Lenovo ThinkSmart Hub User Manual page 40

• 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 hub product, the power cord, or power
adapter.
• The hub 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 hub 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 the hub after the power cord has been disconnected, the following
warnings are required for your safety.
Moving Parts:
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek
medical care immediately.
Hot Surface:
Avoid contact with hot components inside the hub. During operation, some components become hot enough
to burn the skin. Before you open the hub cover, turn off the hub, disconnect power, and wait approximately
10 minutes for the components to cool.
After replacing a CRU, reinstall all protective covers, including the hub cover, before connecting power and
operating the hub. 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.
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ThinkSmart Hub User Guide