dynabook S Series User manual

[CONFIDENTIAL]
Personal Computer
dynabook PORTEGE A30-E/TECRA A30-G,-J/
dynabook S Series
Maintenance Manual
Rev.00 First issue
Rev.01 Mar. 2020 ･Addition of information of TECRA A30-G model
･Addition of note for LCD removal and for SSD
installation (Chap.4)
Rev.02 Dec. 2020 ･Addition of information of TECRA A30-J model
Rev.03 Oct. 2022 ･Update information of 4.11 LTE MODULE
Dynabook Inc.
File Number (960-931)

ii [CONFIDENTIAL] dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)
Copyright
© 2020 Dynabook Inc. All rights reserved. Under the copyright laws, this manual cannot be
reproduced in any form without our prior written permission. No patent liability is assumed
with respect to the use of the information contained herein.
Disclaimer
The information presented in this manual has been reviewed and validated for accuracy. The
included set of instructions and descriptions are accurate for the product at the time of this
manual's production. However, succeeding computers and manuals are subject to change
without notice. Therefore, we assume no liability for damages incurred directly or indirectly
from errors, omissions, or discrepancies between any succeeding product and this manual.
Trademarks
Intel, Intel logo, Thunderbolt, Thunderbolt logo are trademark of Intel Corporation or its
subsidiaries in the United States and/or other countries.
Microsoft, Windows are either registered trademarks or trademarks of Microsoft Corporation
in the United States and/or other countries.
The Bluetooth® word mark is a registered trademark owned by Bluetooth SIG, Inc.
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are
registered trademarks or trademarks of HDMI Licensing LLC in the United States and other
countries.
Wi-Fi is a registered trademark of Wi-Fi Alliance.
USB Type-C™ and USB-C™ are trademarks of USB Implementers Forum.
All other company names, product names, and service names mentioned herein may be
trademarks of their respective companies.
Other trademarks and registered trademarks not listed above may be used in this manual.

dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931) [CONFIDENTIAL] iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the
computer.
The procedures described in this manual are intended to help service technicians isolate
faulty Field Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your
attention. Each of these messages will be italicized and identified as shown below.
DANGER: “Danger” indicates the existence of a hazard that could result in death or
serious bodily injury, if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance
service.
Improper repair of the computer may result in safety hazards. We require service technicians
and authorized dealers or service providers to ensure the following safety precautions are
adhered to strictly.
 Be sure to fasten screws securely with the right screwdriver. If a screw is not fully
fastened, it could come loose, creating a danger of a short circuit, which could cause
overheating, smoke or fire.
 If you replace the battery pack, be sure to use only the same model battery or an
equivalent battery recommended by us. Installation of the wrong battery can cause the
battery to explode.

iv [CONFIDENTIAL] dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the system unit and each FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve
FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic
operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the
FRUs.
Appendices The appendices describe the following:
 Handling the LCD module
 Board layout
 Pin assignments
 Keyboard Matrix
 Key layout
 Wiring diagrams
 BIOS rewrite procedures
 EC/KBC rewrite procedures
 Reliability

dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931) [CONFIDENTIAL] v
Conventions
This manual uses the following formats to describe, identify, and highlight terms and
operating procedures.
Acronyms
On the first appearance and whenever necessary for clarification acronyms are enclosed in
parentheses following their definition. For example:
Read Only Memory (ROM)
Keys
Keys are used in the text to describe many operations. The key top symbol as it appears on
the keyboard is printed in boldface type.
Key operation
Some operations require you to simultaneously use two or more keys. We identify such
operations by the key top symbols separated by a plus (+) sign. For example, Ctrl + Pause
(Break) means you must hold down Ctrl and at the same time press Pause (Break). If
three keys are used, hold down the first two and at the same time press the third.
User input
Text that you are instructed to type in is shown in the boldface type below:
DISKCOPY A: B:
The display
Text generated by the computer that appears on its display is presented in the type face below:
Format complete
System transferred

vi [CONFIDENTIAL] dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)
Table of Contents
Chapter 1 Hardware Overview
1.1 Features ...... ...... ...............................................................................................................1-1
1.2 SSD ..... ....................................................................... .....................................................1-9
1.3 Keyboard .......................................................... ............ .................................................1-14
1.4 TFT Color Display............................................................. ... .........................................1-18
1.5 Web camera .............................................................. ........... .........................................1-20
1.6 Power Supply .......................................................................... .... ..................................1-21
1.7 Batteries ...................................................................................... ..... .............................1-22
1.8 AC Adapter ..................................................................................... .... ..........................1-25
1.9 USB Type-C Adapter .................................................................................................... 1-28

dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931) [CONFIDENTIAL] vii
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting ............. .... ............................................................................................ 2-1
2.2 Troubleshooting Flowchart ... .... ..................................................................................... 2-3
2.3 Power Supply Troubleshooting .... ..... ............................................................................ 2-8
2.4 System Board Troubleshooting ........... ... ..................................................................... 2-16
2.5 USB Troubleshooting ................................. .... ............................................................. 2-19
2.6 SSD Troubleshooting ................................. ............ ...................................................... 2-21
2.7 Keyboard Troubleshooting ................................ ........... ............................................... 2-23
2.8 Touch Pad (Click pad) Troubleshooting .................................................................... .. 2-24
2.9 Display (LCD) Troubleshooting ............................ ....................... ................................2-26
2.10 Optical Disk Drive Troubleshooting: Not used .... .......................... ........................... 2-28
2.11 LAN Troubleshooting . ...................................................................................................... 2-29
2.12 Wireless LAN +Bluetooth Troubleshooting . .................................................................... 2-31
2.13 3G/LTE Troubleshooting ............................................................................ ............... ...... 2-33
2.14 WiGig Troubleshooting : Not used.... ............. .................................................................. 2-36
2.15 Sound Troubleshooting ........................... .................. ....................................................... 2-38
2.16 Memory media (SD Card) Slot Troubleshooting ............................................ .................. 2-40
2.17 Fingerprint sensor Troubleshooting .... ...................................................... ....................... 2-41
2.18 Web camera Troubleshooting ...................... ................................................................. .... 2-44
2.19 HDMI port Troubleshooting .... ........................................................ ................................ 2-45
2.20 USB Type-C adapter Troubleshooting .... ......................................... ................................ 2-47

viii [CONFIDENTIAL] dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)
Chapter 3 Tests and Diagnostics
3.1 Test program for maintenance.............................. ................................................................. 3-1
3.2 How to execute the test program . ....... .................................................................................. 3-3
3.3 Entry of the DMI information ......................... ..................................................................... 3-6
3.4 Heatrun Test ................................................. ............ ............................................................ 3-8
3.5 Main Test Menu ............. ...................................................... ................................................. 3-9
3.6 Memory Test ..................................................................... ........... ....................................... 3-12
3.7 Hard disk/SSD Test ............................................................... ................ ............................. 3-13
3.8 Keyboard Test ....................................................................................... ........... ................... 3-16
3.9 LCD Panel Test ............................................................................................... .......... ......... 3-17
3.10 Battery Charge Test ............................................................................................... .......... . 3-19
3.11 FAN Test....... ............ ........................................................................................................ 3-20
3.12 Log Utility ................ ........ ................................................................................................ 3-21
3.13 LCD Gamma correction..................................................................................................... 3-22
3.14 Wireless Module Test ................... .................................................................................... 3-26
3.15 Sound Test.............................................. ............... ............................................................ 3-29
3.16 SETUP .. ........................................................................ .................................................... 3-30
3.17 Battery Off mode setting tool................................................ ............................................ 3-49

dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931) [CONFIDENTIAL] ix
Chapter 4 Replacement Procedures
4.1 Overview ................................................................................................................... .......... . 4-1
4.2 Micro SD Card ...................................................................................................... ........... ... 4-14
4.3 SIM Card ................................................................................................................ .......... .. 4-15
4.4 Smart Card ............................................................................................................. ........... .. 4-17
4.5 BASE ASSY .......................................................................................................... ........... .. 4-19
4.6 BATTERY PACK.................................................................................................. ........... .. 4-23
4.7 MEMORY MODULE ........................................................................................... ........... .. 4-27
4.8 SMART CARD SLOT ............................................................................................ .......... . 4-29
4.9 SPEAKER ................................................................................................................ .......... 4-32
4.10 FAN ......................................................................................................................... ......... 4-36
4.11 LTE MODULE ...................................................................................................... .......... . 4-38
4.12 USB BOARD/LTE BOARD .................................................................................. ......... . 4-40
4.13 W-LAN MODULE .............................................................................................. ......... .... 4-44
4.14 HEAT SINK ........................................................................................................ ........ ..... 4-46
4.15 SYSTEM BOARD .................................................................................................. ........ . 4-48
4.16 SSD ....................................................................................................................... ......... ... 4-56
4.17 KEYBOARD ......................................................................................................... ......... .. 4-58
4.18 CLICK PAD ........................................................................................................... ........ .. 4-66
4.19 LCD FAT ASSY/COVER ASSY .......................................................................... ........ .. 4-68
4.20 LCD ........................................................................................................................ ........ .. 4-73
4.21 HINGE ASSY ....................................................................................................... ......... ... 4-82
4.22 W-LAN ANTENNA/LTE ANTENNA ................................................................ ......... ... 4-85
4.23 MIC BOARD/CAMERA MODULE .................................................................... ........ ... 4-92

x [CONFIDENTIAL] dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)
Appendices
Appendix A Handling the LCD Module ........................................................................... A-1
Appendix B Board Layout ................................................................................................ B-1
Appendix C Pin Assignments ........................................................................................... C-1
Appendix D Keyboard Matrix ........................................................................................... D-1
Appendix E Key Layout .................................................................................................... E-1
Appendix F Wiring Diagrams ............................................................................................ F-1
Appendix G BIOS rewrite Procedures .............................................................................. G-1
Appendix H EC/KBC rewrite Procedures ......................................................................... H-1
Appendix I Reliability ........................................................................................................ I-1

Chapter 1
Hardware Overview

1 Hardware Overview
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1 Hardware Overview
dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)[CONFIDENTIAL] 1-iii
Chapter 1 Contents
1.1 Features ...................................................................................................................... 1-1
1.2 SSD ............................................................................................................................ 1-9
1.3 Keyboard .................................................................................................................. 1-14
1.4 TFT Color Display ................................................................................................... 1-18
1.5 Web camera ............................................................................................................. 1-20
1.6 Power Supply ........................................................................................................... 1-21
1.7 Batteries ................................................................................................................... 1-22
1.7.1 Main Battery ....................................................................................... 1-22
1.7.2 Battery Charging Control ................................................................... 1-23
1.8 AC Adapter .............................................................................................................. 1-25
1.9 USB Type-C Adapter .............................................................................................. 1-28

1 Hardware Overview
1-iv [CONFIDENTIAL] dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)
Figures
Figure 1-1 Appearance and each unit position .................................................................... 1-1
Figure 1-2 Board connection diagram .................................................................................. 1-3
Figure 1-3 System block diagram ......................................................................................... 1-4
Figure 1-4 UK keyboard layout ........................................................................................... 1-14
Figure 1-5 LCD module ....................................................................................................... 1-18
Tables
Table 1-1 M.2 SATA SSD specifications ............................................................................ 1-9
Table 1-2 M.2 PCIe SSD specifications ............................................................................ 1-11
Table 1-3 Keyboard specifications ..................................................................................... 1-14
Table 1-4 LCD module specifications ................................................................................ 1-18
Table 1-5 Web camera module specifications .................................................................... 1-20
Table 1-6 Battery specifications ......................................................................................... 1-22
Table 1-7 Time required for charges .................................................................................. 1-23
Table 1-8 Data preservation time ....................................................................................... 1-24
Table 1-9 AC adapter specifications................................................................................... 1-25
Table 1-10 USB Type-C adapter specifications ................................................................. 1-28

1 Hardware Overview
dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)[CONFIDENTIAL] 1-1
1.1 Features
This Personal Computer uses extensive Large Scale Integration (LSI), and Complementary
Metal-Oxide Semiconductor (CMOS) technology extensively to provide compact size,
minimum weight, low power usage and high reliability.
The following shows each unit position and system unit configuration of this model.
 Front view
Figure 1-1 Appearance and each unit position (1)

1 Hardware Overview
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 Left side
 Right side
 Underside
Figure 1-1 Appearance and each unit position (2)

1 Hardware Overview
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Figure 1-2 Board connection diagram

1 Hardware Overview
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Figure 1-3 System block diagram

1 Hardware Overview
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This computer incorporates the following features/major components. The configuration
depends on the model. Refer to the Parts List for the configuration of each model and options.
 Microprocessor
This chip incorporates the CPU, chipset and graphics functions in it. The PC comes with
one of the following CPU:
< PSZ1* model >
Core Frequency L3 Cache Size Turbo Number of cores
/threads
Kabylake-R U Core i7-8650U
(1.90GHz) vPro 8MB 4.20GHz 4/8
Kabylake-R U Core i7-8550U
(1.80GHz) non-vPro 8MB 4.00GHz 4/8
Kabylake-R U Core i5-8350U
(1.70GHz) vPro 6MB 3.60GHz 4/8
Kabylake-R U Core i5-8250U
(1.60GHz) non-vPro 6MB 3.40GHz 4/8
Kabylake-R U Core i3-8130U
(2.20GHz) non-vPro 4MB 3.40GHz 2/4
Kabylake-R U Core i3-7020U
(2.30GHz) non-vPro 3MB - 2/4
Kabylake-R U Celeron 3867U
(1.80GHz) non-vPro 2MB - 2/2
Kabylake-U Core i3-7020U
(2.30GHz) non-vPro 3MB - 2/4
< PSZ2* model >
Core Frequency L3 Cache Size Turbo Number of cores
/threads
Cometlake U Core i7-10810U
(1.10GHz) vPro 6+2 12MB 4.90GHz 6/12
Cometlake U Core i7-10610U
(1.80GHz) vPro 4+2 8MB 4.90GHz 4/8
Cometlake U Core i7-10710U
(1.10GHz) 6+2 12MB 4.70GHz 6/12
Cometlake U Core i7-10510U
(1.80GHz) 4+2 8MB 4.90GHz 4/8
Cometlake U Core i5-10310U
(1.70GHz) vPro 4+2 6MB 4.40GHz 4/8
Cometlake U Core i5-10210U
(1.60GHz) 4+2 6MB 4.20GHz 4/8

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Cometlake U Core i3-10110U
2F+2 2MB - 2/2
Cometlake U Celeron 5205U
2F+1 (1.90GHz) 2MB - 2/2
< PSZ3* model >
Core Frequency L3 Cache Size Turbo Number of cores
/threads
Tigerlake Core i7-1185G7 vPro TBD TBD TBD
Tigerlake Core i7-1165G7 Non-
vPro 12MB 4.70GHz 4/8
Tigerlake Core i5-1145G7 vPro TBD TBD TBD
Tigerlake Core i5-1135G7 Non-
vPro 8MB 4.20GHz 4/8
Tigerlake Core i3-1115G4 6MB 4.10GHz 2/4
Tigerlake Celeron 6305
(1.80GHz) 4MB - 2/2
 Memory
The specification of each model is as below.
PSZ1* model PSZ2* model PSZ3* model
Type Memory
size
Spec Memory
size
Spec Memory
size
Spec
On-board 0/4/8GB DDR4
2133/
DDR4
2400MHz
0/4/8GB DDR4
2666MHz
0/4/8GB DDR4
3200MHz
Memory
slot 4/8/16GB 4/8/16GB 4/8/16/32GB
 SSD
The computer supports M.2 SSD of SATA I/F or PCIe I/F. One of the following is
mounted depending on a model.
< PSZ1* and PSZ2* model >
• 128GB, 256GB (for SATA I/F)
• 128GB, 256GB, 512GB, 1TB (for PCIe I/F)
< PSZ3* model >
• 128GB, 256GB, 512GB (for PCIe I/F)
Rev.02
Rev.02
Rev.02