Lenovo M123 User Manual

ThinkPad Stack Mobile Projector User Guide

For Android 4.4 or later

Download the ThinkPad Stack Assistant app at:

http://www.lenovo.com/stack

Contents

Chapter 1. In the box ............................................................................... 1

Chapter 2. Product overview .................................................................. 2

Chapter 3. Starting the projector ........................................................... 3

Turning on the projector .................................................................................................... 3

Turning off the projector .................................................................................................... 3

Status LEDs ...................................................................................................................... 3

Chapter 4. Initializing the projector ....................................................... 4

Chapter 5. Adjusting the projection angle ............................................ 5

Chapter 6. Using the projector ............................................................... 6

Projector operating system ............................................................................................... 6

Controlling the projector ................................................................................................... 6

Touch pad touch gestures ................................................................................................ 7

Accessing the storage devices ......................................................................................... 8

Sharing the phone or computer screen with the projector ................................................ 8

Sharing the phone screen ............................................................................................ 8

Sharing the computer screen....................................................................................... 8

Sharing the projector screen with an external monitor ..................................................... 8

Casting files from the phone or computer to the projector ............................................... 9

Stacking with ThinkPad Stack devices ............................................................................. 9

ThinkPad Stack devices ............................................................................................... 9

Projector functions extended ....................................................................................... 9

Pairing the projector ....................................................................................................... 10

System update ................................................................................................................ 10

Resetting the projector ................................................................................................... 10

Charging the projector .................................................................................................... 10

Chapter 7. Troubleshooting .................................................................. 11

Chapter 1. In the box

Your option package contains the following:

 ThinkPad Stack Mobile Projector (referred to as projector)
 Lenovo 65W Travel AC Adapter (referred to as ac power adapter)
 ThinkPad Stack Mobile Projector Stand (referred to as stand)
 High-Definition Multimedia Interface (HDMI™) cable
 Documentation
 Protective case

If any item is missing or damaged, contact your place of purchases. Be sure to

retain your proof of purchase and packing material. They might be required to

receive warranty service.

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Chapter 2. Product overview

USB 2.0 connector Audio connector

HDMI connector ac power connector

Security-lock slot Vent-out*

Focus wheel Touch pad

ThinkPad logo LED

Vent-in* Projector icon indicator

Power button Tripod screw hole

Foldout foot Reset hole

Pogo pad

Vent-out* and Vent-in*:

Caution: Do not block the vents when the projector is on.

Speaker

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Chapter 3. Starting the projector

Turning on the projector

Press and hold the power button for 1 second until the projector icon indicator is

solid on.

Turning off the projector

There are three methods to turn off the projector:

 Press and hold the power button for 1 second. Then follow the

instructions on the projector screen to turn off the projector.

 Press and hold the power button for 4 seconds until the projector icon

indicator is off.

 Use ThinkPad Stack Assistant (referred to as Assistant app) to turn off

the projector.

Status LEDs

The status LEDs on the projector flash in the following ways to indicate different

working status of the projector.

LED activity Projector status

Power button LED and projector icon

indicator stay on.

Projector icon indicator stays on and

power button LED flashes in green.

Power button LED and projector icon

indicator stay off.

Power button LED turns amber. Battery low (below 25%)

Power button LED flashes in amber. Battery low (below 10%)

ThinkPad logo LED flashes for 5 times. Power present

Turned on

Standby

Turned off

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