Dell Inspiron 20 3052 User Manual
Inspiron 20
3000 Series
Service Manual
Regulatory Model: W15B
Regulatory Type: W15B002
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use
of your computer.
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.
Copyright
international copyright and intellectual property laws. Dell™ and the Dell logo are trademarks
of Dell Inc. in the United States and/or other jurisdictions. All other marks and names
mentioned herein may be trademarks of their respective companies.
© 2016 Dell Inc. All rights reserved. This product is protected by U.S. and
2016 - 03
Rev. A00
Contents
1 Before working inside your computer......................................... 8
Before you begin .............................................................................8
Safety instructions............................................................................9
Recommended tools.....................................................................10
2 After working inside your computer.......................................... 11
3 Technical overview........................................................................12
Inside view of your computer......................................................13
System-board components.........................................................14
4 Removing the stand...................................................................... 16
Procedure........................................................................................ 16
5 Replacing the stand.......................................................................18
Procedure........................................................................................ 18
6 Removing the back cover.............................................................19
Prerequisites....................................................................................19
Procedure........................................................................................ 19
7 Replacing the back cover............................................................. 21
Procedure........................................................................................ 21
Post-requisites................................................................................ 21
8 Removing the battery................................................................... 22
Prerequisites....................................................................................22
Procedure........................................................................................22
9 Replacing the battery....................................................................25
Procedure........................................................................................ 25
3000 Series
3
Post-requisites................................................................................25
10 Removing the hard drive............................................................26
Prerequisites....................................................................................26
Procedure........................................................................................26
11 Replacing the hard drive............................................................ 29
Procedure........................................................................................29
Post-requisites................................................................................29
12 Removing the memory module.................................................31
Prerequisites.................................................................................... 31
Procedure........................................................................................ 31
13 Replacing the memory module.................................................33
Procedure........................................................................................33
Post-requisites................................................................................34
14 Removing the system-board shield......................................... 35
Prerequisites....................................................................................35
Procedure........................................................................................ 35
15 Replacing the system-board shield..........................................37
Procedure........................................................................................ 37
Post-requisites................................................................................37
16 Removing the wireless card...................................................... 38
Prerequisites....................................................................................38
Procedure........................................................................................38
17 Replacing the wireless card.......................................................40
Procedure........................................................................................40
Post-requisites................................................................................41
3000 Series
4
18 Removing the control-buttons board.....................................42
Prerequisites....................................................................................42
Procedure........................................................................................42
19 Replacing the control-buttons board..................................... 44
Procedure........................................................................................44
Post-requisites............................................................................... 44
20 Removing the microphone....................................................... 45
Prerequisites....................................................................................45
Procedure........................................................................................45
21 Replacing the microphone........................................................ 47
Procedure........................................................................................ 47
Post-requisites................................................................................47
22 Removing the camera................................................................ 48
Prerequisites................................................................................... 48
Procedure........................................................................................48
23 Replacing the camera................................................................. 51
Procedure........................................................................................ 51
Post-requisites................................................................................ 51
24 Removing the coin-cell battery................................................52
Prerequisites....................................................................................52
Procedure........................................................................................ 52
25 Replacing the coin-cell battery................................................ 54
Procedure........................................................................................54
Post-requisites................................................................................54
26 Removing the heat sink..............................................................55
3000 Series
5
Prerequisites....................................................................................55
Procedure........................................................................................ 55
27 Replacing the heat sink.............................................................. 57
Procedure........................................................................................ 57
Post-requisites................................................................................57
28 Removing the speakers..............................................................58
Prerequisites....................................................................................58
Procedure........................................................................................58
29 Replacing the speakers.............................................................. 60
Procedure........................................................................................60
Post-requisites............................................................................... 60
30 Removing the system board......................................................61
Prerequisites....................................................................................61
Procedure........................................................................................62
31 Replacing the system board...................................................... 64
Procedure........................................................................................64
Post-requisites................................................................................65
32 Removing the display cable...................................................... 66
Prerequisites................................................................................... 66
Procedure........................................................................................66
33 Replacing the display cable.......................................................68
Procedure........................................................................................68
Post-requisites............................................................................... 68
34 Removing the display assembly............................................... 69
Prerequisites................................................................................... 69
Procedure........................................................................................70
3000 Series
6
35 Replacing the display assembly................................................ 73
Procedure........................................................................................ 73
Post-requisites................................................................................73
36 Removing the rubber feet..........................................................75
Prerequisites....................................................................................75
Procedure........................................................................................ 75
37 Replacing the rubber feet...........................................................77
Procedure........................................................................................ 77
Post-requisites................................................................................ 77
38 BIOS setup program....................................................................78
Overview..........................................................................................78
Entering BIOS setup program..................................................... 78
Clearing forgotten passwords.....................................................79
Prerequisites..............................................................................79
Procedure.................................................................................. 79
Post-requisites..........................................................................80
Clearing CMOS settings............................................................... 80
Prerequisites............................................................................. 80
Procedure..................................................................................80
Post-requisites.......................................................................... 81
39 Flashing the BIOS........................................................................ 82
3000 Series
7
Before working inside your
computer
NOTE: The images in this document may differ from your computer depending
on the configuration you ordered.
Topics:
• Before you begin
• Safety instructions
• Recommended tools
Before you begin
1 Save and close all open files and exit all open applications.
2 Shut down your computer.
• Windows 10: Click or tap Start > Power > Shut down.
• Windows 8.1: On the Start screen, click or tap the power icon > Shut
down.
• Windows 7: Click or tap Start > Shut down.
1
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 cables such as telephone cables, network cables, and so on,
from your computer.
5 Disconnect all attached devices and peripherals, such as keyboard, mouse,
monitor, and so on, from your computer.
6 Remove any media card and optical disc from your computer, if applicable.
7 After the computer is unplugged, press and hold the power button for 5
seconds to ground the system board.
Before working inside your computer 8
CAUTION: Place the computer on a flat, soft, and clean surface to avoid
scratches on the display.
8 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.
WARNING: 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.
Before working inside your computer 9
Recommended tools
The procedures in this document may require the following tools:
• Phillips screwdriver
• Plastic scribe
Before working inside your computer 10
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
After working inside your computer 11
Technical overview
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.
Topics:
• Inside view of your computer
• System-board components
3
Technical overview 12
Inside view of your computer
1 speakers (2) 2 hard-drive assembly
3 control-buttons board 4 battery assembly
5 display assembly 6 display-assembly base
7 system board 8 heat sink
9 wireless card 10 memory module
11 coin-cell battery
Technical overview 13
System-board components
1 wireless-card slot (NGFF_WIFI) 2 memory-module slot (DIMM1)
3 camera-cable connector (WEBCAM) 4 CMOS clear jumper (CMCL R2)
5 Password clear jumper (PSWD) 6 speaker-cable connector
(SPEAKER)
Technical overview 14
7 coin-cell battery 8 touch-screen board cable
9 control-buttons board cable
connector
11 battery-cable connector 12 display-cable connector
13 hard-drive data cable connector
(SATA_HDD)
connector (TOUCH)
10 display-panel power cable
connector (PWRCN)
14 hard-drive power cable connector
(SATAP1)
Technical overview 15
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.
Procedure
1 Using a plastic scribe, pry the stand cover off the back cover.
2 Slide and remove the stand cover from the back cover.
4
1 stand cover 2 back cover
3 plastic scribe
Removing the stand 16
3 Close the stand and remove the screws that secure the stand to the back
cover.
4 Slide and remove the stand from the back cover.
1 screws (2) 2 stand
Removing the stand 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.
Procedure
1 Insert the tabs on the stand bracket into the slots on the back cover.
2 Align the screw holes on the stand with the screw holes on the back cover.
3 Replace the screws that secure the stand to the back cover.
4 Replace the stand cover.
5
Replacing the stand 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.
Topics:
• Prerequisites
• Procedure
Prerequisites
Remove the stand.
Procedure
6
CAUTION
replace internal components on your computer.
1 Starting from the stand assembly bay, pry off the back cover.
2 Lift the back cover off the computer.
: Do not remove the computer cover unless you need to install or
Removing the back cover 19
1 back cover
Removing the back cover 20
Replacing 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.
Topics:
• Procedure
• Post-requisites
Procedure
Align the tabs on the back cover with the slots on the display bezel and snap the
back cover into place.
NOTE
: Make sure that no cables are caught between the back cover and the
display bezel.
7
Post-requisites
Replace the stand.
Replacing the back cover 21
Removing the battery
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.
Topics:
• Prerequisites
• Procedure
Prerequisites
1 Remove the stand.
2 Remove the back cover.
Procedure
8
1 Disconnect the battery cable from the battery assembly.
2 Remove the screws that secure the battery assembly to the display-assembly
base.
3 Slide and lift the battery assembly off the display-assembly base.
Removing the battery 22
1 battery cable 2 screws (4)
3 battery assembly
4 Remove the battery from the battery bracket.
Removing the battery 23
1 battery 2 battery bracket
5 Turn the computer over.
6 Press and hold the power button for 5 seconds, to ground the system board.
Removing the battery 24
Replacing the battery
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.
Topics:
• Procedure
• Post-requisites
Procedure
1 Align the battery with the battery bracket and snap it in place.
2 Align the screw holes on the battery assembly with the screw holes on the
display-assembly base.
3 Replace the screws that secure the battery assembly to the display-assembly
base.
4 Connect the battery cable to the battery assembly.
9
Post-requisites
1 Replace the back cover.
2 Replace the stand.
Replacing the battery 25
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