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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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