Dell Inspiron 15 7548 User Manual
Inspiron 15
7000 Series
Service Manual
Computer Model: Inspiron 7548
Regulatory Model: P41F
Regulatory Type: P41F001
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 © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and
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.
2014 - 11
Rev. A00
Contents
Before Working Inside Your Computer................................... 7
Before You Begin .............................................................................................. 7
Safety Instructions..............................................................................................7
Recommended Tools........................................................................................ 8
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
Removing the Memory Module(s)..........................................20
Prerequisites.................................................................................................... 20
Procedure........................................................................................................ 20
Replacing the Memory Module(s).......................................... 22
Procedure.........................................................................................................22
Post-requisites................................................................................................. 23
Removing the Wireless Card...................................................24
Prerequisites.....................................................................................................24
Procedure........................................................................................................ 24
Replacing the Wireless Card................................................... 26
Procedure........................................................................................................ 26
Post-requisites.................................................................................................26
Removing the Coin-Cell Battery.............................................27
Prerequisites.....................................................................................................27
Procedure.........................................................................................................27
Replacing the Coin-Cell Battery.............................................29
Procedure........................................................................................................ 29
Post-requisites.................................................................................................29
Removing the Power-Adapter Port....................................... 30
Prerequisites.................................................................................................... 30
Procedure........................................................................................................ 30
Replacing the Power-Adapter Port........................................32
Procedure.........................................................................................................32
Post-requisites................................................................................................. 32
Removing the Power-Status Light Board............................. 33
Prerequisites.....................................................................................................33
Procedure.........................................................................................................33
Replacing the Power-Status Light Board..............................35
Procedure.........................................................................................................35
Post-requisites................................................................................................. 35
Removing the Processor Fan.................................................. 36
Prerequisites.....................................................................................................36
Procedure........................................................................................................ 36
Replacing the Processor Fan...................................................38
Procedure........................................................................................................ 38
Post-requisites.................................................................................................38
Removing the Video-Card Fan................................................39
Prerequisites.....................................................................................................39
Procedure........................................................................................................ 39
Replacing the Video-Card Fan................................................42
Procedure........................................................................................................ 42
Post-requisites.................................................................................................42
Removing the Heat Sink...........................................................43
Prerequisites.....................................................................................................43
Procedure........................................................................................................ 44
Replacing the Heat Sink...........................................................45
Procedure........................................................................................................ 45
Post-requisites.................................................................................................45
Removing the Speakers............................................................46
Prerequisites.................................................................................................... 46
Procedure........................................................................................................ 46
Replacing the Speakers............................................................48
Procedure........................................................................................................ 48
Post-requisites.................................................................................................48
Removing the Display Assembly............................................ 49
Prerequisites.................................................................................................... 49
Procedure........................................................................................................ 49
Replacing the Display Assembly............................................. 52
Procedure.........................................................................................................52
Post-requisites................................................................................................. 52
Removing the System Board................................................... 53
Prerequisites.....................................................................................................53
Procedure........................................................................................................ 54
Replacing the System Board................................................... 56
Procedure........................................................................................................ 56
Post-requisites.................................................................................................56
Removing the Palm Rest and Keyboard................................ 57
Procedure.........................................................................................................57
Procedure.........................................................................................................57
Replacing the Palm Rest and Keyboard................................60
Procedure........................................................................................................ 60
Post-requisites.................................................................................................60
Flashing the BIOS.......................................................................61
Before Working Inside Your Computer
CAUTION: To avoid damaging the components and cards, handle
them by their edges and avoid touching pins and contacts.
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.
– Windows 8.1: On the Start screen, click or tap the power icon →
Shut down.
– Windows 7: Click or tap Start → 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 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.
Safety Instructions
Use the following safety guidelines to protect your computer from potential
damage and ensure your personal safety.
7
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 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 power source.
CAUTION: To avoid damaging the computer, make sure 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 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, make sure that the ports and connectors are correctly oriented
and aligned.
CAUTION: To disconnect a network cable, first unplug the cable from
your computer and then unplug the cable from the network device.
CAUTION: Press and eject any installed card from the media-card
reader.
Recommended Tools
The procedures in this document may require the following tools:
8
• Philips screwdriver
• 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 make sure that no stray screws remain inside your
computer.
2 Connect any external devices, peripherals, and cables you removed
before working on your computer.
3 Replace any media cards, discs, and any other part(s) 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 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 off 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 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 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.
14
1 screws (5) 2 battery
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 five 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 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 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 off 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 off the hard drive.
18
1 hard-drive bracket 2 screws (4)
3 hard drive
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 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.
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