dynabook PORTEGE X40-G User manual

March 11th, 2022
Dynabook Laptop Components Classified as Requiring Selective Treatment
Dynabook would like to communicate the method of identifying and removing components
contained in Dynabook notebook products, including but not limited to the Dynabook
Portege X40-G model, that requires selective treatment based on the European WEEE
Directive, Directive 2012/19/EU of the European Parliament and of the Council on waste
electrical and electronic equipment (WEEE).
All of the instructions provided within this letter can be reviewed in greater detail within the
Portege X40-G Series Maintenance Manual.
Tools Required
In order to remove internal components of the Portege X40-G some tools from the list below
may be required located in Chapter 4 Replacement Procedures of the Dynabook
Maintenance Manual
Table of Contents
• (Page 2-3) Removing the Lithium Ion Battery (Main Battery, No
coin cell battery)
• (Page 4-5) Removing the SSD
• (Page 6-7) LCD, Printed Circuit / Wiring Boards (PCB/ PWB system
board)
• (Page 7) AC Adapter and external provide cable

1. Removing the Lithium Ion Battery (Main Battery, No coin cell battery)
Please refer to the information below for instructions regarding the identification and removal of the
lithium ion battery. Further maintenance instructions can be found in section 4.5 of the
Portege X40-G Maintenance Manual. Some tools are required in order to remove this component.
Once removed, these components should be recycled as per local requirements.
To remove the battery, the base assembly must be removed first:

Figure 4-5 Removing the Base Assembly (2)
4.12 Battery pack
4.12.1 Removing the Battery pack
To remove the battery pack, follow the steps below and refer to Figure 4-6.
1. Disconnect the BATTERY HARNESS from the connector CN8021 on the SYSTEM board.
2. Remove the following screws and the battery pack.
Base assembly
Cover Assembly
Latch
Take care not to short circuit the terminals when removing
the battery pack. Similarly, do not drop, knock, scratch,
disassemble, twist, or bendthe battery pack.

2. Removing the SSD
To remove the SSD the mainboard must be removed first.
Please refer to the information listed in section 4.22 of the Portege X40-G Series Maintenance
Manual to check how the mainboard is removed.
Please refer to the information below for the removal of the SSD.
One Philips screwdriver with type 1 bit will be required to remove the screws indicated in the locations
below. Once removed, these components should be recycled as per local requirements.

1. Remove the following screw and disconnect the SSD from the connector CN1910 on the
SYSTEM board.
Figure 4-32 Removing the SSD
SSD
CN1910
S2x3BT

3. Removing the LCD and Printed Circuit / Wiring Boards
Beside the LCD and the main PCB, there are further small PCBs and components which are in the
scope of the WEEE Directive. The removal of these components is described in detail in the
chapter 4 of the associated maintenance manual.
Replacement Procedures

10
CUSHION M
11
F2.5 x 5BT
12
6 2
4.11 Cover Assembly and Base Assembly
4.11.1 Removing the Cover Assembly and Base Assembly
To remove the Base Assembly, follow the steps below and refer to Figure 4-
4 to Figure 4-5.
1. Close the display panel and turn the computer face down.
2. Remove the BOTTOM CUSHION M on the center of the Base
Assembly.
3. Remove the following screws securing the Cover Assembly and the
Base Assembly.
Figure 4-4 Removing the Base Assembly (1)
4. Separate the Base Assembly and Cover Assembly while releasing
the latch.

Base assembly
Cover Assembly
Latch
When securing the Base Assembly, be sure to drive the screws in theorder of the
number on Figure 4-4.
Take care not to short circuit the terminals when removing the battery pack.
Similarly, do not drop, knock, scratch, disassemble, twist, or bendthe battery pack.
Figure 4-5 Removing the Base Assembly (2)
4.11.2 Installing the Base Assembly
To install the Base Assembly, follow the steps below and refer to Figure 4-4
to Figure 4-5.
1. Set the Cover Assembly on the Base Assembly while securing the
latch.
2. Secure the Cover Assembly and Base Assembly with the screws.
3. Stick a new BOTTOM CUSHION M to the Base Assembly.
4. Turn the computer, and open the display.
4.12 Battery pack
4.12.1 Removing the Battery pack
To remove the battery pack, follow the steps below and refer to Figure 4-6.
1. Disconnect the BATTERY HARNESS from the connector CN8021 on
the SYSTEM board.
2. Remove the following screws and the battery pack.

S2x3CT
Dispose of the used/removed battery pack in accordance with the laws and
ordinances of your local authority.
The lithium ion battery pack may explode if not fitted, operated, handled, ordisposed
correctly. Dispose always the used battery pack in accordance with the laws and
ordinances of your local authority.
Use only the batteries approved by Dynabook.
Check the battery’s terminals visually. If they are dirty, wipe them cleanwith a dry
cloth.
Figure 4-6 Releasing the battery pack
4.12.2 Installing the Battery pack
To install the battery pack, follow the steps below and refer to Figure 4-6.
1. Set the battery pack to the COVER ASSY and secure it with the screws.
2. Connect the BATTERY HARNESS to the connector CN8021 on the
SYSTEM board.
4.13 Memory module
4.13.1 Removing the Memory module
To remove the memory module, follow the steps as detailed below: