Dell XPS 27 7760 User Manual
XPS 27
Service Manual
Computer Model: XPS 7760
Regulatory Model: W13C
Regulatory Type: W13C001
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 - 07
Rev. A02
Contents
Before working inside your computer........................... 12
Before you begin .....................................................................................12
Safety instructions...................................................................................12
Recommended tools................................................................................ 13
Screw list................................................................................................. 14
After working inside your computer..............................16
Technical overview........................................................17
Inside view of your computer (touch screen)........................................... 17
Inside view of your computer (non-touch screen)....................................19
System Board Components ....................................................................20
Removing the USB dongle-bay cover...........................22
Procedure................................................................................................22
Replacing the USB dongle-bay cover...........................23
Procedure................................................................................................23
Removing the back cover.............................................24
Prerequisites............................................................................................24
Procedure (touch screen)....................................................................... 24
Procedure (non-touch screen)................................................................26
Replacing the back cover.............................................28
Procedure................................................................................................28
Post-requisites........................................................................................ 28
3
Removing the memory modules...................................29
Prerequisites........................................................................................... 29
Procedure............................................................................................... 29
Replacing the memory modules....................................31
Procedure................................................................................................ 31
Post-requisites......................................................................................... 31
Removing the hard drive.............................................. 32
Prerequisites............................................................................................32
Procedure................................................................................................32
Replacing the hard drive.............................................. 35
Procedure............................................................................................... 35
Post-requisites........................................................................................ 35
Removing the system-board shield.............................. 36
Prerequisites........................................................................................... 36
Procedure............................................................................................... 36
Replacing the system-board shield.............................. 38
Procedure............................................................................................... 38
Post-requisites........................................................................................ 38
Removing the memory fan...........................................39
Prerequisites........................................................................................... 39
Procedure............................................................................................... 39
Replacing the memory fan............................................41
Procedure................................................................................................ 41
Post-requisites......................................................................................... 41
4
Removing the processor heat-sink...............................42
Prerequisites............................................................................................42
Procedure for computers with integrated graphics..................................42
Procedure for computers with discrete graphics..................................... 43
Replacing the processor heat-sink............................... 45
Procedure............................................................................................... 45
Post-requisites........................................................................................ 45
Removing the processor.............................................. 46
Prerequisites........................................................................................... 46
Procedure............................................................................................... 46
Replacing the processor.............................................. 48
Procedure............................................................................................... 48
Post-requisites........................................................................................ 49
Removing the coin-cell battery.................................... 50
Prerequisites........................................................................................... 50
Procedure................................................................................................ 51
Replacing the coin-cell battery.................................... 52
Procedure............................................................................................... 52
Post-requisites........................................................................................ 52
Removing the solid-state drive.................................... 53
Prerequisites........................................................................................... 53
Procedure............................................................................................... 53
Replacing the solid-state drive.....................................55
Procedure............................................................................................... 55
Post-requisites........................................................................................ 55
5
Removing the wireless card......................................... 56
Prerequisites........................................................................................... 56
Procedure............................................................................................... 56
Replacing the wireless card..........................................58
Procedure............................................................................................... 58
Post-requisites........................................................................................ 59
Removing the stand.....................................................60
Prerequisites........................................................................................... 60
Procedure............................................................................................... 60
Replacing the stand..................................................... 62
Procedure............................................................................................... 62
Post-requisites........................................................................................ 62
Removing the chassis fan............................................ 63
Prerequisites........................................................................................... 63
Procedure............................................................................................... 63
Replacing the chassis fan.............................................66
Procedure............................................................................................... 66
Post-requisites........................................................................................ 66
Removing the power-supply unit..................................67
Prerequisites............................................................................................67
Procedure................................................................................................67
Replacing the power-supply unit.................................. 70
Procedure................................................................................................70
Post-requisites........................................................................................ 70
6
Removing the inner frame............................................ 71
Prerequisites............................................................................................ 71
Procedure................................................................................................72
Replacing the inner frame............................................ 74
Procedure................................................................................................74
Post-requisites.........................................................................................74
Removing the display built-in self test button board.....75
Prerequisites............................................................................................75
Procedure................................................................................................75
Replacing the display built-in self test button board.....77
Procedure................................................................................................77
Post-requisites.........................................................................................77
Removing the microphones..........................................78
Prerequisites............................................................................................78
Procedure................................................................................................78
Replacing the microphones..........................................80
Procedure............................................................................................... 80
Post-requisites........................................................................................ 80
Removing the I/O panel................................................81
Prerequisites............................................................................................ 81
Procedure................................................................................................ 81
Replacing the I/O panel............................................... 83
Procedure............................................................................................... 83
Post-requisites........................................................................................ 83
7
Removing the USB-dongle port................................... 84
Prerequisites............................................................................................84
Procedure............................................................................................... 85
Replacing the USB-dongle port....................................87
Procedure................................................................................................87
Post-requisites.........................................................................................87
Removing the diagnostic light and button board.......... 88
Prerequisites........................................................................................... 88
Procedure............................................................................................... 89
Replacing the diagnostic light and button board.......... 92
Procedure............................................................................................... 92
Post-requisites........................................................................................ 92
Removing the hard-drive cage..................................... 93
Prerequisites............................................................................................93
Procedure............................................................................................... 93
Replacing the hard-drive cage..................................... 96
Procedure............................................................................................... 96
Post-requisites........................................................................................ 96
Removing the converter board.....................................97
Prerequisites............................................................................................97
Procedure................................................................................................97
Replacing the converter board................................... 100
Procedure..............................................................................................100
Post-requisites.......................................................................................100
8
Removing the speakers...............................................101
Prerequisites...........................................................................................101
Procedure ..............................................................................................101
Replacing the speakers...............................................103
Procedure .............................................................................................103
Post-requisites.......................................................................................103
Removing the power-button board.............................104
Prerequisites.......................................................................................... 104
Procedure..............................................................................................104
Replacing the power-button board............................. 106
Procedure..............................................................................................106
Post-requisites.......................................................................................106
Removing the media-card reader................................107
Prerequisites.......................................................................................... 107
Procedure..............................................................................................107
Replacing the media-card reader................................109
Procedure..............................................................................................109
Post-requisites.......................................................................................109
Removing the camera................................................. 110
Prerequisites...........................................................................................110
Procedure...............................................................................................110
Replacing the camera..................................................112
Procedure...............................................................................................112
Post-requisites........................................................................................112
9
Removing the system board........................................ 113
Prerequisites...........................................................................................113
Procedure...............................................................................................114
Replacing the system board........................................ 117
Procedure...............................................................................................117
Post-requisites........................................................................................117
Removing the display assembly...................................119
Prerequisites...........................................................................................119
Procedure..............................................................................................120
Replacing the display assembly................................... 121
Procedure...............................................................................................121
Post-requisites........................................................................................121
Removing the middle frame........................................123
Prerequisites.......................................................................................... 123
Procedure..............................................................................................124
Replacing the middle frame........................................ 126
Procedure..............................................................................................126
Post-requisites.......................................................................................126
Removing the speaker bezel....................................... 128
Prerequisites.......................................................................................... 128
Procedure..............................................................................................129
Replacing the speaker bezel....................................... 130
Procedure..............................................................................................130
Post-requisites.......................................................................................130
10
Removing the display panel........................................ 132
Prerequisites.......................................................................................... 132
Procedure..............................................................................................133
Replacing the display panel.........................................134
Procedure..............................................................................................134
Post-requisites....................................................................................... 137
BIOS setup program................................................... 139
BIOS overview.......................................................................................139
Entering the BIOS setup program.......................................................... 139
Clearing forgotten passwords................................................................ 139
Prerequisites.................................................................................... 140
Procedure........................................................................................140
Post-requisites..................................................................................141
Clearing CMOS settings......................................................................... 141
Prerequisites.....................................................................................141
Procedure.........................................................................................141
Post-requisites.................................................................................142
Flashing the BIOS.......................................................143
System diagnostic lights.............................................144
Getting help and contacting Dell.................................146
Self-help resources................................................................................ 146
Contacting Dell...................................................................................... 146
11
Before working inside your computer
NOTE: The images in this document may dier from your computer
depending on the conguration 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 dierent 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.
12
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 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
• Plastic scribe
13
Screw list
Table 1. : Screw list
Component Secured to Screw
Back-light cable System board M3X4 1
Camera Middle frame M2X3 2
Chassis fan System board M2X3 4
Converter board Middle frame M3X4 3
Display Built-in
Self Test button
Hard-drive cage Middle frame M3X4 4
Hard-drive
interposer
I/O panel Middle frame M3X4 4
I/O board I/O-board panel M3X4 1
Middle frame M2X3 2
Hard-drive cage M2X3 4
type
QuantityScrew image
Inner frame
(touch screen)
Inner frame
(non-touch
screen)
Memory fan Middle frame M3X4 4
14
Middle frame M3X4 14
Middle frame M3X4 20
Component Secured to Screw
Media-card
reader shield
Middle frame Display M2X4 7
Middle frame Display M2X3 6
Middle frame M2X3 2
type
QuantityScrew image
Power-supply
unit
Power-button
board shield
Processor heatsink
Stand Middle frame M4X6 6
System-board
shield
System board Middle frame M3X4 12
Speakers Middle frame M3X4 8
USB dongle port I/O panel M3X4 3
Wireless card
shield
Wireless card
bracket
Middle frame M3X4 5
Middle frame M2X3 2
Middle frame M3X4 1
System board M3X4 3
System board M2X2.5 2
System board M2X2.5 1
15
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.
16
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
regulatory_compliance.
Inside view of your computer (touch screen)
www.dell.com/
Figure 1. : Inside view of your computer
1
2.5-inch hard drive 2 hard-drive cage
3 power-supply unit 4 chassis fan
17
5 system board 6 microphone module
7 coin-cell battery 8 middle frame
9 processor heat-sink 10 processor
11 memory module 12 wireless-card shield
13 solid-state drive (M.2) 14 I/O board
15 speakers (2) 16 memory fan
17 I/O panel 18 camera
19 USB dongle-port 20 display built-in self test button
21 power-button board
board
18
Inside view of your computer (non-touch screen)
Figure 2. : Inside view of your computer (non-touch screen)
1
2.5-inch hard drive 2 hard-drive cage
3 power-supply unit 4 chassis fan
5 microphone module 6 system board
7 coin-cell battery 8 middle frame
9 processor heat-sink 10 processor
11 memory module 12 wireless-card shield
13 solid-state drive (M.2) 14 I/O board
15 speakers (2) 16 memory fan
17 I/O panel 18 camera
19 USB dongle-port 20 display built-in self test button
board
19
21 power-button board
System Board Components
1 microphone cable connector 2 processor socket
3 coin-cell battery connector 4 memory module slot
5 wireless-card slot 6 audio-cable connector
7 media-card connector 8 SSD-card connector (M.2)
9 speaker cable connector 10 converter-board cable connector
11 memory-fan cable connector 12 USB 3.0 ports (4)
13 HDMI port 14 display port
15 power-supply unit cable connector 16 network port
17 Thunderbolt 3 (USB Type-C) ports
(2)
20
18 SATA-card slot
19 chassis-fan cable connector 20 SATA power connector
21 password clear jumper 22 CMOS clear jumper
23 side USB connector 24 touch cable connector
25 camera connector 26 display connector
27 thermal pads (on computers shipped
with integrated graphics)
21
Removing the USB dongle-bay 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
regulatory_compliance.
Procedure
CAUTION: Place the computer on a at, soft and clean surface to avoid
scratching the display.
1 Place the computer face down.
2 Press and pull the USB dongle-bay cover.
www.dell.com/
22
Replacing the USB dongle-bay 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
regulatory_compliance.
Procedure
Align the tabs on the USB dongle-bay cover into the slots on the back cover and
snap the USB dongle-bay cover into place.
www.dell.com/
23
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
regulatory_compliance.
Prerequisites
Remove the USB dongle-bay cover.
Procedure (touch screen)
1 Loosen the captive screws that secure the back cover to the inner frame.
www.dell.com/
24
2 Slide the back cover towards the top of the computer and lift the back cover o
the inner frame.
25
Procedure (non-touch screen)
1 Push the stand down.
2 Loosen the captive screws that secure the back cover to the inner frame.
26
3 Slide the back cover towards the top of the computer and lift the back cover o
the inner frame.
27
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
regulatory_compliance.
Procedure
1 Align the tabs on the back cover with the slots on the inner frame.
2 Slide the back cover towards the bottom of the computer and snap the back
cover in place.
3 Tighten the captive screws that secure the back cover to the inner frame.
Post-requisites
Replace the USB dongle-bay cover.
www.dell.com/
28
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
regulatory_compliance.
Prerequisites
1 Remove the USB dongle-bay cover.
2 Remove the back cover.
Procedure
1 Using the tabs pry open the memory-module shield.
www.dell.com/
29
2 Using your ngertips, spread apart the securing clips at each end of the
memory-module slot until the memory module pops up.
3 Slide and remove the memory module from the memory-module slot.
30
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