Particular hardware related problems with a product (product must be in warranty) can be resolved by replacing parts, which customers can remove and replace by themselves. This process is called Customer Replaceable Unit or CRU. A service part, which can be removed and replaced by a customer, is called Customer Replaceable Unit (CRU) service part. Various levels of difficulty, inidicated with a specific CRU Level ID, are available and located in the service parts list.

The following is a list of the various CRU Level ID types:

CRU Level ID 0  -	Not possible (parts, either not to be replaced by the customer or not installed in the dedicated model)
CRU Level ID 1  -	Possible for all customers (simple to replace parts, requiring few or no tools)
CRU Level ID 2  -	Possible for experienced customers (optional parts, which are slightly more difficult to replace)
CRU Level ID 3  -	Possible for B2B customers with helpdesk (requires trained service personnel)

When installing a CRU, dynabook will send the CRU to you. CRU information and general replacement instructions are shipped with your product, and are available from dynabook at any time upon request.

Model specific CRU information
"PORTEGE A30-E/TECRA A30-G,-J"

CRU service part removal and replacement procedure:

This document describes how to perform hardware service maintenance for your Personal Computer. The procedures described in this document are intended to help users to replace faulty Customer Replaceable Units (CRUs).

• STEP 1 - Removal of the defective part
  

  Removing the BASE ASSY

  1.) Click “Start” – “Power” and then click “Shut down” while holding down the SHIFT
  key to turn off the power of the computer.
  2.) Disconnect the AC adapter and other external devices from the computer.
  3.) Turn over the computer.
  4.) Remove the following screws securing the BASE ASSY. 
  M2.5x4B FLAT HEAD screw x4
  M2.5x6B FLAT HEAD screw x7
  5.) Remove the BASE ASSY while releasing the latches.
  
  
  
  Removing the BATTERY PACK
  
  1.) Peel off the INSU SQUARE.
  2.) Disconnect the BATTERY HARNESS from the connector CN8021 on the SYSTEM
  BOARD.
  3.) Remove the following screws and the BATTERY PACK.
• M2.5x4B FLAT HEAD screw x2
  
  
  
  Removing the MEMORY MODULE
  
  1.) Open the left and right latches outside and remove the MEMORY MODULE.
  
  
  Removing the SYSTEM BOARD
  1.) Disconnect the DC-IN HARNESS from the connector CN8001 on the SYSTEM
  BOARD and remove it from the slot of the COVER ASSY.
  
  2.) Disconnect the KB MEMBRANE from the connector CN3240 on the SYSTEM
  BOARD.
  3.) Turn up the INSU PCB GASKET and disconnect the KB BL FPC from the
  connector CN3280 on the SYSTEM BOARD. (back light KB model)
  4.) Release the lock bar and disconnect the LCD HARNESS from the connector
  CN5390 on the SYSTEM BOARD.
  
  5. Remove the following screws and the SYSTEM BOARD.
  
  
  Removing the SSD
  
  1.) Remove the following screw and disconnect the SSD from the connector CN1910 on
  the SYSTEM BOARD.
  
  
• STEP 2 - Installation of the new part
  

  
  Installing the SSD
  1.) Insert the SSD to the connector CN1910 on the SYSTEM BOARD.
  2.) Secure the SSD with the following screw. 
  M2x2.5 FLAT HEAD DANTUKI screw x1

  Installing the SYSTEM BOARD
  1.) Set the SYSTEM BOARD to the COVER ASSY in place and secure it with the
  following screws. 
  M2x3C S-THIN HEAD screw x4
  2.) Connect the DC-IN HARNESS to the connector CN8001 on the SYSTEM BOARD.
  
  3.) Set the DC-IN HARNESS to the slot of the COVER ASSY.
  4.) Connect the KB MEMBRANE to the connector CN3240 on the SYSTEM BOARD.
  5.) Turn up the INSU PCB GASKET and connect the KB BL FPC to the connector
  CN3280 on the SYSTEM BOARD. (back light KB model)
  6.) Close the INSU PCB GASKET.
  7.) Connect the LCD HARNESS to the connector CN5390 on the SYSTEM BOARD
  and fix it with the lock bar.
  
  Installing the MEMORY MODULE
  
  1.) Insert the MEMORY MODULE into the connector slantwise and press it down to
  connect firmly.
  
  2.) When the power of the computer is turned on, the computer checks automatically the
  memory size. Confirm that the new memory is detected correctly.
  3.) If the memory is not detected, check if it is connected correctly.
  
  Installing the BATTERY PACK
  
  1.) Set the BATTERY PACK to the COVER ASSY and secure it with the following
  screws. (4cell model)
  M2.5x4B FLAT HEAD screw x2
  3.) Connect the BATTERY HARNESS to the connector CN8021 on the SYSTEM
  BOARD.
  4.) Stick the INSU SQUARE in place.
  
  Installing the BASE ASSY
  1. Set the BASE ASSY to the COVER ASSY and secure it with the following screws. 
  M2.5x4B FLAT HEAD screw x4 
  M2.5x6B FLAT HEAD screw x7
• STEP 3 - Functional check of the product
  

  Perform a functional check to see, if the unit is working as expected

  
  
  
• APPENDICES

  The appendices describe the following:

  • dynabook hardware removal and installation instructions
    
    
    

  NOTE

Pictures shown are for illustration purpose only. Actual product may vary due to product enhancement or platfrom generation changes.