Dell Inspiron 7547 User manual

Inspiron 15
7000 Series
Service Manual
Computer Model: Inspiron 7547
Regulatory Model: P41F
Regulatory Type: P41F001

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.
Copyright ©2017 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.
2017 - 09
Rev. A01

Contents
Before working inside your computer.............................8
Before you begin ...................................................................................... 8
Safety instructions.................................................................................... 8
Recommended tools..................................................................................9
After working inside your computer..............................10
Removing the base cover.............................................. 11
Procedure................................................................................................. 11
Replacing the base cover..............................................13
Procedure................................................................................................ 13
Removing the battery...................................................14
Prerequisites............................................................................................ 14
Procedure................................................................................................ 14
Replacing the battery................................................... 16
Procedure................................................................................................ 16
Post-requisites......................................................................................... 16
Removing the hard drive...............................................17
Prerequisites............................................................................................ 17
Procedure................................................................................................ 17
Replacing the hard drive...............................................19
Procedure................................................................................................ 19
Post-requisites......................................................................................... 19
3

Removing the memory modules...................................20
Prerequisites........................................................................................... 20
Procedure............................................................................................... 20
Replacing the memory modules................................... 22
Procedure................................................................................................22
Post-requisites........................................................................................ 23
Removing the wireless card..........................................24
Prerequisites............................................................................................24
Procedure................................................................................................24
Replacing the wireless card..........................................26
Procedure............................................................................................... 26
Post-requisites.........................................................................................27
Removing the coin-cell battery.................................... 28
Prerequisites............................................................................................28
Procedure................................................................................................28
Replacing the coin-cell battery.................................... 30
Procedure............................................................................................... 30
Post-requisites........................................................................................ 30
Removing the power-adapter port................................31
Prerequisites............................................................................................ 31
Procedure................................................................................................ 31
Replacing the power-adapter port............................... 33
Procedure................................................................................................33
Post-requisites........................................................................................ 33
4

Removing the power-status light board....................... 34
Prerequisites............................................................................................34
Procedure................................................................................................34
Replacing the power-status light board........................36
Procedure............................................................................................... 36
Post-requisites........................................................................................ 36
Removing the processor fan.........................................37
Prerequisites............................................................................................37
Procedure................................................................................................37
Replacing the processor fan.........................................40
Procedure............................................................................................... 40
Post-requisites........................................................................................ 40
Removing the video-card fan........................................41
Prerequisites............................................................................................ 41
Procedure................................................................................................ 41
Replacing the video-card fan....................................... 44
Procedure................................................................................................44
Post-requisites........................................................................................ 44
Removing the heat sink................................................45
Prerequisites........................................................................................... 45
Procedure............................................................................................... 46
Replacing the heat sink................................................48
Procedure............................................................................................... 48
Post-requisites........................................................................................ 48
5

Removing the speakers................................................49
Prerequisites........................................................................................... 49
Procedure............................................................................................... 49
Replacing the speakers.................................................51
Procedure................................................................................................ 51
Post-requisites......................................................................................... 51
Removing the display assembly....................................52
Prerequisites........................................................................................... 52
Procedure............................................................................................... 52
Replacing the display assembly....................................55
Procedure............................................................................................... 55
Post-requisites........................................................................................ 55
Removing the system board.........................................56
Prerequisites........................................................................................... 56
Procedure................................................................................................57
Replacing the system board.........................................59
Procedure............................................................................................... 59
Post-requisites........................................................................................ 59
Removing the palm rest and keyboard assembly.......... 60
Procedure............................................................................................... 60
Procedure............................................................................................... 60
Replacing the palm rest and keyboard assembly.......... 63
Procedure............................................................................................... 63
Post-requisites........................................................................................ 63
6

Flashing the BIOS........................................................ 64
7

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.
The shut-down instruction varies depending on the operating system installed on
your computer.
– Windows 10: Click Start → Power → Shut down.
– Windows 8.1: On the Start screen, Click the power icon → Shut down.
– Windows 7: Click Start → 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.
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.
8

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
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.
10

Removing the base 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.
Procedure
1 Close the display and turn the computer over.
2 Loosen the captive screws that secure the base cover to the palm-rest
assembly.
3 Remove the screws that secure the base cover to the palm-rest assembly.
4 Using a plastic scribe, pry the base cover from the palm-rest assembly.
11

5 Lift the base cover o the computer.
1 screws (6) 2 base cover
3 captive screws (4) 4 plastic scribe
12

Replacing the base 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.
Procedure
1 Align the tabs on the base cover with the slots on the palm-rest assembly and
snap the base cover into place.
2 Replace the screws that secure the base cover to the palm-rest assembly.
3 Tighten the captive screws that secure the base cover to the palm-rest
assembly.
13

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.
Prerequisites
Remove the base cover.
Procedure
1 Remove the screws that secure the battery to the palm-rest assembly.
2 Turn the battery over.
1 screws (5) 2 battery
14

3 Disconnect the battery cable from the battery.
1 battery cable 2 battery
4 Turn the computer over, open the display, and press the power button for ve
seconds to ground the system board.
15

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.
Procedure
1 Connect the battery cable to the battery.
2 Turn the battery over and align the screw holes on the battery with the screw
holes on the palm-rest assembly.
3 Replace the screws that secure the battery to the palm-rest assembly.
Post-requisites
Replace the base cover.
16

Removing the hard drive
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.
CAUTION: Hard drives are fragile. Exercise care when handling the hard
drive.
CAUTION: To avoid data loss, do not remove the hard drive while the
computer is in sleep or on state.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Remove the screws that secure the hard-drive assembly to the palm-rest
assembly.
17

2 Slide and lift the hard-drive assembly o the palm-rest assembly.
1 screws (4) 2 hard-drive assembly
3 Remove the screws that secure the hard-drive bracket to the hard-drive.
4 Lift the hard-drive bracket o the hard drive.
1 hard-drive bracket 2 screws (4)
3 hard drive
18

Replacing the hard drive
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.
CAUTION: Hard drives are fragile. Exercise care when handling the hard
drive.
Procedure
1 Align the screw holes on the hard-drive bracket with the screw holes on the hard
drive.
2 Replace the screws that secure the hard-drive bracket to the hard-drive.
3 Slide the hard-drive assembly into the slot on the palm-rest assembly.
4 Replace the screws that secure the hard-drive assembly to the palm-rest
assembly.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
19

Removing the memory modules
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.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Peel o the mylar tape from the memory modules.
1 mylar tape
20