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

ii
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

iii
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.

v
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.

Hardware Specifications and Configurations 1-5
Tablet tour
Front View
Figure 1-1. Front View
Table 1-1. Front View
#Item Description
1 Touch Screen 7-inch, 1024 x 600 capacitive touch screen.
2 Camera A 0.3-megapixel camera for video chatting and self-portrait
images.
3 Microphone Receives audio input.
1
2
3

1-6 Hardware Specifications and Configurations
Rear View
Figure 1-2. Rear View
Table 1-2. Rear View
#Item Description
1 Speakers Emits stereo audio.
1

Hardware Specifications and Configurations 1-7
Top View
Figure 1-3. Top View
Table 1-3. Top View
Bottom View
Figure 1-4. Bottom View
Table 1-4. Bottom View
#Item Description
1 Headset Jack Connects to stereo headphones.
#Item Description
1 Micro-B USB Port Connects to a computer or power adapter with a USB
cable.
2 Card Slot Cover Insert a micro SD card into the slot under this cover.
1
1 2

1-8 Hardware Specifications and Configurations
Right View
Figure 1-5. Right View
Table 1-5. Right View
#Item Description
1ResetHole
Insert a pointed object, such as a paper clip, into the reset
hole to reset the tablet to its factory defaults.
2 Power Button
• Press and hold to turn the tablet on or off.
• Press briefly to turn the screen on/off or enter sleep
mode.
3 Volume Control Increases or decreases the tablet volume.
1
2
3

Hardware Specifications and Configurations 1-9
System Block Diagram
Figure 1-6. System Block Diagram
LVDS
CONN.
MSDC3
PCM, UART3, I2S
AW-NH520 Blue Tooth WiFi
GPS
I2C EINT
EMI
USB
KCOL & KROW
5-pin mini USB
Capacitive
Touch Panel
GT927
Sub Camera Camera IF, I2C
PWM
BACKLight
Driver
RGB
I2C, EINT
DC IN
BJT
Battery Input
SPK (HPLP)
Headset (HPLP, HPRP, MIC3)
Class D /
Class AB
MIC1
SN75LVDS83B
Battery
MT6329 PMU
AUDIO LDO OUTPUT
BUCK OUTPUT CHARGER
AUD, HSP,
BUCK Output LDO Output
G Sensor
eMMC
Sidekey
MSDC1MSDC0
micro SD
UART3
UART2
Debug Port
MT8317 Cortex-A9 1.2GHz Dual-Core
JTAG
UART4
UART1
DDR3 512MB (2Gb X16 *2 Pcs)
OR
DDR3 1GB (4Gb X16 *2 Pcs)
LCM

1-10 Hardware Specifications and Configurations
Specifications Table
Computer specifications
Item Metric Imperial
Dimensions
Length 197.4 mm 7.77 in
Width 128.5 mm 5.06 in
Height (front to rear) 11.3 mm 0.44 in
Weight 320 g 0.17 lb
Input power
Operating voltage AC Input: 100V ~ 240V / DC Output: 5.35V
Operating current AC Input: 0.3A / DC Output: 2.0A
Temperature
Operating 0º ~ 60ºC 32º ~ 140ºF
Non-operating -30º ~ 75ºC -22º ~ 167ºF
Relative humidity
Operating 0% ~ 80%
Non-operating 0% ~ 80%
Maximum altitude (unpressurized)
Operating N/A N/A
Non-operating N/A N/A
Shock
Operating Amplitude: 105 g
Non-operating Amplitude: 220 g
Random vibration
Operating 1.644 g
Non-operating 1.644 g
NOTE:
Applicable product safety standards specify thermal limits for plastic surfaces. The computer
operates well within this range of temperatures.

Hardware Specifications and Configurations 1-11
System Board Major Chips
Item Specification
CPU
MT8317T
1.2GHz dual-core Cortex-A9 AP MCU
520 MHz ARM1176 + 260 MHz DSP modem cores MD MCU
Graphics Processor 3D graphics (OpenGLIES 2.0)
LVDS transmitter SN75LVDS83BZQLR
PMU MT6329A
DDR3L DDR3 512MB / 1G
ULPI Phy for USB N/A
Bluetooth Azurewave AW-NH520
Wireless Azurewave AW-NH520
GPS Azurewave AW-NH520
GPS Low-Noise Amplifier BGU7005
TOUCH controller GT927
eMMC 8G / 16G
CAMERA
0.3M Camera – (Chicony 0.3M, OV 7675)
Capture : 15 fps at full resolution - 1600 x 1200
Video recording : 30 fps at HD - 1280 x 720
Thermal Sensor N/A
Audio codec MT8317T (Embedded in CPU)
Audio Amplifier MT6329A (Embedded in PMU)
Echo Cancellation N/A
Battery Charger NCP1851FCCT1G_CSP25
Embedded Controller IC N/A
Compass N/A
Gyro N/A
G-Sensor MC3210
ALS/Proximity N/A

1-12 Hardware Specifications and Configurations
Processor
Processor Specifications
No CPU Fan for this product
No Graphics Controller
No BIOS Setup Menu for this product
No Keyboard for this product
System Memory-DDR3L
System Memory-eMMC (Any conflict, the latest AVL shall prevail)
Item Specification
CPU
MT8317T
1.2GHz dual-core Cortex-A9 AP MCU
520 MHz ARM1176 + 260 MHz DSP modem cores MD MCU
CPU package TFBGA 12.2mm*12.2mm, 537-ball, 0.4mm pitch package.
Item CPU
Speed Cores Bus Speed
(FSB/DMI/QBI)
Mfg Tech Cache
Size Package Core Voltage
MT831
7T
1.2
GHz
Dua-
Core N/A 40nm
L1:32
KB
512K
B L2
cache
TFBGA
12.2*12.2
mm, 537-
ball
0.9V-1.2V
Item Specification
Memory controller Embedded in CPU
Memory size 512 MB / 1 GB DDR3
Item Specification
Vendor &
Model Name
Sandisk 8G
SDIN5D1-8G-L
Samsung 8G
KLM8G2FE3B-B001
Capacity
(GB) 8G 8G
DC Power Requirements
Voltage
tolerance
VCC: 3.3V
VCCQ: 1.8V

Hardware Specifications and Configurations 1-13
LAN Interface
Bluetooth Interface
Audio Amplifier IC
Item Specification
LAN Chipset No support on board LAN
LAN connector type N/A
LAN connector location N/A
Item Specification
Chipset AW-NH520
Data throughput Bluetooth 2.1+Enhanced Data Rate (EDR) /
BT3.0+HX/BT4.0
Protocol TBD
Interface UART
Connector type I-PEX
Supported protocol TBD
Item Specification
Amplifier IC APA2010HAI-TRG
Feature
• Differential & Single-Ended input mode
• Output Power at 1%THD+N
• 2.4W, at VDD=5V, RL=4 ohm (WLCSP-9)
• Output Power at 10%THD+N
• 3.1W, at VDD=5V, RL=4 ohm (WLCSP-9)
• No external output L-C filter required
• The gain of the APA2010 has been set by the external
resistors (Rin)
• Speaker amplifier power supplies from 2.4V to 5.5V
• Low Shutdown Current IDD=1uA at VDD=5V
• High PSRR: 80dB at 217 Hz
• WLCSP1.5x1.5-9A package
• Fast Startup Time (4ms)
• Less External Components Required
• Thermal and Over-Current Protections
• Operating Voltage: 2.4V-5.5
• High Efficiency up to 90%
• Lead Free and Green Devices Available (RoHS
Compliant)

1-14 Hardware Specifications and Configurations
LED 7.0”
No LCD Inverter for this product
Display Supported Resolution (LCD Panel Supported Resolution)
Front Camera
Item Specification
Vendor/model name CMI EJ070NA-01F
Screen Diagonal (mm) 180 (7”W”)
Active Area (mm) 153.6(H) x 90(V)
Display resolution (pixels) 1024 x 3(RGB) x 600
Pixel Pitch (mm) 0.15 X 0.15
Typical White Luminance (cd/m
2
)
also called Brightness 250
Contrast Ratio 700
Response Time (Optical Rise
Time/Fall Time) msec 30
Typical Power Consumption (watt) 1.65
Weight (without inverter) 101
Physical Size (mm) 165.75 x 105.39 x 3.4
Electrical Interface LVDS
Viewing Angle (degree)
Horizontal (Right) CR = 10 (Left)
Vertical (Upper) CR = 10 (Lower)
75/75
70/75
Resolution 16 bits 32 bits 36 bits 48 bits others
1024x600p/60Hz 16:9 X X X X V
Item Specification
Vendor and model Chicony - CIFB03620003350LH
Type VGA