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Service Manual - NEC Versa 2600 Series Laptop


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                           NEC Versa 2600 Series

                               Service Guide


                             Art Copy Version




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                     PROPRIETARY NOTICE AND LIABILITY DISCLAIMER


          The information disclosed in this document, including all designs and related materials, is
          the valuable property of NEC Computer Systems Division, Packard Bell NEC, Inc.
          (NECCSD, PBNEC) and/or its licensors. NECCSD and/or its licensors, as appropriate, re-
          serve all patent, copyright and other proprietary rights to this document, including all de-
          sign, manufacturing, reproduction, use, and sales rights thereto, except to the extent said
          rights are expressly granted to others.
          The NECCSD product(s) discussed in this document are warranted in accordance with the
          terms of the Warranty Statement accompanying each product. However, actual
          performance of each such product is dependent upon factors such as system configuration,
          customer data, and operator control. Since implementation by customers of each product
          may vary, the suitability of specific product configurations and applications must be
          determined by the customer and is not warranted by NECCSD.
          To allow for design and specification improvements, the information in this document is
          subject to change at any time, without notice. Reproduction of this document or portions
          thereof without prior written approval of NECCSD is prohibited.

          NEC is a registered trademark of NEC Corporation;
          Versa is a U.S. registered trademark of NEC Technologies, Inc.;
          all are used under license by NEC Computer Systems Division (NECCSD), Packard Bell NEC, Inc.
          All other product, brand, or trade names used in this publication are the trademarks or registered
             trademarks of their respective trademark owners.




                                            First Printing -- May 1997

                                             Copyright 1997
                           NEC Computer Systems Division, Packard Bell NEC, Inc.
                                      1414 Massachusetts Avenue
                                        Boxborough, MA 01719
                                          All Rights Reserved


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                                                                                                                                                iii

          Contents

          Preface......................................................................................................................... ix
          Abbreviations............................................................................................................... xi


          Section 1         Technical Information
          Hardware Overview -- Front.......................................................................................1-2
              Liquid Crystal Display (LCD)................................................................................1-2
              Power Button .......................................................................................................1-4
              Power and Status LEDs ........................................................................................1-4
              Keyboard ..............................................................................................................1-5
              NEC VersaGlide ...................................................................................................1-5
              CD-ROM Reader and Diskette Drive ....................................................................1-6
          Hardware Overview -- Right Side ...............................................................................1-6
              PC Card Slots .......................................................................................................1-7
              Kensington Lock...................................................................................................1-7
          Hardware Overview -- Left Side .................................................................................1-7
          Hardware Overview -- Rear........................................................................................1-8
              Infrared Port .........................................................................................................1-8
              Keyboard/Mouse Port ...........................................................................................1-8
              Expansion Port .....................................................................................................1-8
              Monitor (Video) Port ............................................................................................1-8
              Parallel Port (LPT1)..............................................................................................1-8
              Serial Port (COM1) ..............................................................................................1-9
              AC/DC Power Port ...............................................................................................1-9
          Hardware Overview -- Internal Components ...............................................................1-9
              Battery Pack .........................................................................................................1-9
              Hard Disk Drive....................................................................................................1-10
              Diskette Drive.......................................................................................................1-10
              10x CD-ROM Reader ...........................................................................................1-10
              CPU Board ...........................................................................................................1-11
              Sound Board.........................................................................................................1-12
              I/O Board .............................................................................................................1-13
              Bridge Battery ......................................................................................................1-13
          System Memory...........................................................................................................1-14
              Memory Map ........................................................................................................1-14
          System Video...............................................................................................................1-15




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          iv     Contents


          Parallel Interface ..........................................................................................................1-15
          Serial Interface.............................................................................................................1-16
          NEC Versa Chip Set ....................................................................................................1-16
              Intel Pentium P55CLM Microprocessor ................................................................1-16
              256K X Flash ROM ..............................................................................................1-16
                    ROM BIOS....................................................................................................1-17
              VGA Controller ....................................................................................................1-17
              Keyboard Controller .............................................................................................1-18
              PC Card Controller ...............................................................................................1-18
              Sound Integrated Circuit .......................................................................................1-18
              Interrupt Controllers .............................................................................................1-19
          Power Management Overview .....................................................................................1-20
              System Power Management ..................................................................................1-21
              Local Power Management.....................................................................................1-21
          Plug and Play...............................................................................................................1-21
          Specifications...............................................................................................................1-22


          Section 2        Setup and Operation
          Unpacking the System..................................................................................................2-1
          Hardware Setup ...........................................................................................................2-1
              Cable Connections ................................................................................................2-3
          Power Sources.............................................................................................................2-4
              Using the AC Adapter...........................................................................................2-4
              Using the Main Battery Pack.................................................................................2-5
                   Installing the Battery Pack..............................................................................2-5
                   How to Recharge the Battery Pack.................................................................2-6
              Battery Handling...................................................................................................2-6
                   Replacing the Battery Pack ............................................................................2-7
              Battery Life...........................................................................................................2-8
                   Extending Battery Life ...................................................................................2-8
                   Battery Charging............................................................................................2-9
                   Battery Precautions........................................................................................2-9
                   Battery Disposal.............................................................................................2-10
              Internal Batteries...................................................................................................2-10
              Extending Battery Life ..........................................................................................2-10
          Operating Controls ......................................................................................................2-11
              Status Icons and LEDs..........................................................................................2-12




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                                                                                                                        Contents           v


                  Status Icons ...................................................................................................2-12
              Function Keys (Fn Keys).......................................................................................2-13
                  Updating the System BIOS ............................................................................2-13
          Power-On Self -Test (POST) .......................................................................................2-14
              POST Errors.........................................................................................................2-15
          Setup Utility ................................................................................................................2-16
              Setup Utility..........................................................................................................2-17
                  How to Enter Setup .......................................................................................2-17
                  How to Use Setup..........................................................................................2-17
                  The Setup Screen...........................................................................................2-17
              Using Keys ...........................................................................................................2-18
                  Checking/Setting System Parameters..............................................................2-19
              Using Power Management ....................................................................................2-25
                  Power Saving Modes .....................................................................................2-25
                  Power Management Settings ..........................................................................2-26
                  Using Fn-F3 ...................................................................................................2-26


          Section 3        Troubleshooting
          Quick Troubleshooting ................................................................................................3-1
          Helpful Questions ........................................................................................................3-4


          Section 4        Field Service Guidelines
          Preventive Maintenance ...............................................................................................4-1
              Cleaning the Notebook Exterior ............................................................................4-2
              Cleaning the Notebook Interior .............................................................................4-2
              Protecting the Disk Drives ....................................................................................4-2
              Handling the Battery Packs ...................................................................................4-3
              Maintaining the LCD Quality ................................................................................4-3
          Disassembly and Reassembly........................................................................................4-4
              Required Tools and Equipment ............................................................................4-5
              Battery Pack .........................................................................................................4-5
              Hard Disk Drive....................................................................................................4-6
              Keyboard ..............................................................................................................4-7
              Heat Shield and CPU Board..................................................................................4-9
              LCD and Top Cover .............................................................................................4-11
              VersaGlide Assembly ............................................................................................4-13
              Sound Board.........................................................................................................4-14




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          vi     Contents


               LED Status Board and IR Board...........................................................................4-14
               10X CD-ROM Reader and Heat Shield .................................................................4-14
               Bridge Battery and Diskette and Hard Drive Connector Board..............................4-16
               Diskette Drive.......................................................................................................4-17
               Power Board.........................................................................................................4-18
               Main Board...........................................................................................................4-18
               Reassembly ..........................................................................................................4-18
          Illustrated Parts Breakdown.........................................................................................4-18
          Service Information......................................................................................................4-22
          Technical Support ........................................................................................................4-22
          Product Information.....................................................................................................4-23
          Ordering Information from FaxFlash ............................................................................4-23


          Appendix A Connector Locations and Pin Assignments


          Appendix B Video Modes


          List of Figures
          1-1         NEC Versa 2600 Series Notebook .................................................................                    1-1
          1-2         Front View.....................................................................................................     1-3
          1-3         Keyboard Layout ...........................................................................................         1-5
          1-4         VersaGlide Location ......................................................................................          1-6
          1-5         Right Side Features ........................................................................................        1-6
          1-6         Left Side Features ..........................................................................................       1-7
          1-7         Rear Features.................................................................................................      1-8
          1-8         CPU Board Layout ........................................................................................          1-11
          1-9         Sound Board Layout ......................................................................................          1-12
          1-10        I/O Board ......................................................................................................   1-13

          2-1         AC Adapter ...................................................................................................      2-1
          2-2         Powering On the System ................................................................................             2-2
          2-3         Power and I/O Connector Locations ..............................................................                    2-3
          2-4         NEC Versa AC Adapter.................................................................................               2-4
          2-5         Battery Release Latch ...................................................................................           2-7
          2-6         Inserting Battery Pack....................................................................................         2-8
          2-7         Panel LEDs and Controls ...............................................................................            2-11




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                                                                                                                 Contents          vii


          2-8     Status Icons ................................................................................................... 2-12

          4-1     Releasing the Battery Pack.............................................................................         4-5
          4-2     Removing the Hard Disk Drive (Step1) ..........................................................                 4-6
          4-3     Removing the Hard Disk Drive (Step 2) .........................................................                 4-6
          4-4     Removing the Hard Disk Drive (Step 3) .........................................................                 4-7
          4-5     Removing the Keyboard.................................................................................          4-8
          4-6     Removing the Heat Sink/Shield Subassembly .................................................                     4-9
          4-7     Removing the CPU Board..............................................................................           4-10
          4-8     Removing the LCD Assembly (Step 1) ...........................................................                 4-11
          4-9     Removing the LCD Assembly (Step 2) ...........................................................                 4-12
          4-10    Disconnecting VersaGlide Cables ...................................................................            4-13
          4-11    Removing the CD-ROM Reader.....................................................................                4-15
          4-12    Removing the CD-ROM Reader Assembly Screws.........................................                            4-15
          4-13    Removing the Bridge Battery and Diskette and Hard Drive Connector Board.                                       4-17
          4-14    NEC Versa 2600 Series Illustrated Parts Breakdown......................................                        4-19

          A-1     CPU Board Layout ........................................................................................ A-1
          A-2     Main Board Layout ........................................................................................ A-2
          A-3     Sound Board Layout ...................................................................................... A-3


          List of Tables
          1-1     Model Configurations NEC Versa 2600 Series............................................... 1-2
          1-2     Memory Map ................................................................................................. 1-14
          1-3     NEC Versa 2600 Series Chip Types and Technologies ................................... 1-16
          1-4     Interrupt Controllers ...................................................................................... 1-19
          1-5     DMA Channel................................................................................................ 1-20
          1-6     Automatic Power-Saving Features ................................................................. 1-20
          1-7     Specifications................................................................................................. 1-22

          2-1     I/O Connector Descriptions............................................................................          2-3
          2-2     Control and Switch Functions ........................................................................          2-11
          2-3     Fn Key Operations .........................................................................................    2-13
          2-4     POST Error Messages....................................................................................        2-15
          2-5     Setup Key Functions ......................................................................................     2-18
          2-6     Setup Parameters ...........................................................................................   2-19
          2-7     Automatic Power-Saving Features .................................................................              2-26




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          viii   Contents




          3-1      Quick Troubleshooting................................................................................... 3-1

          4-1      NEC Versa 2600 Series Disassembly Sequence .............................................. 4-4
          4-2      NEC Versa 2600 Series Field-Replaceable Parts............................................. 4-20
          4-3      NEC Service and Information Telephone Numbers......................................... 4-22

          A-1      CPU Board Connector ...................................................................................       A-1
          A-2      Main Board Connectors .................................................................................       A-2
          A-3      Sound Board Connectors ...............................................................................        A-3
          A-4      Keyboard/Mouse Connectors .........................................................................           A-3
          A-5      Serial Port Connector Pin Assignments ..........................................................              A-4
          A-6      CRT Connector Pin Assignments ...................................................................             A-4
          A-7      Parallel Printer Pin Assignments .....................................................................        A-5
          A-8      Power Connector ...........................................................................................   A-5
          A-9      Hard Disk Drive Connector............................................................................         A-6

          B-1      LCD Display Mode Setting (800x600 TFT Color LCD
                   and Simultaneous CRT Display)..................................................................... B-1
          B-2      CRT Display Mode (CRT Only)..................................................................... B-3
          B-3      Panning Video Mode (800x600 TFT Color LCD and
                   Simultaneous CRT Display) ........................................................................... B-4




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                                                                                                    ix

          Preface

          This service and reference manual contains the technical information necessary to set up and
          maintain the following NEC Versa



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