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 X40L-K

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
  
  
  1.  Removing the Cover Assembly and Base Assembly
  
  1. Close the display panel and turn the computer face down
  2. Remove the following screws securing the Cover Assembly and the
  Base Assembly
  
  
  3. Turn the computer over and open the display panel, release the latches
  from the lower left of the computer as shown in the figure below.
  
  
  4. Turn the computer again and separate the Base Assembly and Cover
  Assembly as shown in the figure below.
  
  
  
  2.   Removing the Battery pack
  
  1. Disconnect the BATTERY HARNESS from the connector CN8021 on
  the System board.
  2. Remove the following screws and the battery pack.
  
  
  
  
  
  3. Removing the SSD
  
  1. Remove the the following screw and disconnect the SSD from the
  connector CN1900 on the System board.
  
  
  
  
  
• STEP 2 - Installation of the new part
  
  1.  Installing the SSD
  1. Insert the SSD to the connector CN1900 on the System Board.
  2. Push down the SSD and secure it with the screw.
  
  
  2.  Installing the Battery pack
  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.
  3. Stick a new INSU on the connector.
  
  
  3.    Installing the Base Assembly
  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. Turn the computer, and open the display
  
• 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.