Lenovo ThinkSmart Hub Hardware Maintenance Manual - Page 18

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Also for Lenovo ThinkSmart Hub: Deployment Manual (13 pages), User Manual (10 pages), Getting Started (21 pages), Configuration Manual (35 pages), Quick Start Manual (2 pages), Quick Start Manual (2 pages)

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Figure 4. Left I/O board

RJ45 cable connector

Ethernet connector

HDMI-out connector

General Guidelines

When removing or replacing an FRU, ensure that you observe the following general guidelines:

1. Do not try to service any device unless you have been trained and certified. An untrained person runs the

risk of damaging parts.

2. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs

are listed at the beginning of each FRU replacement procedure. Remove them in the order in which they

are listed.

3. Follow the correct sequence in the steps for removing an FRU, as shown in the illustrations by the

numbers in square callouts.

4. When removing an FRU, move it in the direction as shown by the arrow in the illustration.

5. To install a new FRU in place, perform the removal procedure in reverse and follow any notes that

pertain to replacement.

6. When replacing an FRU, carefully retain and reuse all screws.

7. When replacing the base cover, reapply all labels that come with the replacement base cover. If some

original labels are not included with the replacement base cover, peal them off from the original base

cover and paste them on the replacement base cover.

Attention: The system board is sensitive to and can be damaged by ESD. Before touching it, establish

personal grounding by touching a ground point with one hand or by using an ESD strap.

Prerequisite

Before you open the top cover, turn off ThinkSmart One and wait several minutes until it is cool.

For access, do the following:

1. Disconnect the power cord from electrical outlet and disconnect all the cables from the device.

2. Place a clean soft cloth, and then lay down the device with the top cover facing up.

ThinkSmart One Hardware Maintenance Manual

I/O board cable connector

HDMI-in connector

System fan cable connector