power (SPEED) light hard disk access light diskette drive bay for hard disk, diskette, tape,

CD-ROM, or other drive

115mo V A C s w i t c h

.

option card slots

rt

//

I-

1

Computer Specifications

CPU and Memory

32-bit CPU 4DX2/66: Intel i486DX2,66 MHz microprocessor; supports future Intel

OverDrive processors

System speed

Memory

High, low, and automatic speeds available; high speed is CPU-dependent

(66 MHz), low speed is simulated 8 MHz, automatic speed switches from high to low only for diskette drive access; speed selection through SETUP, keyboard command, or ESPEED program; 0 wait state memory access at high speed

20MB standard (4MB DRAM soldered on main system board and one 16MB SIMM); expandable using lMB, 4MB, 16MB, or

64MB SlMMs to 128MB maximum on main system board; SlMMs must be 70 ns,

36-bit, 72-pin, gold-leaded, fast-page mode we power button

EPSON NX

ROM

Video RAM

Shadow RAM

Cache

VirtualCache

128KB ROM containing system BIOS and video BIOS; 64KB ROM containing SETUP code

2MB video RAM on main system board

Automatic shadowing of system and VGA

BIOS ROM into RAM; shadow RAM address control selectable through SETUP

8KB of internal cache (built into the microprocessor); cache testing and address control selectable through SETUP

Epson proprietary VirtualCache’” feature automatically creates a “virtual cache” buffer the size of maximum system memory

Built into the microprocessor Math coprocessor

Clock/calendar Real-time clock, calendar, and CMOS

RAM on main system board; separate battery backup

Controllers

Video

DiSk&te

Hard disk

Chips and Technologies Wingine’”

P64200 VGA controller on main system board; provides resolutions of up to 1024 x 768 x 64K colors or

1120 x 832 x 64K colors, depending on the available drivers

Controller on main system board supports up to two diskette drives or one diskette drive and one tape drive (DOS only)

Interface on main system board supports up to two IDE hard disk drives with built-in controllers

Interfaces

Monitor

Parallel

Serial

VGA interface built into main system board for analog or multifrequency VGA monitor; 15-pin, D-shell connector

One standard 8-bit parallel, bidirectional interface built into main system board; port assignment and I/O address selectable through SETUP; 25-pin, D-shell connector

Two RS-232C, programmable, asynchronous interfaces built into main system board; port assignment and I/O addresses selectable through SETUP;

9-pin, D-shell co~ectors

6/30/93

EPSON NX-1

EPSON NX

Keyboard

Mouse

Option slots

Speaker

Feature connector

LAN adapter

Mass Storage

Horizontal mounts

Vertical mount

Diskette drives

Hard disk drives

ES/2 compatible keyboard interface built into main system board; keyboard speed, delay, and num lock settings selectable through SETUP; 6-pin, mini DIN connector

I’S/2 compatible mouse interface built into main system board; 6-pin, mini DIN connector

Four standard X-bit (or &bit) I/O expansion slots (three available); ISA compatible; 8 MHz bus speed

Internal; operation controllable through

SETUP and volume selectable by software

IBM compatible VGA pass-through interface built into main system board;

26-pin connector

Intel EtherExpress 16C, &bit ISAcompatible Ethernet adapter; supports

BNC coax (thin Ethernet), AUI DE15s

(thick Ethernet), and RJ-45 (10BaseT

Ethernet); Link and Activity status LEDs; software configurable for I/O address,

IRQ, connector type, and I/O- or memorymapped buffering; diagnostic utility included

Three drives maximum (two horizontal mounts and one vertical mount), configurable using the following:

Up to two externally-accessible, half-height horizontal mounts; each horizontal bay can accommodate one

5%inch form factor hard disk, diskette, tape, CD-ROM, or other drive, or one

3%-inch form factor hard disk, diskette, tape, CD-ROM, or other drive with

51/4-inch mounting frames attached

One internal third- or half-height vertical mount; vertical bay can accommodate one

3%-inch form factor hard disk or other drive

3.5~inch, 1 &MB (high-density)

5.25~inch, 1.2MB (highdensity), DOS only

3*4-inch or 5&inch form factor hard disk drive(s), up to half-height size; the first mounted vertically, second mounted horizontally; (the vertical bay can accommodate only 3l/i-inch form factor drives; the horizontal bays can accommodate 3*4-&h or 5!@nch form factor drives)

Other devices

Keyboard

Half-height tape drive, CD-ROM drive, or other storage device; 51/4-inch form factor or 31&inch form factor with 5’!-inch mounting frames attached

Detachable; two-position height;

101 sculpted keys; numeric/cursor control keypad; four-key cursor control keypad;

12 function keys

Power Supply

Type

Input ranges

Maximum outputs

Frequency

Cables

145 Watt, fan-cooled

90 to

132 VAC and 180 to 264 VAC, switch selectable voltage

+5

VDC at

18 Amps, +12 VDC at 4.0

Amps, -5 VDC at 0.3 Amps, -12 VDC at

0.3 Amps

47to63Hz

Two to main system board; four to mass storage devices

Option Slot Power Limits

Maxlmum current

For each slot

For ail four slots

+5 volts

7 Amps

16Amps

+12 volts -SVoRsand-12Volts

1.5Amps 0.3Amps

3 Amps 0.3 Amps

Environmental Requirements

Condltlon

Temtxvature

I

1 Operatlng range 1 Nonqeratlng

I 41’ to 95’ F

(SO to 35OC)

20% to 60%

1 range

I-4°t01400F

(do0 to 6oOC)

1O%toQO%

1 Storage range

I

14’to140°F

(-2o” to 6oOC) lO%to95% Humidity

(noncondensing)

Atlituds ~toQ,QOOR 4ooto 11,660R 4300t039,600ft

(-100 to 3,000 m) (-100 to 3,600 m) (-100 to 12,000 m)

M a x i m u m 66’F wet bulb (20°C)

Acoustical noise

37.4 dB(A)

I

104’F

(4OOC)

W A

I

134’F

(57OC)

N/A

1

I

Physical Characteristics

Width 14.8 inches (370 mm)

Depth 16.5 inches (412 mm)

Height

Weight

4.8 inches (120 mm)

16.7 lb (7.6 kg), without keyboard

EPSON NX-2 6/30/93

Major Subassemblies

J1549 option board riser card

VGA feature connector

J5J6 q

EPSON NX

vertii drive bay horizontal drive bays

6/30/93 EPSON NX-3

EPSON NX

Main System Board Diagram

alternate

VGA feature connector video DFtAM option board

- risercad connector

- FDD connector

1 HDD connector

EPSON NX-4 6/30/93

EPSON NX

Connector Pin Assignments

Parallel Port Connector (CN5) pin 13 pin 1 t-1 pi;25

I pin 14

Parallel Port Connector Pin Assignments

1

Pin Signal strobe

Pin Signal

10 ACK’

Pin Signal

19 Signal ground

VGA Port Connector (CN2)

Pin 5 pin 10 pin 15

VGA Port Connector Pin Assignments pin 1 pin6 ptn 11

19 IData

*Active low kgic

I 16 I Signal ground

Serial Port Connectors (CN4 and CN8)

Serial Port Connector Pin Assignments

Pin Slgnai

1

2

Data carrier detect

Receive data

3

4

Transmit data

1 Data temjnai ready

5 INotused

I

7

6

Pin Slgnai

6 Data set ready

Request to send

Clear to send

IQ

I

1 Ring indicator

Keyboard Connector (CN10) and

Mouse Connector (CN9) pin6 pin 5

““‘w pin3

pin2 pin 1

Caution

Although the keyboard and mouse connectors are physically identical, they cannot be used interchangeably.

Keybcuzrd and Mouse Connector Pin Assignments

1

Pin Signal

2

Data

ReSeWed

3 Ground

Pin Signal

4 +5 VDC (fused)

5

6 clock

Reserved

I

VGA Feature Connector (CN17)

pin 1

pin 25 l eeoeaeoeae pin2 pin 26

VGA Feature Connector Pin Assignments

Pin Signal

1 Data0

12 IData

Data2

Dat a 3

Data4

Data5

17 IData

6

9

Data7

PCLK

*A&e low logic

Pin Signal

10 BLANK

11 HSYNC

12 VSYNC

13 Ground

14 Ground

15 Ground

1 17 1 ENDATA’

I16 1 ENSYNC*

Pin Slgnai

19 ENPCLlC

20 Not connected

21 Ground

22 Ground

23 GtWnCt

24 Ground

I

I

I25 1 Not connected

I26 1 Not connected

DMA Assignments

Level

DMAO

DhAAl

DMA2

DMA3

DMA4

DMA5

DMA6

DMA7

Assigned device spate p-bit) span3 @-bit)

Floppy disk dttve controller (&bit) spam p-bit)

Cascade to DMA controller 1 span3 (M-bit) spare (Mbit) spare (w-bit)

EPSON NX-5 6/30/93

EPSON NX

Hardware Interrupts

Hex address*

22El

1 Asslgned device j GPIB (adapter 1)

System l/O Address Map

FO80 - F085

F089 - FO8D

Epson reserved function

Epson resewed function

* Recommended addresses for installing devices

I

I

Jumper Settings

See the illustration on page 3 for the location of the jumpers on the main system board.

CPU Speed Jumper Settings*

CPU speed

DW88 l

Factory settings

CPU Type Jumper Settings’

Jl

A

J2

A

53

B

J4

A

CPU type

ODP488DX88

J5

A

J6

A

57

B

J6

B l

This table shows the factory settings for jumpers J5-J8. You need to change these settings only if you install a future CverDrfve processor.

Other ]umper Settings

JlO

Jll

I

A‘

B

I A*

Function

Enables the built-in mouse connector

Dtsables the built-in mouse connector

Enables the built-in VGA display adapter

Disables the built-in VGA dlsptay adapter

A color monitor is Installed

A monochrome monitor is installed

Enables a mouse or other polnting device connected to an opt&n card

Disables a mouse or other pointing device connected to an option card

Disables the password

Enables the password

Reserved l

Factory setting

“To use a mouse connected to a port on an option card, set J9 to B and J12 to

A. lf you connect another type of pointing device (such as a joy stick) to the option card port, set both jumpers to A.

EPSON NX-6 6/30/93

EPSON NX

Processor Chips

Support is provided for a future OverDrive processor.

SIMM lnstallation

There are two SIMM sockets on the main system board. To increase the amount of memory in the computer up to

128MB, you can install 36-bit, n-pin, gold-leaded, fast-page mode SIMMs that operate at an access speed of 70 ns or faster, with a capacity of lMB, 4MB, 16MB, or 64MB.

The following table shows the possible SIMM configurations; do not install memory in any other configuration. Make sure that both SWIMS operate at the same speed. The computer comes with 20MB of memory @MB soldered on the main system board and one 16MB SIMM).

SIMM Configurations

Hard Disk Drive Types

The table below lists types of hard disk drives you can use in the computer. Check this table and your hard disk manual to find the correct type number(s) for the hard disk drive(s) installed in the computer. You need to enter the type number(s) when you set the hard disk drive configuration in the SETUP program.

Had Disk Drive Types

1

2

Type cylnders kds Recomp IAndIng &ctars sb* orlwno. (CYL) (HDS) zone (SEC) (hM8) mmnuhdumr

306

615

4 126

4 300

I I I

3[)6

615

17

17

10

20 ST-225,ST-W6,

1MB

18MB

4MB

16MB

I64MB’

64MB

1MB

4MB

16MB l

84MB l

64MB -

64MB -

I

I4MI j16MB j16MB

64MB l

1MB

64MB *

4MB

64MB =

18MB

64MB *

164~~’

24MB

1 241 MB

I38MB

Ii

68MB

68MB

89MB

69MB

72MB

72MB

84MB

84MB

1 128MB *

.

* When SIMM is available

This memory configuration diiles the 4MB of soldered memory.

6

9

10

11

12

13

14

15

16

17

I I

612

977

733

QW

820

16%

I655 x6

723

II\ Inn

29

30

3l

32

73?

I@3

I5

17

6

7

5

15

3 none none nom

Inane na-e

120 none

4

5

I I

0

300

17

"-

733

Qol

620

16%

1655

1 319

1733

117

117

17

17

17

17

17

663 17

977 17

1 1 I a

40

977 tm,

17

47

56

!!a

'

30

112

20

135

49

20

4

'

I

ST-m6

CDC942S51,

I CP-3044 t,CP-2044t, I

7060t,6051At cR7lMa

5

7

5

1466

300 none

, ,I

1336

I!YYl

, #Y

IQ77

732

Ice'

17

"

1s

17

46

33

46

17

17

IO

81 loo

162

40

40 w-30084

CP3104

CP-3ol74Es

42

P

1

6/30/93

1 --- -

942l6-106ESDn I

4 4 828

45 la?4

46

615

I

10

5

8

626 la?3

616

34

17

17

137

42

4 0

IXTIUE NDR1065

M&;

* Actual size when formatted may be slightly different than the size listed on the drive label.

t Hard disk drive supported in translate mode

$ Epson drives none

512

126

I

EPSON NX-7

EPSON NX

If the computer has an Epson 170MB or 240MB hard disk drive, select the appropriate type number from the table below.

Epson Hard Disk Drive Types

Type4 number

28

3 4

Epson hard disk drive

17OMB

24OMB

lnstallation/Support Tips

Power

The computer has an input voltage selection switch on the back panel to select between 115 VAC, for USA and

Canadian use, and 230 VAC, for use in other countries.

Mouse and Keyboard

When connecting the mouse and keyboard to the computer, be careful to plug them into the proper ports. Although the ports are physically identical, they are not interchangeable, and you may damage the main system board if you plug the connectors into the wrong ports.

Installing Diskette Drives

Make sure that the drive type has been correctly selected in the SETUP program.

Installing Hard Disk Drives (for DOS Use)

It is recommended that a 16-bit, AT-type hard disk controller be used if you are installing a drive that cannot use the embedded IDE interface. If you install a non-IDE hard disk drive and controller card, you need to use the

SETUP program to disable the built-in IDE hard disk drive interface.

See the hard disk drive type tables on pages 7 and 8 and use the SETUP program to enter the correct type number(s) for the hard disk drive(s) installed in the computer. (Also be sure to use the SETUP program to set the hard disk drive configuration if you install or remove a hard disk drive.) You can select a type number that matches the parameters for the drive or a type number with parameters having lesser values, as long as they do not exceed the maximum capacity (in MB) of the drive. If there is no match for the drive, you can press Enter and then F2 at the Hard disk 1 or 2 option and enter the drive’s exact parameters.

Software Problems

Cl If you are using a copy-protected program that can run only on a diskette or that requires a key disk, try to load the program at high speed. If you can’t load the program at high speed, set the processor speed to automatic.

Cl If you are using a copy-protected program that does not require a key disk but requires a special procedure to install it on a hard disk, set the speed to low while you install the program. Then set the speed to high while you load and run the program. If this does not work, try installing and loading the program at low speed and then change to high speed to run it.

Ci You can change the processor speed using the SETUP program, the ESPEED program, or keyboard commands.

See the User’s Guide and Setup Guide for more information.

Password

Make sure that you do not forget the password you set. If you do, you must disable it by setting jumper J13 on the main system board to position A.

Information Reference List

Engineering Change Notices

None.

Technical Information Bulletins

None.

Product Support Bulletins

None.

Related Documentation

TM-EESNNX EPSONNXServiceManual

PL-EPSNNX

SI’KEI’SNNX

EPSON NX Parts Price List

EPSON NX Self Paced Kit

400227900

400227800

400193100

EPSON NX Setup Guide

EPSON NX User’s Guide

EPSON VGA Utilities Guide for Wingine based products

EPSON NX-8 6/30/93