Epson Equity LT-286e Troubleshooting Guide download pdf (Page 1)

EQUITY LT 286e

Computer Specifications

CPU:

8OC286

mkroprwwor,

8/12

MHz

ewltch-selectable

dock speeds

Msth

Copmwuor:

8OC287

support

(optlonal),

8MHz

RAM:

(WOKB

standard and

384KB

extended)

IlltrrhCU:

Parallel:

Standard

&blt

parallel; 25

pin, D-type

female connector

SorId:

RS-232C,

programmable. asynchronous;

9 pln, D-type msle connector

vldso:

9pin

female connector supports MDA

CGA,EGA,andextendedEGA

External

dbkstta

drlvo:

15pm,

D-type female connector

4sd.d

ksybosrd:

SpWkw:

Option slot:

MOfnCUy:

Keyboard connector

lntemnl

One

2/3

rlze,

IBM PC AT-compatible slot

lntemsl RAM msrnory card slot allows

expanskm to 2MB;

49pin

male

connector

MOdOllt:

Clock/

Calendar:

Ksybosrd:

Mu8

stcmgr:

Hsrd

Disk:

Dlskstte

drlvos:

Dlsplsy:

internal modem slot; 34-pln male

connector

Real-tlme clock

and

calendar

wfth

battery backup

84 sculpted keys; LCD indicator icons

for Num Lock, Caps Lock, Scroll Lock

Interchangeable, pop-out,

20MB

40MB hard disk designed for

low power

consumption;

2Ems

average access

time;

bultt-fn,

16-M bus ATcompatIble

controller

One Internal

1.44MB

3.5’ diskette

drfve;

optbnal,

external 5.25’

(1.2MB)

diskette

drive

Large (640X480 dots),

high

contrast,

paper-white. bnckllt, LCD display with

164wel

gray scale; continuous

brightness and contrast controls;

power-saving

feature.

CRT mode suppotts ECD (enhanced

color

display), monochrome display, color

dlspiay,

and muftlsynccompatlble

CRTs.

External RGB

monltor

supported

(EGA-

compatlbfe) .

Equity Series Computers

Power Supply:

Externally

attached, rechargeable

NlCad

battery pack (4000 mMarnpere

hours); up to

hours

12/5-volt

adapter

(can recharge

battery

peck while

operatltv~

computer)

with automatic 1

Wd49V

sensing.

Power

Rsqulrsmonts:

loo-240 VAC,

59/w

Hz.

NlCad

rechergeebie

bettety

pack, 9.6

volts, 4 ampere hours

Envlronmrntsl

Condlttorm:

TOmpwrture:

Operating Range: 41 to 95 degrees F

to 35

degrees

Humidity:

Physical

Dimension:

Optbnr:

Modem:

Mmnory:

Bxpsnrbn

cards:

-VI*

case:

Storage

Range: 4 to 122 degrees F

(-20 to

degrees

Operating Range: 29% to

80%

non-condensing

Storage Range: 8% to

80%

non-condensing

Width: 12.9 Inches

(318mm)

Depth: 11.7 Inches (296.5 mm)

(with

handle retracted

Height:

3,46

Inches

(88

mm)

Weight: 16.4

Ibs

(7.4 kg)

(with

battery and hard disk drNe)

internal

2499baud. Hayescompatible.

auto-dial

MB RAM expansion cord

One 2/3-size, IBM PC AT-compatible

slot

Soft

wse

for carrying computer

Slide Switches

The

clock slide switch selects between 8MHz and

12MHz.

Slide switch to the left to select

SMHz,

slide to the

right to select

12Mhz.

The CRT/LCD slide switch selects support for either an

external CRT or the LCD. Slide switch to the right for

the LCD, slide to the left to connect an external CRT.

LT286e-1

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Summary of Contents

Page 1 - Computer Specifications

EQUITY LT 286eComputer SpecificationsCPU:8OC286 mkroprwwor, 8/12 MHzewltch-selectable dock speedsMsthCopmwuor:8OC287 support (optlonal), 8MHzRAM:1 MB

Page 2 - LT286e-2

EQUITY LT 286eThe FDD EXl/INT dida switch enables and disablessupport for an axtamal5.25” diskette drive. Slideswitch to the left if you plan to conn

Page 3 - Connector Pin Assignments

EQUITY LT 286eConnector Pin AssignmentsParallel Port ConnectorP/N No.SW #ME1- STROBE2DATA03DATA14DATA25DATA36 DATA47DATA56DATA69 DATA?10- ACK11+ BUSY1

Page 4 - LT286e-4

EQUITY LT 286eExternal Floppy Drive ConnectorPin12345878Q101112131415%ndMmotlonDefinitionWNDEXIExternal IndexMDSEL0External Drlvo SolootEUOTON 0Extern

Page 5 - Software Problems

EQUITY LT 2868lnstallation/Support Tipswith copy-protection. After the installation, the CPUcanbeswitchedbacktothohlgherspeed.PowerThe Equity LT-2880

Page 6 - Information Reference List

EQUITY LT 286e( Information Reference List (Engineering Change NoticesNone.Technical Information BulletinsNone.Product Support BulletinsNone.Related D