Iconia B1-A71 User manual

ICONIA TAB B1-A71
S E R V I C E G U I D EG U I D E

i
Table of Contents
Chapter 1. Hardware Specifications and Configurations
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Tablet tour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Bottom View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Right View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Specifications Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Chapter 2. Diagnostic Utilities
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Diagnostic Tool SOP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Tool Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Uninstallation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Chapter 3. Jumper and Connector Locations
Mainboard Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Mainboard Bottom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Chapter 4. Troubleshooting
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Power On Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
No Display Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
LCD Picture Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Touch Screen Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Internal Speaker Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Internal Microphone Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Extend Earphone Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Front Camera Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
WiFi & BT Function Test Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
GPS Function Test Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Other Functions Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Chapter 5. Service and Maintenance
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Recommended Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Maintenance Flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Micro SD Card Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Micro SD Card Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Lower Case Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Lower Case Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Speaker Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Speaker Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Microphone Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Microphone Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Mainboard Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

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Mainboard Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
WLAN Antenna Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
WLAN Antenna Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33
GPS Antenna Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35
GPS Antenna Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Camera Module Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-39
Camera Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40
Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
Chapter 6. FRU (Field Replaceable Unit) List
Exploded Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
FRU List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Screw List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Chapter 7. Test Compatible Components
Android OS Environment Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
ICONIA TAB B1-A71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Chapter 8. Online Support Information
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

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Revision History
Please refer to the table below for the updates made on this service guide.
Copyright
Copyright © 2012 by Acer Incorporated. All rights reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language
or computer language, in any form or by any means, electronic, mechanical, magnetic, optical,
chemical, manual or otherwise, without the prior written permission of Acer Incorporated.
Disclaimer
The information in this guide is subject to change without notice.
Acer Incorporated makes no representations or warranties, either expressed or implied, with
respect to the contents hereof and specifically disclaims any warranties of merchantability or fitness
for any particular purpose. Any Acer Incorporated software described in this manual is sold or
licensed "as is". Should the programs prove defective following their purchase, the buyer (and not
Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing,
repair, and any incidental or consequential damages resulting from any defect in the software.
Acer is a registered trademark of Acer Corporation.
Intel is a registered trademark of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective
holders.
Date Chapter Updates

iv
Conventions
The following conventions are used in this manual:
The following typographical conventions are used in this document:
• Book titles, directory names, file names, path names, and program/process names are shown
in italics.
Example:
the DRS5 User's Guide
/usr/local/bin/fd
the /TPH15spool_M program
• Computer output (text that represents information displayed on a computer screen, such as
menus, prompts, responses to input, and error messages) are shown in constant width.
Example:
[01] The server has been stopped
• User input (text that represents information entered by a computer user, such as command
names, option letters, and words) are shown in constant width bold. Variables contained within
user input are shown in angle brackets (< >).
Example:
At the prompt, type run <file name> -m
• Keyboard keys are shown in bold italics.
Example:
After entering data, press Enter.
• Screen output (text that represents information displayed on the system, such as menus,
prompts, responses to input, and error messages) are shown in bold.
Example:
On the main menu, select OK.
WARNING:
Indicates a potential for personal injury.
CAUTION:
Indicates a potential loss of data or damage to equipment.
IMPORTANT:
Indicates information that is important to know for the proper completion of a
procedure, choice of an option, or completing a task.
NOTE:
Gives bits and pieces of additional information related to the current topic.

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General Information
This Service Guide provides you with all technical information relating to the basic configuration for
Acer's global product offering. To better fit local market requirements and enhance product
competitiveness, your regional office may have decided to extend the functionality of a machine
(e.g. add-on card, modem, or extra memory capabilities). These localized features are not covered
in this generic service guide. In such cases, contact your regional offices or the responsible
personnel/channel to provide you with further technical details.
When ordering FRU parts:
Check the most up-to-date information available on your regional web or channel. If, for whatever
reason, a part number change is made, it may not be noted in this printed service guide.
For Acer-authorized service providers:
Your Acer office may have a different part number code than those given in the FRU list of this
printed service guide. The list provided by your regional Acer office must be used to order FRU
parts for repair and service of customer machines.

CHAPTER 1
Hardware Specifications and Configurations
Hardware Specifications and Configurations . . . . . . . . . . . . . . . . .1-2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Tablet tour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Bottom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Right View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Specifications Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

1-2 Hardware Specifications and Configurations
Hardware Specifications and Configurations
Features
The following is a summary of the computer’s many features:
Form Factor
•7”Tablet
Operating System
• Android Jelly Bean 4.1.2
Platform
• MTK 8317T 1.2G Dual Core
System Memory
• RAM: DDR3 512MB / 1GB
• eMMC: 8GB / 16GB
Display
LCM
• 7” WSVGA LCM (1024 x 600, 169PPI)
Low voltage
LED backlight
70-degree view angle
LVDS interface
Audio Subsystem
• Microphone
• Stereo Speaker
• 3.5mm Audio Jack
Camera
Front Camera
• 0.3M Camera
• Image capture at 15fps @ 1600 x 1200
• Video capture at 30fps @ HD 1280 x 720

Hardware Specifications and Configurations 1-3
Connectivity
Wi-Fi
• IEEE 802.11 b/g/n
Bluetooth
• Bluetooth®4.0
USB
• Micro USB 2.0 Type B port
• Support USB 2.0 Client
GPS
• NH520 module
Expansion Slot
• MicroSD memory card up to 32G (SDHC 2.0 compatible)
Special Keys and Controls
• Capacitive Multi-Touch Screen
• Touch controller - Goodix GT927
• Function buttons
Side (mechanical key):
• Volume Up, Volume Down
•Power
Sensors
•G-Sensor
I/O Ports
• MicroSD memory Card slot
• Micro-B Hyper USB Client
Dimensions and Weight
Dimension
• 197.4 (H) x 128.5 (W) x 11.3 (D) mm (with bezel)
Weight
• < 370g
Power Adapter and Battery
Battery
• Rechargeable Lithium-Ion battery
• Capacity 10W

1-4 Hardware Specifications and Configurations
Power Adapter
• Voltage range/frequency: 100 ~ 240V AC, 50/60 Hz
• DC output: 12V and 1.5 A, 18W
Others
• Reset hole
Green Requirement
• Rohs compliance
• WEEE compliance
• SMT Green process
Accessory
In Box
• Micro USB to USB female cable
• Charger + Plug
•QSG
NOTE:
Protective film is not included.