 Replace the processor fan and heat-sink assembly (see \	72
5 Replace the AC-adapter connector (see \	72
6 Replace the daughter board (see \	72
7 Replace the Bluetooth-card (see \	72
8 Route the speakers cable through the routing guide.	72
9 Align the tabs on the top cover with the slots on the base cover and snap the top-cover assembly onto the base cover.	72
10 Replace the nine screws that secure the top-cover assembly to the base cover.	72
11 Turn the computer over and replace the four screws that secure the top-cover assembly to the base cover.	72
12 Replace the display assembly (see \	72
13 Replace the keyboard (see \	72
14 Replace the palm-rest assembly (see \	72
15 Follow the instructions from step 5 to step 6 in \	72
16 Replace the hard drive (see \	72
17 Replace the Mini-Card(s) (see \	72
18 Replace the memory module(s) (see \	73
19 Replace any blank or card you removed from the Media Card Reader slot.	73
20 Replace the battery (see \	73
14	75
Speakers	75
Removing the Speakers	75
1 Follow the instructions in \	75
2 Remove the battery (see \	75
3 Remove the memory module(s) (see \	75
4 Remove the Mini-Card(s) (see \	75
5 Remove the hard drive (see \	75
6 Follow the instructions from step 4 to step 6 in \	75
7 Remove the palm-rest assembly (see \	75
8 Remove the keyboard (see \	75
9 Remove the display assembly (see \	75
10 Follow the instructions from step 13 to step 18 in \	75
11 Make note of the speakers cable routing and remove the cable from the routing guides.	76
12 Remove the four screws (two on each speaker) that secure the speakers to the base cover.	76
13 Lift the speakers along with the cable off the base cover.	76
Replacing the Speaker	76
1 Follow the instructions in \	76
2 Route the speakers cable through the routing guides	76
3 Align the screw holes on the speakers with the screw holes on the base cover.	76
4 Replace the four screws (two on each speaker) that secure the speakers to the base cover.	77
5 Follow the instructions from step 9 to step 11 in \	77
6 Replace the display assembly (see \	77
7 Replace the keyboard (see \	77
8 Replace the palm-rest assembly (see \	77
9 Follow the instructions from step 5 to step 6 in \	77
10 Replace the hard drive (see \	77
11 Replace the Mini-Card(s) (see \	77
12 Replace the memory module(s) (see \	77
13 Replace the battery (see \	77
15	79
Processor Fan and Heat-Sink Assembly	79
Removing the Processor Fan and Heat-Sink Assembly	79
1 Follow the instructions in \	79
2 Remove the battery (see \	79
3 Remove the memory module(s) (see \	79
4 Remove the Mini-Card(s) (see \	79
5 Remove the hard drive (see \	79
6 Follow the instructions from step 4 to step 6 in \	79
7 Remove the palm-rest assembly (see \	79
8 Remove the keyboard (see \	80
9 Remove the display assembly (see \	80
10 Follow the instructions from step 13 to step 18 in \	80
11 Turn the top-cover assembly over.	80
12 Disconnect the processor-fan cable from the system-board connector and turn the top-cover assembly over.	80
13 Remove the screw that secures the processor fan and heat-sink assembly to the top cover.	80
14 In sequential order (indicated on the processor heat-sink), loosen the five captive screws that secure the processor fan and heat-sink assembly to the system board.	81
15 Make note of the processor-fan cable routing and carefully lift the processor fan and heat-sink assembly away from the top-cover assembly.	81
Replacing the Processor Fan and Heat-Sink Assembly	82
1 Follow the instructions in \	82
2 Clean the thermal grease from the bottom of the processor fan and heat- sink assembly and reapply it.	82
3 Route the processor-fan cable through the slot in the top cover.	82
4 Align the five captive screws on the processor fan and heat sink assembly with the screw holes on the system board and tighten the screws in sequential order (indicated on the processor heat-sink).	82
5 Replace the screw that secures the processor fan and heat-sink assembly to the top-cover assembly.	82
6 Follow the instructions from step 9 to step 11 in \	82
7 Replace the display assembly (see \	82
8 Replace the keyboard (see \	82
9 Replace the palm-rest assembly (see \	82
10 Follow the instructions from step 5 to step 6 in \	82
11 Replace the hard drive (see \	82
12 Replace the Mini-Card(s) (see \	82
13 Replace the memory module(s) (see \	82
14 Replace the battery (see \	82
16	85
Processor Module	85
Removing the Processor Module	85
1 Follow the instructions in \	85
2 Remove the battery (see \	85
3 Remove the memory module(s) (see \	85
4 Remove the Mini-Card(s) (see \	85
5 Remove the hard drive (see \	85
6 Follow the instructions from step 4 to step 6 in \	85
7 Remove the palm-rest assembly (see \	85
8 Remove the keyboard (see \	85
9 Remove the display assembly (see \	85
10 Follow the instructions from step 13 to step 18 in \	85
11 Turn the top-cover assembly over.	86
12 Remove the processor fan and heat-sink assembly (see \	86
13 To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIF-socket cam screw counterclockwise until it comes to the cam stop.	86
14 Lift the processor module off the ZIF socket.	87
Replacing the Processor Module	87
1 Follow the instructions in \	87
2 Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket.	87
3 Place the processor module lightly in the ZIF socket and ensure that the processor module is positioned correctly.	87
4 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board.	87
5 Replace the processor fan and heat-sink assembly (see \	87
6 Follow the instructions from step 9 to step 11 in \	87
7 Replace the display assembly (see \	87
8 Replace the keyboard (see \	87
9 Replace the palm-rest assembly (see \	87
10 Follow the instructions from step 5 to step 6 in \	87
11 Replace the hard drive (see \	88
12 Replace the Mini-Card(s) (see \	88
13 Replace the memory module(s) (see \	88
14 Replace the battery (see \	88
17	89
Daughter Board	89
Removing the Daughter Board	89
1 Follow the instructions in \	89
2 Remove the battery (see \	89
3 Remove the memory module(s) (see \	89
4 Remove the Mini-Card(s) (see \	89
5 Remove the hard drive (see \	89
6 Follow the instructions from step 4 to step 6 in \	89
7 Remove the palm-rest assembly (see \	89
8 Remove the keyboard (see \	89
9 Remove the display assembly (see \	89
10 Follow the instructions from step 13 to step 18 in \	89
11 Turn the top-cover assembly over.	90
12 Remove the processor fan and heat-sink assembly (see \	90
13 Lift the connector latch and disconnect the daughter-board cable from the connector on the daughter board.	90
14 Remove the screw that secures the daughter board to the top cover.	90
15 Carefully ease the connectors on the daughter board out of the slots in the top cover, and lift the daughter board out of the top cover.	90
Replacing the Daughter Board	91
1 Follow the instructions in \	91
2 Align the connectors on the daughter board with the slots on the top cover and place it on the top cover.	91
3 Replace the screw that secures the daughter board to the top cover.	91
4 Slide the daughter-board cable into the connector on the daughter board and press the connector latch down to secure the cable.	91
5 Replace the processor fan and heat-sink assembly (see \	91
6 Follow the instructions from step 9 to step 11 in \	91
7 Replace the display assembly (see \	91
8 Replace the keyboard (see \	91
9 Replace the palm-rest assembly (see \	91
10 Follow the instructions from step 5 to step 6 in \	91
11 Replace the hard drive (see \	91
12 Replace the Mini-Card(s) (see \	91
13 Replace the memory module(s) (see \	91
14 Replace the battery (see \	91
18	93
Internal Card With Bluetooth® Wireless Technology	93
Removing the Bluetooth Card	93
1 Follow the instructions in \	93
2 Remove the battery (see \	93
3 Remove the memory module(s) (see \	93
4 Remove the Mini-Card(s) (see \	93
5 Remove the hard drive (see \	93
6 Follow the instructions from step 4 to step 6 in \	93
7 Remove the palm-rest assembly (see \	93
8 Remove the keyboard (see \	93
9 Remove the display assembly (see \	93
10 Follow the instructions from step 13 to step 18 in \	94
11 Turn the top-cover assembly over.	94
12 Disconnect the Bluetooth-card cable from the connector on the Bluetooth card.	94
13 Release the Bluetooth card from the tab on the top cover.	94
14 Lift the Bluetooth card off the top cover.	94
Replacing the Bluetooth Card	94
1 Follow the instructions in \	94
2 Slide the Bluetooth card into the slot on the top cover and secure it in place.	95
3 Connect the Bluetooth-card cable to the connector on the Bluetooth card.	95

Match case Limit results 1 per page

Dell™ XPS™ L401X Service

Manual

Regulatory model: P12G series

Regulatory type: P12G001