Epson Equity LT-286e Dimensiones

EPSON

Product Support Bulletin

Subject: Proper Method for Running Benchmark and Diagnostics Programs

Date: 06/04/93 PSB No: S-0158

Page(s): 1 of 1 Originator: MWT

This bulletin describes the proper method for running any benchmark or diagnostics

programs. This applies to any computer system.

In most cases, the computer should be started using an MS-DOS boot diskette

that’s ‘clean’ -

in other words, one with no CONFIG.SYS or AUTOEXEC.BAT files.

The appropriate executable can then be run, either from diskette or hard drive.

There will be some exceptions to the above rule. In attempting to benchmark or

troubleshoot any add-on that requires a device driver (CD-ROM, local area network,

etc.), obviously the necessary device driver(s) must be loaded. Also, some

programs will require a minimum number of FILES or BUFFERS to be defined in

the CONFIG.SYS file. Such programs will usually display this requirement if they

are run without the necessary CONFIG.SYS file.

For the most consistent results, use the absolute minimal boot configuration that’s

allowed by the hardware being tested.

EPSON AMERICA, INC.

INFORMATION

Product Support Bulletin

Subject:

Using the Manzana DrivePort

Date:

05/25/90

Page:

1 of 2

PSB No:

Originator:

MWT

Manzana Microsystems, Inc. (Goleta, Ca.) has developed a product called the

DrivePort. It allows the removable “DataSafe” hard disk drive cartridges for the

Equity LT-286e and LT-386SX to be used on an AT- type desktop

computer. The subsystem consists of the 16 - bit DrivePort adapter card, the

DrivePort base unit and cable, a Y-configured power cable and a diskette

containing the QDRIVE.SYS device driver and utility software.

The DrivePort was tested using an Equity 386/25 desktop computer equipped

with two IDE hard disk drives, two floppy disk drives, a streaming tape drive

and a VGA video adapter.

The first step in the installation process is configuring the DrivePort adapter

card. The default jumper settings assign the DrivePort as an additional drive

(E1, E4 and E5 installed; E2, E3 and E6 removed). This is the setting that

was used. Note that it is possible to configure the DrivePort as the primary

(only) drive, but Manzana recommends against this for a number of reasons.

There are two other jumpers (W1 and W2) that determine the power source

for the adapter. When these jumpers are set in the A - B positions, the adapter

is powered by the Y-power cable. This cable must be connected to one of

the disk drive power cables from the power supply. Then take the small 4 - pin

connector of the Y-cable and attach to the matching connector J3 on the

adapter card. The third part of the “Y” is a male 4 - pin connector for powering

a disk drive, if all of the power supply wiring harness connectors are in use.

With W1 and W2 in the B - C positions, all power is supplied via the 16 - bit

system bus. This is the configuration that was tested.

Now the adapter card is installed in any available 16 - bit AT- type expansion

slot. Once installed, the cable from the base unit is attached to the DB-37

connector on the adapter card’s mounting bracket. This completes the

hardware portion of the installation.

PSB No: S-0120

Page: 2 of 2

At this point, the device driver and utility software should be copied to the

hard drive. On the test unit, the QDRIVE.SYS driver was copied to the C:\SYS

subdirectory, and the QDRVLTR.EXE, QDRVCHK.COM and HXBIOS.COM

utilities were copied to C:\DOS. the CONFIG.SYS file was then edited to add

the following line:

DEVICE = C:\SYS\QDRIVE.SYS

This device driver acts as an extension of the drive handling capabilities of

MS- DOS, allowing the DrivePort to be recognized on boot-up. On the test

system, logical drives C, D, and E were already assigned to the internal hard

drives, so QDRIVE.SYS assigned logical drive F to the DrivePort. If the system

is booted without a hard drive cartridge mounted in the base unit, there will be

a pause while the device driver retries the DrivePort. It will then proceed with

the boot process without installing the device driver or assigning a logical

drive.

NOTE: Installing or removing a hard drive cartridge while the system is

powered on may result in severe damage to the drive, the DrivePort, or the

computer. Always turn the computer off before installing or removing the hard

drive cartridge.

QDRVCHK.COM provides technical statistics on the mounted DrivePort, similar

to the DOS CHKDSK command. HXBIOS.COM can be executed if the system

was booted with no hard drive cartridge installed and QDRVCHK needs to be

run. QDRVLTR.EXE will provide the DrivePort’s logical drive assignment.

The hard drive cartridge must be initialized on the LT-286e or LT-386SX.

The low - level format and partitioning cannot be done via the DrivePort. Also,

the DOS - level format must be performed for the first time on the laptop - it

may then be formatted while installed in the DrivePort.

In testing, the DrivePort performed as if an additional conventional hard disk

drive had been installed. File and directory copies, application program

execution and BACKUP/RESTORE functions were tested with no problems.

The DrivePort is available from Epson Accessories, Inc. at (800) 873-7766.

Manzana can be contacted at (805) 968-1387.

EPSON AMERICA, INC.

INFORMATION

Product Support Bulletin

Subject:

Equity LT-286e and Third Party Memory Boards

Date: 5/09/90

Page: 1 of 1

PSB No: S-011

Originator: DS

The purpose of this bulletin is to provide information on additional memory

expansion after the Epson 1mb memory bd has been installed.

Because of the 2/3 size of the AT compatible expansion slot in the LT286e, most

full length memory cards will not fit.

However, a 2/3 size 16 bit memory card from RAMFLEX has been tested and found

to be compatible.

The RAMFLEX card comes populated with 2mb of embedded DRAM. An installation

program is provided and setup is quite simple.

The RAMFLEX card must be installed as extended memory and for expanded

memory an EMS package like TURBO EMS from LANTANA must be used.

From the

> prompt, run “INSTALL” from the RAMFLEX diskette.

The steps are self explanatory. Set the start address at 2432 if the system is already

configured at 2mb. When the system re-boots it will prompt you with a “MEMORY

SIZE ERROR”

. Run setup and the memory field will auto update. System re - boots

and configures to 4mb.

LANTANA’s TURBO EMS was used to emulate 2mb of expanded memory under

LIM 4.0.

The supplier is:

COMPUTER ELEKTRONIK INFOSYS of America, Inc.

512 - A Hemadon Parkway

Herndon, VA 22070

TEL

(703) 435 - 3800

(800) 322 - 3464

Product Support Bulletin

Subject:

Equity LT- 286e and Lotus 1 - 2 - 3 Release 3.0

Date:

4/11/90

Page:

1 of 1

PSB No:

S-0114

Originator:

Mwr

This bulletin is to inform you of the solution to a problem encountered when

running Lotus 1-2-3 release 3.0 on the Equity LT-286e.

When 1-2-3 release 3.0 is loaded, the keyboard response becomes

extremely erratic. There may long delays before keystrokes are displayed,

keystrokes may not be registered at all or the incorrect keystroke may be

registered. Note that this problem does not occur when an external keyboard

is used.

This is corrected by setting the DOS environment variable DOS16M to 10 prior

to running 1-2-3 release 3.0. This is most easily done in either the

AUTOEXEC.BAT file, or a batch that is used to load 1-2-3. Here is an

example of the latter:

@ ECHO OFF

SET DOS16M =10

CD 123

LOTUS

CD \

The DOS16M environment variable is then recognized by 1-2-3 and correctly

“syncs up” the keyboard.

Product Support Bulletin

Subject:

Equity LT-286e 2400 Baud Modem Information

Date:

3/05/90

PSB No:

Page:

1 of 1 Originator:

MWT’

The 2400 baud internal modem for the Equity LT-286e has been released.

Below please find some related information:

Equity LT-286e 2400 Baud Modem

A808211

MSRP $299.00

Data Rates

Compatibility

Operational modes

Configuration and

phone number storage

Data format

Character length

Diagnostics

Equalization

Telephone interface

Transmit level

Power source

300/1200/2400 bps

Bell 103J and 212A

CCITT V.22 and V.22bis

Auto dial, auto answer, auto speed selection with

automatic fall - back mode

Nonvolatile memory

Asynchronous or synchronous, character serial

10 bits

Local analog loopback, local digital loopback, local

data test pattern, remote digital loopback, remote

data test pattern

Auto - adaptive (2400 bps)

RJ - 11, 2-wire, full duplex

-10 dbm

Supplied from bus

In order to run a self-test, perform the following steps:

From terminal mode in the telecommunications program used, do the following.

Type ATZ and Enter. Modem responds with OK.

Type AT10 and Enter. Modem returns ID code.

Type AT11 and Enter. Modem returns ROM checksum.

Type AT12 and Enter. Modem tests internal memory, returning OK if functional;

ERROR result code if not.

To exit self-test mode, type ATZ and Enter.

Note that there is no speaker, so all dialing operations are performed silently.

Monitor the progress of the call by watching the display for messages such as

CONNECT, NO CARRIER, BUSY, etc.

Product Support Bulletin

Subject:

Equity LT - 286e Questions and Answers

Date: 9/25/89

Page: 1 of 7

General

PSB No:

Originator:

Q1.

Q2.

Q3.

Q4.

Q5.

Q6.

What microprocessor does the Equity LT-286e use?

The Equity LT - 286e utilizes an Intel 80C286 - 12 CMOS microprocessor

running at either 8 or 12 MHz clock speeds (switch selectable).

Can I switch the CPU speed between 8 MHz and 12 MHz while the unit

is in operation?

No -

the switch is on the bottom of the unit so it is not easily accessible

and the CPU and clock circuitry are not fully synchronized.

Can I adjust the speaker volume?

No -there is no provision, either hardware or software, for volume

control.

What type of keyboard does the LT - 286e come with?

The keyboard used in this system is compatible to the 84 - key keyboard

of the original IBM - PC/AT. The compact layout of this keyboard is such

that the main keys are arranged according to QWERTY layout, the function

keys are located from upper left to upper center position and the ten -

key is embedded in the upper right position.

Can I move my LT-286e around while it is turned on?

It should be okay to move it around as long as the drive access LEDs

aren’t on. Keep any such movement to a minimum.

What type of video capability comes with the LT - 286e?

It comes standard with a detachable LCD display and a connector for an

external monochrome or color monitor.

Q7.

Q8.

Q9.

PSB No: S-0104

Page: 2 of 7

What type of LCD does come with it? How large is it?

The LT-286e has an EGA - compatible paper white, backlit LCD; 640 x

350 resolution; 8 level gray scale. The active screen area is approximately

10.25 inches diagonally.

Why do the specifications in the User’s Guide indicate 640 x 480 pixel

resolution?

That’s the maximum resolution the hardware is capable of. The closest

compatible software video standard is the 640 x 350 pixel resolution of the

EGA standard.

How can I use the memory between 640K and 1MB?

This 384K block of memory can be used as extended memory (to use

VDISK outside of conventional memory, for example) or it can emulate

expanded (EMS) memory using the Turbo EMS software.

Options

Q10.

Q11.

Q12.

Can third - party option cards be installed in the LT- 286e?

The LT- 286e has one 2/3 length internal 8/16 bit IBM AT- compatible

expansion slot for third - party option cards.

Avoid using any hard disk

controllers or video display adapters, as these would conflict with the

internal circuitry.

Can a math coprocessor be used? Is it user - installable?

Yes, the Intel 80287 - 8. The coprocessor clockrate is fixed at 8 MHz.

Installing the 80287- 8 will increase the power requirements and decrease

the time of battery operation, though. Yes, the installation instructions are

in Appendix B of the User’s Guide.

The User’s Guide references the 80C287 CMOS math coprocessor. Why?

There were some changes in the design considerations for Intel’s CMOS

version of the '287. These include additional power and ground signals that

are not standard for the NMOS ‘287, and were therefore not part of the

LT - 286e’s basic design, Specifically, the 80C287A - 12 math coprocessor

SHOULD NOT be installed in the LT- 286e as component damage could

result.

PSB No: S-0104

Page: 3 of 7

Q13. What kind of mouse can I use?

Most serial or bus mouse devices designed for the IBM PC can be used

with the LT- 286e, such as those from Microsoft and Logitech.

Q14. Can the amount of RAM memory be increased?

Yes, Epson markets a proprietary 1 MB internal RAM memory card

(A808191) to expand to 2 MB. The RAM card plugs into the designated

memory slot in the back right side of the computer.

Q15. Is there an internal modem for the LT- 286e?

Yes. Epson offers an optional Hayes- compatible 300/1200/2400 baud

internal modem (A808211). It installs in the “snap-slot” at the left rear of

the computer.

Q16. What kind of external FDD can be used with the LT - 286e?

The Epson external 1.2 MB, 5 1/4 - inch disk drive (A81 1241).

designate the external drive as A, DIP switch SW2- 2 has to be off and

to designate it as the B drive, SW2 - 2 has to be on. On the bottom of

the unit, the FDD EXT/INT slide switch has to be set to FDD EXT.

The FDD cable connects from the external diskette drive to the proprietary

EXT. FDD port on the right side of the computer. This FDD unit requires

external AC power.

Q17. Can I use an external keyboard?

You can attach an Epson or third - party PC/AT - type enhanced keyboard

to your LT- 2868 through the socket on the front right side of the

computer.

If you are planning to use the Epson Equity + series 101 - key keyboard,

you will need the keyboard connector (A818031) to avoid interference with

the case.

PSB No: S-0104

Page: 4 of 7

Q18. How do I use an external CRT with my LT - 286e?

You can connect a monitor to the video interface (DB - 9) on the side of

the unit.

A slide switch beneath the unit lets you change between the

LCD and an external CRT display. The LT- 286e supports TTL

monochrome, CGA and EGA monitors. For best results, a TTL

monochrome monitor should be installed for software as “640 x 350 EGA

MONO”.

Hard Disk Drives

Q19. What capacity hard drives come with the LT- 286e?

Either a 20 MB type 2 (A811221) or a 40 MB type 17 (A811231).

Q20. Can I install the hard drive myself?

Yes. Open the computer and remove the blank cartridge from the left side

above the keyboard. Grasp the hard drive cartridge with the “PUSH” button

to the left. Lower the cartridge squarely into the drive bay, using the keyed

slots to locate it correctly. As it seats, press down firmly but carefully until

the cartridge locks in place. Turn the computer on and run SETUP to

select the correct drive type. If it’s a new drive, it will need to be

partitioned and formatted before use.

Q21. What is the “SHOCK WATCH” indicator on the bottom of the hard drive

cartridge?

The hard drive cartridge is a delicate device. The shock watch capsule is

a precautionary device to let you know if a drive has received an excessive

physical shock. For example, the shock watch capsule would turn from

clear to red if a drive was dropped approximately 2-4 feet on thin carpet.

It does not mean that the drive is definitely damaged - it simply lets you

know that it has received a shock and should be thoroughly tested by a

Customer Care Center before further use.

Q22.

Does the hard disk drive (HDD) automatically park the heads in the landing

zone when the LT- 286e is turned off?

Yes. The HDD automatically parks the heads when the unit is turned off.

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