Dell Chromebook 13 - 7310
Disassembly and Reassembly Guide
Warning: This manual is intended for use by a Dell Certified Technician. 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.
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell™ and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2017 - 07
Rev. A00
Chassis Front
NonTouch
Features on the front of the Dell Chromebook 13 (7310) are as follows:
Front View Features and Locations
1
Webcam LED
2 |
Webcam |
3 |
Microphones |
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4 |
LCD Display |
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5 |
Power Button |
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6 |
Keyboard |
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7 |
Touch Pad |
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Status LED |
8NOTE:
For more information about the Status LED, refer to the Chassis LED page.
Touch
Features on the front of the Dell Chromebook 13 (7310) are as follows:
Front View Features and Locations
1 |
Webcam |
2 |
Microphones |
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3 |
LCD Display |
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4 |
Power Button |
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5 |
Keyboard |
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6 |
Touch Pad |
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Status LED |
7NOTE:
For more information about the Status LED, refer to the Chassis LED page.
Chassis Left
Features on the left of the Dell Chromebook 13 (7310) are as follows:
Left View Features and Locations
1 |
USB 2.0 |
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2 |
Security Cable Slot (Noble Lock) |
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Chassis Right
Features on the right of the Dell Chromebook 13 (7310) are as follows:
Right View Features and Locations
1 |
DCin Jack |
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2 |
HDMI |
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3 |
USB 3.0 |
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4 |
Universal Audio Jack |
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5 |
Micro SD Card Slot |
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Chassis Bottom
Bottom View Features and Locations
1 |
Express Service Code |
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2 |
Service Tag |
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3 |
Speakers |
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4 |
Air Vents |
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Chassis LED
The battery status LED light is located at the front of the chassis, as shown in the image below.
The table lists the definition of the status LED light.
Battery Status LED
Status LED light
Off
White
Off
Off
Amber
Blinking Amber
Description
AC powered, charge level higher than 96%
AC powered, charge level less than 96%, charging
Battery powered, charge level higher than 14%
Battery powered, charge level less than 14%, machine in S5
Battery powered, charge level less than 14%, machine in S0 or S3
Battery error
Safety Precautions
Observe the following safety precautions before performing any installation or break/fix procedures involving disassembly or reassembly:
Turn off the system and any attached peripherals.
Disconnect the system and any attached peripherals from AC power, and then remove the battery.
Disconnect any telephone or telecommunications lines from the system.
Use a wrist grounding strap and mat when working inside any computer system to avoid electrostatic discharge (ESD) damage.
After removing any system component, carefully place the removed component on an antistatic mat.
Wear shoes with nonconductive rubber soles to help reduce the chance of being shocked or seriously injured in an electrical accident.
Standby Power
Dell products with standby power must be completely unplugged before opening the case. Systems that incorporate standby power are essentially powered while turned off. The internal power enables the system to be suspended into a sleep mode, and have other advanced power management features. After unplugging the system, allow the charge to drain from the circuits by waiting approximately 30 to 45 seconds before removing components.
ElectroStatic Discharge (ESD) Protection
ESD is a major concern when handling electronic components, especially sensitive devices 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 lifespan. 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.
WARNING:
Do not use an ESD grounding strap when working on the internal parts of a monitor, like the CRT, because the stored voltage is extremely harmful.
There are two recognized types of ESD damage, "catastrophic" and "Intermittent" failures.
Catastrophic The damage causes an immediate and complete loss of device functionality. An example of catastrophic failure is a memory DIM which has received a static shock and immediately generates a "No POST/No Video" symptom with a beep code emitted for a missing or nonfunctional memory.
NOTE:
Catastrophic failures only represent roughly 20% of ESD related failures.
Intermittent The DIMM receives a static shock, but the tracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace might take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.
NOTE:
Intermittent failures represent almost 80% of ESD related failures. This means that the majority of the time when the damage occurs, it is not immediately recognizable.
Of these two types, the more difficult to recognize and troubleshoot is the "Intermittent" (also called Latent or "walking wounded") failure. The image below is an example of an "Intermittent" damage to a memory DIMM trace. As you can see, the damage is done although the symptoms may not become an issue or cause permanent failure symptoms for some time after the damage occurs.
Intermittent (Latent) damage to a wiring trace
To prevent static damage, do the following:
Use a Wired (not wireless) ESD wrist strap that is properly grounded. The use of wireless antistatic straps in no longer allowed, as they do not give adequate protection.
Wireless ESD Strap (Unacceptable)
Wired ESD Strap (Acceptable)
Furthermore, simply touching the chassis before handling parts is no longer allowed because this method does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage.
Chassis "Bare metal" Grounding (Unacceptable)
Handle all staticsensitive components in a staticsafe area. If possible, use antistatic floor pads and workbench pads.
When handling staticsensitive components, grab them by the sides, not the top. Avoid touching pins and circuit boards.
When unpacking a staticsensitive component from its shipping carton, do not remove the component from the antistatic packing material until you are ready to install the component. Before unwrapping the antistatic packaging, be sure to discharge static electricity from your body.
Before transporting a staticsensitive component, place it in an antistatic container or packaging.
Insulator Elements
It is critical to keep ESD sensitive devices away from internal parts which are insulators and are often highly charged. These are elements such as plastic heat sink casings.
DIMM lying on an insulator part (plastic heat sink shroud) Unacceptable DIMM kept separate from the insulator part Acceptable
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 antistatic bags for safe transport.
ESD Protection Summary
It is strongly suggested that all field service engineers use the traditional "wired" ESD grounding wrist strap and protective antistatic mat at all times when servicing Dell products. In addition, it is critical that the engineer keep sensitive parts separate from all "insulator" parts while performing service and use antistatic bags for transport of sensitive components.
Lifting Equipment
CAUTION:
Do not lift greater than 50 pounds independently. Always obtain assistance from a second person or utilize a mechanical lifting device.
Adhere to the following guidelines when lifting equipment:
1.Get a firm balanced footing. Keep your feet apart for a stable base, and point your toes out.
2.Bend your knees. Do not bend at the waist.
3.Tighten stomach muscles. Abdominal muscles support your spine when you lift, offsetting the force of the load.
4.Lift with your legs, not your back.
5.Keep the load close. The closer it is to your spine, the less force it exerts on your back.
6.Keep 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.
7.Follow the same techniques in reverse to set the load down.
Tools Required
A set of simple tools are required to service Dell Chromebook 13 (7310). The following image illustrates the Required tools.
Required Tools
Required Tools
1.Small Philips head screwdriver, size #0
2.Plastic scribe
Bottom Cover
Bottom Cover Disassembly Video
The following video contains the brief disassembly procedure, for use by the learner as an additional visual reference.
Offline video. 
(To download, please rightclick on the link above and select "Save Target As" or "Save Link As")
Bottom Cover Disassembly Steps
1.PreRemoval Instructions
Before removing the Bottom Cover:
1.During installation or removal of any hardware always ensure all data is backed up properly.
2.Disconnect any telephone, network, or USB cables from the computer.
3.Disconnect the computer and all attached devices from their electrical outlets.
2. Establishing image.
3. Remove the eleven screws securing the bottom cover.
4. Gently pry loose the bottom cover, beginning from the hinge area, and remove the bottom cover from the system.
5. Complete.
Bottom Cover Reassembly Steps
1.Align and attach the bottom cover onto the system chassis, beginning from the front of the system.
2.
Push the edges of bottom cover into the chassis clips until it is fully engaged.
3.
Tighten the eleven screws to secure the bottom cover.
Bottom Cover Validation Steps
1. Physically look at the edges of the system. Make sure it is aligned properly and no gap should be seen on all edges.
Battery
Battery Disassembly Video
The following video contains the brief disassembly procedure, for use by the learner as an additional visual reference.
Offline video. 
(To download, please rightclick on the link above and select "Save Target As" or "Save Link As")
Battery Disassembly Steps
1.PreRemoval Instructions Before removing the Battery:
1.During installation or removal of any hardware always ensure all data is backed up properly.
2.Disconnect any telephone, network, or USB cables from the computer.
3.Disconnect the computer and all attached devices from their electrical outlets.
4.Remove the Bottom Cover.
2. Establishing image.
3. Disconnect the battery cable from system board.
4. Remove the four screws securing the battery.
5. Remove the battery from the system.
6. Disconnect the battery cable from the battery.
7. Complete.
Battery Reassembly Steps
1. Attach the battery cable into the connector on the battery.
2. 
Align the battery into the battery compartment.
3. Attach the battery cable into the connector on the system board.
4. 
Tighten the four screws to secure the battery in place.
5. Reinstall the preremoval part(s) in descending order.
Battery Validation Steps
1. Power up the system.
2. 
Click on the bottomright corner of the Chrome OS desktop area to check battery status.
M.2 SSD
M.2 SSD Disassembly Video
The following video contains the brief disassembly procedure, for use by the learner as an additional visual reference.
Offline video. 
(To download, please rightclick on the link above and select "Save Target As" or "Save Link As")
M.2 SSD Disassembly Steps
1.PreRemoval Instructions Before removing the M.2 SSD:
1.During installation or removal of any hardware always ensure all data is backed up properly.
2.Disconnect any telephone, network, or USB cables from the computer.
3.Disconnect the computer and all attached devices from their electrical outlets.
4.Remove the Bottom Cover, Battery.
2. Establishing image.
3. Remove the single screw securing the M.2 SSD.
4. Remove the M.2 SSD from the system board.
5. Complete.
M.2 SSD Reassembly Steps
1. Slide the M.2 SSD into its slot.
2. 
Tighten the single screw securing the M.2 SSD in place.
3. Reinstall the preremoval part(s) in descending order.
M.2 SSD Validation Steps
1. Power on the system and ensure system completes the POST and booting up cycle.
WLAN Card
WLAN Card Disassembly Video
The following video contains the brief disassembly procedure, for use by the learner as an additional visual reference.
Offline video. 
(To download, please rightclick on the link above and select "Save Target As" or "Save Link As")
WLAN Card Disassembly Steps
1.PreRemoval Instructions Before removing the WLAN Card:
1.During installation or removal of any hardware always ensure all data is backed up properly.
2.Disconnect any telephone, network, or USB cables from the computer.
3.Disconnect the computer and all attached devices from their electrical outlets.
4.Remove the Bottom Cover, Battery
2. Establishing image.
3. Remove the single screw securing the WLAN bracket.
4. Remove the WLAN bracket from the system.
5. Disconnect any antennas that may be connected to the WLAN card.
6. Remove the WLAN card from the system board.
7. Complete.
WLAN Card Reassembly Steps
1. Slide the WLAN card into its slot.
2. 
Reconnect the antennas to the connectors on the WLAN card.
3. Align the WLAN bracket on the WLAN card.
4. 
Tighten the single screw securing the WLAN card in place.
5. Reinstall the preremoval part(s) in descending order.
WLAN Card Validation Steps
1. Power on the system and verify if it is able to detect any wireless networks in the surrounding area.
I/O Board with Cable
I/O Board with Cable Disassembly Video
The following video contains the brief disassembly procedure, for use by the learner as an additional visual reference.
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