1 Working on your computer............................................................................................................................. 6
Before working inside your computer..............................................................................................................................8
After working inside your computer.................................................................................................................................8
2 Removing and installing components............................................................................................................10
Removing the battery.................................................................................................................................................11
Installing the battery....................................................................................................................................................11
Removing the optical drive .......................................................................................................................................12
Removing the optical drive bracket..........................................................................................................................12
Installing the optical drive bracket............................................................................................................................ 13
Installing the optical drive.......................................................................................................................................... 13
Removing the keyboard............................................................................................................................................. 13
Installing the keyboard............................................................................................................................................... 15
Base cover.........................................................................................................................................................................15
Removing the base cover..........................................................................................................................................15
Installing the base cover............................................................................................................................................ 18
Hard drive.......................................................................................................................................................................... 18
Removing the hard drive assembly...........................................................................................................................18
Removing the hard drive from the hard drive bracket...........................................................................................19
Installing the hard drive into the hard drive bracket.............................................................................................. 20
Installing the hard drive assembly.............................................................................................................................21
Removing the ngerprint reader...............................................................................................................................21
Installing the ngerprint reader................................................................................................................................ 23
Removing the WLAN card........................................................................................................................................23
Installing the WLAN card.......................................................................................................................................... 24
Removing the memory module................................................................................................................................ 25
Installing the memory module...................................................................................................................................25
Removing the coin cell battery.................................................................................................................................26
Contents
3
Installing the coin cell battery................................................................................................................................... 27
Power button board......................................................................................................................................................... 27
Removing the power button board.......................................................................................................................... 27
Installing the power button board............................................................................................................................ 28
Removing the heat sink ............................................................................................................................................28
Installing the heat sink ..............................................................................................................................................29
System fan........................................................................................................................................................................29
Removing the system fan......................................................................................................................................... 29
Installing the system fan........................................................................................................................................... 30
Removing the speakers..............................................................................................................................................31
Installing the speakers................................................................................................................................................31
System board....................................................................................................................................................................32
Removing the system board..................................................................................................................................... 32
Installing the system board....................................................................................................................................... 35
Removing the Input and Output board ..................................................................................................................36
Installing the Input and Output board .....................................................................................................................37
Power connector port..................................................................................................................................................... 37
Removing the power connector...............................................................................................................................37
Installing the power connector.................................................................................................................................38
Removing the display assembly............................................................................................................................... 39
Installing the display assembly...................................................................................................................................41
Removing the display bezel.......................................................................................................................................42
Installing the display bezel......................................................................................................................................... 42
Removing the camera............................................................................................................................................... 43
Installing the camera..................................................................................................................................................44
Removing the display panel...................................................................................................................................... 44
Installing the display panel.........................................................................................................................................46
Removing the display hinges.................................................................................................................................... 46
Installing the display hinges.......................................................................................................................................47
Removing the touchpad............................................................................................................................................48
Installing the touchpad..............................................................................................................................................49
Removing the palmrest.............................................................................................................................................50
Installing the palmrest................................................................................................................................................ 51
3 Technology and components........................................................................................................................52
Advantages of HDMI.................................................................................................................................................52
USB features....................................................................................................................................................................53
USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)...........................................................................................................53
4 System specications..................................................................................................................................56
Hot key combinations......................................................................................................................................................58
5 System setup...............................................................................................................................................59
System setup options......................................................................................................................................................60
Flashing the BIOS from the F12 One-Time boot menu............................................................................................... 68
Updating the BIOS in Windows .....................................................................................................................................72
System and setup password...........................................................................................................................................73
Assigning a system password and setup password............................................................................................... 73
Deleting or changing an existing system and or setup password........................................................................ 73
Intel Dynamic Platform and Thermal Framework......................................................................................................... 77
Disk drivers........................................................................................................................................................................77
Bluetooth drivers..............................................................................................................................................................78
Enhanced Pre-Boot System Assessment — ePSA diagnostics................................................................................80
Running the ePSA diagnostics.................................................................................................................................80
Real Time Clock reset.......................................................................................................................................................81
The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
Observe the following safety precautions before you perform any installation or break/x procedures involving disassembly or reassembly:
•Turn o the system and all attached peripherals.
•Disconnect the system and all attached peripherals from AC power.
•Disconnect all network cables, telephone, and telecommunications lines from the system.
•Use an ESD eld service kit when working inside any notebook to avoid electrostatic discharge (ESD) damage.
•After removing any system component, carefully place the removed component on an anti-static mat.
•Wear shoes with non-conductive rubber soles to reduce the chance of getting electrocuted.
Standby power
Dell products with standby power must be unplugged before you open the case. Systems that incorporate standby power are essentially
powered while turned o. The internal power enables the system to be remotely turned on (wake on LAN) and suspended into a sleep
mode and has other advanced power management features.
1
Unplugging, pressing and holding the power button for 15 seconds should discharge residual power in the system board, notebooks
Bonding
Bonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done through the use of a
eld service electrostatic discharge (ESD) kit. When connecting a bonding wire, ensure that it is connected to bare metal and never to a
painted or non-metal surface. The wrist strap should be secure and in full contact with your skin, and ensure that you remove all jewelry
such as watches, bracelets, or rings prior to bonding yourself and the equipment.
Electrostatic discharge — ESD protection
ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors,
memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittent
problems or a shortened product life span. As the industry pushes for lower power requirements and increased density, ESD protection is an
increasing concern.
Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous
Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.
Two recognized types of ESD damage are catastrophic and intermittent failures.
•Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate and
complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and
immediately generates a "No POST/No Video" symptom with a beep code emitted for missing or nonfunctional memory.
•Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures
means that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but the
6Working on your computer
tracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace may
take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.
The more dicult type of damage to recognize and troubleshoot is the intermittent (also called latent or "walking wounded") failure.
Perform the following steps to prevent ESD damage:
•Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide
adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased
sensitivity to ESD damage.
•Handle all static-sensitive components in a static-safe area. If possible, use anti-static oor pads and workbench pads.
•When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static packing
material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you discharge static
electricity from your body.
•Before transporting a static-sensitive component, place it in an anti-static container or packaging.
ESD eld service kit
The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: anti-static
mat, wrist strap, and bonding wire.
Components of an ESD eld service kit
The components of an ESD eld service kit are:
•Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an anti-static
mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal on the system being
worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly on the mat. ESD-sensitive
items are safe in your hand, on the ESD mat, in the system, or inside a bag.
•Wrist Strap and Bonding Wire – The wrist strap and bonding wire can be either directly connected between your wrist and bare metal
on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that is temporarily placed on
the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD mat, and the hardware is known as
bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use wireless wrist straps. Always be aware that the
internal wires of a wrist strap are prone to damage from normal wear and tear, and must be checked regularly with a wrist strap tester
in order to avoid accidental ESD hardware damage. It is recommended to test the wrist strap and bonding wire at least once per week.
•ESD Wrist Strap Tester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored kit, it is a best
practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A wrist strap tester is the best
method for doing this test. If you do not have your own wrist strap tester, check with your regional oce to nd out if they have one.
To perform the test, plug the wrist-strap's bonding-wire into the tester while it is strapped to your wrist and push the button to test. A
green LED is lit if the test is successful; a red LED is lit and an alarm sounds if the test fails.
•Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are
insulators and often highly charged.
•Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location. For example,
deploying the kit for a server environment is dierent than for a desktop or portable environment. Servers are typically installed in a rack
within a data center; desktops or portables are typically placed on oce desks or cubicles. Always look for a large open at work area
that is free of clutter and large enough to deploy the ESD kit with additional space to accommodate the type of system that is being
repaired. The workspace should also be free of insulators that can cause an ESD event. On the work area, insulators such as Styrofoam
and other plastics should always be moved at least 12 inches or 30 centimeters away from sensitive parts before physically handling any
hardware components
•ESD Packaging – All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded bags are
preferred. However, you should always return the damaged part using the same ESD bag and packaging that the new part arrived in.
The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box that the
new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface, and parts should
never be placed on top of the ESD bag because only the inside of the bag is shielded. Always place parts in your hand, on the ESD mat,
in the system, or inside an anti-static bag.
•Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be
returned to Dell, it is critical to place these parts in anti-static bags for safe transport.
Working on your computer
7
ESD protection summary
It is recommended that all eld service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all
times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while
performing service and that they use anti-static bags for transporting sensitive components.
Transporting sensitive components
When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in
anti-static bags for safe transport.
Lifting equipment
Adhere to the following guidelines when lifting heavy weight equipment:
CAUTION: Do not lift greater than 50 pounds. Always obtain additional resources or use a mechanical lifting device.
1Get a rm balanced footing. Keep your feet apart for a stable base, and point your toes out.
2Tighten stomach muscles. Abdominal muscles support your spine when you lift, osetting the force of the load.
3Lift with your legs, not your back.
4Keep the load close. The closer it is to your spine, the less force it exerts on your back.
5Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your
body and back.
6Follow the same techniques in reverse to set the load down.
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.
3 If the computer is connected to a docking device (docked), undock it.
4 Disconnect all network cables from the computer (if available).
CAUTION
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
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.
: If your computer has an RJ45 port, disconnect the network cable by rst unplugging the cable from your
: To guard against electrical shock unplug your computer from the electrical outlet before performing Step # 8.
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.
Working on your computer
8
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 computer9
Removing and installing components
This section provides detailed information on how to remove or install the components from your computer.
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
Screw size list
Table 1. Vostro 15–3578 screw size list
2
Component
Optical drive bridge3
Optical drive
bracket
Base Cover818
Hard drive4
Hard drive bracket4
System fan2
System board41
Support bracket43
Display assembly3
Display panel4
Display Hinge6
Power button board1
Fingerprint reader
bracket
M2x2 (Big
head 07)
M2x2 (Big
head 05)
M2x2.5M2x5
1
M2x3
(Thin
head)
1
M2x3
M2.5x2.5
(Big head)
M2.5x8M3x3
10Removing and installing components
Battery
Removing the battery
1 Follow the procedure in Before working inside your computer.
2 To remove the battery:
a Slide the release latch to release the battery [1].
b Remove the battery from the computer [2].
Installing the battery
1 Insert the battery into the slot and press until it clicks into place.
2 Follow the procedures in After working inside your computer.
Removing and installing components
11
Optical drive
Removing the optical drive
1 Follow the procedure in Before working inside your computer.
2 Remove the Battery.
3 To remove the optical drive:
a Remove the M2x5 screw that secures the optical drive to the computer [1].
b Using a plastic scribe, push the tab in the direction of the arrow indicated on the chassis. [2].
c Slide the optical drive out of the computer [3].
Removing the optical drive bracket
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a Battery
b Optical drive
3 To remove the optical drive from the bracket:
a Remove the M2x3 screw that secures the optical drive bracket.
12
Removing and installing components
b Remove the optical drive bracket from the optical drive .
Installing the optical drive bracket
1 Install the optical drive bracket.
2 Tighten the M2x3 screw to secure the optical drive bracket.
3 Install the:
a Optical drive
b Battery
4 Follow the procedure in After working inside your computer.
Installing the optical drive
1 Insert the optical drive into the slot until it clicks into place.
2 Tighten the M2x5 screw to secure the optical drive to the computer.
3 Install the Battery.
4 Follow the procedure in After working inside your computer.
Keyboard
Removing the keyboard
1 Follow the procedure in Before working inside your computer.
2 Remove the Battery.
3 To remove the keyboard:
a Using a plastic scribe, release the ve tabs from the slots located above the keyboard [1].
b Flip the keyboard on the palm rest to access the keyboard connector cable under the keyboard [2].
Removing and installing components
13
4 To remove the keyboard cable:
a Disconnect the keyboard cable from the system board.
b Remove the keyboard from the computer.
14
Removing and installing components
Installing the keyboard
1 Connect the keyboard cable to the connector on the system board.
2 Slide the keyboard to align it with the tabs.
3 Press along the top edges to lock the keyboard in place.
4 Install the Battery.
5 Follow the procedure in After working inside your computer.
Base cover
Removing the base cover
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a Battery
b Optical drive
c Keyboard
3 To remove the base cover:
a Disconnect the optical drive connector and lift it to remove it from the system board [1].
Removing and installing components
15
b Remove the 5 (M2x5) screws that secure the base cover [2].
4 Flip the computer and remove the screws (8 screws - M2.5x8; 3 screws - M2x2; 2 screws- M2x5) that secure the base cover to the
computer.
16
Removing and installing components
5 To remove the base cover:
a Use a scribe to pry the edges of the base cover [1].
b Lift the base cover and remove it from the computer [2].
Removing and installing components
17
Installing the base cover
1 Align the base cover with the screw holders on the computer.
2 Press the edges of the cover until it clicks into place.
3 Tighten the (8 screws - M2.5x8; 3 screws - M2x2; 2 screws- M2x5) screws to secure the base cover to the computer.
4 Flip the computer over.
5 Open the display and connect the optical drive connector to the system board.
6 Tighten the screws to secure the base cover to the palm rest.
7 Install the:
a Keyboard
b Optical drive
c Battery
8 Follow the procedure in After working inside your computer.
Hard drive
Removing the hard drive assembly
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a Battery
18
Removing and installing components
b Optical drive
c Keyboard
d Base cover
3 To remove the hard drive assembly:
a Disconnect the hard drive cable from the connector on the system board [1].
b Remove the 4 (M2x3) screws that secure the hard drive assembly to the computer [2].
c Lift the hard drive assembly away from the computer [3].
Removing the hard drive from the hard drive bracket
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a Battery
b Optical drive
c Keyboard
d Base cover
e Hard drive assembly
3 To remove the hard drive from the hard drive assembly:
a Pull the hard drive cable connector to remove it from the hard drive .
b Remove the 4 (M3x3) screws that secure the hard drive bracket to the hard drive [1].
c Lift the hard drive from the hard drive bracket [2].
Removing and installing components
19
Installing the hard drive into the hard drive bracket
1 Align the screw holders and insert the hard drive into the hard drive bracket.
2 Tighten the M3x3 screws to secure the hard drive to the hard drive bracket.
3 Connect the hard drive cable connector to the hard drive.
4 Install the:
a Hard drive assembly
b Base cover
c Keyboard
20
Removing and installing components
d Optical drive
e Battery
5 Follow the procedure in After working inside your computer
Installing the hard drive assembly
1 Insert the hard drive assembly into the slot on the computer.
2 Tighten the 4 (M2x3) screws to secure the hard drive assembly to the computer.
3 Connect the hard drive cable to the connector on the system board.
4 Install the:
a Base cover
b Keyboard
c Optical drive
d Battery
5 Follow the procedures in After working inside your computer.
Fingerprint reader
Removing the ngerprint reader
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a Battery
b Optical drive
c Keyboard
d Base cover
e Hard drive
3 To remove the ngerprint reader bracket:
a Disconnect the ngerprint reader from the connector on the system board [1].
b Remove the tape that secures the ngerprint assembly to the computer [2]
c Remove the 1 (M2x2.5) screw that secures the ngerprint assembly to the computer [3].
d Lift the ngerprint reader bracket from the computer [4].
Removing and installing components
21
4 Remove the ngerprint reader
a Lift the ngerprint reader board from the computer.
22
Removing and installing components
Installing the ngerprint reader
1 Place the ngerprint reader board into the slot on the computer.
2 Tighten the 1 (M2x2.5) screw that secures the ngerprint reader bracket to the computer.
3 Ax the tape that secures the ngerprint assembly to the computer
4 Connect the ngerprint reader cable to the connector on the system board.
5 Install the:
a Hard drive
b Base cover
c Keyboard
d Optical drive
e Battery
6 Follow the procedures in After working inside your computer.
WLAN card
Removing the WLAN card
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a Battery
b Optical drive
c Keyboard
d Base cover
3 To remove the WLAN card:
a Remove the 1 (M2x3) screw that secures the tab to the WLAN card [1].
Removing and installing components
23
b Lift the tab that secures the WLAN card [2].
c Disconnect the WLAN cables from the connectors on the WLAN card [3].
d Slide the WLAN card from the connector on the system board [4].
Installing the WLAN card
1 Install the WLAN card to the connector on the system board.
2 Connect the WLAN cables to the connectors on the WLAN card.
3 Place the securing tab on the WLAN card and tighten the 1 (M2x3) screw on the computer.
4 Install the:
a Base cover
b Keyboard
c Optical drive
d Battery
5 Follow the procedure in After working inside your computer.
24
Removing and installing components
Memory modules
Removing the memory module
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a Battery
b Optical drive
c Keyboard
d Base cover
3 To remove memory module:
a Pull the clips securing the memory module until the memory module pops up [1].
b Remove the memory module from the system board [2].
Installing the memory module
1 Insert the memory module into the memory socket.
2 Press the memory module until the clips secure the memory module.
3 Install the:
Removing and installing components
25
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