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Service Manual - NEC Versa 2000 Series Laptop


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SOLD BY laptopia2005 DO NOT RESELL!!




                         VERSA 2000 (RT1)

          SERVICE AND REFERENCE MANUAL




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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 Corporation (NEC) and/or its licensors. NEC and/or its
          licensors, as appropriate, reserve all patent, copyright and other proprietary rights to this
          document, including all design, manufacturing, reproduction, use, and sales rights thereto,
          except to the extent said rights are expressly granted to others.
          The NEC 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 NEC.
          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 NEC is prohibited.

          FastFacts, and NEC SVGA, are U.S. trademarks of NEC Technologies, Inc.
          All other product, brand, or trade names used in this publication are the trademarks or registered
          trademarks of their respective trademark owners.




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          Preface .............................................................................................................................    vii
          Abbreviations ..................................................................................................................          ix


          Section 1          Technical Information
          Hardware Overview.........................................................................................................               1-2
              Liquid Crystal Display (LCD)..................................................................................                       1-3
              System Board ...........................................................................................................             1-3
              Battery Pack .............................................................................................................           1-4
              CMOS Battery..........................................................................................................               1-4
              Bridge Battery ..........................................................................................................            1-4
              PCMCIA Slots..........................................................................................................               1-4
              Keyboard ..................................................................................................................          1-4
              NEC VersaGlide.......................................................................................................                1-5
          System Memory...............................................................................................................             1-5
              Memory Map............................................................................................................               1-6
          System Video...................................................................................................................          1-7
          Parallel Interface..............................................................................................................        1-11
          Serial Interface.................................................................................................................       1-11
          NEC Versa 2000 Series Chip Set ....................................................................................                     1-11
              System Logic ............................................................................................................           1-12
              Flash ROM ...............................................................................................................           1-12
                    ROM BIOS........................................................................................................              1-12
              Peripheral Controller ................................................................................................              1-13
              VGA Controller........................................................................................................              1-13
                    Video Controller Architecture...........................................................................                      1-13
              Diskette Controller, Serial Interface, Parallel Interface ...........................................                               1-14
              Keyboard Controller.................................................................................................                1-14
              PCMCIA Controller .................................................................................................                 1-14
              I/O Addressing .........................................................................................................            1-15
              Interrupt Controllers .................................................................................................             1-16
          Power Management Overview ........................................................................................                      1-17
              System Power Management .....................................................................................                       1-17
              Local Power Management........................................................................................                      1-17
          Plug and Play...................................................................................................................        1-18
          Specifications ..................................................................................................................       1-19


          Section 2          Setup and Operation




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          Unpacking the System .....................................................................................................                2-1
          Setup ................................................................................................................................    2-1
              Cable Connections....................................................................................................                 2-2
          Operating Controls ..........................................................................................................             2-3
              LEDs.........................................................................................................................         2-4
              Function Keys (Fn Keys)..........................................................................................                     2-5
              CMOS Clear Switch and Keyboard Switch .............................................................                                   2-6
              Smart Power Switch .................................................................................................                  2-7
          Power-on Self-Test (Post) ...............................................................................................                 2-7
              POST Errors .............................................................................................................             2-8
          System Parameters...........................................................................................................              2-9
              Auto Setup................................................................................................................            2-9
              Accessing Auto Setup ..............................................................................................                   2-9
                     Auto Setup Keys ...............................................................................................               2-10
          Auto Setup Parameter Options ........................................................................................                    2-11
              Parameter Descriptions ............................................................................................                  2-12
                     Comms ..............................................................................................................          2-12
                     Drives ................................................................................................................       2-12
                     Keyboard ...........................................................................................................          2-12
                     Power ................................................................................................................        2-13
                     System ...............................................................................................................        2-13
                     Time/Date..........................................................................................................           2-14
          Using Auto Setup to Select Parameters...........................................................................                         2-14
          Security Options ..............................................................................................................          2-15
              System Password......................................................................................................                2-15
                     Using the System Password ..............................................................................                      2-15
              Keyboard Lock Hotkey ............................................................................................                    2-16
          NEC Utilities ...................................................................................................................        2-17
              BIOS Update Utility (BUU).....................................................................................                       2-17
                     Precautions ........................................................................................................          2-17
                     Downloading the Update Utility .......................................................................                        2-18
                     Using the Update Utility ...................................................................................                  2-18
                     Menu Functions.................................................................................................               2-20
          Power Sources .................................................................................................................          2-24
              AC Adapter ..............................................................................................................            2-24
              Battery Power ...........................................................................................................            2-25
                     Recharging the Battery Pack .............................................................................                     2-26




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          Replacing the Battery Pack..............................................................................................          2-26
              Saving Battery Power ...............................................................................................          2-27
          Automatic Power-Saving Features ..................................................................................                2-28
              Power Saving Levels ................................................................................................          2-28
                  Active Mode......................................................................................................         2-28
                  Suspend Mode...................................................................................................           2-28


          Section 3         Illustrated Parts Breakdown


          Appendix A           Connector Locations and Pin Assignments


          List of Figures
          1-1         Versa 2000 Series (Right Side View) ............................................................... 1-1
          1-2         Versa 2000 Series (Left Side View).................................................................. 1-2
          1-3         Versa 2000 Series (Rear View)......................................................................... 1-3

          2-1         Power and I/O Connector Locations .................................................................                    2-2
          2-2         Control and Switch Locations...........................................................................                2-3
          2-3         CMOS Clear and Keyboard Switch Locations .................................................                             2-6
          2-4         Connecting the AC Adapter ..............................................................................              2-25
          2-5         Battery Release Latch Location.........................................................................               2-26
          2-6         Battery Pack Replacement ................................................................................             2-27

          3-1         Illustrated Parts Breakdown .............................................................................. 3-4

          A-1         System Board Connector Locations .................................................................. A-1


          List of Tables
          1-1         Versa 2000 Series Memory Map.......................................................................                    1-6
          1-2         CRT Display Mode (CRT only)........................................................................                    1-7
          1-3         LCD Display Modes (640 x 480 TFT, Simultaneous CRT) .............................                                      1-9
          1-4         LCD Display Modes (640 x 480 DSTN, Simultaneous CRT)..........................                                        1-10
          1-5         Versa 2000 Series Chip Types and Technologies .............................................                           1-11
          1-6         Versa 2000 Series I/O Address Map .................................................................                   1-15
          1-7         Versa 2000 Series Interrupt Level Assignments ...............................................                         1-16
          1-8         Specifications ....................................................................................................   1-19




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          2-1   I/O Connector Descriptions...............................................................................         2-2
          2-2   Control and Switch Functions...........................................................................           2-4
          2-3   FnKey Operations .............................................................................................    2-5
          2-4   POST Error Messages .......................................................................................       2-8
          2-5   Auto Setup Key Functions ................................................................................        2-10
          2-6   Auto Setup Parameter Options..........................................................................           2-11
          2-7   Automatic Power-Saving Features....................................................................              2-28

          3-1   Versa 2000 Series Field-Replaceable Parts....................................................... 3-1
          3-2   Option and Documentation Part Numbers ........................................................ 3-5

          A-1   System Board Connectors ................................................................................. A-1
          A-2   Keyboard/Mouse Connector Pin Assignments ................................................. A-2
          A-3   Serial Port Connector Pin Assignments ............................................................ A-3
          A-4   CRT Connector Pin Assignments ..................................................................... A-3
          A-5   Parallel Printer Pin Assignments....................................................................... A-4
          A-6   Docking Connector Pin Assignments ............................................................... A-5
          A-7   Power Connector............................................................................................... A-9
          A-8   Hard Disk Drive Connector .............................................................................. A-10




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          Preface
          This service and reference manual contains the technical information necessary to set up,
          and maintain the NEC VersaTM 2000 Series Notebook systems. It also provides hardware
          and interface information for users who need an overview of the computer system design.
          The manual is written for NEC-trained customer engineers, system analysts, service center
          personnel, and dealers.
          Please refer to the training module provided on CD-ROM for disassembly/assembly
          procedures.
          The manual is organized as follows:
          Section 1  Technical Information, provides an overview of the hardware and interface
          components. System specifications are listed including computer dimensions, weight,
          environment, safety compliance, power consumption, and system memory specifications.
          Section 2  Setup and Operation, takes the user from unpacking to setup and operation.
          The section includes a description of operating controls, setting parameters and accessing
          the NEC bulletin board system (BBS).
          Section 3  Illustrated Parts Breakdown (IPB), provides an exploded-view diagram of
          the Versa 2000 series system and part numbers.
          Appendix A  Connector Locations and Pin Assignments, provides a list of the main
          board internal connector pin assignments and a list of external pin assignments.
          An Index is included for convenience.




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          Abbreviations
          A      ampere
          AC     alternating current
          AT     advanced technology
                 (IBM PC)
          BBS    Bulletin Board System
          BCD    binary-coded decimal
          BCU    BIOS Customized Utility
          BIOS   basic input/output system
          bit    binary digit
          bpi    bits per inch
          bps    bits per second
          BUU    BIOS Upgrade Utility
          C      centigrade
          Cache  high-speed buffer storage
          CAM    constantly addressable memory
          CAS    column address strobe
          CD-ROM compact disk-ROM
          CGA    Color Graphics Adapter
          CGB    Color Graphics Board
          CH     channel
          clk    clock
          cm     centimeter
          CMOS   complementary metal oxide     semiconductor
          COM    communication
          CONT   contrast
          CPGA   ceramic pin grid array
          CPU    central processing unit
          CRT    cathode-ray tube
          DAC    digital-to-analog converter
          DACK   DMA acknowledge
          DC     direct current
          DIP    dual in-line package
          DLAB   Divisor Latch Address bit
          DMA    direct memory access
          DMAC   DMA controller
          DOS    disk operating system




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          DRAM    dynamic RAM
          DTE     data terminal equipment
          ECC     error checking and correction
          EDS     error detecting system
          EGA     Enhanced Graphics Adapter
          EMS     Expanded Memory            Specification
          EPP     enhanced parallel port
          EPROM   erasable and programmable           ROM
          EVGA    Enhanced Video Graphics             Array
          F       Fahrenheit
          FAX     facsimile transmission
          FCC     Federal Communications              Commission
          FG      frame ground
          FM      frequency modulation
          Fn      Function
          FRU     field-replaceable unit
          GB      gigabyte
          GND     ground
          HDD     hard diskdrive
          HEX     hexadecimal
          HGA     Hercules Graphics Adapter
          Hz      hertz
          IC      integrated circuit
          ID      identification
          IDE     intelligent device electronics
          IDTR    interrupt descriptor table register
          IMR     Interrupt Mask register
          in.     inch
          INTA    interrupt acknowledge
          IPB     illustrated parts breakdown
          IRR     Interrupt Request register
          ISA     Industry Standard Architecture
          ISR     In Service register
          I/O     input/output
          IPC     integrated peripheral controller
          ips     inches per second
          IRQ     interrupt request




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          K       kilo (1024)
          k       kilo (1000)
          KB      kilobyte
          kg      kilogram
          kHz     kilohertz
          kV      kilovolt
          lb      pound
          LDTR    local descriptor table register
          LED     light-emitting diode
          LSB     least-significant bit
          LSI     large-scale integration
          M       mega
          mA      milliamps
          max     maximum
          MB      megabyte
          MDA     Monochrome Display Adapter
          MFM     modified frequency modulation
          Mhz     megahertz
          mm      millimeter
          ms      millisecond
          MSB     most-significant bit
          NASC    National Authorized Service     Center
          NC      not connected
          NDP     numeric data processor
          NMI     Non-maskable Interrupt
          ns      nanosecond
          NSRC    National Service Response       Center
          PAL     programmable array logic
          PC      personal computer
          PCB     printed circuit board
          PFP     plastic flat package
          PIO     parallel input/output
          pixel   picture element
          PJQFP   plastic J-lead quad flat pack
          PLCC    plastic lead chip carrier
          PLL     phase lock loop
          p-p     peak-to-peak




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          PPI      programmable peripheral       interface
          PROM     programmable ROM
          QFP      quad flat pack
          RAM      random-access memory
          RAMDAC   RAM digital-to-analog
          RAS      row address strobe
          RGB      red green blue
          RGBI     red green blue intensity
          ROM      read-only memory
          rpm      revolutions per minute
          R        read
          RTC      real-time clock
          R/W      read/write
          S        slave
          SCSI     Small Computer System Interface
          SDLC     Synchronous Data Link Control
          SG       signal ground
          SIMM     single inline memory module
          SQFP     silver quad flat package
          SVGA     Super Video Graphics Array
          SW       switch
          TAC      Technical Assistance Center
          TCP      Thin chip package
          TQFP     Thin-quad flat package
          TSC      Technical Support Center
          TTL      transistor/transistor logic
          tpi      tracks per inch
          UART     universal asynchronous receiver/transmitter
          V        volt
          Vdc      volts, direct current
          VESA     video electronics standards   association
          VFO      variable frequency oscillator
          VGA      Video Graphics Array
          VLSI     very large-scale integration
          VRAM     virtual RAM
          W        watt
          W        write




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