Lenovo ThinkSmart Hub Owner's manual

ThinkSmart Core Kit
Hardware Maintenance Manual

Read this first
Before using this documentation and the product it supports, ensure that you read and understand the
following:
• Chapter “Important safety information” on page
• Documentation in the box
First Edition (August 2021)
© Copyright Lenovo 2021.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-
35F-05925.

Contents
About this anual . . . . . . . . . . . . iii
Chapter 1. I portant safety
infor ation . . . . . . . . . . . . . . . . 1
Safety notices . . . . . . . . . . . . . . . .
Conditions that require immediate action . . . . . .
Service and upgrades . . . . . . . . . . . . . 2
Power cords and power adapters . . . . . . . . . 3
Power cord notice . . . . . . . . . . . . . . . 3
Extension cords and related devices. . . . . . . . 4
Plugs and outlets . . . . . . . . . . . . . . . 5
Power supply statement . . . . . . . . . . . . 5
External devices . . . . . . . . . . . . . . . 5
Lithium coin-cell battery notice (for selected
models) . . . . . . . . . . . . . . . . . . . 6
Heat and product ventilation . . . . . . . . . . . 6
Electrical current safety information . . . . . . . . 7
Liquid crystal display (LCD) notice . . . . . . . . 8
Use earphones, headphones, or a headset . . . . . 9
Choking hazard notice . . . . . . . . . . . . . 9
Plastic bag notice . . . . . . . . . . . . . . . 9
Glass parts notice . . . . . . . . . . . . . . 0
Computer placement notices . . . . . . . . . 0
Hazardous energy statement . . . . . . . . . 0
Tip-over hazard prevention notice. . . . . . . . 0
Static electricity prevention . . . . . . . . . .
Cleaning and maintenance . . . . . . . . . .
Chapter 2. General checkout . . . . . 13
Chapter 3. Product Overview . . . . . 15
SKU overview . . . . . . . . . . . . . . . 6
ThinkSmart Core connector overview . . . . . . 7
Chapter 4. Service checkout and
sy pto -to-FRU index . . . . . . . . 19
Service checkout . . . . . . . . . . . . . . 9
Problem determination tips . . . . . . . . 9
Symptom-to-FRU index . . . . . . . . . . . 20
Power supply problems . . . . . . . . . . 20
POST error codes . . . . . . . . . . . . 2
Chapter 5. FAQ . . . . . . . . . . . . 23
Chapter 6. Troubleshooting,
diagnostics, and recovery . . . . . . . 25
Basic procedure for resolving problems . . . . . 25
Troubleshooting . . . . . . . . . . . . . . 25
Startup and shutdown problems . . . . . . 25
MTR problems . . . . . . . . . . . . . 26
Display problems . . . . . . . . . . . . 26
Audio problems . . . . . . . . . . . . . 28
Network problems . . . . . . . . . . . . 28
Performance problems . . . . . . . . . . 29
Drive problems . . . . . . . . . . . . . 30
USB device problems . . . . . . . . . . 30
Diagnostics . . . . . . . . . . . . . . . . 30
Recovery . . . . . . . . . . . . . . . . . 30
Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . . . 30
Restore your files from a backup . . . . . . 3
Reset from Windows . . . . . . . . . . . 3
Reset from BIOS . . . . . . . . . . . . 3
Use advanced options . . . . . . . . . . 3
Windows automatic recovery. . . . . . . . 3
Create and use a recovery USB device . . . . 32
Update the device driver . . . . . . . . . 32
Chapter 7. Help and support . . . . . 35
Self-help resources . . . . . . . . . . . . . 35
Additional services . . . . . . . . . . . . . 35
Call Lenovo . . . . . . . . . . . . . . . . 37
Before you contact Lenovo . . . . . . . . 37
Lenovo Customer Support Center . . . . . . 37
Chapter 8. Hardware re oval and
installation . . . . . . . . . . . . . . . 39
Handling static-sensitive devices . . . . . . . . 39
Service tool kit . . . . . . . . . . . . . . . 39
Major FRUs and CRUs . . . . . . . . . . . . 40
System board and Skype board . . . . . . . . 43
Looking up FRU information . . . . . . . . . . 44
Removing hardware . . . . . . . . . . . . . 44
External options . . . . . . . . . . . . . 44
Top cover . . . . . . . . . . . . . . . 44
M.2 solid-state drive . . . . . . . . . . . 45
Wi-Fi card . . . . . . . . . . . . . . . 47
System board and heat sink . . . . . . . . 48
Video capture card . . . . . . . . . . . . 49
Skype board . . . . . . . . . . . . . . 50
System fan . . . . . . . . . . . . . . . 5
Thermal sensor . . . . . . . . . . . . . 52
Cable cover . . . . . . . . . . . . . . 52
Decor cover . . . . . . . . . . . . . . 53
Wi-Fi antenna cables . . . . . . . . . . . 54
© Copyright Lenovo 202 i

Chapter 9. Notices and
trade arks . . . . . . . . . . . . . . . 57
ii ThinkSmart Core Kit Hardware Maintenance Manual

About this anual
This manual provides service and reference information for ThinkSmart Core Kit.
Illustrations in this manual might look different from your product.
Use this manual along with the advanced diagnostic tests to troubleshoot problems.
I portant: This manual is intended only for trained service technicians who are familiar with these products.
Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before
servicing one of these products, be sure to read and understand Chapter “Important safety information” on
page .
© Copyright Lenovo 202 iii

iv ThinkSmart Core Kit Hardware Maintenance Manual

Chapter 1. I portant safety infor ation
This chapter provides important safety information for your product.
Note: ThinkSmart Core is referred to as “Computer” in this chapter.
Safety notices
This information can help you safely use your computer. Follow and retain all information included with your
computer. The information in this document does not alter the terms of your purchase agreement or the
Limited Warranty. For more information, go to https://www.lenovo.com/warranty/llw_02.
Customer safety is important. Our products are developed to be safe and effective. However, personal
computers are electronic devices. Power cords, power adapters, and other features can create potential
safety risks that can result in physical injury or property damage, especially if misused. To reduce these risks,
follow the instructions included with your product, observe all warnings on the product and in the operating
instructions, and review the information included in this document carefully. By carefully following the
information contained in this document and provided with your product, you can help protect yourself from
hazards and create a safer computer work environment. If the computer is used in a manner not specified by
the manufacturer, the protection provided by the computer may be impaired.
Note: This information includes references to power adapters and batteries. In addition, some products
(such as speakers and monitors) ship with external power adapters. If you have such a product, this
information applies to your product. In addition, computer products contain a coin-sized internal battery that
provides power to the system clock even when the computer is unplugged, so the battery safety information
applies to all computer products.
Conditions that require i ediate action
Products can beco e da aged due to isuse or neglect. So e product da age is serious enough
that the product should not be used again until it has been inspected and, if necessary, repaired by an
authorized servicer.
As with any electronic device, pay close attention to the product when it is turned on.
On very rare occasions, you ight notice an odor or see a puff of s oke or sparks vent fro your
product. You ight also hear sounds like popping, cracking, or hissing. These ight erely ean that
an internal electronic co ponent has failed in a safe and controlled anner. Or, they ight indicate a
potential safety issue. Do not take risks or atte pt to diagnose the situation yourself. Contact the
Custo er Support Center for further guidance. For a list of Service and Support phone nu bers, see
the following Web site:
https://s artsupport.lenovo.co /supportphonelist
Frequently inspect your co puter and its co ponents for da age, wear, or signs of danger. If you
have any question about the condition of a co ponent, do not use the product. Contact the Custo er
Support Center or the product anufacturer for instructions on how to inspect the product and have it
repaired, if necessary.
In the unlikely event that you notice any of the following conditions, or if you have any safety concerns
with your product, stop using the product and unplug it fro the power source and
teleco unication lines until you can speak to the Custo er Support Center for further guidance.
© Copyright Lenovo 202 1

• Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are
cracked, broken, or damaged.
• Signs of overheating, smoke, sparks, or fire.
• Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign
substances on the battery.
• A cracking, hissing, or popping sound, or strong odor that comes from the product.
• Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord, or
power adapter.
• The computer product, power cord, or power adapter has been exposed to water.
• The product has been dropped or damaged in any way.
• The product does not operate normally when you follow the operating instructions.
Note: If you notice these conditions with a product (such as an extension cord) that is not manufactured for
or by Lenovo, stop using that product until you can contact the product manufacturer for further instructions,
or until you get a suitable replacement.
Service and upgrades
Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or
your documentation. Only use a Service Provider who is approved to repair your particular product.
Note: Some computer parts can be upgraded or replaced by the customer. Upgrades typically are referred
to as options. Replacement parts approved for customer installation are referred to as Customer
Replaceable Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for
customers to install options or replace CRUs. You must closely follow all instructions when installing or
replacing parts. The Off state of a power indicator does not necessarily mean that voltage levels inside a
product are zero. Before you remove the covers from a product equipped with a power cord, always ensure
that the power is turned off and that the product is unplugged from any power source. If you have any
questions or concerns, contact the Customer Support Center.
Although there are no moving parts in your computer after the power cord has been disconnected, the
following warnings are required for your safety.
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek
medical care immediately.
Do not touch hot surface of hot components inside the computer. During operation, some components
become hot enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect
power, and wait approximately 0 minutes for the components to cool.
After replacing a CRU, reinstall all protective covers, including the computer cover, before connecting power
and operating the computer. This action is important to help prevent unexpected electrical shock and help
ensure the containment of an unexpected fire that could happen under extremely rare conditions.
2ThinkSmart Core Kit Hardware Maintenance Manual

When replacing CRUs, be cautious of sharp edges or corners that might cause injury. If you suffer an injury,
seek medical care immediately.
Power cords and power adapters
DANGER
Use only the power cords and power adapters supplied by the product anufacturer.
The power cords shall be safety approved. For Ger any, it shall be H03VV-F, 3G, 0.75 2, or
better. For other countries, the suitable types shall be used accordingly.
Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in
ways that can cause the cord to fray, crack, or cri p. This can present a safety hazard.
Always route power cords so that they will not be walked on, tripped over, or pinched by objects.
Protect power cords and power adapters fro liquids. For instance, do not leave your power cord
or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids
can cause a short circuit, particularly if the power cord or power adapter has been stressed by
isuse. Liquids also can cause gradual corrosion of power cord ter inals and/or the connector
ter inals on a power adapter, which can eventually result in overheating.
Ensure that all power cord connectors are securely and co pletely plugged into receptacles.
Do not use any power adapter that shows corrosion at the ac input pins or shows signs of
overheating (such as defor ed plastic) at the ac input pins or anywhere on the power adapter.
Do not use any power cords where the electrical contacts on either end show signs of corrosion or
overheating or where the power cord appears to have been da aged in any way.
To prevent possible overheating, do not cover the power adapter with clothing or other objects
when the power adapter is plugged into an electrical outlet.
Power cord notice
Note: The power cord and adapter provided with this product are intended to be used with this product
only. Do not use them with any other products.
For your safety, Lenovo provides a power cord with a grounded attachment plug to use with this product. To
avoid electrical shock, always use the power cord and plug with a properly grounded outlet.
Power cords provided by Lenovo in the United States and Canada are listed by Underwriter’s Laboratories
(UL) and certified by the Canadian Standards Association (CSA).
For units intended to be operated at 5 volts: Use a UL-listed and CSA-certified cord set consisting of a
minimum 8 AWG, Type SVT or SJT, three-conductor cord, a maximum of 5 feet in length and a parallel
blade, grounding-type attachment plug rated 0 amperes, 25 volts.
Chapter .Important safety information 3

For units intended to be operated at 230 volts (U.S. use): Use a UL-listed and CSA-certified cord set
consisting of a minimum 8 AWG, Type SVT or SJT, three-conductor cord, a maximum of 5 feet in length
and a tandem blade, grounding-type attachment plug rated 0 amperes, 250 volts.
For units intended to be operated at 230 volts (outside the U.S.): Use a cord set with a grounding-type
attachment plug. The cord set should have the appropriate safety approvals for the country in which the
equipment will be installed.
Power cords provided by Lenovo for a specific country or region are usually available only in that country or
region.
For units intended to be operated in Germany: The power cords must be safety approved. For Germany, it
must be H05VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types must be used accordingly.
For units intended to be operated in Denmark: Use a cord set with a grounding-type attachment plug. The
cord set should have the appropriate safety approvals for the country in which the equipment will be
installed.
For units intended to be operated in Norway, Sweden, Finland: Use a cord set with a two-prong attachment
plug. The cord set should have the appropriate safety approvals for the country in which the equipment will
be installed.
If you intend to use your product in a country or region that is different from your ordering location, please
purchase an additional Lenovo power cord for the country or region where the product will be used. Refer to
the power cord guide provided in our Web site, https://smartsupport.lenovo.com/, for details. Some countries
and regions support multiple voltages, so make sure you order the appropriate power cord for the intended
voltage.
Extension cords and related devices
Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use
are rated to handle the electrical requirements of the product. Never overload these devices. If power strips
are used, the load should not exceed the power strip input rating. Consult an electrician for more information
if you have questions about power loads, power requirements, and input ratings.
4ThinkSmart Core Kit Hardware Maintenance Manual

Plugs and outlets
DANGER
If a receptacle (power outlet) that you intend to use with your co puter equip ent appears to be
da aged or corroded, do not use the outlet until it is replaced by a qualified electrician.
Do not bend or odify the plug. If the plug is da aged, contact the anufacturer to obtain a
replace ent.
Do not share an electrical outlet with other ho e or co ercial appliances that draw large
a ounts of electricity; otherwise, unstable voltage ight da age your co puter, data, or attached
devices.
So e products are equipped with a three-pronged plug. This plug fits only into a grounded
electrical outlet. This is a safety feature. Do not defeat this safety feature by trying to insert it into a
non-grounded outlet. If you cannot insert the plug into the outlet, contact an electrician for an
approved outlet adapter or to replace the outlet with one that enables this safety feature. Never
overload an electrical outlet. The overall syste load should not exceed 80 percent of the branch
circuit rating. Consult an electrician for ore infor ation if you have questions about power loads
and branch circuit ratings.
Be sure that the power outlet you are using is properly wired, easily accessible, and located close to
the equip ent. Do not fully extend power cords in a way that will stress the cords.
Be sure that the power outlet provides the correct voltage and current for the product you are
installing.
Carefully connect and disconnect the equip ent fro the electrical outlet.
Power supply state ent
Never remove the cover on a power supply or any part that has the following label attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label attached.
There are no serviceable parts inside these components. If you suspect a problem with one of these parts,
contact a service technician.
External devices
CAUTION:
Do not connect or disconnect any external device cables other than Universal Serial Bus (USB) and
1394 cables while the co puter power is on; otherwise, you ight da age your co puter. To avoid
possible da age to attached devices, wait at least five seconds after the co puter is shut down to
disconnect external devices.
Chapter .Important safety information 5

Lithiu coin-cell battery notice (for selected odels)
DANGER
Danger of explosion if battery is incorrectly replaced.
If the coin-cell battery is not a CRU, do not atte pt to replace the coin-cell battery. Replace ent of
the battery ust be done by a Lenovo-authorized repair facility or technician.
The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local
laws and regulations.
When replacing the lithium coin-cell battery, use only the same type or equivalent type that is recommended
by the manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed
of. Swallowing the lithium coin-cell battery will cause chocking or severe internal burns in just two hours and
might even result in death.
Keep batteries away from children. If the lithium coin-cell battery is swallowed or placed inside any part of
the body, seek medical care immediately.
Do not:
• Throw or immerse into water
• Heat to more than 00 °C (2 2°F)
• Repair or disassemble
• Leave in an extremely low air pressure environment
• Leave in an extremely high-temperature environment
• Crush, puncture, cut, or incinerate
Dispose of the battery as required by local ordinances or regulations.
The following statement applies to users in the state of California, U.S.A.
California Perchlorate Information:
Products containing manganese dioxide lithium coin-cell batteries may contain perchlorate.
Perchlorate Material - special handling may apply, see https://www.dtsc.ca.gov/hazardouswaste/
perchlorate/.
Heat and product ventilation
Computers, power adapters, and many accessories can generate heat when turned on and when batteries
are charging. Always follow these basic precautions:
• Do not leave your computer, power adapter, or accessories in contact with your lap or any part of your
body for an extended period when the products are functioning or when the battery is charging. Your
6ThinkSmart Core Kit Hardware Maintenance Manual

computer, power adapter, and many accessories produce some heat during normal operation. Extended
contact with the body could cause discomfort or, potentially, a skin burn.
• Do not charge the battery or operate your computer, power adapter, or accessories near flammable
materials or in explosive environments.
• Ventilation slots, fans, and heat sinks are provided with the product for safety, comfort, and reliable
operation. These features might inadvertently become blocked by placing the product on a bed, sofa,
carpet, or other flexible surface. Never block, cover, or disable these features.
Inspect your desktop computer for dust accumulation at least once every three months. Before inspecting
your computer, turn off the power and unplug the computer's power cord from the electrical outlet; then
remove any dust from vents and perforations in the bezel. If you notice external dust accumulation, then
examine and remove dust from the inside of the computer including heat sink inlet fins, power supply vents,
and fans. Always turn off and unplug the computer before opening the cover. If possible, avoid operating
your computer within two feet of high-traffic areas. If you must operate your computer in or near a high-traffic
area, inspect and, if necessary, clean your computer more frequently.
For your safety and to maintain optimum computer performance, always follow these basic precautions with
your desktop computer:
• Keep the cover closed whenever the computer is plugged in.
• Regularly inspect the outside of the computer for dust accumulation.
• Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for
computers in dusty or high-traffic areas.
• Do not restrict or block any ventilation openings.
• Do not store or operate your computer inside furniture, as this might increase the risk of overheating.
• Airflow temperatures into the computer should not exceed 35°C (95°F).
• Do not install air filtration devices. They may interfere with proper cooling.
Electrical current safety infor ation
DANGER
Electric current fro power, telephone, and co unication cables is hazardous.
To avoid a shock hazard:
• Do not use your co puter during a lightning stor .
• Do not connect or disconnect any cables or perfor installation, aintenance, or reconfiguration
of this product during an electrical stor .
• Connect all power cords to a properly wired and grounded electrical outlet.
• Connect properly wired outlets to any equip ent that will be attached to this product.
• Whenever possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equip ent when there is evidence of fire, water, or structural da age.
• Disconnect the attached power cords, battery, and all the cables before you open the device
covers, unless instructed otherwise in the installation and configuration procedures.
• Do not use your co puter until all internal parts enclosures are fastened into place. Never use
the co puter when internal parts and circuits are exposed.
Chapter .Important safety information 7

DANGER
Connect and disconnect cables as described in the following procedures when installing, oving,
or opening covers on this product or attached devices.
To connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlets.
5. Turn devices ON.
To disconnect:
1. Turn everything OFF.
2. First, re ove power cords fro outlets.
3. Re ove signal cables fro connectors.
4. Re ove all cables fro devices.
The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical
cables connected to the computer.
The power cord may be reconnected to the wall outlet or receptacle only after all other electrical cables have
been connected to the computer.
DANGER
During electrical stor s, do not perfor any replace ent and do not connect the telephone cable
to or disconnect it fro the telephone outlet on the wall.
Liquid crystal display (LCD) notice
DANGER
To avoid shock hazards:
• Do not re ove the covers.
• Do not operate this product unless the stand is attached.
• Do not connect or disconnect this product during an electrical stor .
• The power cord plug ust be connected to a properly wired and grounded power outlet.
• Any equip ent to which this product will be attached ust also be connected to properly wired
and grounded power outlets.
• To isolate the onitor fro the electrical supply, you ust re ove the plug fro the power
outlet. The power outlet should be easily accessible.
Handling:
• If your monitor weighs more than 8 kg (39.68 lb), we recommend that it be moved or lifted by two people.
Product disposal (TFT monitors):
• The fluorescent lamp in the liquid crystal display contains mercury; dispose according to local, state, or
federal laws.
8ThinkSmart Core Kit Hardware Maintenance Manual

Battery warnings:
• Risk of explosion if battery is replaced by an incorrect type.
• Dispose of used batteries according to the instructions.
Use earphones, headphones, or a headset
• If your computer has both a headphone connector and an audio line-out connector, always use the
headphone connector for earphones, headphones, or a headset. However, the headphone connector
does not support the microphone of the headset.
• If your computer has both a headset connector and an audio line-out connector, always use the headset
connector for earphones, headphones, or a headset.
Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the
equalizer to maximum increases the earphone and headphone output voltage and the sound pressure level.
Therefore, to protect your hearing, adjust the equalizer to an appropriate level.
Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the
output of the headphone or earphone connectors do not comply with specifications of EN 50332-2. The
headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification
limits the computer’s maximum wide band true RMS output voltage to 50 mV. To help protect against
hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7
Limits) or a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332-
2 can be dangerous due to excessive sound pressure levels.
If your Lenovo computer came with headphones or earphones in the packaging, as a set, the combination of
the headphones or earphones and the computer already complies with the specifications of EN 50332- . If
different headphones or earphones are used, ensure that they comply with EN 50332- (Clause 6.5
Limitation Values). Using headphones that do not comply with EN 50332- can be dangerous due to
excessive sound pressure levels.
Choking hazard notice
CHOKING HAZARD – Product contains small parts.
Keep away from children under three years.
Plastic bag notice
DANGER
Plastic bags can be dangerous. Keep plastic bags away fro babies and children to avoid danger of
suffocation.
Chapter .Important safety information 9

Glass parts notice
CAUTION:
So e parts of your product ay be ade of glass. This glass could break if the product is dropped on
a hard surface or receives a substantial i pact. If glass breaks, do not touch or atte pt to re ove it.
Stop using your product until the glass is replaced by trained service personnel.
Co puter place ent notices
Inappropriate computer placement might cause harm to children.
• Place the computer on a sturdy piece of low-rise furniture or furniture that has been anchored.
• Do not place the computer at the edge of the furniture.
• Keep the computer cables out of the reach of children.
• Some items, such as toys, might attract children. Keep such items away from the computer.
Supervise children in rooms where the above safety instructions cannot be fully implemented.
Hazardous energy state ent
DANGER
Disconnect all power cords fro electrical outlets before re oving the co puter cover or any part
that has the above label attached.
DO NOT disassemble components that have the above label attached. There are no serviceable parts inside
these components.
Your product is designed for safe use. However, hazardous voltage, current, and energy levels are present
inside any component that has this label attached. Disassembling of these components might cause fire or
might even result in death. If you suspect a problem with one of these parts, contact a service technician.
CAUTION:
Bright Light, possible skin or eye da age. Disconnect power before servicing.
CAUTION:
Infrared Light, possible skin or eye da age. Disconnect power before servicing.
Tip-over hazard prevention notice
The computer may cause harm to children if it is not located in an appropriate place. Follow the tips below to
protect children from harm caused by the computer tipping over:
10 ThinkSmart Core Kit Hardware Maintenance Manual

• Place the computers or monitors on sturdy furniture with a low base or furniture that has been anchored.
Push the computers or monitors as far from the edge of the furniture as possible.
• Keep remote controls, toys, and other items that might attract children away from the computers or
monitors
• Keep the computer or monitor cables out of the reach of children.
• Supervise children in rooms where these safety tips have not been followed.
CAUTION:
So e parts of your product ay be ade of glass. This glass could break if the product is dropped on
a hard surface or receives a substantial i pact. If glass breaks, do not touch it or atte pt to re ove
it. Stop using your product until the glass is replaced by trained service personnel.
Static electricity prevention
Static electricity, although harmless to you, can seriously damage computer components and options.
Improper handling of static-sensitive parts can damage the part. When you unpack an option or CRU, do not
open the static-protective package containing the part until the instructions direct you to install it.
When you handle options or CRUs, or perform any work inside the computer, take the following precautions
to avoid static-electricity damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the
edges. Never touch exposed circuitry.
• Prevent others from touching components.
• When you install a static-sensitive option or CRU, touch the static-protective packaging containing the
part to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two
seconds. This reduces static electricity in the package and your body.
• When possible, remove the static-sensitive part from the static-protective packaging and install the part
without setting it down. When this is not possible, place the static-protective packaging on a smooth, level
surface and place the part on it.
• Do not place the part on the computer cover or other metal surface.
Cleaning and aintenance
With appropriate care and maintenance, your computer will serve you reliably. The following topics offer
information to help you keep your computer working with best performance.
Basic aintenance tips
Here are some basic points about keeping your computer functioning properly:
• Keep the computer in a clean, dry environment. Ensure that the computer rests on a flat, steady surface.
• Do not cover any of air vents. These air vents provide airflow to keep the computer from overheating.
• Keep electrical appliances such as an electric fan, radio, high-powered speakers, air conditioner, and
microwave oven away from your computer because the strong magnetic fields generated by these
appliances can damage the monitor and data on the storage drive.
• Keep food and drinks away from all parts of the computer. Food particles and spills might make the
keyboard and mouse stick and unusable.
• Do not get the power switches or other controls wet. Moisture can damage these parts and cause an
electrical hazard.
Chapter .Important safety information 11

• Always disconnect a power cord by grasping the plug instead of the cord.
• Keep the computer software, device drivers, and operating system up-to-date.
• Empty your recycle bin on a regular basis.
• Clean out your Inbox, Sent Items, and Deleted Items folders in your e-mail application on a regular basis.
• Clean up files and free up storage drive space and memory space occasionally to prevent performance
problems.
• Keep a log book. Entries might include major software or hardware changes, device-driver updates,
intermittent problems and what you did to resolve them, and other issues you might have experienced.
The cause of a problem might be change in hardware, change in software, or any other actions that might
have taken place. A log book can help you or a Lenovo technician determine the cause of a problem.
• Back up your data on the storage drive regularly. You can restore the storage drive from a backup.
• Create a recovery medium as early as possible. You can use the recovery medium to recover your
operating system even if Windows fails to start up.
• Get the most up-to-date operating system update patches, software programs, and device drivers.
Maintenance tips about oving the co puter
Before moving the computer, take the following precautions:
. Back up your data on the storage drive.
2. Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
3. If you saved the original shipping cartons and packing materials, use them to pack the units. If you are
using different cartons, cushion the units to avoid damage.
When you move the computer to another country or region, you must take local electrical standards into
consideration. If the local electrical outlet style is different from the type you are currently using, contact the
Lenovo Customer Support Center to purchase either an electrical plug adapter or a new power cord.
Clean your co puter
CAUTION:
Re ove any edia fro the drives and turn off all connected devices and the co puter. Then,
disconnect all power cords fro electrical outlets and disconnect all cables that are connected to the
co puter.
It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble-free
operation.
Clean the co puter surface: Wipe it with a lint-free cloth dampened in mild soap and water. Avoid applying
liquids directly to the surface.
Clean the keyboard: Wipe the keys one by one with a lint-free cloth dampened in mild soap and water. If
you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Avoid
spraying cleaner directly onto the keyboard. To remove any crumbs or dust from beneath the keys, you can
use a camera blower with a brush or use cool air from a hair dryer.
Clean the co puter screen: Scratches, oil, dust, chemicals, and ultraviolet light can affect the performance
of your computer screen. Use a dry, soft lint-free cloth to wipe the screen gently. If you see a scratchlike
mark on your screen, it might be a stain. Wipe or dust the stain gently with a soft, dry cloth. If the stain
remains, moisten a soft, lint-free cloth with water or eyeglass cleaner, but do not apply liquids directly to your
computer screen. Ensure that the computer screen is dry before closing it.
12 ThinkSmart Core Kit Hardware Maintenance Manual

Chapter 2. General checkout
Some descriptions in this chapter might not apply to your particular product.
Before you go to the checkout guide, be sure to read the following important notes.
I portant notes:
• Only certified trained personnel should service the product.
• Before replacing any FRU, read the entire page on re oving and replacing FRUs.
• When you replace FRUs, it is reco ended to use new nylon-coated screws.
• Be extre ely careful during such write operations as copying, saving, or for atting. Drives in the product that
you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be
overwritten.
• Replace a FRU only with another FRU of the correct odel. When you replace a FRU, ensure that the model of
the machine and the FRU part number are correct.
• A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety
of reasons that have nothing to do with a hardware defect, such as cosmic radiation, ESD, or software errors.
Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and
run the test again. If the error does not recur, do not replace the FRU.
• Be careful not to replace a nondefective FRU.
What to do first
When you return a FRU, you must include the following information in the parts exchange form or parts return
form that you attach to it:
. Name and phone number of service technician
2. Date of service
3. Date on which the machine failed
4. Date of purchase
5. Failure symptoms, error codes appearing on the display, and beep symptoms
6. Procedure index and page number in which the failing FRU was detected
7. Failing FRU name and part number
8. Machine type, model number, and serial number
9. Customer’s name and address
Note: During the warranty period, the customer may be responsible for repair costs if the product damage
was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper
maintenance by the customer. Following is a list of some common items that are not covered under warranty
and some symptoms that might indicate that the system was subject to stress beyond normal use.
Before checking problems with the product, determine whether the damage is covered under the warranty
by referring to the following list:
The following are not covered under warranty:
• Display cracked from the application of excessive force or from being dropped
• Scratched (cosmetic) component
• Distortion, deformation, or discoloration of the cosmetic component
• Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force
• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a PC Card or the installation of an incompatible card
• Forgotten product password (making the product unusable)
© Copyright Lenovo 202 13

• Use of an incorrect ac power adapter on laptop products
The following sy pto s ight indicate da age caused by nonwarranted activities:
• Missing parts might be a symptom of unauthorized service or modification.
• Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard
disk drive might have been dropped or subject to excessive force.
14 ThinkSmart Core Kit Hardware Maintenance Manual