Epson Equity Iii Product Support Bulletin

2015-03-28

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EPSON

Product Support Bulletin
Subject: Proper Method for Running Benchmark and Diagnostics Programs
Date: 06/04/93
Page(s): 1 of 1

PSB No: S-0158
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.

Product Support Bulletin
Subject:

Equity and Apex Series Compatibility with the Sysgen OmniBridge
Controller and BridgeFiler External Floppy Drives

Date:
Page:

04/11/90
1 of 3

PSB No:
Originator:

S-0088B
KAS 60

The purpose of this bulletin is to provide the results of compatibility testing
conducted by the Computer Product Support Center with the Sysgen
OmniBridge controller and Bridge - Filer external floppy disk drives.
Comments
Equity I

The Equity I was found compatible with the OmniBridge
controller. It was able to support one or two external
disk drives (daisychained) together. The external drives
could be used as high density (1.2M and 1.44M) or
normal (360K and 720K) disk drives.

Equity II

The Equity II was found to be totally incompatible with
the OmniBridge controller.

Equity III

The Equity III was found compatible with the OmniBridge
controller. It was able to support one or two external
disk drives (daisychained) together. The external drives
could be used as high density (1.2M and 1.44M) or
normal (360K and 720K) disk drives.

Equity I +

The Equity I + was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

Equity le

The Equity le was found compatible with the OmniBridge
controller. It was able to support only one external
floppy drive, unlike the other models tested. The drive
could be used as a high density (1.2Mb and 1.44Mb) or
normal (360K and 720K) disk drive.

PSB No: S-0088B
Page: 2 of 3
Equity II +

The Equity II + was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

Equity lIe

The Equity Ile was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

Equity Ill +

The Equity III + was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
144M) or normal (360K and 720K) disk drives.

Equity 386SX

The Equity 386SX was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
144M) or normal (360K and 720K) disk drives.

Equity 386/20

The Equity 386/20 was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

APEX

The Epson APEX was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

APEX +

The Epson APEX was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

PSB No: S-008B
Page: 3 of 3
APEX 100

The Epson APEX 100 was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

APEX 200

The Epson APEX 200 was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.

NOTE:

The recommended switch settings for the OmniBridge controller are
as follows:
1-1
1-2
1-3
1-4

DOWN
DOWN
DOWN
DOWN

2-1
2-2
2-3
2-4

DOWN
DOWN
UP
UP

These settings select NO ADDRESS for the OmniBridge BIOS and
allow it to coexist with the internal FDC of the computer in which it
is being installed. This way you do not need to disable the internal
FDC or connect any cables from the OmniBridge to internal floppy
drives. This was found to be a universal setting for all of the
computers listed above as compatible with the OmniBridge controller.

Product Support Bulletin
Subject:

Apex / Apex Plus / Equity Series Keyboards
PSB No: S-0080
Originator: REMAL

Date: 4/19/89
Page: 1 of 1

The purpose of this bulletin is to provide information on the various keyboards
used with the Apex, Apex Plus and Equity series computers and the part
numbers of the keyboard subassemblies used with these keyboards.
The Apex and Apex Plus computer keyboards are to be replaced as whole
units.
The
The Equity series keyboards are repaired to the subassembly level.
Equity III keyboard PCB assembly is the only one that comes with the key top
set attached.
Since some of the keyboards have the same model numbers, the difference
can be determined by the FCC ID number in those cases.
The chart below provides a quick reference to determine the part number of
the main keyboard PCB assembly, key top set, control logic subassembly, and
keyboard cable.
Apex / Apex Plus
Keyboard
Unit

Model
Apex
Apex Plus

Equity I, II, Ill
Model

A265091A
93553905410

Equity I/II
Equity Ill

Keyboard
PCB Assy
Y145501001
KAFLZ3AEPS1

Keyboard
Cable

Key Top
set
Y145501021
attached

Y144305000
KACCL060UCA

Equity I +, II +, Ill+, 386/20
Model

Code

FCC ID

Keyboard
PCB Assy

Control
Board
attached
attached
none
Y171501017

Key Top
set

Keyboard
Cable

Y127501022
Y127501022
Y127501022
Y127501022

Y127501031
Y127501031
Y163502020
Y163504006

Equity le
Model
E1160A

Code

FCC ID

Keyboard
PCB Assy

-

C9S4D84701-201

Y163504007

Control
Board
Y171501017

Key Top
set
Y171501007

Keyboard
Cable
Y171501006

Product Support Bulletin
Subject:

Equity Series HDD Controllers Jumper Settings

Date:
Page:

6/12/89
1 of 8

PSB NO.: S-0070A
Originator: APA ap’

This bulletin provides information on the jumper settings for the hard
disk controllers used in Epson Equity computers.
Please refer to the following pages for information regarding specific
hard disk controllers:

Model #

Page #

WD1002A - WX1 . . . . . . . . . .

2

WD1002S - WX2 . . . . . . . . . .

3

WD1003 - WAH

. . . . . . . . .

4

WD1002 - WAH

. . . . . . . . .

5

. . . . . . . . . . . . . . . .

6

WHDC

WD1006S - WAH . . . . .

.

7

ACB - 2320 . . . . . . . . . . . . .

8

HDD Controller WD1002A-WX1 (8-bit)
Model number --------

-- Extra jumper

FACTORY SETTINGS
Position

Description

W1

N/A

Not used.

W2

N/A

Not used.

W3

1 to 2

BIOS ROM is enabled (on controller).

W4

2 to 3

Device address 320H.

W5

* hard-wired 1 to 2

BIOS ROM size (32K or 64K).

W6

2 to 3

Reduced write current (< = 8 heads).

W7

* hard-wired 1 to 2

IRQ 5.

W8

2 to 3

Disk controller I. D. (set to be the first).

Jumper

* No jumper pins - 1 and 2 are connected by a PCB board etch.

HDD Controller WD1002S-WX2 (8-bit)
Jl

‘--Extra jumper

I

FACTORY SETTINGS
Jumper

0

I

Model number--j

Position

Description

W1

1 to 2

Required for this configuration.

W-2

1 to 2

Required for this configuration.

W3

1 to 2

BIOS ROM is enabled (on controller).

W4

2 to 3

Device address 320H.

W5

* hard-wired 1 to 2

BIOS ROM size (32K or 64K).

W6

2 to 3

Reduced write current (< = 8 heads).

W7

* hard-wired 1 to 2

IRQ 5.

* No jumper pins - 1 and 2 are connected by a PCB board etch.

HDD Controller WD1003-WAH (16-bit)
Model number

FACTORY SETTINGS
Jumper
W1
W2
W3
W4
W5
W6

Position
1 to 2
No jumper
* No jumper
2 to 3
2 to 3
2 to 3

* No jumper pins.

Connection of LED indicator cable :

Description

Model

Pin 1 of J6

Status read is latched.
Primary address selected.
Required for this configuration.
Required for this configuration.
Standard configuration.
Standard configuration.

Equity III
Equity II +
Equity III +

Orange wire
Blue wire
Red wire

HDD Controller WD1002-WAH (16-bit)

FACTORY SETTINGS
Model number -~ j
Jumper

Position

Description

W1

1 to 2

Primary base address.

W2

Center to NL

HDD activity LED only lights when the controller accesses the drive.

Connection of LED indicator cable :

Model

Pin 1 of J4

Equity III
Equity II +
Equity III +

Orange wire
Blue wire
Red wire

HDD Controller WHDC (16-bit)
CN6
n l
:
-4

0

FACTORY SETTINGS

Connection of LED indicator cable :

Jumper

Position

Description

Model

Pin 1 of CN6

* JP1 (J1)
* JP2 (J2)
* JP3 (J3)
JP4 to JP8

*2 to 3 (B to C)
* 1 to 2 (A to B)
* 1 to 2 (A to B)
No jumper pins.

Primary address selected.
Status read is non-latched (select = drive busy).
WAH mode (dual HDD controller).
Hardwired to factory settings.

Equity III
Equity I I +
Equity I I I +

Orange wire
Blue wire
Red wire

* “JP” may labeled as “J”, “1” as “A”, “2” as “B” and “3” as “C”.

HDD Controller WD1006S-WAH (16-bit)

Model number

FACTORY SETTINGS

Connection of LED indicator cable :

Jumper

Position

Description

Model

Pin 1 of J1

W1
W2
W3
W4
W5
W6

* 1 to 2
1 to 2
No jumper
* No jumper
* 1 to 2
* No jumper

LED lights for drive selection (non- latched).
No reduced write current,
Enables cacheing.
Isolates mounting bracket from logic ground.
Primary controller port.
Non-latched mode.

Equity 386/20

Red wire

* No jumper pins.

HDD Controller ACB-2320 (16-bit)

FACTORY SETTINGS
Jumper
J5
J6
J7
J8
J9, J10, J11
J12
J13

Position
No jumpers
No jumpers
No jumper
No jumpers
No jumpers
1 to 2
No jumper

Description

Connection of LED indicator cable :
Model

Used for hardware port addressing.
Equity 386/20
Manufacturing test points (DO NOT JUMPER).
Serial monitor output (DO NOT JUMPER).
Manufacturing test points (DO NOT JUMPER).
Not used.
Selects IRQ 14.
ACB-BIOS disabled (no ROM present in location U25).

Pin 1 of J4
Red wire

EPSON AMERICA, INC.

PRODUCT SUPPORT BULLETIN

SERVICE
PSB NO. : S-0068

DATE:

1/25/89

ORIGINATOR:

RE

PAGE: 1 of 6

II AND III MAIN BOARD JUMPER CONFIGURATIONS

SUBJECT: EQUITY I,

This bulletin describes the jumper locations and settings
on the Equity I MRS board and Equity II MCY board used for
configuring the computers for third party keyboards and for
It also describes the
enabling an 8087 math coprocessor.
various releases of the Equity II MCY boards and the features
that each version supported.
The Equity III main board dip switch settings, to set up or
change system configuration, are also provided.
Index
Equity

I

MRS

Board

jumpers........................Page

2

Equity

II MCY Board P/N Y1442071000 Rev. OO.......Page 3

Equity

II MCY Board P/N Y1442071000 Rev. O1.......Page 4

Equity

II MCY Board P/N Y1442071000 Rev. O2.......Page 4

Equity II MCY Board P/N Y1442075000 . . . . . . . . . . . . ..Page 5
Equity II MCY Board P/N Y1442076000 . . . . . . . . . . . . ..Page 5
Equity

EPSON

III Main

AMERICA

Board

SERVICE,

Dip-switch

23610

TEL0

configuration....Page

AVENUE,

TORRANCE,

CALIF.

6

90505

u

EQUITY I MARS

BOARD

CONFIGURATIONS

JUMPER

I

I

I

I

CN2

CN1

1

8250

1

i

CN3

8087 socket 3D

1

MRS-MT

BOARD

8OC88

CPU

MARS

BOARD

4D

CN12 CN11

FDD(B) (A)

ml

[ROM
B I O S ]

CN10 CN9

PLEASE NOTE
Since setting the
jumpers requires
almost complete
disassembly of the
Equity I computer
it should be done
only by authorized
Epson Customer Care
Centers.

1

opt. 256KB
RAM Board
CN5

82C59

I

1
A

=p]

Reset

Dip

Switch

Keyboard

* NON-EPSON KEYBOARD SUPPORT - Install jumpers in positions J2 and
position J3 (Early systems did not have this capability and do not
have these jumper positions installed.)
NOTE: DO NOT ATTEMPT TO USE THE EPSON KEYBOARD WITH THESE JUMPERS
INSTALLED AS DAMAGE WILL RESULT!
* 8087 SUPPORT - Remove the jumper from position J1.
* EGA MONITOR SUPPORT - Set dip switches 6 and 7 to the on position.
----- Page 2 of 6 -----

EQUITY II MCY BOARD Y147201000 REV. 00 JUMPER CONFIGURATIONS

Reset

Dip Switch

Vol.

Keyboard

JUMPER CONFIGURATIONS
* There are no jumpers on this version board. The board is hard-wired
to provide RAM refresh to the option slots.
* An 8087 coprocessor cannot be used.
* There is no provision for using alternate keyboards.
----- Page 3 of 6 -----

EQUITY II MCY BOARD Y147201000 REV. 01 & 02 JUMPER CONFIGURATIONS

MCY board Y147201000
revision 01 and 02
differences.
Revision 02 MCY
boards have the
following improvements over the 01
revision MCY board.
* Serial port works
over 1200 baud.
* Concurrent operation of 8087 &
optional Dynamic
RAM or EGA/VGA.
* Topview fix incorporated on
MCY (main) board.

Reset
JUMPER

Dip Switch

Vol.

Keyboard

CONFIGURATIONS

* J1 and J2 should be in position 2 to enable DMA RAM refresh to the
option slots for expanded memory boards or EGA/VGA video boards.
An 8087 will function concurrently with dynamic RAM boards on
Rev. 02 boards with the jumpers in position 2.
* J1 and J2 should be in position 1 to disable DMA RAM refresh. The
V30 runs about 20% faster in this position.
8087-2 enabled on
Rev. 01 MCY board.
* J3 and J4 are not available on these versions of MCY board.
Non-Epson keyboards cannot be used.
----- Page 4 of 6 -----

EQUITY II MCY BOARD Y147205000 & Y147206000 JUMPER CONFIGURATIONS

MCY board Y147205000
and Y1472056000
differences.
MCY P/N Y147206000
boards have the
following improvements over the
Y147205000 board.
* Serial port works
over 1200 baud.
* Concurrent operation of 8087 &
optional Dynamic
RAM or EGA/VGA.
* Topview fix incorporated on
MCY (main) board.
On
Batt
Off

Reset

I

JUMPER

Dip Switch

Vol.

Keyboard

CONFIGURATIONS

* J1 and J2 should be in position 2 to enable DMA RAM refresh to the
option slots for expanded memory boards or EGA/VGA video boards.
The 8087 will work in DMA refresh mode with the Y147206000 board.
* J1 and J2 should be in position 1 to disable DMA RAM refresh.
The V30 runs about 20% faster in this position. The jumpers must be
in position 1 to enable an 8087 with the Y147205000 MCY board
* J3 and J4 should be in position 1 to use an IBM compatible keyboard.
* J3 and J4 should be in position 2 (default) for the Equity II
keyboard.
NOTE: DO NOT ATTEMPT TO USE THE EPSON KEYBOARD WITH JUMPERS J3 AND
J4 IN POSITION 1 AS DAMAGE MAY RESULT!
----- Page 5 of 6 -----

EQUITY Ill MAIN BOARD DIP-SWITCH SETTINGS

DIP
Switch

SWITCH

FUNCTIONS

Function

(*Factory
On

settings)
Off

1-1

RAM size
Monitor type
PROM size

Disable
640KB*
Monochrome*
Color
See Table 4-2 in User's Guide

2-1

Serial Port
Unused
Floppy Disk FDC
Parallel Port

Enable*

1-2
1-3 - 1-6

;I;
2-4

Enable*
Enable*

Disable
Disable*
Disable
Disable

----- Page 6 of 6 -----

EPSON
EPSON AMERICA, INC.

PRODUCT SUPPORT BULLETIN

SERVICE
PSB NO.:

S-0065

DATE:

1/5/89

ORIGINATOR:

AGE: 1 of 1

REM/

SUBJECT: DISABLING THE FLOPPY DISK CONTROLLER IN EPSON COMPUTERS

This bulletin covers the ability or inability to
floppy disk controller in the Epson computers.

COMPUTER

Equity I

II

Equity

III

I+

Equity II+
1OMHz
12MHz
Equity

the

HOW

No

Equity

Equity

FDC CAN
BE
DISABLED

disable

III+

No

Yes

CPU Board - Switch 2-3 off

Yes

CPU Brd - Jumper 1 in Position B

Multi-function

No
Yes

Board

- Jumper 2 in Position B

Yes

Multi-function

Board

- Jumper 1 in Position B
- Jumper 2 in Position B
Apex

Apex Plus

EPSON

AMERICA

Yes

Motherboard

-

Remove

Jumper

El

No

SERVICE,

23610

TEL0

AVENUE,

TORRANCE,

CALIF.

90505

PSB No.: S-0062I
Page: 1 of 18

EQUITY III
VER
L1.07
H1.07
L1.09
H1.09
L1.10
H1.10

PART #

KQQNK1019A
KQQNK1020A
KDPN0000100
KDPN0000110

DESC

27128D-2
27128D-2
27128D-2
27128D-2
27128D-2
27128D-2

TYPE

M27C128
M27C128
M27C128
M27C128
M27C128
M27C128

LOC

U147
U146
U147
U146
U147
U146

REASON

INITIAL RELEASE
To allow the use of drives with more
than 8 heads.
Requires U99 chip upgrade to
DEC01A. Fixes problems with drive
type table, 3270 emulation, Novell 286
v2.0a and Thesys Fastcard III.

Product Support Bulletin
Subject:

Using Expanded Memory with Equity and Apex Computers

Date:
Page:

3/2/90
1 of 6

Q1.
A.

Q2.
A.

PSB No:
Originator:

S-0047C
KAS ‘/“p&

What is Expanded Memory?
Conventional memory, managed by MS - DOS, is limited to 640K. In
response to the need for greater amounts of accessible memory, the
LIM EMS (Lotus/Intel/Microsoft Expanded Memory Specification) was
introduced in 1984. EMS, version 3.2, provides usable memory
beyond the 640K limit through “bank switching”. The expanded
memory is divided into 16K portions called “pages”. The computer
accesses these pages through a “page frame” or “window” which is
64K of memory located between 768K and 896K in 80286 - based
systems and between 800K and 960K in 8086 - or 8088 - based
systems. 16K pages of memory are allocated for an application’s
use and the EMM (Expanded Memory Manager) handles the job of
mapping the pages in and out of the page frame as they are
needed. However, in order to make use of expanded memory, the
software must be written to take advantage of the EMS. Software
such as Lotus 1 - 2 - 3, Microsoft Windows and Borland’s SideKick
Plus make use of expanded memory. EMS is limited to 8Mb of
expanded memory.
What is EEMS?
A superset of EMS, AQA EEMS (AST/Quadram/Ashton - Tate
Enhanced Expanded Memory Specification) provides greater flexibility
in the mapping of expanded memory. However, it also uses the
technique of “bank switching” and has its own memory manager
which accommodates such specially written software as Quarterdeck’s
DESQview. EEMS is also limited to 8Mb of expanded memory.

PSB No: S-0047C
Page: 2 of 6
Q3.
A.

Q4.
A.

Q5.
A.

What about the 155Mb RAM listed as the maximum for the Equity
III +?
This larger amount of RAM is the maximum usable memory range
for an 80286 microprocessor and generally refers to extended
memory. Extended memory starts at the 1Mb boundary and extends
out to 16Mb. As it requires a 24 - bit address to access memory in
this range, extended memory is handled by the protected mode of
the 80286. Examples of currently available software that can switch
into protected mode to use extended memory are Framework II,
AutoCAD, the VDisk RAM disk and Xenix OS.
How does LIM EMS 4.0, the latest version, differ from the earlier
version, LIM EMS 3.2?
EMS 4.0 supports up to 32Mb of expanded memory where EMS 3.2
supported only 8Mb. EMS 4.0 has been changed to make it easier
for applications to share expanded memory. In EMS 4.0, page
mapping has been streamlined and new functions allow application
programs to dynamically increase and decrease the amount of
expanded memory allocated to them. In previous versions of EMS,
the page frame was located in an unused 64K block of memory
between 640K and 1Mb. EMS 4.0, subject to limitations in the
system hardware, supports the page frame anywhere in the first 1Mb
of memory. Before EMS 4.0, the page frame held four pages. Now
you can define a page frame of up to eight pages in memory above
640K. The size of the page frame is limited only by the amount of
available memory. There has also been a change to support the
smaller than standard (16K) memory pages used by some expanded
memory boards.
Is EMS 4.0 compatible with my old expanded memory board?
The EMM 4.0 driver works with existing hardware. You don’t need
to buy a new expanded memory board. However, until you use
applications that have been written to take advantage of EMS 4.0,
you probably won’t notice much improvement in performance over
your older version.

PSB No: S-0047C
Page: 3 of 6
Q6.

What memory expansion boards are compatible with the Equity I and
Equity II?

A.

The following boards have been tested by Epson in the Equity I and
II:
All Card w/MMU Multifunction
Liberty PC
Mini Magiccard (EV - 138)
AST SixPak Premium
AST Rampage

All Computers, Inc.
Quadram Corporation
Everex Systems, Inc.
AST Research
AST Research

Q7.

What memory expansion boards are compatible with the Equity Ill?

A.

The following boards have been tested by Epson in the Equity Ill:
Grande Byte
Intel Above Board AT
Liberty AT
AST Advantage
AST Rampage AT
AST Ramvantage

STB Systems
Intel Corporation
Quadram Corporation
AST Research
AST Research
AST Research

Q8.

What memory expansion boards are compatible with the Equity I +?

A.

The following boards have been tested by Epson in the Equity I +:
64/256KB Expansion Option
Above Board PC (1985)
Fastcard IV (1.6)

IBM
Intel Corporation
Thesys

Q9.

What memory expansion boards are compatible with the Equity le?

A.

The following boards have been tested by Epson in the Equity le:
64/256KB Expansion Option
Quad Board II
Fastcard IV
RAMpage

IBM
Quadram
Thesys
AST Research

Note: The Intel Above Boards do not currently operate reliably with
the Equity le.

PSB No: S-0047C
Page: 4 of 6
Q10.

What memory expansion boards are compatible with the Equity II +
and Equity Ill + (10MHz models)?

A.

The following boards have been tested by Epson in the Equity II +
and Equity Ill + (10MHz models):
Advantage Premium
Rampage 286 *
Above Board 286
Above Board 286 p/s
*
Grande Byte
*
Rio Grande
Elite 16

AST Research
AST Research
Intel Corporation
Intel Corporation
STB Systems
STB Systems
Profit Systems

* Will run at 8MHz, not at 10MHt.
Q11.

What memory expansion boards are compatible with the Equity II +
and Equity Ill + (12MHz models)?

A.

The following boards have been tested by Epson in the Equity II +
and Equity III + (12MHz models):
Rampage 286 Plus
Elite 16
Above Board Plus

AST Research
Profit Systems
Intel Corporation

NOTE: Previously boards from Micron Technology were listed as compatible
with the 12MHz models of the Equity II + and Equity Ill +. They
have been removed from the list because Micron no longer produces
ISA memory boards.
Q12.
A.

How do you expand the memory of the Equity 386/20?
Memory expansion in the Equity 386/20 can be accomplished by
adding SlMMs (single in - line memory modules) to the CHET - RM
board. Both 256K and 1Mb SlMMs are available from Epson
America. The 256K SlMMs are sold in 1Mb kits and the 1Mb
SlMMs are sold in 2Mb kits. Compatible third party 1Mb SlMMs are
available from Matsushita, Toshiba and CDC Enterprises. You can
also use third party memory expansion boards such as those listed
above for the Equity II +/Ill +.

PSB No: S-0047C
5 of 6
Page:
Q13.
A.

Are there any guidelines to installing the SlMMs in the Equity
386/20?
Yes, when SlMMs are installed to increase memory beyond 1Mb,
they must be installed so that banks of SlMMs are installed as
matched pairs. See the matrix below:
Memory

Bank 0

1MB
2MB
4MB
4MB
8MB
10MB
16MB

4X256KB
4X256KB
4X256KB
4X1MB
4X1 MB
4X1 MB
4X1 MB

Note:

Bank 1

Bank 2 Bank 3

4X256KB
4X256KB 4X256KB 4X256KB
4X1 MB
4X1 MB
4X1 MB

4X256KB 4X256KB
4X1 MB 4X1 MB

Refer to PSB S - 0095 for 18MB RAM Setup information.

Q14.

Is there a driver supplied with the Equity 386/20 to allow the use of
the extended memory as expanded memory?

A.

Yes, the Equity 386/20 system software includes the device driver
EEMM386EXE. This driver emulates LIM EMS 4.0 memory using
the extended memory supplied by the additional SIMMs. It will
support only the onboard memory above 1 MB, up to 15MB. This is
the maximum memory that can be installed on the CHET- RM
board. It will not support memory installed on memory expansion
boards.

Q15.

Are there any expanded memory boards that are compatible with the
Equity LT?

A.

No, the option slots on the LT require a special connector. The
hard drive controller and the LT cartridge modem are the only option
cards currently available from Epson America.

Q16.

What expanded memory boards are compatible with the Apex by
Epson?

A.

The Above Board PC from Intel Corporation has been tested by
Epson in the Apex.

PSB No: S-0047C
Page:
6 of 6
Q17.

Are there any general guidelines for determining the chip speed to
install on the memory expansion boards?

A.

Yes, if the CPU speed is 8MHz or less, use 150ns RAM chips. If
the CPU speed is 10/12MHz, use 120ns RAM chips.

Q18.

Is there anything that should be kept in mind during the installation
procedure for the memory expansion boards?

A.

Yes, when installing the memory boards in the Equity II + and Equity
Ill + (12MHz models), remember that the bus speed is 12MHz. For
example, the Intel Above Board 288 and Above Board Plus allow
you to set up the bus speed and chip speed in their installation
programs.

Q19.

What is meant by backfilling memory when using software such as
DESQview?

A.

Backfilling is a function of many expanded memory boards which
allows a portion of the board’s memory to be used as conventional
memory. In this way, you could turn a 256K system into one with
840K memory or more. In certain situations, you may want to
disable some of the computer’s conventional memory and the use
the memory on the expansion board (i.e. DESQview).

Q20.

Which Epson computers have memory settings that allow backfilling
memory?

A.

The Equity I, Equity I +, Equity II + and Equity Ill + allow backfill.
The Equity I comes with 256K standard and the Apex comes with
512K, thus allowing backfill. The Equity I + has DIP switch settings
allowing system memory to be disabled to 256K or 512K. The
Equity II+ and Equity Ill + have jumpers on the system memory
boards to allow memory to be disabled to 256K and 512K.

EPSON
EPSON AMERICA INC.
SERVICE DEPARTMENT

PRODUCT SUPPORT BULLETIN
DATE:
3/28/88
SUBJECT: EPSON EQUITY

I/II/III

ENHANCED

KEYBOARD

NUMBER:
S-0041
COMPATIBILITY

to provide
information
The purpose of this bulletin is
third party enhanced "AT" style
the compatibility of
with the Equity I, Equity II and Equity III computers.
1.

Keyboard

regarding
keyboards

Compatibility

The enhanced Equity "Plus" series keyboard cannot be used on an
III.
The enhanced Equity keyboard (as with
Equity
I,
II
or
which is not
requires
explicit
ROM BIOS
IBM's)
support
available in the earlier machines.
however, to use a third-party "enhanced-style"
It is possible,
IBM XT-101,
NorthGate C/T-101, Datadesk
keyboard such as the
5151. Please note that
Turbo-101,
Keytronics
101,
5150
and
early versions of the Equity I (serial numbers unavailable) and
(below serial
number
29875) were not designed to
Equity II
support any third party keyboards (they do not have any
keyboard-select jumpers on the main board).
The

correct

jumper

Equity I:
Equity II:

settings

for

non-Epson

keyboards

J2 and J3 jumpered
J3, J4 and J5 set for position

PLEASE

are:

1

NOTE

Once the above jumper changes
have been made, attempting to
use the original Epson keyboard
will result in damage to the
keyboard and Equity main board.

Page 1 of 1

EPSON
EPSON AMERICA INC.
SERVICE DEPARTMENT

PRODUCT SUPPORT BULLETIN
DATE:
SUBJECT:

3/2/88
LEAP YEAR / MS-DOS 3.1 DATE CHANGE

This bulletin describes a problem identified in
version 3.1 which was supplied with the Equity
III personal computers.

NUMBER:

S-0037

Epson's MS-DOS
II and Equity

On March 1, 1988 we discovered that the system date did not
change correctly to 3-1-1988, but indicated 2-29-1988. As you
may have guessed, MS-DOS 3.1 did not handle the February 29th
"leap day" change correctly.
Both
the Equity II
and Equity
III
use
a Real Time
Clock/Calendar with CMOS RAM to retain the date and time after
it is set with the SETUP utility program. Even though the RTC
has the correct date
(03-Ol-1988), DOS interprets it as 02-29-1988.
The easiest method of correcting
this anomaly is to set the
date in the RTC's CMOS RAM one day ahead as follows:
1.
2.
3.
4.
5.

Run the
Select
Set the
EXIT to
Re-boot

"SETUP" utility program.
REAL-TIME CLOCK.
DATE to the current date + one.
save the new date.
the system!

When MS-DOS 3.1 retrieves the date from the RTC it subtracts
the extra day and will display the correct date for system
operation.
This problem does not exist
customer decide to upgrade.

with

MS-DOS

Page 1 of 1

version

3.2

should

the

EPSON
EPSON AMERICA, INC.

PRODUCT SUPPORT BULLETIN

SERVICE
B NO.: S-0028A
UBJECT:

EPSON

DATE:
3.5"

720KB

PAGE: 1 of 1

6/29/88
FLOPPY

DISK

DRIVE

COMPATIBILITY

The purpose of this bulletin is to provide information
regarding the compatibility
of the
Epson 3.5", 720KB
floppy disk drive (Product Code A112A-AA) with the Apex
and Equity series computers.
The 3.5" floppy disk drive must be used with MS-DOS 3.2
or higher.
Please refer
information.

to

Apex

No

Equity

1

the

I

special

Not

Equity

II

Equity

III

1

table

setup

for

compatibility

required

supported

Must
Not

following

include

DRIVPARM

=

/D:1 /F:2 in CONFIG.SYSI

supported*

Equity

I+

No

special

setup

required

Equity

II+

No

special

setup

required

I

Equity

III+ 1

special

setup

required

I

No

The Epson 3.5" floppy disk drive is not compatible with the
Equity I or the Equity III.
*

Manzana Microsystems Inc. offers a 3.5", 720KB floppy disk
drive which is compatible with the Equity III computer
when used with their 3FIVE device driver.
Refer to Product Support Bulletin # S-0027A for detailed
information on
using the DRIVPARM command to configure
Equity II systems for using the 3.5" floppy disk drive.

EPSON

AMERICA

SERVICE,

23610

TEL0

AVENUE,

TORRANCE,

CALIF.

90505

E P S O N

EPSON AMERICA INC.
SERVICE DEPARTMENT

SUPPORT

PRODUCT
DATE: 12/2/87
SUBJECT: EQUITY

SERIES/APEX

MATH

BULLETIN

NUMBER:
S-0019B
CO-PROCESSOR SELECTION GUIDE

The purpose of this bulletin is to assist in selecting the
appropriate numeric co-processor for use in the Epson,Equity
series computers and the Epson Apex computer.
Use the following table to determine
Co-Processor is recommended for the

EPSON
COMPUTER

CPU
SPEED

which type of Numeric
corresponding computer.

NUMERIC
CO-PROCESSOR

80287-6

*

NXP
SPEED

6 MHz

Product enhanced with increased CPU speed of 6/8/12Mhz
starting with all units manufactured in the U.S.A..

Page 1 of 1

E P S O N

EPSON AMERICA INC.
SERVICE DEPARTMENT

BULLETIN

SUPPORT

PRODUCT

NUMBER: S-0018

DATE: 09/16/87
SUBJECT: Equity Series Compatibility Certifications

Three more third-party vendors have published compatibility certifications for
Epson Equity series PCs. Santa Cruz Operations, Fox Research Inc. and
Manzana Microsystems Inc. now have certified their software and/or hardware
products as specified below.
Santa Cruz Operations
SCO has tested and certified the latest versions of their implementation of
Xenix System V.

I
I

Xenix System V 286AT Version 2.2.1
I
Xenix System V 86XT Version 2.2.1

Equity III
E q u i t y I II I +

--IEquity

1+

1

When used with products such as the Arnet Multiport serial boards, this allows
you to set up a multi-user, multi-tasking system. Many businesses have begun
looking at PC-based Xenix as an alternative to a much more costly
minicomputer installation.
Fox Research, Inc.
Fox Research offers a full range of hardware and software products for local
area networking (LAN) solutions.

I

PRODUCT NAME

I

10-Net Local Area Network
10-Net SNA/BSC Turbo LAN
Mainframe Gateway
10-Base

PRODUCT DESCRIPTION

I

I

COMMENTS

I

Ethernet Standard or
StarLan Standard

Tested on:
I Equity I+, III+ ’

I

IBM 30xx, 43xx or 370
Communications

Equity It, III+

I

Relational Database
Manager, Release 3.0

I

Tested on:
Equity I+, III+

Page 1 of 3

Fox Research. Inc. continued

I

PRODUCT NAME

I

10-Net RS-232 Gateway
I
10-Net RS-232 PC Remote
10-Test Diagnostic Module
10-Net Repeater
10-Net “Boot” ROM Chip

I
I
I

PRODUCT DESCRIPTION

I

I

COMMENTS

Communications bridge
between LANs

Tested on:
Equity It, III+

Remote communications
to LAN

Tested
on:
Equity I+, III+

LAN Diagnostics

Tested on:
Equity I+, III+

Network extender,
2000 feet

Tested on:
Equity It, III+

Auto start up for PC

Tested on:
Equity It 2

1 - Tested on both Equity I+ and III+ as fileserver and workstation.
2 - Only for PC and/or PC XT type machines.
10-Net offers the choice of either bus (Ethernet) or star (StarLan) topologies.
The software supports such features as printer spooling, "CHAT" (peer-to-peer
messaging), electronic mail and bulletin board and calendar.
10-Net SNA/BSC Gateway allows PCs on the LAN to emulate 3278/79 terminals.

It also lets printers on the LAN emulate 3286/87/89 printers for cost-effective
access to IBM mainframes.

10-Net RS-232 Gateway sets up the asynchronous “bridge” between two 10-Net
LANs. The RS-232 PC Remote enables a PC in a remote location to become
part of a 10-Net LAN. Simply dial up with a standard PC modem and gain
access to the various LAN resources.
IO-Base is a relational database management system built around SQL
(Structured Query Language). Designed specifically for the networked
environment, it supports MS-DOS 3.1 or higher extended record locking calls.
There is also an optional interface module for BASIC, C and Assembler code to
allow further customization.
The “Boot” ROM allows an Equity I+ to load DOS and the LAN software from
the fileserver - it even allows for a diskless configuration. The Diagnostic
Module tests the wiring and transceiver IC integrity. The Repeater lets you
expand the range of a 10-Net LAN.

Page 2 of 3

Manzana Microsystems. Inc.
Manzana provides a variety of 3.5” floppy disk drive systems.
PRODUCT NAME

I

I
I
I

Self-Powered
Host-Powered
Internal
Self-Powered Plus *

r

Host-Powered Plus *

I

Internal Plus *

PRODUCT DESCRIPTION

I

I
I
I

I

720 KB External
(Requires MUX Card)

Tested on:
Equity II, III

720 KB External
(Requires MUX Card)

Tested On:
Equity II, III

720 KB Internal

Tested on:
Equity II, III

1.44 MB External
(Requires MUX Card)

Tested on:
Equity III
I

1.44 MB External
I (Requires MUX Card)

I

1

COMMENTS

1.44 MB Internal

Tested on:
Equity III
I

Tested On:
Equity III

*- Requires minimum of 80286 CPU.

The MUX Adapter Card does not affect the use of existing internal drives. It
also allows the Manzana external drive to mimic the “B” drive. It is not
required for internal drives.
Manzana also provides the 3Five driver software which permits the use of any
version of DOS from 2.xx on.
Santa Cruz Operations
400 Encinal St.
P.O. Box 1900
Santa Cruz, Ca. 95061
(408) 425-7222

Fox Research, Inc.
7016 Corporate Way
Dayton, Oh. 45459
(513) 433-2238

Manzana Microsystems, Inc.
P.O. Box 2117
Goleta, Ca 93118
(805) 968-1387

Page 3 of 3

EPSON
EPSON AMERICA, INC.

PRODUCT SUPPORT BULLETIN

SERVICE
SUBJECT:

PAGE: 1 of 1

DATE: 6/29/88

PSB NO.: S-0017A

EQUITY COMPUTERS AND FLOPPY DISK DRIVES

FDDs will work
There is still some
confusion regarding which
with which Equity. Here is a quick reference for FDD selection
(for detailed information, refer to PSB Number S-0001).
Equity
--- --I

Epson

Equity
I+
--- ---

Epson Q213A-AA (360 KB)
Epson A112A-AA (720 KB, 3.5")

Equity
II
--- ---

Epson Q213A-AA (360 KB)
Epson Q911A-AA (1.2 MB)2

Equity
II+
--- ----

Epson Q213A-AA (360 KB)
Epson Q212A-AA (1.2 MB)
Epson A112A-AA (720 KB, 3.5")

Equity
III
--- ----

Epson Q213A-AA (360 KB)
Epson Q212A-AA (1.2 MB)

Equity
III+
--- -----

Epson Q213A-AA (360 KB)
Epson Q212A-AA (1.2 MB)
Epson A112A-AA (720 KB, 3.5")

Q520A-AA

(360

KB)l

1 - This is the only FDD compatible with the Equity I.
2 - This is the only 1.2 MB FDD compatible with the Equity II.
One of the key issues is: NEVER USE ANY 1.2 MB FDD OTHER THAN
is slightly
THE Q911A-AA IN THE EQUITY II!
The interface
an AT-type
different from the AT "standard". As a result,
drive will work erratically (if at all). One of the problems
the directory
is a disk change error,
or continuing to use
from a previous disk.
MS-DOS 3.2 does not allow sufficient
Also on the Equity II,
Consistent
retries on diskette read/write with the Q911A-AA.
when
attempting
to
"Abort, retry, ignore?"
messages
result
retry
will
overcome
this
log a new disk.
Typically, "r" for
situation. MS-DOS 3.2 operation with the Q213A-AA is correct.

EPSON

AMERICA

SERVICE,

23610

TEL0

AVENUE,

TORRANCE,

CALIF.

90505

EPSON

EPSON AMERICA INC.
SERVICE DEPARTMENT

PRODUCT

SUPPORT

DATE: 08/25/87
SUBJECT: Equity Series Compatibility Certifications

BULLETIN
NUMBER: S-0016

Recently, four leading vendors of communications products have issued
certifications of compatibility for the Epson Equity series of PCS. The products
range from local-area networking to multi-user applications to micro-tomainframe connectivity.
Arnet Corporation
Arnet Corporation produces multi-user expansion boards that allow terminals to
be connected to PCs using multi-user operating systems. They have certified
the Equity I+ and III+ for use with their products.
A typical configuration would be an Equity III+ host, the Xenix operating
system, an Arnet Multiport Multi-8 board and cabling to connect other PCs
(such as the Equity I+) or standard ASCII terminals. Other compatible
operating systems include Microport Unix, Theos, BOS, PC MOS and Others.
The Arnet Twin port offers 2 serial ports for smaller installations.
Multiport board is available in Multi-4 or Multi-8 configurations, and
Multi-4 can be upgraded; The Smartport is an intelligent version of
Multiport that uses the 80186 processor to handle heavy data transfer.
Smartport is compatible only with the Equity III+.

I

The
the
the
The

lConfirmation o f Compatibility1

IArnet Product 1

E q u i t y I t 1 E q u i t y III+ 1

* Smartport is compatible only with AT type systems
IDEAssociates,

Incorporated

Offering a wide range of micro-to-mainframe and other connectivity and
enhancement products, IDEAssociates has certified the Equity It and III+ for
use with their 327x and 525x mainframe products (both bisync and SNA/SDLC),
their async 1200 baud modem, plus their range of hard disk and tape drives
and memory products.
Page 1 of 3

Recognized as a top alternative to IBM connectivity products, IDEAssociates
provides a full selection of 3270/78 and 5250/51 hardware and software
solutions for micro-to-mainframe applications. Please see the following list for
a complete breakdown of their Epson-compatible products.
Epson-compatible Products - IDEAssociates

Page 2 of 3

3Com Etherlink/Etherlink+
3Com Corporation has certified the entire Equity series for use with the
Etherlink and Etherlink+ networks, as follows:

*
**

Equity I not tested as a server. Workstation compatible.
Equity II has limited server capability; intended primarily
as a workstation.

We are uploading a copy of 3Com’s Application Note for the Equity II to the
Product Support BBS. Please feel free to read and/or download it.
Standard Microsystems Corporation
Finally, SMC has certified their ArcNet Network Controller Boards* on the
Equity I+ and III+. They have verified correct operation with all hardware
topologies - bus, star, and fiber optic. The software tested includes:

SMC NETBIOS Emulator
Novell Advanced Netware/86
Novell Advanced Netware/286
Novell SFT Level 1
Western Digital ViaNet
* ArcNet PC100, PC200, PC300 -- Rev. D and above
ArcNet PC110, PC220, PC330 -- All

Page 3 of 3

a

EPSON
EPSON AMERICA INC.
SERVICE DEPARTMENT

PRODUCT SUPPORT BULLETIN
DATE:
3/9/88
SUBJECT: MS-DOS

NUMBER:
3.2

FOR

THE

EQUITY

S-0014A

I/II/III

on the
information
The purpose of this bulletin is to provide
availability of MS-DOS 3.2 for Equity I, Equity II and Equity III
installing MS-DOS 3.2
systems. Also included are instructions for
on hard drive systems currently using earlier revisions of MS-DOS.
The Equity I+ MS-DOS 3.2 package has been certified for use with
and Equity III. This software is now
the Equity I,
Equity II
available for customers who wish to upgrade their system.
It can be ordered
under Product Code Q390A-AA This
includes
MS-DOS
3.2/GW-BASIC
package
documentation for the Equity I+.

$85.00 retail.
software
with

The following is a simple procedure to perform the transfer of the
new MS-DOS 3.2 files to an existing hard disk system.
1.

Insert the MS-DOS 3.2 diskette into drive A.

2. If the system is powered up, press RESET.

If not, turn the

system on.
3. At the A> prompt, type SYS C: and press ENTER.
The
will respond with the message, SYSTEM TRANSFERRED.

system

4. At the A> prompt, type REPLACE A:\*.* C:\ /S and press ENTER.
This will replace the existing MS-DOS files with version 3.2
files.
5. At the A> prompt, type REPLACE A:\*.* C:\[path] /A and press
ENTER. This will copy new MS-DOS files to the subdirectory
indicated by [path].
6.

Remove the MS-DOS
into drive A.

diskette

and

insert

the

GW-BASIC

diskette

7. At the A> prompt, type C: and press ENTER.
8. Repeat steps 4 and 5 above.
5 as A>, will now be C>.)
9.

(Prompt,

listed in steps 4 and

Remove the GW-BASIC diskette from the drive.
Put the
original diskettes in a safe place for storage.
Page 1 of 1

E P S O N

EPSON AMERICA INC.
SERVICE DEPARTMENT

SUPPORT

PRODUCT
6/8/87
DATE:
EPSON
SUBJECT:

EQUITY

ENHANCED

KEYBOARD

NUMBER:
COMPATIBILITY

S-0012

The purpose of this bulletin is to provide information regarding
style Equity Plus series
the compatibility of the enhanced "AT"
keyboard with the Equity
family of computers and a general
statement on software support.
With the introduction of the Equity It and III+, Epson brought out
an enhanced keyboard design - very similar to the enhanced
keyboard introduced by IBM on the Model 339 AT. There are a couple
of areas to make note of.
1.

Keyboard

Compatibility

The enhanced keyboard cannot be used on an Equity -‘I, II or
III. The enhanced keyboard (as with
IBM's) requires explicit
ROM BIOS
support. The Equity It and Equity III+ incorporate
this support; the earlier machines do not.
It is possible, however, to use a third-party "enhanced-style"
keyboard (such as the Datadesk Turbo-101) which offers switch
selection for PC/XT or AT usage.
(Please note that early
versions of the Equity I and II did not support any third
party
keyboards.)
The

correct

jumper

Equity I:
Equity II:

settings

for

non-Epson

keyboards

are:

J2 and J3 jumpered
J 3 , J4 and J5 set for position 1

Also note that once the above jumper changes
have been made,
attempting to use the Epson keyboard will result in damage to
the keyboard-and main board.
2.

Software

Compatibility

Not all
applications "know"
about the enhanced keyboard. The
and mapping are subtly different. If you experience
scan codes
difficulties with certain applications
(particularly any that
re-program the keyboard), contact
the software vendor and ask
about enhanced keyboard support.

Page 1 of 1

EPSON
EPSON AMERICA, INC.

P RODUCT

SERVICE
PSB

NO.:

SUBJECT:

S-0001C
EQUITY

I DATE:
SERIES

S UPPORT B ULLETIN
PAGE: 1 of 5

6/29/88

FDD/HDD

COMPATIBILITY MATRIX

This document provides updated compatibility information on
floppy disk drives, hard disk drives and hard disk controllers
which have been supplied or are currently being supplied with
the Equity series computers from Epson America, Inc.
Also included is information on which low level hard disk
format procedures should be used with the various versions
of hard disk controller boards.
Please refer to the Equity I, II, III IBM-PC COMPATIBLE
HARDWARE/ SOFTWARE DIRECTORY supplied by Epson America's
Marketing Department for information regarding third party
floppy disk and hard drive compatibility.

EPSON

AMERICA

SERVICE,

23610

TEL0

AVENUE,

TORRANCE,

CALIF.

90505

1

NUMBER:

S-0001C

PAGE:

2 of 5

JU-595-10 PANASONIC

COMMENT
A.

CODE

EXPLANATIONS:

Requires insulating sheet when installed in lower position in
Equity II. See TIB Equity 11-006.
B. Jumper block SS1 - Position DS0 for drive A, DS1 for drive B
C. Equity I must have ROM BIOS version 2.21(MSA-B4) and MS-DOS 2.11
Release 1.04 or higher to use this drive.
D. Must set drive select jumpers on FDD logic board for A
(position S1) or B (position S2).
E. It is not necessary to remove the terminating resistor pack.
F. Handle drive with care - possibility of short circuit between
screw head on frame and FDD logic board (could damage FDD)!
G. Terminator must be removed when used as 2nd floppy drive unit.
H. See Product Support Bulletin S-0020 for set-up information.
I. Same as MD-5201-57 except comes configured as 2nd drive.
J. Jumper block JJ1 - Position S1 for drive A, S2 for drive B.

I

NUMBER:

PAGE:

S-0001C
EQUITY SERIES HARD DISK DRIVE

3 of 5

COMPATIBILITY MATRIX

HMD-720-802

COMMENT

CODE

EXPLANATIONS:

A. Comes with black front bezel.
B.

When

used

with

Equity

III use format procedure #2 on page 5.

C. Follow format procedure #2 on page 5. The NCL Hard Disk
Controller Board (NDC5027-49) and DK-505-2 HDD must be used
D.

For Equity III - Only use HMD-720 hard drives NOT stamped
with:
"Do not use with Equity III”.

NUMBER:

PAGE:

S-0001C

EQUITY SERIES
PRODUCT
HARD

HARD

DESCRIPTION

DISK CONTROLLER

DISK CONTROLLER
COMPATIBLE

I

I+

WITH

II

4 of 5

COMPATIBILITY MATRIX
EQUITY

II+

COMMENTS

MODEL

III

III+

WD1002S-WX2C027
ROM 62-000062-010

X

WD1002S-WX2C027
ROM 62-000062-010-1

X

X

X

B

X

X

B,C,D

X

A

WD1002A-WX1E027
ROM
or

62-000062-010-1
62-000062-13

X

NCL

NDC5207-49

X

B,E

WD1002-WAH
ROM 62-001020-10
AND 62-001027-11

X

EPSON WHDC BOARD
P/N Y127203000
ROM VERSION
WD1015PL-27 or -27B
62-002008-011 or -061

X

X

F,G

CODE EXPLANATIONS:
A. Follow format procedure #2. NCL Hard Disk Controller
(NDC5027-49) and DK-505-2 HDD must be used together.

Board

B. Follow format procedure indicated on PSB # S-0005.
C.

Short

version

Western

Digital

HDC

board.

D.

ROM BIOS 62-000062-010-1 and 62-000062-13
Either ROM may be found on this board.

Released
are

late

1986.

equivalent.

E. This version HDC ROM BIOS with WD-1015-24 firmware CPU will
not allow auto-boot from hard disk. WD-1015-14 firmware CPU
will work.
F.

ROM BIOS # WD1015PL-27 is equivalent to 62-002008-011 these
ROMs have been updated to # WD1015PL-27B or 62-002008-061
which are also equivalent to each other.

G. HDC ROM BIOS must be revision

“B” to work with XENIX software.

NUMBER:

PAGE:

S-0001C
HARD

DISK

FORMATTING

5 of 5

INFORMATION

*****IMPORTANT**************IMPORTANT **++****+**+*+++++IMpQRTANT*****
*
*
*
*
ALWAYS FORMAT THE HDD WITH THE SAME VERSION CONTROLLER
*
*
BOARD AND HDC CPU FIRMWARE VERSION IT WILL BE USED WITH.
*
*
IT IS NOT NECESSARY TO REFORMAT IF THE ROM BIOS IS
*
*
UPGRADED AS LONG AS THE SAME FIRMWARE CPU IS USED.
*
*
FOR

LOW

LEVEL FORMATTING:

1. EQUITY I/II F O R M A T
See PSB # S-0005 titled Equity I/II HDD intialization
procedure using software which is included with each system.

2. EQUITY III F O R M A T
a.

Run PFORMAT - Enter bad tracks - Time approx. 5 minutes.

b. Run HDFMTALL - Time approx. 8 minutes.
C.

Run HDPART - Time approx. 2 minutes.

d. Run HDFORMAT - Time approx. 5 minutes.
3.

EQUITY

III+ -

See

Product

Support

Bulletin

#

S-0006

Notes:

1. Early

production Equity I units without HDDS must be
upgraded with the CAC version VF0 SUB-board to operate
with a hard drive.

2. Equity I, DOS ver. 2.11 problem - Bad sector information
erased when HDFORMAT (MS-DOS utility) executes formatting.
Corrected in DOS version 2.2 (MSA-B3) and 2.21 (MSA-B4).
3.

Equity I/II - HDFMTALL erases bad sector
Delete HDFMTALL from the system disk.

information.



Source Exif Data:
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : No
Encryption                      : Standard V1.2 (40-bit)
User Access                     : Print, Fill forms, Extract, Assemble, Print high-res
Producer                        : Acrobat Distiller 4.0 for Windows
Create Date                     : 1999:10:07 14:35:39
Title                           : Equity III - Product Support Bulletin(s)
Subject                         : This document contains information such as tips for using the product or common questions and answers.
Modify Date                     : 2007:02:26 07:42:41-08:00
Page Count                      : 45
Page Mode                       : UseOutlines
Page Layout                     : SinglePage
EXIF Metadata provided by EXIF.tools

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