Dell Latitude 7389 User manual

Dell Latitude 7389 2-in-1
Owner's Manual
Regulatory Model: P29S
Regulatory Type: P29S001

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.
©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 - 08
Rev. A00

Contents
1 Working on your computer............................................................................................................................. 6
Safety instructions............................................................................................................................................................. 6
Turning o your computer — Windows 10.....................................................................................................................6
Before working inside your computer..............................................................................................................................6
After working inside your computer.................................................................................................................................7
2 Removing and installing components............................................................................................................. 8
Screw size list..................................................................................................................................................................... 8
Recommended tools.......................................................................................................................................................... 9
Micro Secure Digital (SD) Card........................................................................................................................................ 9
Removing the Micro Secure Digital (SD) Card.........................................................................................................9
Installing the Micro Secure Digital (SD) Card........................................................................................................... 9
Subscriber Identity Module (SIM) Card.......................................................................................................................... 9
Removing the micro SIM card or the micro SIM card tray....................................................................................10
Base cover.........................................................................................................................................................................10
Removing the base cover..........................................................................................................................................10
Installing the base cover............................................................................................................................................. 11
Battery................................................................................................................................................................................ 11
Removing the battery................................................................................................................................................. 11
Installing battery..........................................................................................................................................................12
PCIe Solid State Drive (SSD).......................................................................................................................................... 12
Removing the NVMe SSD card................................................................................................................................ 12
Installing the NVMe SSD........................................................................................................................................... 13
WLAN card........................................................................................................................................................................ 13
Removing the WLAN card.........................................................................................................................................13
Installing the WLAN card........................................................................................................................................... 14
WWAN card.......................................................................................................................................................................14
Removing the WWAN card....................................................................................................................................... 14
Installing the WWAN card..........................................................................................................................................15
Power board...................................................................................................................................................................... 15
Removing the power board.......................................................................................................................................15
Installing the power board......................................................................................................................................... 16
Speaker.............................................................................................................................................................................. 16
Removing the speaker module..................................................................................................................................16
Installing the speaker module....................................................................................................................................18
Fingerprint Board.............................................................................................................................................................. 18
Removing the ngerprint reader board....................................................................................................................18
Installing the ngerprint reader board...................................................................................................................... 19
LED Board..........................................................................................................................................................................19
Removing the LED board..........................................................................................................................................20
Installing the LED board............................................................................................................................................ 20
Smart Card Cage.............................................................................................................................................................. 21
Removing the smart card cage.................................................................................................................................21
Contents 3

Installing the smart card cage.................................................................................................................................. 22
Heat Sink...........................................................................................................................................................................22
Removing heat sink assembly...................................................................................................................................22
Installing heat sink assembly.....................................................................................................................................23
Display Assembly..............................................................................................................................................................23
Removing the display assembly................................................................................................................................23
Installing the display assembly..................................................................................................................................26
System Board................................................................................................................................................................... 26
Removing system board............................................................................................................................................ 27
Installing system board..............................................................................................................................................29
Real time clock (RTC)..................................................................................................................................................... 29
Removing the real time clock (RTC)....................................................................................................................... 30
Installing real time clock (RTC)................................................................................................................................ 30
Keyboard............................................................................................................................................................................ 31
Removing keyboard assembly...................................................................................................................................31
Removing keyboard from the keyboard tray.......................................................................................................... 32
Installing keyboard to the keyboard tray................................................................................................................. 33
Installing keyboard assembly.....................................................................................................................................33
Palmrest............................................................................................................................................................................ 34
Replacing palm rest .................................................................................................................................................. 34
3 Technology and components........................................................................................................................36
USB features.................................................................................................................................................................... 36
USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)...........................................................................................................36
Speed.......................................................................................................................................................................... 36
Applications.................................................................................................................................................................37
Compatibility...............................................................................................................................................................38
HDMI 1.4............................................................................................................................................................................38
HDMI 1.4 Features......................................................................................................................................................38
Advantages of HDMI................................................................................................................................................. 38
4 System specications..................................................................................................................................40
System specications......................................................................................................................................................40
Processor specications................................................................................................................................................. 40
Display specications....................................................................................................................................................... 41
Memory .............................................................................................................................................................................41
Video specications..........................................................................................................................................................41
Audio specications..........................................................................................................................................................41
Storage options................................................................................................................................................................ 42
Communication specications........................................................................................................................................42
Near eld communication (NFC) specications.......................................................................................................... 42
Fingerprint reader specications....................................................................................................................................42
Ports and connector specications............................................................................................................................... 43
Touchpad specications.................................................................................................................................................. 43
Camera specications..................................................................................................................................................... 43
IR camera specications................................................................................................................................................. 44
AC adapter specications............................................................................................................................................... 44
4Contents

Battery specications......................................................................................................................................................45
Docking Option.................................................................................................................................................................46
Active Pen.........................................................................................................................................................................46
Physical specications.....................................................................................................................................................46
Environmental specications.......................................................................................................................................... 46
5 System setup...............................................................................................................................................48
Boot menu........................................................................................................................................................................ 48
Navigation keys................................................................................................................................................................ 49
System setup options......................................................................................................................................................49
General screen options....................................................................................................................................................49
System Conguration screen options........................................................................................................................... 50
Video screen options....................................................................................................................................................... 52
Secure Boot screen options........................................................................................................................................... 52
Intel software guard extensions screen options...........................................................................................................53
Performance screen options.......................................................................................................................................... 53
Power management screen options..............................................................................................................................54
POST behavior screen options...................................................................................................................................... 55
Manageability................................................................................................................................................................... 56
Virtualization support screen options............................................................................................................................ 57
Wireless screen options...................................................................................................................................................57
Maintenance screen options...........................................................................................................................................57
System logs screen options............................................................................................................................................58
Updating the BIOS in Windows .................................................................................................................................... 58
System and setup password.......................................................................................................................................... 59
Assigning a system password and setup password...............................................................................................59
Deleting or changing an existing system and or setup password........................................................................ 59
6 Software...................................................................................................................................................... 61
Supported operating systems......................................................................................................................................... 61
Downloading drivers......................................................................................................................................................... 61
Device drivers....................................................................................................................................................................61
Display Adapter........................................................................................................................................................... 61
USB drivers.................................................................................................................................................................62
System drivers............................................................................................................................................................63
Storage controller...................................................................................................................................................... 64
Audio drivers...............................................................................................................................................................65
Identifying Camera.....................................................................................................................................................66
Network adapter........................................................................................................................................................66
7 Troubleshooting........................................................................................................................................... 68
Enhanced Pre-Boot System Assessment — ePSA diagnostics................................................................................68
Running the ePSA diagnostics.................................................................................................................................68
Diagnostic LED.................................................................................................................................................................68
Real Time Clock (RTC) reset..........................................................................................................................................69
8 Contacting Dell............................................................................................................................................ 70
Contents 5

Working on your computer
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise
noted, each procedure included in this document assumes that the following conditions exist:
• You have read the safety information that shipped with your computer.
• A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
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 power source.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional
safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance
CAUTION: Many repairs may only be done by a certied service technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage
due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came
with the product.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an
unpainted metal surface that is grounded to ground yourself before you touch the computer to perform any disassembly tasks.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its
edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.
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; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the
cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a
cable, ensure that both connectors are correctly oriented and aligned.
NOTE: The color of your computer and certain components may appear dierently than shown in this document.
Turning o your computer — Windows 10
CAUTION: To avoid losing data, save and close all open les and exit all open programs before you turn o your
computer .
1 Click or tap .
2 Click or tap and then click or tap Shut down.
NOTE: Ensure that the computer and all attached devices are turned o. If your computer and attached devices did not
automatically turn o when you shut down your operating system, press and hold the power button for about 6 seconds
to turn them o.
Before working inside your computer
1 Ensure that your work surface is at and clean to prevent the computer cover from being scratched.
2 Turn o your computer.
1
6 Working on your computer

3 If the computer is connected to a docking device (docked), undock it.
4 Disconnect all network cables from the computer (if available).
CAUTION: If your computer has an RJ45 port, disconnect the network cable by rst unplugging the cable from your
computer.
5 Disconnect your computer and all attached devices from their electrical outlets.
6 Open the display.
7 Press and hold the power button for few seconds, to ground the system board.
CAUTION: To guard against electrical shock unplug your computer from the electrical outlet before performing Step #
8.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching
an unpainted metal surface at the same time as touching a connector on the back of the computer.
8 Remove any installed ExpressCards or Smart Cards from the appropriate slots.
After working inside your computer
After you complete any replacement procedure, ensure that you connect external devices, cards, and cables before turning on your
computer.
CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries
designed for other Dell computers.
1 Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.
2 Connect any telephone or network cables to your computer.
CAUTION: To connect a network cable, rst plug the cable into the network device and then plug it into the
computer.
3 Connect your computer and all attached devices to their electrical outlets.
4 Turn on your computer.
Working on your computer 7

Removing and installing components
This section provides detailed information on how to remove or install the components from your computer.
Topics:
• Screw size list
• Recommended tools
• Micro Secure Digital (SD) Card
• Subscriber Identity Module (SIM) Card
• Base cover
• Battery
• PCIe Solid State Drive (SSD)
• WLAN card
• WWAN card
• Power board
• Speaker
• Fingerprint Board
• LED Board
• Smart Card Cage
• Heat Sink
• Display Assembly
• System Board
• Real time clock (RTC)
• Keyboard
• Palmrest
Screw size list
Table 1. Latitude 7389 - Screw size list
Component M 2.5 x 2.5L M 2.5 x 4.0L M 2.0 x 3.0L M 2 x 2L M 2.0 x 2L M 2 x 1.7L M 2 x 4L M 2.5 x 5
Hinge
bracket 6
G-senser 1
Lcm frame 2
Hinge
bracket
41
Logic upper
Assy
Power Board 2
LED Board 2
2
8 Removing and installing components

Finger Print
Bracket 1
Touch pad 2
Smart Card 2
K/B to K/B
plate 6 1
K/B plate 13
Bottom Door
Assy 8
System board 6
Fan 1 1
Thermal 4
Battery 4
WLAN 1
WWAN 1
MSATA 1
EDP Bracket 2
USB Type C 2
MB
Recommended tools
The procedures in this document require the following tools:
• Phillips #0 screwdriver
• Phillips #1 screwdriver
• Plastic scribe
NOTE: The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4
Micro Secure Digital (SD) Card
Removing the Micro Secure Digital (SD) Card
1 Follow the procedure in Before working inside your computer.
2 Press in on the Micro SD card to release it from the computer.
3 Slide the Micro SD card out of the computer.
Installing the Micro Secure Digital (SD) Card
1 Slide the Micro SD into the slot until it clicks into place.
2 Follow the procedures in After working inside your computer.
Subscriber Identity Module (SIM) Card
Removing and installing components 9

Removing the micro SIM card or the micro SIM card tray
CAUTION: Removing the micro SIM card when the computer is on may cause data loss or damage the card. Ensure that your
computer is turned o or the network connections are disabled.
NOTE: Micro SIM card tray is available only for systems that are shipped with WWAN card.
1 Insert a paperclip or a micro SIM card removal tool into the pinhole on the micro SIM card tray.
2 Use a scribe to pull the micro SIM card tray.
3 If a micro SIM card is available, remove the micro SIM card from the micro SIM card tray.
Base cover
Removing the base cover
1 Follow the procedure in Before working inside your computer.
2 Loosen the M2.5 x 5.0 captive screws that secure the base cover to the computer.
3 Use a plastic scribe to pry the base cover starting from the hinges at the top edge of the base cover and lift it from the computer.
NOTE: The recesses are located near the hinges at the rear side of the computer.
10 Removing and installing components

Installing the base cover
1 Align the base cover tabs to the slots on the edges of the computer.
2 Press the edges of the cover until it clicks into place.
3 Tighten the M2.5 x 5.0 captive screws to secure the base cover to the computer.
4 Follow the procedure in After working inside your computer.
Battery
Removing the battery
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicroSD card
bBase cover
3 To remove the battery:
a Lift the ribbon, and disconnect the battery cable from the connector on the system board [1].
b Remove the M2.0 x 4 L screws that secure the battery to the computer [2].
NOTE: The image displayed is for reference only. Some components location and screw may vary.
c Lift the battery from the computer [3].
Removing and installing components 11

Installing battery
1 Insert the battery into the slot on the computer.
2 Connect the battery cable to the connector on the system board.
3 Replace the M 2 x 4L screws to secure the battery to the computer.
4 Install the:
abase cover
bSD card
5 Follow the procedure in After working inside your computer.
PCIe Solid State Drive (SSD)
Removing the NVMe SSD card
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicroSD card
bbase cover
cbattery
NOTE: You need not remove the battery, instead you can disconnect the battery cable from the system
board.
3 To remove the NVMe SSD card:
a Loosen the M2.0 x 3.0 screws that secure SSD thermal bracket [1].
b Lift the thermal bracket from the SSD card [2].
c Slide and remove the SSD card from the slot [3].
12 Removing and installing components

Installing the NVMe SSD
1 Insert the NVMe SSD card into the connector.
2 Install the thermal bracket over the SSD card.
3 Tighten the M2.0 x 3.0 screws to secure the SSD thermal bracket.
4 Install the:
abattery
NOTE: If you have not removed the battery, you must connect the battery cable to the system board.
bbase cover
cMicroSD card
5 Follow the procedure in After working inside your computer.
WLAN card
Removing the WLAN card
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicroSD card
bbase cover
cbattery
NOTE: You need not remove battery, instead you can disconnect the battery cable from the system board.
3 To remove the WLAN card:
a Remove the M2.0 x 3.0 screw that secures the metal bracket to the WLAN card [1].
b Lift the metal bracket [2].
Removing and installing components 13

c Disconnect the WLAN cables from the connectors on the WLAN card [3].
d Remove the WLAN card [4].
Installing the WLAN card
1 Insert the WLAN card into the connector on the system board.
2 Connect the WLAN cables to the connectors on the WLAN card.
3 Place the metal bracket and replace the M2.0 x 3.0 screw to secure WLAN card to the computer.
4 Install the:
abattery
NOTE: If you have not removed the battery then you must connect the battery cable to the system board.
bbase cover
cMicroSD card
5 Follow the procedure in After working inside your computer.
WWAN card
Removing the WWAN card
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicroSD card
bbase cover
cbattery
NOTE: You need not remove the battery, instead you can disconnect the battery cable from the system
board.
14 Removing and installing components

3 To remove the WWAN card:
a Remove the M2.0 x 3.0 screw that secures the metal bracket to the WWAN card .
b Lift the metal bracket that secures the WWAN card .
c Disconnect the WWAN cables from the connectors on the WWAN card
d Lift the WWAN card from the computer.
Installing the WWAN card
1 Insert the WWAN card into the connector on the system board.
2 Connect the WWAN cables to the connectors on the WWAN card.
3 Place the metal bracket and replace the M2.0 x 3.0 screw to secure the WLAN card to the computer.
4 Install the:
abattery
NOTE: If you have not removed the battery then you must connect the battery cable to the system board.
bbase cover
cMicroSD card
5 Follow the procedure in After working inside your computer.
NOTE: The IMEI number can also be found on the WWAN card.
Power board
Removing the power board
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicroSD card
bSIM card tray
NOTE: SIM Card tray is available only if your computer is shipped with a WWAN card.
cbase cover
dbattery
3 To remove the power board:
a Lift the coin cell battery axed to the computer [1].
b Disconnect the power cable from the power board [2].
c Remove the M2.0x3.0 screws to release the power board [3].
d Lift the power board from the computer [4].
Removing and installing components 15

Installing the power board
1 Insert the power board into the slot.
2 Replace the M2.0x3.0 screws to secure the power board to the computer.
3 Connect the power board cable to the connector on the system board.
4 Ax the coin cell battery in the slot on the computer.
5 Install the:
abattery
bbase cover
cMicroSD card
6 Follow the procedure in After working inside your computer.
Speaker
Removing the speaker module
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicroSD card
bbase cover
cbattery
dpower board
3 To disconnect the cables:
a Disconnect the and fold back the smart card cable [1].
b Disconnect and fold back the LED board for easy access in removing the speaker module [2].
16 Removing and installing components

4 To release the speaker module:
a Disconnect the speaker cable from the connector on the system board [1].
b Un route the speaker cable from the retention clips and remove the tapes that secure the speaker cable [2].
5 To remove the speaker module:
a Un route the speaker cable by removing the tapes near the palm rest [1].
b Lift the speaker module from the computer.
Removing and installing components 17

NOTE: You can use a plastic scribe to lift the speaker module from the computer.
Installing the speaker module
1 Place the speaker module into the slots on the computer.
2 Route the speaker cable through the routing channel and secure it with the tapes.
3 Connect the speaker cable to the connector on the system board.
4 Connect the LED cable to the connector on the palm rest.
5 Install the:
apower board
bbattery
cbase cover
dMicro SD
6 Follow the procedure in After working inside your computer.
Fingerprint Board
Removing the ngerprint reader board
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicro SD
bbase cover
cbattery
3 To remove the ngerprint reader board:
a Lift the coin cell battery axed to the speaker cables [1].
18 Removing and installing components

b Disconnect the nger print reader cable from the ngerprint reader board and the USH board [2].
NOTE: The cable should be released so that it does not tear.
c Remove the M2 x 3 screw that secures the ngerprint reader bracket [3].
d Lift the ngerprint reader bracket from the ngerprint reader board [3].
e Lift the ngerprint reader board from the slot on the computer.
NOTE: Fingerprint reader board is axed to the palm rest and you may need a plastic scribe to lift the
ngerprint reader board.
Installing the ngerprint reader board
1 Install the ngerprint reader board into the slot.
2 Place the ngerprint reader bracket on the board.
3 Replace the M2 x 3 screw to secure the bracket to the board.
4 Connect the ngerprint reader cable to the ngerprint reader board and the USH board.
5 Ax the coin cell battery on the speaker cable
6 Install the:
abattery
bbase cover
cMicro SD
7 Follow the procedure in After working inside your computer.
LED Board
Removing and installing components 19

Removing the LED board
1 Follow the procedure in Before working inside your computer.
2 Remove:
aMicro SD
bbase cover
cbattery
3 To remove the LED board:
a Disconnect the LED board cable from the LED board [1].
b Remove the tape that secures the LED board to the touchpad panel [2].
c Remove the M2 x 3 screws that secure the LED board [3].
d Lift the LED board from the computer [4].
Installing the LED board
1 Install the LED board into the slot.
2 Replace the M2 x 3 screws to secure the LED board.
3 Ax the tape to secure the LED board.
4 Connect the LED board cable to the LED board.
5 Install the:
abattery
bbase cover
cSD card
6 Follow the procedure in After working inside your computer.
20 Removing and installing components