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dynabook TECRA A50-J Manual

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March 11
, 2022
th
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
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
TECRA A50-J, SATELLITE PRO A50-J/R50-J
Tools Required
In order to remove internal components of the
from the list below may be required located in Chapter 4 Replacement Procedures of the Dynabook
Maintenance Manual
For your safety and the safety of the people around you, it is important that you use Electrostatic
Discharge (ESD) equipment. Correctly utilizing of the equipment increases the percentage of
successful repairs and saves on the cost of damaged or destroyed parts. The following equipment is
required for disassembly and assembly.
One Philips screwdriver with type 0 bit (for S-THIN HEAD screws)
■
One Philips screwdriver with type 1 bit (for screws other than above)
■
One flat-blade screwdriver (for removing the CPU)
■
Tweezers (for lifting screws)
■
ESD mats (lay on work table or floor)
■
An ESD wrist strap and heel grounder
■
Anti-static carpet or flooring
■
Air-ionizers in highly static sensitive areas
■
Antenna coaxial cable disconnector
■
Special syringe (for applying grease)
■
Table of Contents
• (Page 2-4) Removing the Lithium Ion Battery (Main Battery, No coin cell battery)
• (Page 5) Removing the SSD
• (Page 6-46) LCD, Printed Circuit / Wiring Boards (PCB/ PWB system board)
• (Page 47-48) AC Adapter and external provide cable
TECRA A50-J, SATELLITE PRO A50-J/R50-J
Series Maintenance Manual.
TECRA A50-J, SATELLITE PRO A50-J/R50-J
some tools

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Summary of Contents for dynabook TECRA A50-J

  • Page 1 TECRA A50-J, SATELLITE PRO A50-J/R50-J some tools from the list below may be required located in Chapter 4 Replacement Procedures of the Dynabook Maintenance Manual For your safety and the safety of the people around you, it is important that you use Electrostatic Discharge (ESD) equipment.
  • Page 2 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 4.11 of the TECRA A50-J, SATELLITE PRO A50-J/R50-J Maintenance Manual. Some tools are required in order to remove this component.
  • Page 3 Figure 4-5 Removing the Base Assembly (2) Base Assembly Cover Assembly 4.12.1 Removing the Battery pack To remove the battery pack, follow the steps below and refer to Figure 4-7 Figure 4-8. Take care not to short circuit the terminals when removing the battery pack. Similarly, do not drop, knock, scratch, disassemble, twist, or bend the battery pack.
  • Page 4 Figure 4-7 Releasing the battery pack (1) CN8021 S2x4CT Battery Harness 3. Disconnect the BATTERY HARNESS from the connector on the battery pack. Figure 4-8 Releasing the battery pack (2) Battery Harness Battery Dispose of the used/removed battery pack in accordance with the laws and ordinances of your local authority.
  • Page 5 2.Removing the SSD To remove the SSD, follow the steps below and refer to Figure 4-11. Take care not to press on the top or bottom of a SSD. Pressure may cause the data loss or damage to the device. 1.
  • Page 6 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.

  • Page 7: Cover Assembly And Base Assembly

    4.11 Cover Assembly and Base Assembly 4.11.2 Removing the Cover Assembly and Base Assembly To remove the Base Assembly, follow the steps below and refer to Figure 4- 4 Figure 4-5. 1. Close the display panel and turn the computer face down. 2.
  • Page 8 Figure 4-5 Removing the Base Assembly (2) Base Assembly Cover Assembly 4.11.3 Installing the Base Assembly To install the Base Assembly, follow the steps below and refer to Figure 4-4 Figure 4-6. 1. Set the Cover Assembly on the Base Assembly while securing the latches.
  • Page 9 2. Secure the Cover Assembly and Base Assembly with the screws. When securing the Base Assembly, be sure to drive the screws in the order of the number on Figure 4-4. 3. Turn the computer, and open the display.

  • Page 10: Battery Pack

    4.12 Battery pack 4.12.1 Removing the Battery pack To remove the battery pack, follow the steps below and refer to Figure 4-7 Figure 4-8. Take care not to short circuit the terminals when removing the battery pack. Similarly, do not drop, knock, scratch, disassemble, twist, or bend the battery pack. 1.
  • Page 11 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 clean with a dry cloth.

  • Page 12: Memory Module

    4.13 Memory module 4.13.1 Removing the Memory module To remove the memory module, follow the steps as detailed below: Do not touch the connectors on the memory module or on the computer. Dust or stains on the connectors may cause memory access problems. Never press hard or bend the memory module.
  • Page 13 Figure 4-10 Seating the memory module After installing the memory module, make sure that the memory module is secured with the left and right latches. 4.14 SSD 4.14.2 Removing the SSD To remove the SSD, follow the steps below and refer to Figure 4-11.
  • Page 14 Figure 4-11 Removing the SSD CN1900 S2x3.5BT 4.14.3 Installing the SSD To install the SSD, follow the steps below and refer to Figure 4-12. To avoid damage, always hold the SSD only by its sides. To prevent the SSD from being distorted when installing the SSD pack into the computer, do not press the center of the SSD pack.

  • Page 15: Smart Card Slot

    4.15 Smart Card slot 4.15.1 Removing the Smart Card slot To remove the Smart Card slot unit, follow the steps below and refer to Figure 4-13 Figure 4-16. 1. Disconnect the FPC/FFC from the connector CN9600 on the SYSTEM board and CN9640 on the USB board. Figure 4-13 Removing the Smart Card slot (1) CN9600 CN9640...
  • Page 16 4. Remove the following screw and peel off the AL TAPE. Then slide and lift the Smart Card slot unit shown in the following figure to remove the Smart Card slot. Figure 4-15 Removing the Smart Card slot (3) CN2170 S2x2BT Smart Card Slot FFC Smart C rd Slot...
  • Page 17 2. Set the Smart Card slot in place and secure it the with the screw. 3. Connect the Smart Card FFC to the connector CN2170 on the system board. 4. Stick the AL TAPE and INSU CUSHION SC in place. 5.

  • Page 18: Wireless Lan Card

    4.16 Wireless LAN card 4.16.1 Removing the Wireless LAN card To remove the Wireless LAN card, follow the steps below and refer to Figure 4-17. 1. Peel off the INSU SQUARE. 2. Disconnect the Wireless LAN antenna cable from the connector on the Wireless LAN card (black cable from “AUX or “1”...
  • Page 19 (black cable to “AUX” or “1” and white cable to “Main” or “2”) on the Wireless LAN card. 4. Arrange the Wireless LAN antenna cables and stick the tape on the Cover Assembly. 5. Stick a new INSU SQUARE in place.
  • Page 20 4.17 3G module 4.17.1 Removing the 3G module To remove the 3G module, follow the steps below and refer to Figure 4-18. 1. Peel off the INSU SQUARE. 2. Disconnect the 3G ANTENNA cables from the connectors on the 3G MODULE. (red tube from “MAIN”) 3.
  • Page 21 Figure 4-19 Installing the 3G module INSU SQUARE 4.18 Fans 4.18.1 Removing the Fans To remove the Fans, follow the steps below and refer to Figure 4-20. 1. Disconnect the Fan harness from the connector CN3380 and CN3390 on the System Board (FMERSY*). 2.
  • Page 22 1. Set the Fans in place on the Cover Assembly and secure them with the screws. 2. Connect the Fan harness to the connector CN3380 and CN3390 on the System Board (FMERSY*). 4.19 Fin 4.19.1 Removing the Fin To remove the Fin, follow the steps below and refer to Figure 4-21.
  • Page 23 4.20 Click pad 4.20.1 Removing the Click pad To remove the click pad, follow the steps below and refer to Figure 4-22 Figure 4-23. 1. Disconnect the Click Pad FFC and Fingerprint FFC from the connectors on the Click Pad and the connectors CN9510 and CN9550 on the System Board.
  • Page 24 1. Stick the Click Pad Mylar to a new Click Pad. 2. Peel off the separator on the Click Pad RIM ASSY and stick the new Click Pad to the Cover Assembly. Figure 4-24 Installing the Click pad 3. Stick the gasket tape to the Click pad and stick the square cushion. 4.
  • Page 25 Figure 4-25 Removing the Speaker (1) Speaker 4. Remove the Speaker from the Cover Assembly. Figure 4-26 Removing the Speaker (2) Speaker Speaker 4.21.2 Installing the Speaker To install the Speaker, follow the steps below. 1. Set the speakers to the Cover Assembly in place. 2.
  • Page 26 Figure 4-27 Installing the Speaker CN6290 Speaker Harness (For LTE models) When replacing the speaker with a new one, stick one piece of Gasket on the speaker in place. Gasket 4.22 3G antennas 4.22.1 Removing the 3G antennas To remove the 3G antennas, follow the steps below. 1.
  • Page 27 Figure 4-28 Removing the 3G antennas (1) INSU 3G antenna cable 3G antenna cable SAR Harness CN2650 4. Peel off the 3G antennas from the Cover Assembly. Figure 4-29 Removing the 3G antennas (2) 3G antenna (Aux) 3G antenna (Main) Do not reuse the removed 3G antennas.

  • Page 28: System Board

    4.23 System board If replacing with a new system board, update the DMI information as described in Chapter 3, Diagnostics. Also update with the Tests and latest BIOS and EC/KBC as described in Appendix G, BIOS Rewrite Procedures, and Appendix H, EC/KBC Rewrite Procedures.
  • Page 29 Figure 4-31 Removing the system board (2) CN5930 CN8001 3. Remove the following the screws. Carefully lift up the system board. Figure 4-32 Removing the system board (3) S2 x 4CT...
  • Page 30 4.23.2 Installing the System board When replacing the system board with a new one, stick eight pieces of new GUM CUSHION and one piece of new CUSHION LED on the system board in place. CUSHION LED To install the system board, follow the steps below and refer to Figure 4- 30 Figure 4-33.

  • Page 31: Usb Board

    4.24 DC IN jack 4.24.1 Removing the DC IN jack To remove the DC IN jack, follow the steps below and refer to Figure 4-34. 1. Release three screws securing the right display hinge and rotate the display hinge to upright position. 2.
  • Page 32 Figure 4-35 Removing the USB board 4.25.2 Installing the USB board To install the USB board (FMERLT*), follow the step below and refer to Figure 4-35. When replacing the USB board with a new one, stick two pieces of GUM CUSHION on the USB board in place.
  • Page 33 As the keytop may fall out, when handling the keyboard, always hold it by the frame and do not touch the key top. 1. Release the following screws and separate the LCD Assembly and Keyboard/Cover Assembly. Figure 4-36 Removing the Keyboard/Cover Assembly F2.5x5BT LCD Assembly Keyboard/Cover Assembly...
  • Page 34 Stick three pieces of GASKET on the cover assembly in place. ■ (For LTE models) Stick the one piece of AL Tape on the ■ cover assembly in place. (For LTE models) Stick two piece of D TAPE on the cover ■...

  • Page 35: Lcd Assembly

    Stick the INSU KB on the cover assembly in place. ■ 4.27 LCD Assembly 4.27.1 Removing the LCD unit To remove the LCD unit, follow the steps below and refer to Figure 4-37 Figure 4- 1. Detach the LCD mask from the top side of the LCD cover first. Release the latches from the second one (on the left as marked in the following figure) to the right.
  • Page 36 Figure 4-37 Removing the LCD unit (1) Do not lift the LCD mask too much from the LCD covers when detaching the LCD mask. 3. Remove the LCD mask. The Web Camera Shutter is attached to the LCD mask by magnet. Please be care not to lose it during removing the LCD mask.
  • Page 37 Figure 4-38 Removing the LCD unit (2) 6. Take out the LCD unit. Be careful that the LCD/Webcam harness is connected to the connector on the back of the LCD unit. 7. Peel the pull tape and disconnect the LCD/Webcam harness from the connector on the LCD unit.
  • Page 38 To install the LCD unit, follow the steps below. 1. Connect the LCD/Webcam harness to the connector on the LCD unit and secure it with the pull tape and glass tape. When connect the LCD harness, make sure to connect the right and left side at the same time as shown in the figure below.
  • Page 39 4. Set the LCD unit in place. 5. Arrange the LCD/Webcam harness under the guides of the LCD cover. Figure 4-41 Installing the LCD unit (2) 6. Remove the separators on the top and bottom side of the LCD mask. When replacing the LCD mask with a new one, Stick the CAMERA PANEL on the LCD mask in place and remove the separator on it.

  • Page 40: Display Hinges

    8. Set the LCD mask on the LCD cover while engaging all the latches. Figure 4-43 Installing the LCD unit (4) 4.28 Display hinges 4.28.1 Removing the display hinges To remove the display hinges, follow the steps below and refer to Figure 4- 1.
  • Page 41 Figure 4-44 Removing the display hinges...
  • Page 42 4.28.2 Installing the display hinges To install the display hinges, follow the steps below and refer to Figure 4- 1. Set the left & right hinges and secure them with the screws. 4.29 Wireless LAN antennas 4.29.1 Removing the Wireless LAN antennas To remove the Wireless LAN antennas, follow the steps below.

  • Page 43: Camera Module

    Figure 4-46 Arranging the Wireless LAN antenna cables 4.30 Camera module 4.30.1 Removing the Camera module To remove the camera module, follow the steps below and refer to Figure 4-47 Figure 4-48. 1. Disconnect the camera FPC from the connector on the camera module and peel off the FPC from the LCD cover.
  • Page 44 Figure 4-48 Removing the camera module (2) Camera Module Do not reuse the removed camera module. Be sure to use new camera module.
  • Page 45 4.30.2 Installing the Camera module When replacing the LCD cover with a new one: Stick six pieces of CUSHION on the LCD cover in place for models with LCD module G33C000A4110, G33C000A6110 or G33C000A7110. Stick two pieces of Gasket on the LCD cover in place for models with LCD module G33C000AM110 or G33C0009U110.
  • Page 46 Figure 4-49 Installing the Camera module (1) 5. Arrange the LCD/Webcam harness to the guides on the LCD cover. 6. (For some models) Stick the SQUARE CUSHION to the LCD cover. For models with LCD module G33C0009U110 or G33C000AM110, ■ please use SQUARE CUSHION GM9044309111.
  • Page 47 AC Adapter, External cables provided with the AC adapter and USB cables The AC adapter as well as all external cables provided with the notebook including the AC adapter cables and USB cables should be segregated and sent for shredding. The following components contained within the AC adapter potentially contain hazardous substances and require special handling: Printed Circuit Board >10 cm...
  • Page 48 Conventional type AC adapter AC Adapter with casing removed AC adapter printed circuit board AC adapter capacitor...

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