ملخص المحتوى في الصفحة رقم 1 
                    
                        Hardware Replacement Guide
Lenovo 3000 J Series
Types 8453, 8454, 8455, 8458, 8459, 8460                                                                                                                                                                                                                                                                                                                                                                                                                            
                    
                    ملخص المحتوى في الصفحة رقم 2 
                    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
                    
                    ملخص المحتوى في الصفحة رقم 3 
                    
                           Lenovo 3000 J Series                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
                    
                    ملخص المحتوى في الصفحة رقم 4 
                    
                          First Edition (December 2005)  © Copyright Lenovo 2005.  Portions © Copyright International Business Machines Corporation 2005.  All rights reserved.  U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services are provided with  RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule  contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is  unable to accept this Program under t
                    
                    ملخص المحتوى في الصفحة رقم 5 
                    
                          Contents  Overview  . . . . . . . . . . . . . .v Chapter 2. Replacing hardware . . . . .7  Safety information for replacing CRUs . . . . . .v Removing the cover  . . . . . . . . . . . .7  Safety information for replacing FRUs . . . . . .v Replacing a memory module  . . . . . . . . .8  Additional information resources  . . . . . . .v Replacing a PCI adapter  . . . . . . . . . .10  Tools required  . . . . . . . . . . . . .vi Replacing a keyboard  . . . . . . . . . . .11  Handling static-sensitiv
                    
                    ملخص المحتوى في الصفحة رقم 6 
                    
                        iv Hardware Replacement Guide                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
                    
                    ملخص المحتوى في الصفحة رقم 7 
                    
                          Overview  This guide is intended to be used by customers who are replacing Customer  Replaceable Units (CRUs) as well as trained service personnel who are replacing  Field Replaceable Units (FRUs). In this document, CRUs and FRUs will be referred  to as parts.  Note:  Trained service personnel should refer to the Hardware Maintenance  Manual for parts ordering information.  This guide does not include procedures for all parts. It is expected that cables,  switches, and certain mechanical parts
                    
                    ملخص المحتوى في الصفحة رقم 8 
                    
                          Tools required  To replace some parts in your computer, you might need a flat-blade or Phillips  screwdriver.  Handling static-sensitive devices  Static electricity, although harmless to you, can seriously damage computer  components and parts.  When replacing a part, do not open the static-protective package containing the  new part until the defective part has been removed from the computer and you are  ready to install the new part.  When you handle parts and other computer components, take
                    
                    ملخص المحتوى في الصفحة رقم 9 
                    
                          Chapter 1. Locations  This chapter provides illustrations to help locate the various connectors, controls  and components of the computer. To remove the computer cover, see “Removing  the cover” on page 7.  Locating the connectors on the front of your computer  The following illustration shows the location of connectors on the front of the  computer.         1 USB connector 3 Microphone connector  2 Headphone connector 4 USB connector      © Lenovo 2005. Portions © IBM Corp. 2005. 1   
                    
                    ملخص المحتوى في الصفحة رقم 10 
                    
                          Locating the connectors on the rear of your computer  The following illustration shows the location of connectors on the rear of the  computer.         1 Standard mouse connector 9 Audio line out connector  2 Parallel connector 10 Microphone connector  3 Ethernet connector 11 USB connectors  4 Audio line in connector 12 USB connectors  5 Power cord connector 13 VGA monitor connector  6 Voltage selection switch 14 Serial connector  7 PCI adapter connectors 15 Standar
                    
                    ملخص المحتوى في الصفحة رقم 11 
                    
                          Locating components  The following illustration will help you locate the various components in your  computer.         1 Optical drive 4 Power supply  2 Diskette drive bay 5 PCI adapter connector  3 Memory modules 6 AGP adapter connector      Chapter 1. Locations 3                                                                                                                                                                                                                             
                    
                    ملخص المحتوى في الصفحة رقم 12 
                    
                          Identifying parts on the system board  The system board (sometimes called the planar or motherboard) is the main circuit  board in your computer. It provides basic computer functions and supports a  variety of devices.  The following illustration shows the locations of parts on the system board for  some computer models.         1 Microprocessor and heat sink 11 Front panel connector  2 Microprocessor fan connector 12 Power LED connector  3 Memory connector 1 13 Clear CMOS/Recovery
                    
                    ملخص المحتوى في الصفحة رقم 13 
                    
                          The following illustration shows the locations of parts on the system board for  some computer models.         1 Microprocessor and heat sink 10 SATA IDE connectors  2 Fan connector 11 Clear CMOS/Recovery jumper  3 Memory connector 1 12 Front panel connector  4 Memory connector 2 13 Front USB connectors  5 Power connector 14 Front audio connector  6 Diskette drive connector 15 PCI adapter connectors  7 PATA secondary IDE connector 16 AGP adapter connector  8 PATA 
                    
                    ملخص المحتوى في الصفحة رقم 14 
                    
                        6 Hardware Replacement Guide                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
                    
                    ملخص المحتوى في الصفحة رقم 15 
                    
                            Chapter 2. Replacing hardware    Attention  Do not open your computer or attempt any repair before reading the “Important safety  information” in the Quick Reference that was included with your computer or in the  Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  Reference or HMM, go to http://www.lenovo.com/support.    Note:  Use only the parts provided by Lenovo.  Removing the cover  Important       Turn off your computer and wait 3 to 5 minutes to let the 
                    
                    ملخص المحتوى في الصفحة رقم 16 
                    
                          6.   Remove the two screws at the rear of the computer cover and slide the cover to  the rear to remove.       Replacing a memory module    Attention  Do not open your computer or attempt any repair before reading the “Important safety  information” in the Quick Reference that was included with your computer or in the  Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  Reference or HMM, go to http://www.lenovo.com/support.    This section provides instructions o
                    
                    ملخص المحتوى في الصفحة رقم 17 
                    
                          3.   Remove the two screws at the front of the chassis securing the drive bay  assembly.          4.   Slide the drive bay assembly forward until the drive bay assembly is aligned  with the two slots on the sides of the chassis and remove the drive cables  from the system board. Then pivot the drive bay assembly upward to remove  it completely from the computer.          5.   Remove any parts that might prevent access to the memory connectors.   6.   Remove the memory module being replaced by 
                    
                    ملخص المحتوى في الصفحة رقم 18 
                    
                          7.   Position the replacement memory module over the memory connector. Make  sure that the notch 1on the memory module aligns correctly with the  connector key2 on the system board. Push the memory module straight  down into the memory connector until the retaining clips close.          8.   Align the drive bay assembly with the two slots and rails on the sides of the  chassis, reconnect the drive cables on the system board, and then slide the  drive bay assembly towards the rear of the ch
                    
                    ملخص المحتوى في الصفحة رقم 19 
                    
                          3.   Remove the adapter cover latch and remove the failing adapter.        4.   Remove the adapter from its static-protective package.  5.   Install the adapter into the appropriate connector on the system board.  6.   Install the adapter cover latch and insert the screw that secure the adapter.        7.   Go to “Completing the parts replacement” on page 12. Replacing a keyboard    Attention  Do not open your computer or attempt any repair before reading the “Important safety  information” in
                    
                    ملخص المحتوى في الصفحة رقم 20 
                    
                          3.   Locate the keyboard connector.  Note:  Your keyboard might be connected to a standard keyboard connector  1or a USB connector 2. Depending on where your keyboard is  connected, see “Locating the connectors on the rear of your computer”  on page 2 or “Locating the connectors on the front of your computer” on  page 1.        4.   Disconnect the failing keyboard cable from the computer.  5.   Connect the new keyboard to the appropriate connector on the computer.  6.   Go to “Completing t