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 X40-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
  
  

  Removal of the base assy

  1.) Remove the SD card (optional)
  
  
  2.) Remove the base assembly by removing 8 x F2.5 x 5BT screws
  
  
  3.) Seperate the base assy while releasing the latches with a plectrum !
  
  
  
  
  Removal of the battery pack
  
  
  
  1.) Peel of the insulator (INSU SQUARE) from the battery connector harness
  2.) Disconnect the battery harness from connector CN8021 on the system board
  3.) Remove two F2.5 x 5BT screws
  
  
  
  
  
  Removal of the memory module
  
  1.) Open the left and right latches and remove the memory module
  
  
  
  
  
  Removal of the SSD
  
  
  
  1.) Remove one screw S2 x 3.5BT and disconnect the SSD from connector CN1900 on the system board
  
  
  
  
  
• STEP 2 - Installation of the new part
  

  
  Installing the SSD

  1.) Insert the SSD to the connector CN1900 on the system board
  2.) Push down the SSD and secure it with one screw S2 x 3.5BT
  
  
  
  
  Installing the memory module
  
  1.) Align the notch of the memory module with the notch of the memory slot
  2.) Gently insert the module into the slot with an angle of 30 degree
  3.) Push the module down until the latches on both sides snap into place
  
  
  
  
  Installing the battery pack
  
  
  
  1.) Set the battery pack back to the cover assy
  2.) Fix the battery pack by securing it with two F2.5 x 5BT screws
  3.) Connect the battery harness to connector CN8021 on the system board
  4.) Stick the insulator on top of the connector
  
  
  Installing the base assy
  
  1.) Set the base assy in place while securing the latches
  2.) Secure the base assy with 8 x F2.5 x 5BT screws and keep the screwing order as shown below
  
  
  
  
  
• 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.