Dell 24-3475 User manual

Inspiron 24 3000 All-in-One
Service Manual
Computer Model: Inspiron 24-3475
Regulatory Model: W21C
Regulatory Type: W21C002

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 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.
2018 - 01
Rev. A00

Contents
Before working inside your computer........................... 10
Before you begin .....................................................................................10
Safety instructions...................................................................................10
Recommended tools................................................................................. 11
Screw list................................................................................................. 12
After working inside your computer.............................. 14
Removing the stand......................................................15
Easel Stand..............................................................................................15
Pedestal stand......................................................................................... 16
Replacing the stand......................................................18
Easel stand...............................................................................................18
Pedestal stand......................................................................................... 18
Removing the back cover............................................. 19
Prerequisite..............................................................................................19
Procedure............................................................................................... 20
Replacing the back cover............................................. 21
Procedure................................................................................................ 21
Post-requisite...........................................................................................21
Removing the hard drive.............................................. 22
Prerequisites............................................................................................22
Procedure................................................................................................22
3

Replacing the hard drive.............................................. 24
Procedure................................................................................................24
Post-requisites........................................................................................ 24
Removing the system-board shield.............................. 25
Prerequisites........................................................................................... 25
Procedure............................................................................................... 25
Replacing the system-board shield...............................27
Procedure................................................................................................27
Post-requisites.........................................................................................27
Removing the memory module.....................................28
Prerequisites............................................................................................28
Procedure............................................................................................... 29
Replacing the memory module.....................................30
Procedure............................................................................................... 30
Post-requisites........................................................................................ 30
Removing the wireless card.......................................... 31
Prerequisites............................................................................................ 31
Procedure................................................................................................ 31
Replacing the wireless card..........................................34
Procedure................................................................................................34
Post-requisites........................................................................................ 35
Removing the antenna................................................. 36
Prerequisites........................................................................................... 36
Procedure............................................................................................... 36
4

Replacing the antenna................................................. 38
Procedure............................................................................................... 38
Post-requisites........................................................................................ 38
Removing the media-card reader................................. 39
Prerequisites........................................................................................... 39
Procedure............................................................................................... 39
Replacing the media-card reader..................................41
Procedure................................................................................................ 41
Post-requisites......................................................................................... 41
Removing the power-button board...............................42
Prerequisites............................................................................................42
Procedure................................................................................................42
Replacing the power-button board...............................44
Procedure................................................................................................44
Post-requisites........................................................................................ 44
Removing the microphone........................................... 45
Prerequisites........................................................................................... 45
Procedure............................................................................................... 45
Replacing the microphone............................................47
Procedure................................................................................................47
Post-requisites........................................................................................ 47
Removing the camera.................................................. 48
Prerequisites............................................................................................48
Procedure............................................................................................... 48
5

Replacing the camera................................................... 51
Procedure................................................................................................ 51
Post-requisites......................................................................................... 51
Removing the coin-cell battery.................................... 52
Prerequisites........................................................................................... 52
Procedure............................................................................................... 53
Replacing the coin-cell battery.................................... 54
Procedure............................................................................................... 54
Post-requisites........................................................................................ 54
Removing the fan........................................................ 55
Prerequisites........................................................................................... 55
Procedure............................................................................................... 55
Replacing the fan......................................................... 57
Procedure................................................................................................57
Post-requisites........................................................................................ 57
Removing the heat sink................................................58
Prerequisites........................................................................................... 58
Procedure............................................................................................... 58
Replacing the heat sink................................................60
Procedure............................................................................................... 60
Post-requisites........................................................................................ 60
Removing the speakers................................................ 61
Prerequisites............................................................................................ 61
Procedure................................................................................................ 61
6

Replacing the speakers................................................ 63
Procedure............................................................................................... 63
Post-requisites........................................................................................ 63
Removing the system board.........................................64
Prerequisites........................................................................................... 64
Procedure............................................................................................... 64
Replacing the system board......................................... 67
Procedure................................................................................................67
Post-requisites........................................................................................ 68
Flashing the BIOS....................................................................................68
Removing the display panel..........................................69
Prerequisites........................................................................................... 69
Procedure............................................................................................... 69
Replacing the display panel.......................................... 73
Procedure................................................................................................73
Post-requisites.........................................................................................77
Removing the rubber feet............................................ 78
Prerequisites............................................................................................78
Procedure................................................................................................78
Replacing the rubber feet............................................ 80
Procedure............................................................................................... 80
Post-requisites........................................................................................ 80
Removing the middle frame.......................................... 81
Prerequisites............................................................................................ 81
Procedure................................................................................................82
7

Replacing the middle frame......................................... 85
Procedure............................................................................................... 85
Post-requisites........................................................................................ 85
Downloading drivers.....................................................87
Downloading the audio driver.................................................................. 87
Downloading the graphics driver............................................................. 88
Downloading the USB driver................................................................... 88
Downloading the chipset driver...............................................................89
Downloading the network driver............................................................. 90
System setup...............................................................92
Boot Sequence........................................................................................92
Navigation keys....................................................................................... 92
BIOS overview........................................................................................ 93
Entering BIOS setup program..................................................................93
System Setup Options............................................................................ 94
Flashing the BIOS................................................................................... 99
Troubleshooting.......................................................... 101
Flashing the BIOS...................................................................................101
Reinstall Windows using a USB recovery drive....................................... 101
Enhanced Pre-Boot System Assessment (ePSA) diagnostics................102
Running the ePSA diagnostics.........................................................103
Display built-in self test.......................................................................... 103
Diagnostics............................................................................................ 103
Flea power release.................................................................................105
Wi-Fi power cycle..................................................................................105
8

Getting help and contacting Dell................................ 106
Self-help resources................................................................................ 106
Contacting Dell...................................................................................... 107
9

Before working inside your
computer
NOTE: The images in this document may dier from your computer
depending on the conguration you ordered.
Before you begin
1 Save and close all open les and exit all open applications.
2 Shut down your computer. Click Start → Power → Shut down.
NOTE: If you are using a dierent 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.
6 After the computer is unplugged, press and hold the power button for 5 seconds
to ground the system board.
CAUTION: Place the computer on a at, soft, and clean surface to
avoid scratches on the display.
7 Place the computer face down.
Safety instructions
Use the following safety guidelines to protect your computer from potential damage
and ensure your personal safety.
WARNING: 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.
10

WARNING: Disconnect all power sources before opening the computer
cover or panels. After you nish 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
at 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
• Plastic scribe
11

Screw list
The following table provides the list of screws that are used for securing dierent
components to the computer.
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Stand System-board
shield
M3x5 4
Hard-drive
bracket
Display-
assembly base
M3x5 1
Hard-drive
bracket
Hard drive M3x3.5 4
System-board
shield
Display-
assembly base
M3x5 5
Media-card
reader cover
Display-
assembly base
M3x5 1
Media-card
reader
Display-
assembly base
M3x5 1
Power-button
board
Display-
assembly base
M3x5 1
Microphone Display-
assembly base
M2x2.5 1
Speakers Display-
assembly base
M3 4+7.1 XZN 4
Fan Display-
assembly base
M2x2.5 3
12

Component Secured to Screw type Quantity Screw image
Retractable-
camera
assembly
Display-
assembly base
M3x5 2
System board Display-
assembly base
M3x5 5
Wireless-card
shield
System board M2x2.5 2
Wireless card System board M2x2.5 1
Display panel Display-
assembly base
M3x5 8
Middle frame Display-
assembly base
M3x5 black 13
Rubber feet Display-
assembly base
M3x5 black 4
13

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.
14

Removing the stand
WARNING: 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.
Easel Stand
1 CAUTION: Place the computer on a at, soft, and clean surface to
avoid scratches on the display.
Place the computer on a clean and at surface.
2 Using your ngertips, pry the stand cover o the back cover.
3 Remove the four screws (M3x5) that secure the stand to the system-board
shield.
15

4 Lift and slide the stand from the system-board shield.
Pedestal stand
1 CAUTION: Place the computer on a at, soft, and clean surface to
avoid scratches on the display.
Place the computer on a clean and at surface.
2 Extend the stand upward.
16

3 Using your ngertips, pry the stand cover o the back cover.
4 Remove the four screws (M3x5) that secure the stand bracket to the system-
board shield.
5 Lift the handle, and slide it out from the system-board shield.
17

Replacing the stand
WARNING: 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.
Easel stand
1 Insert the tabs on the stand bracket into the slots on the system-board shield.
2 Align the screw holes on the stand with the screw holes on the system-board
shield.
3 Replace the four screws (M3x5) that secure the stand to the system-board
shield.
4 Replace the stand cover.
5 Place the computer in its upright position.
Pedestal stand
1 Insert the tabs on the stand bracket into the slots on the system-board shield.
2 Align the screw holes on the stand with the screw holes on the system-board
shield.
3 Replace the four screws (M3x5) that secure the stand bracket to the system-
board shield.
4 Replace the stand cover.
5 Place the computer in its upright position.
18

Removing the back cover
WARNING: 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.
Prerequisite
Remove the stand.
19

Procedure
CAUTION: Do not remove the computer cover unless you must install or
replace internal components on your computer.
Use one hand to stabilize your computer, and use another hand to pull the back
cover from the center to lift it o the display assembly base.
20