Dell Latitude 12-7275 User manual

Latitude 12–7275
Owner’s Manual
Regulatory Model: T02H
Regulatory Type: T02H001

Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your tablet.
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 ©2016 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.
2015–12
Rev. A00

Contents
1 Before working inside your tablet..................................................................... 8
Before you begin ..................................................................................................................................8
Safety instructions................................................................................................................................. 8
Recommended tools.............................................................................................................................9
2 After working inside your tablet...................................................................... 10
3 Removing the battery.........................................................................................11
Procedure.............................................................................................................................................11
4 Replacing the battery.........................................................................................13
Procedure............................................................................................................................................ 13
5 Removing the solid-state drive........................................................................14
Prerequisites........................................................................................................................................ 14
Procedure............................................................................................................................................ 14
6 Replacing the solid-state drive........................................................................ 16
Procedure............................................................................................................................................ 16
Post-requisites.....................................................................................................................................16
7 Removing the wireless card.............................................................................. 17
Prerequisites.........................................................................................................................................17
Procedure.............................................................................................................................................17
8 Replacing the wireless card..............................................................................19
Procedure............................................................................................................................................ 19
Post-requisites.....................................................................................................................................19
9 Removing the front camera............................................................................. 20
Prerequisites........................................................................................................................................20
Procedure............................................................................................................................................20
10 Replacing the front camera............................................................................ 21
Procedure............................................................................................................................................ 21
Post-requisites.....................................................................................................................................21
11 Removing the back camera............................................................................ 22
Prerequisites........................................................................................................................................ 22
3

Procedure............................................................................................................................................22
12 Replacing the back camera.............................................................................23
Procedure............................................................................................................................................23
Post-requisites.....................................................................................................................................23
13 Removing the coin-cell battery.....................................................................24
Prerequisites........................................................................................................................................24
Procedure............................................................................................................................................24
14 Replacing the coin-cell battery..................................................................... 26
Procedure............................................................................................................................................26
Post-requisites.................................................................................................................................... 26
15 Removing the headset port............................................................................ 27
Prerequisites........................................................................................................................................ 27
Procedure............................................................................................................................................ 27
16 Replacing the headset port............................................................................ 28
Procedure............................................................................................................................................28
Post-requisites.................................................................................................................................... 28
17 Removing the microphone.............................................................................29
Prerequisites........................................................................................................................................29
Procedure............................................................................................................................................29
18 Replacing the microphone.............................................................................30
Procedure............................................................................................................................................30
Post-requisites.................................................................................................................................... 30
19 Removing the power-button board..............................................................31
Prerequisites.........................................................................................................................................31
Procedure............................................................................................................................................ 31
20 Replacing the power-button board..............................................................32
Procedure............................................................................................................................................32
Post-requisites.....................................................................................................................................32
21 Removing the volume-buttons board..........................................................33
Prerequisites........................................................................................................................................ 33
Procedure............................................................................................................................................33
22 Replacing the volume-buttons board..........................................................34
4

Procedure............................................................................................................................................34
Post-requisites.................................................................................................................................... 34
23 Removing the system board...........................................................................35
Prerequisites........................................................................................................................................ 35
Procedure............................................................................................................................................ 35
24 Replacing the system board...........................................................................38
Procedure............................................................................................................................................38
Post-requisites.................................................................................................................................... 38
25 Removing the back cover............................................................................... 39
Prerequisites........................................................................................................................................39
Procedure............................................................................................................................................39
26 Replacing the back cover............................................................................... 41
Procedure............................................................................................................................................ 41
Post-requisites.....................................................................................................................................41
27 Removing the display assembly.....................................................................42
Prerequisites........................................................................................................................................42
Procedure............................................................................................................................................42
28 Replacing the display assembly.....................................................................43
Procedure............................................................................................................................................43
Post-requisites.................................................................................................................................... 43
29 Technology and Components.......................................................................44
Power adapter.....................................................................................................................................44
Processors...........................................................................................................................................44
Identifying processors in Windows 10......................................................................................... 44
Identifying processors in Windows 8........................................................................................... 44
Verifying the processor usage in Task Manager.......................................................................... 45
Verifying the processor usage in Resource Monitor....................................................................45
Chipsets...............................................................................................................................................46
Downloading the chipset driver................................................................................................... 46
Identifying the chipset in Device Manager on Windows 10........................................................46
Identifying chipset in Device Manager on Windows 8................................................................ 47
Graphic options.................................................................................................................................. 48
Downloading Driver......................................................................................................................48
Identifying the display adapter..................................................................................................... 49
Changing the screen resolution...................................................................................................49
Rotating the display.......................................................................................................................49
5

Display options..............................................................................................................................50
Adjusting brightness in Windows 10.............................................................................................50
Adjusting brightness in Windows 8.............................................................................................. 50
Cleaning the display......................................................................................................................50
Using touch screen in Windows 10...............................................................................................51
Using touch screen in Windows 8................................................................................................ 51
Connecting to external display devices........................................................................................51
Realtek ALC3266–CG Waves MaxxAudio Pro controller...................................................................51
Downloading the audio driver.......................................................................................................51
Identifying the audio controller in Windows 10...........................................................................52
Identifying the audio controller in Windows 8.............................................................................52
Changing the audio settings.........................................................................................................52
WLAN cards......................................................................................................................................... 52
Downloading the WLAN driver..................................................................................................... 53
Hard drive options...............................................................................................................................53
Identifying the hard drive in Windows 10.....................................................................................53
Identifying the hard drive in Windows 8.......................................................................................53
Entering BIOS setup...................................................................................................................... 53
Camera features..................................................................................................................................54
Identifying the camera in Device Manager on Windows 10........................................................54
Identifying the camera in Device Manager on Windows 8......................................................... 54
Starting the camera....................................................................................................................... 55
Starting the Camera App...............................................................................................................55
Memory features................................................................................................................................. 56
Verifying system memory in Windows 10....................................................................................56
Verifying system memory in Windows 8......................................................................................56
Verifying system memory in setup............................................................................................... 56
Testing memory using ePSA......................................................................................................... 57
Intel chipset drivers............................................................................................................................. 57
Intel HD Graphics drivers.................................................................................................................... 57
Realtek HD audio drivers.................................................................................................................... 58
Realtek RTS5242-GR Card Reader drivers.........................................................................................58
Realtek LAN network drivers...............................................................................................................58
Intel Wireless 3165 WiFi and Bluetooth drivers..................................................................................58
30 Entering BIOS setup program........................................................................60
With keyboard.....................................................................................................................................60
Without keyboard............................................................................................................................... 60
Flashing the BIOS..........................................................................................................................60
31 Specifications.................................................................................................... 61
6

32 Getting help and contacting Dell..................................................................64
Self-help resources.............................................................................................................................64
Contacting Dell................................................................................................................................... 64
7

1
Before working inside your tablet
NOTE: The images in this document may differ from your tablet 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 tablet.
• Windows 10: Click or tap Start → Power → Shut down.
• Windows 8: Click or tap Power 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 tablet and all attached devices from their electrical outlets.
4. Disconnect all cables such as telephone cables, network cables and so on, from your tablet.
5. Disconnect all attached devices and peripherals, such as keyboard, mouse, monitor, and so on, from
your tablet.
6. Remove any media card and SIM card from your tablet, if applicable.
Safety instructions
Use the following safety guidelines to protect your tablet from potential damage and ensure your
personal safety.
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. 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 tablet cover or panels. After you
finish working inside the tablet, replace all covers, panels, and screws before connecting to the
power source.
CAUTION: To avoid damaging the tablet, 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.
8

CAUTION: Before touching anything inside your tablet, ground yourself by touching an
unpainted metal surface. 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
9

2
After working inside your tablet
CAUTION: Leaving stray or loose screws inside your tablet may severely damage your tablet.
1. Replace all screws and ensure that no stray screws remain inside your tablet.
2. Connect any external devices, peripherals, and cables you removed before working on your tablet.
3. Replace any media card, SIM card, and any other parts that you removed before working on your
tablet.
4. Connect your tablet and all attached devices to their electrical outlets.
5. Turn on your tablet.
10

3
Removing the battery
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
Procedure
CAUTION: Before opening your tablet, ensure that you place the tablet on a soft cloth or clean
surface to avoid any scratches on the display.
1. Turn the tablet over.
2. Remove the screws that secure the back-cover assembly to the display assembly.
3. Using a plastic scribe, pry up along the edges of the back-cover assembly.
1. back-cover assembly 2. screws (4)
3. plastic scribe
4. Carefully, lift the back-cover assembly and turn it over.
11

1. back-cover assembly
5. Remove the screws that secure the battery to the back-cover assembly.
6. Disconnect the battery cable from the system board.
7. Lift the battery, along with its cable, off the back-cover assembly.
1. display assembly 2. screws (5)
3. battery 4. back-cover assembly
5. battery cable
12

4
Replacing the battery
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
Procedure
1. Align the screw holes on the battery with the screw holes on the back-cover assembly.
2. Replace the screws that secure the battery to the back-cover assembly.
3. Connect the battery cable to the system board.
4. Align the back-cover assembly with the display assembly and snap it into place.
5. Replace the screws that secure the back-cover assembly to the display assembly.
6. Turn the tablet over.
13

5
Removing the solid-state drive
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
CAUTION: Solid-state drives are fragile. Exercise care when handling the hard drive.
CAUTION: To avoid data loss, do not remove the solid-state drive while the tablet is in sleep or on
state.
Prerequisites
Remove the battery.
Procedure
1. Remove the screw that secures the solid-state drive to the back-cover assembly.
2. Lift and slide the solid-state drive off the back-cover assembly.
1. screw 2. solid-state drive slot
14

3. solid-state drive 4. back-cover assembly
15

6
Replacing the solid-state drive
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
CAUTION: Solid-state drives are fragile. Exercise care when handling the hard drive.
Procedure
1. Slide the solid-state drive into the slot on the system board.
2. Align the screw hole on the solid-state drive with the screw hole on the back-cover assembly.
3. Replace the screw that secures the solid-state drive to the back-cover assembly.
Post-requisites
Replace the battery.
16

7
Removing the wireless card
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
Prerequisites
Remove the battery.
Procedure
1. Remove the screw that secures the wireless-card bracket and the wireless card to the system board.
2. Lift the wireless-card bracket off the wireless card.
3. Disconnect the antenna cables from the wireless card.
4. Slide and remove the wireless card from the wireless-card slot.
1. wireless-card bracket 2. screw
3. antenna cables (2) 4. wireless card
5. wireless-card slot 6. notch
17

7. tab
18

8
Replacing the wireless card
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
Procedure
CAUTION: To avoid damage to the wireless mini-card, do not place any cables under it.
1. Align the notch on the wireless card with the tab on the wireless-card slot and slide the card into the
wireless-card slot.
2. Align the screw hole on the wireless card with the screw hole on the system board.
3. Connect the antenna cables to the wireless card. The following table provides the antenna-cable
color scheme for the wireless card supported by your tablet:
Connectors on the wireless card Antenna-cable color
Main (white triangle) White
Auxiliary (black triangle) Black
4. Align the screw hole on the wireless-card bracket with the screw hole on the system board.
5. Replace the screw that secures wireless-card bracket and the wireless card to the system board.
Post-requisites
Replace the battery.
19

9
Removing the front camera
WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in Before working inside your tablet. After working inside your tablet,
follow the instructions in After working inside your tablet. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
Prerequisites
Remove the battery.
Procedure
1. Remove the screw that secures the front camera to the back-cover assembly.
2. Disconnect the camera cable from the system board.
3. Lift the front camera, along with its cable, off the back-cover assembly.
1. camera cable 2. screw
3. front camera 4. back-cover assembly
20