Dell Inspiron 14 3000 Series User manual

Inspiron 14 3000
Service Manual
Regulatory Model: P76G
Regulatory Type: P76G002
August 2019
Rev. A01

Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid
the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2018 - 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.

Chapter 1: Before working inside your computer........................................................................... 8
Before you begin .................................................................................................................................................................8
Safety instructions.............................................................................................................................................................. 8
Recommended tools........................................................................................................................................................... 8
Screw list............................................................................................................................................................................... 9
Chapter 2: After working inside your computer............................................................................10
Chapter 3: Removing the battery..................................................................................................11
Procedure............................................................................................................................................................................. 11
Chapter 4: Replacing the battery................................................................................................. 12
Procedure.............................................................................................................................................................................12
Chapter 5: Removing the optical drive......................................................................................... 13
Prerequisites........................................................................................................................................................................13
Procedure.............................................................................................................................................................................13
Chapter 6: Replacing the optical drive......................................................................................... 15
Procedure............................................................................................................................................................................ 15
Post-requisites....................................................................................................................................................................15
Chapter 7: Removing the keyboard.............................................................................................. 16
Prerequisites....................................................................................................................................................................... 16
Procedure............................................................................................................................................................................ 16
Chapter 8: Replacing the keyboard.............................................................................................. 18
Procedure.............................................................................................................................................................................18
Post-requisites....................................................................................................................................................................18
Chapter 9: Removing the base cover............................................................................................ 19
Prerequisites....................................................................................................................................................................... 19
Procedure............................................................................................................................................................................ 19
Chapter 10: Replacing the base cover.......................................................................................... 22
Procedure............................................................................................................................................................................22
Post-requisites................................................................................................................................................................... 22
Chapter 11: Removing the memory modules................................................................................. 23
Prerequisites.......................................................................................................................................................................23
Procedure............................................................................................................................................................................23
Chapter 12: Replacing the memory modules.................................................................................24
Contents
Contents 3

Procedure............................................................................................................................................................................24
Post-requisites................................................................................................................................................................... 24
Chapter 13: Removing the hard drive...........................................................................................25
Prerequisites.......................................................................................................................................................................25
Procedure............................................................................................................................................................................25
Chapter 14: Replacing the hard drive........................................................................................... 27
Procedure............................................................................................................................................................................ 27
Post-requisites................................................................................................................................................................... 27
Chapter 15: Removing the wireless card...................................................................................... 28
Prerequisites.......................................................................................................................................................................28
Procedure............................................................................................................................................................................28
Chapter 16: Replacing the wireless card...................................................................................... 29
Procedure............................................................................................................................................................................29
Post-requisites...................................................................................................................................................................29
Chapter 17: Removing the I/O board............................................................................................30
Prerequisites.......................................................................................................................................................................30
Procedure............................................................................................................................................................................30
Chapter 18: Replacing the I/O board............................................................................................ 31
Procedure.............................................................................................................................................................................31
Post-requisites....................................................................................................................................................................31
Chapter 19: Removing the coin-cell battery................................................................................. 32
Prerequisites.......................................................................................................................................................................32
Procedure............................................................................................................................................................................32
Chapter 20: Replacing the coin-cell battery................................................................................ 33
Procedure............................................................................................................................................................................33
Post-requisites................................................................................................................................................................... 33
Chapter 21: Removing the speakers............................................................................................. 34
Prerequisites.......................................................................................................................................................................34
Procedure............................................................................................................................................................................34
Chapter 22: Replacing the speakers............................................................................................ 35
Procedure............................................................................................................................................................................35
Post-requisites...................................................................................................................................................................35
Chapter 23: Removing the heat sink............................................................................................ 36
Prerequisites.......................................................................................................................................................................36
Procedure............................................................................................................................................................................36
Chapter 24: Replacing the heat sink............................................................................................ 38
4Contents

Procedure............................................................................................................................................................................38
Post-requisites...................................................................................................................................................................38
Chapter 25: Removing the fan..................................................................................................... 39
Prerequisites.......................................................................................................................................................................39
Procedure............................................................................................................................................................................39
Chapter 26: Replacing the fan..................................................................................................... 40
Procedure............................................................................................................................................................................40
Post-requisites...................................................................................................................................................................40
Chapter 27: Removing the power-button board............................................................................41
Prerequisites........................................................................................................................................................................41
Procedure.............................................................................................................................................................................41
Chapter 28: Replacing the power-button board........................................................................... 42
Procedure............................................................................................................................................................................42
Post-requisites................................................................................................................................................................... 42
Chapter 29: Removing the display assembly................................................................................ 43
Prerequisites.......................................................................................................................................................................43
Procedure............................................................................................................................................................................43
Chapter 30: Replacing the display assembly................................................................................ 45
Procedure............................................................................................................................................................................45
Post-requisites...................................................................................................................................................................45
Chapter 31: Removing the display bezel.......................................................................................46
Prerequisites.......................................................................................................................................................................46
Procedure............................................................................................................................................................................46
Chapter 32: Replacing the display bezel...................................................................................... 47
Procedure............................................................................................................................................................................ 47
Post-requisites................................................................................................................................................................... 47
Chapter 33: Removing the display panel...................................................................................... 48
Prerequisites.......................................................................................................................................................................48
Procedure............................................................................................................................................................................48
Chapter 34: Replacing the display panel...................................................................................... 50
Procedure............................................................................................................................................................................50
Post-requisites...................................................................................................................................................................50
Chapter 35: Removing the camera............................................................................................... 51
Prerequisites....................................................................................................................................................................... 51
Procedure............................................................................................................................................................................ 51
Chapter 36: Replacing the camera...............................................................................................52
Contents 5

Procedure............................................................................................................................................................................52
Post-requisites...................................................................................................................................................................52
Chapter 37: Removing the display hinges.................................................................................... 53
Prerequisites.......................................................................................................................................................................53
Procedure............................................................................................................................................................................53
Chapter 38: Replacing the display hinges.................................................................................... 54
Procedure............................................................................................................................................................................54
Post-requisites...................................................................................................................................................................54
Chapter 39: Removing the display cable...................................................................................... 55
Prerequisites.......................................................................................................................................................................55
Procedure............................................................................................................................................................................55
Chapter 40: Replacing the display cable...................................................................................... 57
Procedure............................................................................................................................................................................57
Post-requisites................................................................................................................................................................... 57
Chapter 41: Removing the system board......................................................................................58
Prerequisites.......................................................................................................................................................................58
Procedure............................................................................................................................................................................58
Chapter 42: Replacing the system board......................................................................................61
Procedure............................................................................................................................................................................ 61
Post-requisites....................................................................................................................................................................61
Chapter 43: Removing the touch pad...........................................................................................62
Prerequisites.......................................................................................................................................................................62
Procedure............................................................................................................................................................................62
Chapter 44: Replacing the touch pad...........................................................................................64
Procedure............................................................................................................................................................................64
Post-requisites...................................................................................................................................................................64
Chapter 45: Removing the power-adapter port............................................................................65
Prerequisites.......................................................................................................................................................................65
Procedure............................................................................................................................................................................65
Chapter 46: Replacing the power-adapter port............................................................................66
Procedure............................................................................................................................................................................66
Post-requisites...................................................................................................................................................................66
Chapter 47: Removing the display back-cover and antenna assembly.......................................... 67
Prerequisites.......................................................................................................................................................................67
Procedure............................................................................................................................................................................67
Chapter 48: Replacing the display back-cover and antenna assembly.......................................... 68
6Contents

Procedure............................................................................................................................................................................68
Post-requisites...................................................................................................................................................................68
Chapter 49: Removing the palm rest........................................................................................... 69
Prerequisites.......................................................................................................................................................................69
Procedure............................................................................................................................................................................69
Chapter 50: Replacing the palm rest........................................................................................... 70
Procedure............................................................................................................................................................................70
Post-requisites................................................................................................................................................................... 70
Chapter 51: Diagnostics............................................................................................................... 71
Chapter 52: Getting help and contacting Dell.............................................................................. 73
Contents 7

Before working inside your computer
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Before you begin
1. Save and close all open files and exit all open applications.
2. Shut down your computer. Click Start > Power > Shut down.
NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down
instructions.
3. Disconnect your computer and all attached devices from their electrical outlets.
4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
5. Remove any media card and optical disc from your computer, if applicable.
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety.
NOTE: Before working inside your computer, read the safety information that shipped with your computer. For more safety
best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
NOTE: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the
computer, replace all covers, panels, and screws before connecting to the electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is flat and clean.
CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching pins
and contacts.
CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical
assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the
safety instructions that shipped with the product or at www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal
surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal
surface to dissipate static electricity, which could harm internal components.
CAUTION: When you disconnect a cable, pull on its connector or on its pull tab, not on the cable itself. Some
cables have connectors with locking tabs or thumb-screws that you must disengage before disconnecting
the cable. When disconnecting cables, keep them evenly aligned to avoid bending any connector pins. When
connecting cables, ensure that the ports and connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
Recommended tools
The procedures in this document may require the following tools:
●Phillips screwdriver
1
8 Before working inside your computer

●Plastic scribe
Screw list
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Base cover Palm-rest assembly M2.5x8 8
Base cover Palm-rest assembly M2x5 6
Base cover Palm-rest assembly M2x2 3
Display hinges Display back-cover and
antenna assembly
M2.5x2.5 6
Display panel Display-back cover and
antenna assembly
M2x3 4
Fan Palm-rest assembly M2x5 2
Hard drive Hard-drive assembly M3x3 4
Hard-drive bracket Hard-drive assembly M2x3 2
Hinges Palm-rest assembly M2.5x8 3
Optical-drive bracket Optical drive M2x3 1
Power-adapter port Palm-rest assembly M2x3 1
Power-button board Palm-rest assembly M2x2 1
System board Palm-rest assembly M2x3 1
Touch-pad board Palm-rest assembly M2x3 6
Touch-pad bracket Palm-rest assembly M2x3 1
Wireless-card bracket System board M2x3 1
Before working inside your computer 9

After working inside your computer
CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.
1. Replace all screws and ensure that no stray screws remain inside your computer.
2. Connect any external devices, peripherals, or cables you removed before working on your computer.
3. Replace any media cards, discs, or any other parts that you removed before working on your computer.
4. Connect your computer and all attached devices to their electrical outlets.
5. Turn on your computer.
2
10 After working inside your computer

Removing the battery
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1. Turn the computer over and slide the battery latch to the unlock position. You can hear a click sound when the battery is
unlocked.
2. Using your fingertips, lift the battery at an angle and remove the battery off the computer base.
3. Turn the computer over, open the display, and press the power button for five seconds to ground the system board.
3
Removing the battery 11

Replacing the battery
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
Slide the tabs on the battery into the slots on the battery bay and snap the battery into place.
4
12 Replacing the battery

Removing the optical drive
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the battery.
Procedure
1. Remove the screw (M2x5) that secures the optical-drive assembly to the base cover.
2. Using a plastic scribe, push to release the optical-drive assembly from the optical-drive bay.
3. Slide and remove the optical-drive assembly out of the optical-drive bay.
4. Remove the screw (M2x3) that secures the optical-drive bracket to the optical drive.
5. Remove the optical-drive bracket.
5
Removing the optical drive 13

6. Pull the optical-drive bezel carefully to remove it from the optical drive.
14 Removing the optical drive

Replacing the optical drive
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1. Align the tabs on the optical-drive bezel with the slots on the optical drive and snap the optical-drive bezel into place.
2. Align the screw hole on the optical-drive bracket with the screw hole on the optical drive.
3. Replace the screw (M2x3) that secures the optical-drive bracket to the optical drive.
4. Slide the optical-drive assembly into the optical-drive bay and align the screw hole on the optical-drive bracket with the
screw hole on the base cover.
5. Replace the screw (M2x5) that secures the optical-drive assembly to the base cover.
Post-requisites
Replace the battery.
6
Replacing the optical drive 15

Removing the keyboard
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the battery.
Procedure
1. Using a plastic scribe, gently release the tabs that secure the keyboard to the palm-rest assembly.
2. Slide the keyboard up to release it from the slots on the palm-rest assembly.
3. Turn the keyboard over, and place it on the palm-rest assembly.
4. Open the latch, and disconnect the keyboard cable from the system board.
5. Lift the keyboard off the palm-rest assembly.
7
16 Removing the keyboard

Removing the keyboard 17

Replacing the keyboard
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
NOTE: If you are installing a new keyboard, fold the cables the same way they are folded on the old keyboard.
1. Slide the keyboard cable into the connector and close the latch to secure the cable.
2. Turn the keyboard over.
3. Slide the tabs on the keyboard into the slots on the palm-rest assembly and snap the keyboard into place.
Post-requisites
Replace the battery.
8
18 Replacing the keyboard

Removing the base cover
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
1. Remove the battery.
2. Remove the optical drive.
3. Remove the keyboard.
Procedure
1. Close the display, and turn the computer over.
2. Remove the eight screws (M2.5x8) that secure the base cover to the palm-rest assembly.
3. Remove the two screws (M2x5) that secure the base cover to the palm-rest assembly.
4. Remove the three screws (M2x2) that secure the base cover to the palm-rest assembly.
5. Turn the computer over, and open the display.
6. Remove the three screws (M2x5) that secure the base cover to the palm-rest assembly.
7. Open the latch, and disconnect the optical-drive cable from the system board.
9
Removing the base cover 19

8. Close the display, and turn the computer over.
9. Using a plastic scribe, pry the base cover off the palm-rest assembly.
10. Lift the base cover off the palm-rest assembly.
11. Release the optical-drive interposer from the tabs, and remove it from the base cover.
20 Removing the base cover