Laptop User Manual

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EPSON NB3s

battery charging indicator

contrast control ,

LCD screen

brightness control

RAM card cover

ard disk drive

external keypad connector

diskette drive

status indicator bar

Computer Specifications

Main Unit

CPU

386SX microprocessor; 8 MHz or 16 MHz clock speed, selectable

through SETUP or software command

(CV!-All-0

Main

memory

1MB (640KB

conventional;

the remaining 384KB can be used as

either shadow RAM or extended memory, selectable through

SETUP)

Math coprocessor

Socket for optional 16-MHz, 387SX coprocessor

Clock/calendar

Real-time clock and calendar with battery backup

Interfaces

Parallel / External diskette drive

25-pin, D-type, female connector; standard B-bit parallel or external

diskette drive support, selectable through SETUP

Serial

RS-232C, programmable, asynchronous, 9-pin, D-type male

connector

Video

15-pin, female connector; supports

VGA

monitor

Eatuml

num8rlc

k8yp8d

9-pin, mini-DIN connector for

optiorul

external numeric keypad

Speaker

Internal

Memory

Internal RAM card slot: allows expansion to 2MB or 5MB

Modem

lnternal slot for optional modem

parallel/external diskette drive port

external monitor port

Notebook Computers

11/30/90

NB3s-1

Summary of content (7 pages)

PAGE 1
EPSON NB3s contrast control , / LCD screen battery charging indicator brightness control RAM card cover ard disk drive external keypad connector I diskette drive \ status indicator bar parallel/external diskette drive port external monitor port I 1 Computer Specifications 1 Main Unit CPU 386SX microprocessor; 8 MHz or 16 MHz clock speed, selectable through SETUP or software command (CV!-All-0 Main memory 1MB (640KB conventional; the remaining 384KB can be used as either shadow RAM or extended m
PAGE 2
EPSON NB3s Keyboard 82 sculptured keys; status indicator bar icons for Num Lock, Caps Lock, and Scroll lock Optional, external numeric keypad Mass Storage Interchangeable, slide-out, 20MB or 40MB hard disk designed for low power consumption; 23ms average access time; built-m controller; power-saving feature Diskette drives One internal, 1.44MB 3 M-inch diskette drive Optional, external 5 Vwnch (1.
PAGE 3
EPSON NB3s options Internal 2400-baud, Hayes-compatible, auto-dial modem 1MB or 4MB RAM expansion cards 20MB or 40MB. interchangeable hard disk drives External numeric keypad Battery pack External battery charger Car cigarette lighter adapter Carrying case Expansion Unit Power Supply Automatic 100-240V sensing, 50/60 Hz.
PAGE 4
EPSON NB3s ~rinter/FDD Connector 13 Thorn am IKI jumpon to aot for the Epwn NB3a. All settinga 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2s am caltrollod by tha SETUP progr8lll. Pin Assignments for the Parallel Port The NB3a hu on.
PAGE 5
EPSON NB3s I/O Port Addresses oooO1F 02OGF o4005F OWO6F 07W7F 00O-OgF OM-OBF OCU-ODF OF0 OF1 OF&OFF 12B121 170-178 Hardware Interrupts 1BF lFolF0 2cD207 27~27A 27s TllMfOUtpUtO IRQl MO2 no3 ma4 IRQS I
PAGE 6
EPSON NB3s Fmu SuQpry Automatic lUI-240 V wndng, 50180 Hz. Supplies enough powor to oporato the computer, recharge the Wry p& and powor an optional full-nizo keyboard. nardmdt Intetiangrabk, alidwut. lMM8 hard didc; 19 ma average acceaa time; built-in contlollu. Video Controller Switch nyouwirh~inrtallr~cudinmrN~ExpurrionUnit, OQWI skcr Two standard l/O evsion slotr, 8/l&bit ISAcompatibk. yw mud disabh the onboard video comrolbr. To do this, set thsvideoswltohtotheWpwltlon.
PAGE 7
Epson NB3s [ Information Reference List 1 Engineering Change Notice None Product Support Bulletina None. Related Documentation MS DOS 4.