Dell Latitude 3301 User manual

Dell Latitude 3301
Service Manual
Regulatory Model: P114G
Regulatory Type: P114G001

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.
© 2019 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.
2019 - 05
Rev. A00

Contents
1 Working on your computer............................................................................................................................. 5
Safety instructions............................................................................................................................................................. 5
Turning o your computer — Windows 10.....................................................................................................................5
Before working inside your computer..............................................................................................................................6
After working inside your computer.................................................................................................................................6
2 Technology and components..........................................................................................................................7
LPDDR3...............................................................................................................................................................................7
Memory Errors..............................................................................................................................................................7
HDMI 1.4- HDMI 2.0........................................................................................................................................................... 7
HDMI 1.4- HDMI 2.0 Features.....................................................................................................................................7
Advantages of HDMI................................................................................................................................................... 8
USB features.......................................................................................................................................................................8
USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)............................................................................................................. 8
Speed.............................................................................................................................................................................9
Applications...................................................................................................................................................................9
Compatibility................................................................................................................................................................10
Intel Optane memory........................................................................................................................................................10
Enabling Intel Optane memory..................................................................................................................................10
Disabling Intel Optane memory.................................................................................................................................. 11
3 Removing and installing components............................................................................................................12
Recommended tools.........................................................................................................................................................12
Screw list........................................................................................................................................................................... 12
Disassembly and reassembly........................................................................................................................................... 14
Base cover...................................................................................................................................................................14
Battery......................................................................................................................................................................... 16
Coin-cell battery..........................................................................................................................................................18
Solid-state drive......................................................................................................................................................... 20
Heat sink..................................................................................................................................................................... 23
Fan............................................................................................................................................................................... 25
Speakers......................................................................................................................................................................27
WLAN card................................................................................................................................................................. 29
WWAN card.................................................................................................................................................................31
Touchpad.....................................................................................................................................................................33
Power-adapter port................................................................................................................................................... 35
Display assembly.........................................................................................................................................................37
I/O board..................................................................................................................................................................... 41
Power-button board.................................................................................................................................................. 44
Power button with ngerprint reader......................................................................................................................45
System board..............................................................................................................................................................47
Display bezel............................................................................................................................................................... 50
Display panel............................................................................................................................................................... 52
Contents 3

Display hinges............................................................................................................................................................. 57
Camera........................................................................................................................................................................58
Display back-cover.....................................................................................................................................................60
Display cable............................................................................................................................................................... 62
Palm-rest and keyboard assembly........................................................................................................................... 63
4 Troubleshooting........................................................................................................................................... 66
Enhanced Pre-Boot System Assessment (ePSA) diagnostics...................................................................................66
Running the ePSA diagnostics.................................................................................................................................66
System diagnostic lights................................................................................................................................................. 66
Flashing BIOS (USB key)................................................................................................................................................ 67
Flashing the BIOS............................................................................................................................................................ 68
Backup media and recovery options..............................................................................................................................68
WiFi power cycle..............................................................................................................................................................68
Flea power release........................................................................................................................................................... 68
5 Getting help.................................................................................................................................................69
Contacting Dell.................................................................................................................................................................69
4 Contents

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
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 at the same time as touching a connector on the back of the computer.
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.
CAUTION: System will shut down if side covers are removed while the system is running. The system will not power on if the side
cover is removed.
CAUTION: System will shut down if side covers are removed while the system is running. The system will not power on if the side
cover is removed.
CAUTION: System will shut down if side covers are removed while the system is running. The system will not power on if the side
cover is removed.
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 or
remove the side cover.
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.
1
Working on your computer 5

Before working inside your computer
NOTE: The images in this document may dier from your computer depending on the conguration you ordered.
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.
6 Working on your computer

Technology and components
NOTE: Instructions provided in this section are applicable on computers shipped with Windows 10 operating system. Windows 10
is factory-installed with this computer.
Topics:
• LPDDR3
• HDMI 1.4- HDMI 2.0
• USB features
• Intel Optane memory
LPDDR3
LPDDR3 (double data rate third generation low voltage) memory is a higher-speed successor to the DDR2 and DDR3 technologies and
allows up to 512 GB in capacity, compared to the DDR3's maximum of 128 GB per DIMM.
LPDDR3 needs 20 percent less or just 1.35 volts, compared to DDR3 which requires 1.5 volts of electrical power to operate. LPDDR3 also
supports a new, deep power-down mode that allows the host device to go into standby without needing to refresh its memory. Deep
power-down mode is expected to reduce standby power consumption by 40 to 50 percent.
Memory Errors
Memory errors on the system display the new ON-FLASH-FLASH or ON-FLASH-ON failure code. If all memory fails, the LCD does not
turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on the bottom of the
system or under the keyboard, as in some portable systems.
NOTE: The LPDDR3 memory is imbedded in board and not a replaceable DIMM as shown and referred.
HDMI 1.4- HDMI 2.0
This topic explains the HDMI 1.4/2.0 and its features along with the advantages.
HDMI (High-Denition Multimedia Interface) is an industry-supported, uncompressed, all-digital audio/video interface. HDMI provides an
interface between any compatible digital audio/video source, such as a DVD player, or A/V receiver and a compatible digital audio and/or
video monitor, such as a digital TV (DTV). The intended applications for HDMI TVs, and DVD players. The primary advantage is cable
reduction and content protection provisions. HDMI supports standard, enhanced, or high-denition video, plus multichannel digital audio on
a single cable.
NOTE: The HDMI 1.4 will provide 5.1 channel audio support.
HDMI 1.4- HDMI 2.0 Features
•HDMI Ethernet Channel - Adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled
devices without a separate Ethernet cable
•Audio Return Channel - Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system,
eliminating the need for a separate audio cable
2
Technology and components 7

•3D - Denes input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications
•Content Type - Real-time signaling of content types between display and source devices, enabling a TV to optimize picture settings
based on content type
•Additional Color Spaces - Adds support for additional color models used in digital photography and computer graphics
•4K Support - Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema systems
used in many commercial movie theaters
•HDMI Micro Connector - A new, smaller connector for phones and other portable devices, supporting video resolutions up to 1080p
•Automotive Connection System - New cables and connectors for automotive video systems, designed to meet the unique demands of
the motoring environment while delivering true HD quality
Advantages of HDMI
• Quality HDMI transfers uncompressed digital audio and video for the highest, crispest image quality.
• Low -cost HDMI provides the quality and functionality of a digital interface while also supporting uncompressed video formats in a
simple, cost-eective manner
• Audio HDMI supports multiple audio formats from standard stereo to multichannel surround sound
• HDMI combines video and multichannel audio into a single cable, eliminating the cost, complexity, and confusion of multiple cables
currently used in A/V systems
• HDMI supports communication between the video source (such as a DVD player) and the DTV, enabling new functionality
USB features
Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplied the connection between host computers and peripheral
devices like mice, keyboards, external drivers, and printers.
Let's take a quick look on the USB evolution referencing to the table below.
Table 1. USB evolution
Type Data Transfer Rate Category Introduction Year
USB 2.0 480 Mbps High Speed 2000
USB 3.0/USB 3.1 Gen 1 5 Gbps Super Speed 2010
USB 3.1 Gen 2 10 Gbps Super Speed 2013
USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)
For years, the USB 2.0 has been rmly entrenched as the de facto interface standard in the PC world with about 6 billion devices sold, and
yet the need for more speed grows by ever faster computing hardware and ever greater bandwidth demands. The USB 3.0/USB 3.1 Gen 1
nally has the answer to the consumers' demands with a theoretically 10 times faster than its predecessor. In a nutshell, USB 3.1 Gen 1
features are as follows:
• Higher transfer rates (up to 5 Gbps)
• Increased maximum bus power and increased device current draw to better accommodate power-hungry devices
• New power management features
• Full-duplex data transfers and support for new transfer types
• Backward USB 2.0 compatibility
• New connectors and cable
The topics below cover some of the most commonly asked questions regarding USB 3.0/USB 3.1 Gen 1.
8Technology and components

Speed
Currently, there are 3 speed modes dened by the latest USB 3.0/USB 3.1 Gen 1 specication. They are Super-Speed, Hi-Speed and Full-
Speed. The new SuperSpeed mode has a transfer rate of 4.8Gbps. While the specication retains Hi-Speed, and Full-Speed USB mode,
commonly known as USB 2.0 and 1.1 respectively, the slower modes still operate at 480Mbps and 12Mbps respectively and are kept to
maintain backward compatibility.
USB 3.0/USB 3.1 Gen 1 achieves the much higher performance by the technical changes below:
• An additional physical bus that is added in parallel with the existing USB 2.0 bus (refer to the picture below).
• USB 2.0 previously had four wires (power, ground, and a pair for dierential data); USB 3.0/USB 3.1 Gen 1 adds four more for two pairs
of dierential signals (receive and transmit) for a combined total of eight connections in the connectors and cabling.
• USB 3.0/USB 3.1 Gen 1 utilizes the bidirectional data interface, rather than USB 2.0's half-duplex arrangement. This gives a 10-fold
increase in theoretical bandwidth.
With today's ever increasing demands placed on data transfers with high-denition video content, terabyte storage devices, high megapixel
count digital cameras etc., USB 2.0 may not be fast enough. Furthermore, no USB 2.0 connection could ever come close to the 480Mbps
theoretical maximum throughput, making data transfer at around 320Mbps (40MB/s) — the actual real-world maximum. Similarly, USB
3.0/USB 3.1 Gen 1 connections will never achieve 4.8Gbps. We will likely see a real-world maximum rate of 400MB/s with overheads. At this
speed, USB 3.0/USB 3.1 Gen 1 is a 10x improvement over USB 2.0.
Applications
USB 3.0/USB 3.1 Gen 1 opens up the laneways and provides more headroom for devices to deliver a better overall experience. Where USB
video was barely tolerable previously (both from a maximum resolution, latency, and video compression perspective), it's easy to imagine
that with 5-10 times the bandwidth available, USB video solutions should work that much better. Single-link DVI requires almost 2Gbps
throughput. Where 480Mbps was limiting, 5Gbps is more than promising. With its promised 4.8Gbps speed, the standard will nd its way
into some products that previously weren't USB territory, like external RAID storage systems.
Listed below are some of the available SuperSpeed USB 3.0/USB 3.1 Gen 1 products:
• External Desktop USB 3.0/USB 3.1 Gen 1 Hard Drives
• Portable USB 3.0/USB 3.1 Gen 1 Hard Drives
• USB 3.0/USB 3.1 Gen 1 Drive Docks & Adapters
• USB 3.0/USB 3.1 Gen 1 Flash Drives & Readers
• USB 3.0/USB 3.1 Gen 1 Solid-state Drives
Technology and components 9

• USB 3.0/USB 3.1 Gen 1 RAIDs
• Optical Media Drives
• Multimedia Devices
• Networking
• USB 3.0/USB 3.1 Gen 1 Adapter Cards & Hubs
Compatibility
The good news is that USB 3.0/USB 3.1 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0. First of all,
while USB 3.0/USB 3.1 Gen 1 species new physical connections and thus new cables to take advantage of the higher speed capability of
the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0 contacts in the exact same location as
before. Five new connections to carry receive and transmitted data independently are present on USB 3.0/USB 3.1 Gen 1 cables and only
come into contact when connected to a proper SuperSpeed USB connection.
Windows 10 will be bringing native support for USB 3.1 Gen 1 controllers. This is in contrast to previous versions of Windows, which
continue to require separate drivers for USB 3.0/USB 3.1 Gen 1 controllers.
Intel Optane memory
Intel Optane memory functions only as a storage accelerator. It neither replaces nor adds to the memory (RAM) installed on your computer.
NOTE: Intel Optane memory is supported on computers that meet the following requirements:
• 7th Generation or higher Intel Core i3/i5/i7 processor
• Windows 10 64-bit version 1607 or higher
• Intel Rapid Storage Technology driver version 15.9.1.1018 or higher
Table 2. Intel Optane memory specications
Feature Specications
Interface PCIe 3x2 NVMe 1.1
Connector M.2 card slot (2230/2280)
Congurations supported • 7th Generation or higher Intel Core i3/i5/i7 processor
• Windows 10 64-bit version 1607 or higher
• Intel Rapid Storage Technology driver version 15.9.1.1018 or
higher
Capacity 16 GB
Enabling Intel Optane memory
1 On the taskbar, click the search box, and type "Intel Rapid Storage Technology".
2 Click Intel Rapid Storage Technology.
3 On the Status tab, click Enable to enable the Intel Optane memory.
4 On the warning screen, select a compatible fast drive, and then click Yes to continue enabling Intel Optane memory.
5 Click Intel Optane memory > Reboot to enable the Intel Optane memory.
NOTE: Applications may take up to three subsequent launches after enablement to see the full performance benets.
10 Technology and components

Disabling Intel Optane memory
CAUTION: After disabling Intel Optane memory, do not uninstall the driver for Intel Rapid Storage Technology as it will result in a
blue screen error. The Intel Rapid Storage Technology user interface can be removed without uninstalling the driver.
NOTE: Disabling Intel Optane memory is required before removing the SATA storage device, accelerated by the Intel Optane
memory module, from the computer.
1 On the taskbar, click the search box, and then type "Intel Rapid Storage Technology".
2 Click Intel Rapid Storage Technology. The Intel Rapid Storage Technology window is displayed.
3 On the Intel Optane memory tab, click Disable to disable the Intel Optane memory.
4 Click Yes if you accept the warning.
The disabling progress is displayed.
5 Click Reboot to complete disabling Intel Optane memory and restart your computer.
Technology and components 11

Removing and installing components
Recommended tools
The procedures in this document require the following tools:
• Phillips #0 screwdriver
• Phillips #1 screwdriver
• Philips #2 screwdriver
• Plastic scribe
• T-30 torx screwdriver
NOTE: The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4
Screw list
NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then
place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when
the component is replaced.
NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surface when replacing a
component.
3
12 Removing and installing components

NOTE: Screw color may vary with the conguration ordered.
Table 3. Screw list
Component Secured to Screw type Quantity Screw image
Base cover Palm rest and keyboard
assembly
M2x6
Captive screws
4
3
NOTE: Screw color
may vary depending
on the conguration
ordered.
Battery Palm rest and keyboard
assembly
M2x3 4
Battery Palm rest and keyboard
assembly
M1.6x4 1
Fan Palm rest and keyboard
assembly
M2x3 2
WLAN Card WLAN Card bracket M2x2.5 1
WWAN Card WWAN Card bracket M2x2.5 1
Touchpad Palm-rest keyboard
assembly.
M1.6x2 5
M.2 2230/2280 Solid
State Drive
Palm rest and keyboard
assembly
M2x2.5 1
Heat sink System board Captive screws 7
Hinges Palm rest and keyboard
assembly
M2.5x3.5 2
Hinge brackets Display back-cover and
antenna assembly
M2.5x3.5 1
Hinge brackets Display back-cover and
antenna assembly
M2x2 2
I/O board Palm rest and keyboard
assembly
M2.5x3.5 2
I/O board Palm rest and keyboard
assembly
M2x3 1
USB Type-C port bracket System board M2.5x3.5 1
Power-adapter port Palm rest and keyboard
assembly
M2x3 1
Power-button board Palm rest and keyboard
assembly
M2x2 1
Power button with
ngerprint reader
(optional)
Palm rest and keyboard
assembly
M2x2 1
System board Palm rest and keyboard
assembly
M2x4 2
Wireless-card bracket System board M2x3 1 Removing and installing components 13

Disassembly and reassembly
Base cover
Removing the base cover
1 Follow the procedure in Before working inside your computer.
The following image indicates the location of the base cover and provides a visual representation of the removal procedure.
1 Loosen the three captive screws on the base cover.
2 Remove the four screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly.
3 Pry the base cover starting from the top-left corner of the palm-rest and keyboard assembly.
4 Lift the base cover o the palm-rest and keyboard assembly.
Installing the base cover
If you are replacing a component, remove the existing component before performing the installation procedure.
14 Removing and installing components

The following image indicates the location of the base cover and provides a visual representation of the installation procedure.
1 Place the computer with the hinges facing towards you.
2 Align the base cover on the palm-rest and keyboard assembly, and snap the base cover into place.
3 Replace the four screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly.
4 Tighten the three captive screws that secure the base cover to the palm-rest and keyboard assembly.
1 Follow the procedure in After working inside your computer.
Removing and installing components 15

Battery
Lithium-ion battery precautions
CAUTION:
• Exercise caution when handling Lithium-ion batteries.
• Discharge the battery as much as possible before removing it from the system. This can be done by disconnecting the AC adapter
from the system to allow the battery to drain.
• Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
• Do not expose the battery to high temperatures, or disassemble battery packs and cells.
• Do not apply pressure to the surface of the battery.
• Do not bend the battery.
• Do not use tools of any kind to pry on or against the battery.
• Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental puncture or damage to the
battery and other system components.
• If a battery gets stuck in a device as a result of swelling, do not try to free it as puncturing, bending, or crushing a Lithium-ion
battery can be dangerous. In such an instance, contact for assistance and further instructions.
• If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a
lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See https://www.dell.com/
support.
• Always purchase genuine batteries from https://www.dell.com or authorized Dell partners and resellers.
Removing the battery
1 Follow the procedure in Before working inside your computer.
2 Remove the base cover.
The following image indicates the location of the battery and provides a visual representation of the removal procedure.
16 Removing and installing components

1 Disconnect the battery cable from the system board.
2 Remove the four screws (M2x2) that secure the battery to the palm-rest and keyboard assembly.
3 Remove the screw (M1.6x4) that secures the battery to the system board and palm-rest and keyboard assembly.
4 Lift the battery o the palm-rest and keyboard assembly.
Installing the battery
If you are replacing a component, remove the existing component before performing the installation procedure.
The following image indicates the location of the battery and provides a visual representation of the installation procedure.
Removing and installing components 17

1 Connect the battery cable to the system board.
2 Replace the four screws (M2x2) that secure the battery to the palm-rest and keyboard assembly.
3 Replace the screw (M1.6x4) that secures the battery to the system board and palm-rest and keyboard assembly.
1 Install the base cover.
2 Follow the procedure in After working inside your computer.
Coin-cell battery
Removing the coin-cell battery
1 Follow the procedure in Before working inside your computer.
CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is recommended that
you note the BIOS setup program’s settings before removing the coin-cell battery.
2 Remove the base cover.
3 Remove the battery.
The following image indicates the location of the coin-cell battery and provides a visual representation of the removal procedure.
18 Removing and installing components

1 Disconnect the coin-cell battery cable from the system board.
2 Remove the coin-cell battery cable from the routing guide.
3 Peel the coin-cell battery o the palm-rest and keyboard assembly.
Installing the coin-cell battery
If you are replacing a component, remove the existing component before performing the installation procedure.
The following image indicates the location of the coin-cell battery and provides a visual representation of the installation procedure.
1 Adhere the coin-cell battery to the slot on the palm-rest and keyboard assembly.
2 Route the coin-cell battery cable through the routing guide.
Removing and installing components 19

3 Connect the coin-cell battery cable to the system board.
1 Install the battery.
2 Install the base cover.
3 Follow the procedure in After working inside your computer.
Solid-state drive
Removing the M.2 2280 solid-state drive
1 Follow the procedure in Before working inside your computer.
2 Remove the base cover.
3 Remove the battery.
The following image indicates the location of the solid-state drive and provides a visual representation of the removal procedure.
1 Remove the screw (M2x2.5) that secures the solid-state drive to the system board.
2 Slide and remove the solid-state drive o the solid-state drive slot on the system board.
Installing the M.2 2280 solid-state drive
If you are replacing a component, remove the existing component before performing the installation procedure.
The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.
20 Removing and installing components