Page:
The purpose of this bulletin is to provide the 80386 Accelerator board test
results, conducted by the Computer Product Support Center, involving the
SOTA 386si from SOTA Technology, inc.
The Equity models tested were the Equity I, Equity II Equity I + and Equity le.
The Apex models tested were the Apex, Apex Plus and Apex 100. All were
tested with Norton Utilities and MS - DOS.
The table below shows compatibility and the Norton SI rating of the
various systems.
Model
Equity I
Equity I+
Equity/Apex Compatibility with the SOTA 386si
3/02/90
1 of 3
Norton SI
12.0
12.0/16.9
Compatibility
Functioned normally with Norton Utilities and
MS- DOS 2.11
Functioned normally with MS - DOS 3.3 and
Norton Utilities at both CPU speeds.
PSB No:
Originator:
S-0111
MS ;. CL5
Equity le
Equity II
Apex
Apex Plus
Apex 100
NA
14.3
15.9
11.5
12.0/16.9
Unable to boot at 10MHz. Performance
erratic at 4.77MHz
Functioned normally with MS - DOS 3.2 and
Norton Utilities. (Tested only at 7.16MHz.)
Unable to boot at 4.77MHz. Functioned
normally at 8MHz with MS - DOS 3.2 and
Norton Utilities.
Unable to boot at 9.54MHz. Functioned
normally at 4.77MHz with MS - DOS 3.2 and
Norton Utilities.
Functioned normally with MS - DOS 3.3 and
Norton Utilities.
PSB No: S-0111
Page: 2 of 3
Installation of the board in most of the units was quick and simple to do when
following the installation instructions accompanying the boards. Installation of
the SOTA 386si in the Equity I and the Equity II is rather difficult. Due to the
amount of disassembly required, we strongly recommend that only Authorized
Service Centers install the board in the Equity I and Equity II.
Installation Instructions
Equity I
1. Remove the following from the main unit:
a) upper case
b) rear panel
c) front panel
d) FDD/power supply block.
2. Follow instructions for a standard installation for the SOTA 386si in an
8088 - based system.
not to prevent reassembly.
folded.
Take care to fold the SOTA connector cable so as
The cable is sturdy and will tolerate being
3. Reassemble the main unit and go through the testing and initialization
procedure outlined in the SOTA manual.
Equity II
1. Remove the following from the main unit:
a) upper case
b) rear panel
c) front panel
d) FDD/power supply block.
2. Follow instructions for a standard installation for the SOTA 386si in an
8086 - based system.
not to prevent reassembly. This will necessitate routing the cable so that it
does not conflict with the power connection to the main system board.
The cable is sturdy and will tolerate being folded.
3. Reassemble the main unit and go through the testing and initialization
procedure outlined in the SOTA manual.
Take care to fold the SOTA connector cable so as
PSB No: S-0111
Page: 3 of 3
Our Computer Product Support Center receives numerous calls requesting
information and recommendations on 80386 Accelerator boards for use with the
Equity and Apex (8088-
We have found that the SOTA 386si may meet your requirements and are
competitively priced!
Although these boards were tested by qualified product support specialists,
Epson America makes no representations that these third party products are
compatible with all hardware configurations or software applications.
We recommend that you certify these products with your specific hardware and
software requirements and consult with the third party vendor to ensure reliable
operation.
SOTA Technology can be reached at:
SOTA Technology, Inc.
657 N. Pastoria Ave.
Sunnyvale, CA 94086
Phone: (408) 245 - 3366
and 8086 - based) personal computers.
Product Support Bulletin
Subject:
Date:
Page:
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.
Equity I
Equity II
Equity and Apex Series Compatibility with the System OmniBridge
Controller and BridgeFiler External Floppy Drives
04/11/90
1 of 3
PSB No:
Originator:
Comments
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.
The Equity II was found to be totally incompatible with
the OmniBridge controller.
S-0088B
KAS
60
Equity III
Equity I +
Equity le
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.
The Equity I + was found compatible with the
OmniBridge controller.
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.
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.
It was able to support one or
PSB No: S-0088B
Page: 2 of 3
Equity II +
Equity lIe
Equity Ill +
Equity 386SX
The Equity II + was found compatible with the
OmniBridge controller.
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.
The Equity Ile was found compatible with the
OmniBridge controller.
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.
The Equity III + was found compatible with the
OmniBridge controller.
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.
The Equity 386SX was found compatible with the
OmniBridge controller.
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.
It was able to support one or
It was able to support one or
It was able to support one or
It was able to support one or
Equity 386/20
APEX
APEX +
The Equity 386/20 was found compatible with the
OmniBridge controller.
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.
The Epson APEX was found compatible with the
OmniBridge controller.
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.
The Epson APEX was found compatible with the
OmniBridge controller.
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.
It was able to support one or
It was able to support one or
It was able to support one or
PSB No: S-008B
Page: 3 of 3
APEX 100
APEX 200
NOTE:
The Epson APEX 100 was found compatible with the
OmniBridge controller.
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.
The Epson APEX 200 was found compatible with the
OmniBridge controller.
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.
The recommended switch settings for the OmniBridge controller are
as follows:
1-1 DOWN2-1 DOWN
1-2 DOWN2-2 DOWN
1-3 DOWN
1-4 DOWN
2-3 UP
2-4 UP
It was able to support one or
It was able to support one or
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.
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.
This way you do not need to disable the internal
Product Support Bulletin
Subject: Tape Backup System Test Results
Date: 6/13/89
Page: 1 of 2
The Epson America Product Support Center has recently tested four tape
backup systems:
Archive VP - 150iInternal, 150MB
Mountain Series 4000 FileSafe
Tallgrass TG - 4060 +
Tecmar
The tape drives were tested on a variety of systems (please see the notes
below). In all cases, the drive manufacturer’s documentation was used as a
guide to installation and operation. Note that for 8086/88 computers, the
XT- type settings were used. For the 80286/386 computers, the AT- type
settings were used. This is important for correctly configuring the host
adapters or controller cards for IRQ, DMA and I/O port address.
Archive VP - 150i
QT - 60e
The VP - 150i was tested on the Equity II +, Ill + and 386/20. Due
to the capacity and nature of the drive, it is not particularly suited
for use in any of the 8086/88 computers. This was the only drive
supplied with Unix/Xenix device drivers. It was tested under MS -
DOS 3.3 and SC0 Xenix 286 System V version 2.2.1 with no
problems encountered. The VP - 150i is also Novell tested and
certified under the NetWare operating system.
PSB No: S-0087
Originator: MWT
External, 40MB
External, 60MB
External, 60MB
w
Mountain Series 4000 FileSafe
The Series 4000 FileSafe was tested on the Equity II+, III + and
386/20. Due to the use of a 16 - bit controller, it was not tested
in any of the 8086/88 computers. It was tested under MS - DOS
3.3 with no problems encountered. A chapter is included in the
tape software documentation on backup and restore operations on
a local area network, including Novell.
Tallgrass TG - 4060 +
The TG- 4060+ was tested on the Apex, Apex +, Equity I +,
II +, Ill + and 386/20. It was tested under MS- DOS 3.2 and 3.3
with no problems encountered. There is no documentation on LAN
operations.
Tecmar QT - 60e
The QT- 60e was tested on the Equity I +, II + , III + and 386/20.
Testing was conducted under MS - DOS 3.3 with no problems
encountered. The Tecmar documentation includes extensive
information on installation and operation in a LAN environment.
General Notes
Of the four units tested, the Archive and Tecmar drives offered the
easiest installation. They also provided the best performance, with
the Tallgrass drive giving the slowest disk-to-tape and tape to- disk operations. All four drives were supplied with menudriven tape utility software for the MS - DOS environment.
Command-line and timed, scheduled operations are also
available. As previously mentioned, the Archive drive also included
device drivers for use in a Unix/Xenix environment, offering the
greatest level of flexibility.
PSB No: S-0087
Page: 2 of 2
Please contact the manufacturers for additional information.
Archive Corporation
Data Storage Division
1650 Sunflower Ave.
Costa Mesa, Ca. 92626
(800) 237-4929
Tallgrass Technologies Corp.
11100 West 82nd St.
Overland Park, KS. 66214
(913) 492-6002
Mountain Computer, Inc.
360 El Pueblo Rd.
Scotts Valley, Ca.
(408) 438-6650
Tecmar, Inc.
6225 Cochran Rd.
Solon, Oh. 44139
(216) 349-1009
95066
Product Support Bulletin
Subject:
Date: 4/19/89
Page: 1 of 1
Apex / Apex Plus / Equity Series Keyboards
PSB No: S-0080
Originator: REM
AL
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 Equity series keyboards are repaired to the subassembly level.
The
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.
SUBJECT: DISABLING THE FLOPPY DISK CONTROLLER IN EPSON COMPUTERS
This bulletin covers the ability or inability to disable the
floppy disk controller in the Epson computers.
S-0065 DATE: 1/5/89
COMPUTER
Equity I
Equity II
P
RODUCT
FDC CAN
BE
DISABLED
No
No
S
UPPORT
B
ULLETIN
ORIGINATOR: REM/
HOW
AGE: 1 of 1
Equity III
Equity I+
Equity II+
1OMHz
12MHz
Equity III+
Apex
Apex Plus
Yes
YesCPU Brd - Jumper 1 in Position B
No
Yes
YesMulti-function Board
Yes
No
CPU Board -
Multi-function Board
- Jumper 2 in Position B
- Jumper 1 in Position B
- Jumper 2 in Position B
Motherboard - Remove Jumper El
Switch 2-3 off
EPSON AMERICA SERVICE, 23610 TEL0 AVENUE, TORRANCE, CALIF. 90505
Product Support Bulletin
Subject:
Date:
Page:
Q1.
A.
Using Expanded Memory with Equity and Apex Computers
3/2/90
1 of 6
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.
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.
16K pages of memory are allocated for an application’s
PSB No:
Originator:
S-0047C
KAS
‘/“p&
Q2.
A.
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.
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.
smaller than standard (16K) memory pages used by some expanded
memory boards.
There has also been a change to support the
Q5.
A.
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.
A.
Q7.
A.
What memory expansion boards are compatible with the Equity I and
Equity II?
The following boards have been tested by Epson in the Equity I and
II:
All Card w/MMU Multifunction All Computers, Inc.
Liberty PC
Mini Magiccard (EV - 138)
AST SixPak Premium
AST Rampage
What memory expansion boards are compatible with the Equity Ill?
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 RamvantageAST Research
Quadram Corporation
Everex Systems, Inc.
AST Research
AST Research
STB Systems
Intel Corporation
Quadram Corporation
AST Research
AST Research
Q8.
A.
Q9.
A.
What memory expansion boards are compatible with the Equity I +?
The following boards have been tested by Epson in the Equity I +:
64/256KB Expansion Option
Above Board PC (1985)
Fastcard IV (1.6)
What memory expansion boards are compatible with the Equity le?
The following boards have been tested by Epson in the Equity le:
64/256KB Expansion Option
Quad Board II
Fastcard IV
RAMpage
Note: The Intel Above Boards do not currently operate reliably with
the Equity le.
IBM
Intel Corporation
Thesys
IBM
Quadram
Thesys
AST Research
PSB No: S-0047C
Page: 4 of 6
Q10.
A.
* Will run at 8MHz, not at 10MHt.
Q11.
A.
What memory expansion boards are compatible with the Equity II +
and Equity Ill + (10MHz models)?
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
What memory expansion boards are compatible with the Equity II +
and Equity Ill + (12MHz models)?
The following boards have been tested by Epson in the Equity II +
and Equity III + (12MHz models):
AST Research
AST Research
Intel Corporation
*
*
Intel Corporation
STB Systems
STB Systems
Profit Systems
Rampage 286 Plus
Elite 16
Above Board Plus
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 +.
AST Research
Profit Systems
Intel Corporation
PSB No: S-0047C
Page:
5 of 6
Q13.
A.
Q14.
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.
Memory
1MB
2MB
4MB
4MB
8MB
10MB
16MB
Note:
Is there a driver supplied with the Equity 386/20 to allow the use of
the extended memory as expanded memory?
Refer to PSB S - 0095 for 18MB RAM Setup information.
See the matrix below:
Bank 0
4X256KB
4X256KB 4X256KB
4X256KB 4X256KB 4X256KB 4X256KB
4X1MB
4X1 MB4X1 MB
4X1 MB4X1 MB
4X1 MB4X1 MB
Bank 1
Bank 2 Bank 3
4X256KB 4X256KB
4X1 MB4X1 MB
A.
Q15.
A.
Q16.
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.
Are there any expanded memory boards that are compatible with the
Equity LT?
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.
What expanded memory boards are compatible with the Apex by
Epson?
The Above Board PC from Intel Corporation has been tested by
Epson in the Apex.
PSB No: S-0047C
Page:
6 of 6
Q17.
A.
Q18.
A.
Q19.
A.
Are there any general guidelines for determining the chip speed to
install on the memory expansion boards?
Yes, if the CPU speed is 8MHz or less, use 150ns RAM chips. If
the CPU speed is 10/12MHz, use 120ns RAM chips.
Is there anything that should be kept in mind during the installation
procedure for the memory expansion boards?
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.
What is meant by backfilling memory when using software such as
DESQview?
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.
disable some of the computer’s conventional memory and the use
the memory on the expansion board (i.e. DESQview).
In certain situations, you may want to
Q20.
A.
Which Epson computers have memory settings that allow backfilling
memory?
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:1/26/88NUMBER:S-0035
SUBJECT:USING THE PLUS DEVELOPMENT "HARDCARD" WITH THE APEX PC
The Plus Development "HardCard 20" is a singleslot 20MB fixed
disk mountedon an expansion slot card,for use in IBM PC/XT and
compatible computers.The unit employs controller circuitry from
OMTI/Scientific Micro Systems,
and uses 2,7 RLL encoding.
TheHardCard hasbeen
computer,but there has been some
are runningthrough the installation procedures.
the HardCard's
designed specifically
file name differences between MS-DOS and PC-DOS, the Plus install
program will not run using the APEX MS-DOS.
The
with a number of files included on it.
as follows:
INSTALL.DAT, PATCHFMT.EXE, PREPARE.BAT, and
Development
utilities (LIGHT.COM and SOUND.COM).
Please refer to
specific
files
comprisetheinstallation
fixed disk
menu program (HCD*.*), and supplemental
the APEX MS-DOS manual
command functions during the
procedure.
routine (INSTALL.EXE,
SHELL.BAT), the Plus
for details
on the
following installation
Page 1 of 2
HARDCARD INSTALLATION -
MODIFIED FOR THE EPSON APEX
1.
After
boot the computer using the APEX MS-DOS disk in drive A:.
2.
Enter SYS C:
3.
Copy COMMAND.COM and FORMAT.COM from the MS-DOS diskette into
the root directory of the HardCard.
4.
RemovetheMS-DOS diskette and
drive A:.Log onto C:and enter FORMAT A: to format the disk.
5.
COPY
Label this diskette "Plus Utilities".
6.
Remove the Plus Utilities diskette and press the RESET button
on the APEX.
7.
Reinsertthe EpsonMS-DOS diskette,
FDISK to
installing the
to transfer MS-DOS system to the HardCard.
all filesfrom the HardCard to the formatted diskette.
Thesystemshouldreboot
partitiontheHardCard forMS-DOS andthen run
HardCardin one ofthe option slots,
insert
a blank diskette
from the HardCard.
log onto drive A:, run
SELECT to format the HardCard. When finished, remove the APEX
disketteand reset
from the HardCard.
8.
Reinsert the Plus Utilities diskette.Copy all the files from
the
the HardCard.
9.
Copy allfilesfromtheEpson Apexdiskette(s) into
root directory of the HardCard.
10.
Log into the root directory of drive C: and enter the command
PREPARE.
empty subdirectories on the HardCard,
softwarewill later be loaded.
11.
Also inthisdirectory,
AUTOEXEC.BAT.
loadthePlusmenu "shell"on bootup.
12.
Finally,
the root directory of C:.
13.
The HardCard installation is now complete. Test the system by
rebooting - the Plus menu "shell" should run.
Plus Utilitiesdiskette back into the root directory of
Remove and store the diskette in a safe place.
Thiswill runa batch file thatwillcreate 16
Thiswill causethe systemto automatically
erase PATCHFMT.EXE, PREPARE.BAT,
the system.Ensure that theAPEX boots
into which applications
rename
theprogram SHELL.BAT to
and
INSTALL.*
in
the
from
NOTE:
TheoriginalPlusinstallprogramcreates a
diskettecontainingthePlusfiles,as above, but also
performsseveral otheroperations tomake itwhat they
refer to as the
this Reinstall diskette can later be used for reformatting
the HardCard.Using the modified APEX procedure, however,
the
used as theReinstall diskette. If an APEX user wants to
reformattheHardCard,the usershoulduse
backupthecontents,run
"Plus Utilities" diskette
"REINSTALL"
diskette.
In PC-DOS systems,
that is created
SELECT to
format, then use
floppy
cannot be
BACKUP
to
BACKUP to restore the files.
You may want to copy theLIGHT.COM and SOUND.COM utilities back
to
theHardCard, asthesefilescontrolvisual and audible
signals that are usedto indicateHardCard access.The visual
indicator is a
display (defaults to ON),and the audible indicatoris a buzzing
sound (defaults to OFF).
flashing
" + "
sign atthe upper right of the
Page 2 of 2
EPSON
EPSON AMERICA INC.
SERVICE DEPARTMENT
PRODUCT SUPPORT BULLETIN
DATE:
SUBJECT:
This bulletin is to inform you of a
Microsoft Word,
situation exists on:
When Word is configured to drive a
COM2,
of text may take up to a minute to print.
Word uses BIOS interrupt
character to port) for driving either COM port. The function number
is placed in the AH register and the interrupt called. On return, AH
is supposed to contain the line control status. However, AH is still
set to 1,
then calls interrupt 14h,
to receive the character. After 1 to 2 seconds, the routine times out
and transmission is resumed.
12/14/87
Equity Series with Microsoft Word and Serial Printers
potential problemwhen using
certain Equity computers and a serial printer. The
it will print a character every 1 to 2 seconds. A single line
14h
indicating that a character is ready to be received. Word
function 2 (receive character) and attempts
(serial
BIOS rev.
BIOS rev. 1.02
BIOS rev. 2.00
BIOS rev.
BIOS rev. 1.00
serial
output)
printer
NUMBER:
2.21 or earlier
1.50 or earlier
via
function
S-0031
COM1 or
1 (send
There are three methods of correcting this situation:
1)
2)
3)
Method 1 is theeasiest solution.Method 2is effectiveand is
recommended for
large,
Please contact the Systems
information.
multi-unit upgrades on an as-needed basis.
If the printer supports hardware handshaking, redirect
the printer output(MODE LPT1:=COM1:)
Word for LPT1.This works reliably with Epson printers
or similar devices.
Epson has developed a
This is a TSR that
returned from INT 14h,function 1.
available
Forums) and the Product Support Center BBS.
A revised ROM BIOShas been developed for 'the above
systems. This
supplied on an as-needed basis.
individual users.
from
Page 1 of 1
CompuServe(Epson and Microsoft
is a
Support Group
limited releaseand will only be
patch program (SERFIX.COM).
insures
Method 3 should be reserved for
that proper status is
if you
and configure
This
need additional
program is
EPSON
EPSON AMERICA, INC.
SERVICE
PRODUCT SUPPORT BULLETIN
PSB NO.:
SUBJECT:
S-0029C DATE: 10/10/88 ORIGINATOR: REM PAGE: 1 of 6
APEX PERSONAL COMPUTER -
ANSWERS TO COMMON QUESTIONS
Q. Where can I obtain help regarding software or hardware
questions on the Apex computer?
A. PFS First Choice applications software
Software Publishing Corp.provides
support for the First Choice software. Please refer to Appendix
" E "
information.The telephone number for PFS First Choice support
is (415) 962-9002.
of the First Choice User's Guide for customer support
the warranty
and end-user
Apex Hardware and MS-DOS/GW-BASIC software support
Epson America Inc.
regarding the MS-DOS/GW-BASIC (software) and the Apex computer,
Apex printer and Apex monitors (hardware). Customers can obtain
support by calling our Product Support Department 213 539-9955,
or by writing to:
provides
technical
support for questions
Epson America Inc.
Product Support Department
23610 Telo Ave.
Torrance, Ca. 90505
Q. Where
can I obtain warranty repairservice for
my Epson Apex
products?
A. Epson America, Inc.
Care Centers located in strategic locations across the country.
If you
Information number at 1-800-922-8911 to locate the nearest Apex
Service Center.
requireservice youcan call our toll free Consumer
has a network of Authorized Epson Customer
Q. What kind of printer can I use with the Apex?
A. The Apex comes
used to connect any printer or plotter with a standard parallel
interface.
to connect a printer to the computer.
Epson offers three outstanding printers from the ActionPrinter
line of 9-pin and 24-pin dot matrix printers.
80 column printer and theT750 is a 136 column printer.
have near letter quality print.
column 24-pin printer with superb letter quality print.
A parallel printer cable (not included) is required
standard
with a
parallel interface which is
The Apex80 is an
The L1000 printer is an 80
Both
EPSON AMERICA SERVICE, 23610 TEL0 AVENUE, TORRANCE, CALIF. 90505
NUMBER:
S-0029C
Q. Does the Apex have a serial interface port?
PAGE:
2 of 6
A. An optional IBM PC/XT
inside the Apex computer to
modem,
IBM PC/XT compatible serial
computer dealers.
order to optimize the use of available option card slots. Epson
offers a multifunction board (Epson Part No. AP-1030A-AA) which
has a serial interface port,
Calendar.
i:rketing
orders can be placed using your credit card.
serial mouse,
We recommended using a multifunction board in
The board is
it
can be purchased directly from Epson's Accessories
at their toll-free telephone # 1-800-873-7766 and
compatible serial board may be installed
connect a serial device such as a
serial printer or another computer. Many
boards are available through
a game-port interface and a Clock/
available from some Apex retailers
Q. Can a hard disk drive be installed?
A. Yes,
half height
nice thing about
floppy drives which comes in handy for disk copying.
case you will lose an
requires
a hard disk which draws 14 watts or less.
you
size (width) of the hard card. Most hard cards take up more
than one slot,
in one slot
The Plus Development hardcardsare very thin so
no matter
expensive
Apex is
reports from a few customers
getting
problem and we have spoken
had problems, we believethose who did have problems either
had defective hard cards or did not have them installed
correctly.
you can either replace the lower floppy disk drive with a
hard disk drive or
installing a hard card is
option slot because the
a separate
must consider if you decide on using a hard card is the
usually 1-1/2 slots,
if the board next to them is a half length board.
what type of
1-1/2 slot hard card which we have tested in the
the StandardBrand Flashcard-20.
them operatingcorrectly.Since
hard disk controller card. We recommend
board is in the adjacent slot. A less
install a hard disk card.
that you keep both
In either
hard disk drive
Another thing which
which means they will fit
they will fit
We have heard
who have had difficulty in
we did
to other customers who have not
not have a
One
Some hard disk manufacturers recommend that the computer have
at least a 110 watt power supply.This is correct when
installing them in an IBM-PC/XT and many compatibles but Epson
uses
power for added peripherals with its 80 watt power supply. To
be on the safe side we recommend using a hard disk which draws
less
requires 8 watts of power.
The most commonlyused hard drive is the Seagate ST-225, 20MB
drive.
hard disk controller card as that model has been tested with
the Apex.Customers have reported having problems with other
cards such as the Western Digital XT-GEN board.
many custom
than
We recommend using a Western Digital (Model WD1002A-WX1)
12 watts.The Plus
low power LSI chips
Development hard card only
which leaves plenty of
NUMBER:
S-0029C
PAGE:
3 of 6
Q. What kind of floppy Disk
drives does the Apex have and what
kind of floppy diskettes should I use?
A. The Apex comesstandard with
floppy disk drives.Make
double-density,
diskette boxes are usually marked DSDD or 2S-2D, Soft-Sector,
48TPI.
before being used.
New blank diskettes
soft-sector,
two half-height, 5 1/4", 360KB
sure
must be formatted
to use
48 TPI floppy diskettes.
only double-sided,
in the computer
The
Q. Can I use other types of floppy disk drives with the Apex?
A. 1.2MB,
the Apex personal computer.
The Epson 3.5",
code A112A-AA)
compatible (available from Epson computer dealers).
half-height floppy disk drives are not compatible with
half-height,720KB floppy drive
has been
tested with the Apex computer and is
(Epson Model
Q. Can I install a Math-Coprocessor chip and what type do I need?
A: A Math-Coprocessor chip
functions used in many spreadsheet and math-intensive software
applications.
and computer stores
An 8087-2
recommended for use with the Apex computer.An 8087 Math-
Coprocessor may also be
when
Coprocessor
Apex CPU board
parallel printer interface).
up to select the math-coprocessor according to the User's Guide.
the slower
It can be bought at
Math-Coprocessor chip whichruns at
speed (4.77MHz) is selected.
chip is installed inthe socket provided on the
(the board which has the dip switches and
is an option which
electronic parts retailers
(Epson America Inc.
used but it will only operate reliably
The dipswitches need to be set
speeds up the math
does not supply them).
8MHz is
The Math-
Q. How can I increase the Apex RAM memory to 640K Bytes?
A. The Apex comes
suitable for most applications.
640KB by adding
$;zyback)
chips' directly
retailers.
which advertise in computer magazines such as PC Magazine.
should be certain to order the4464 type (150ns) RAM chips as
there are other types of 64K RAM chips which will not work.
Since this is not the standard configuration of the Apex as it
is offered,
upgrade.
removed before returning the Apex for repair.
board in the empty sockets
RAM chips are
They canalso be ordered from mail order sources
If service
standard with 512KB of RAM memory which is
The memory can be expanded to
additional RAM memory chips to the CPU memory
pro;d!ed.
required.
but they are
Epson will not
is required,
Epson does
available from electronic parts
provide
warranty support of this
these RAM chips should be
supply these
Four 4464
You
NUMBER:
A-0029C
PAGE:
4 of 6
Q. Can I use the Apex Monochrome Monitor with other IBM-PC
compatible computers?
A. The Apex 12"
using an RCA type connector which is compatible with the video
board supplied with the Apex computer. We have not tested it
with
boards providing a composite video output.
other video boards but it should operate reliably with
Monochrome monitor uses a composite video signal
Q. Can I use the Apex color monitor with other IBM-PC compatible
computers and what are the specifications?
A. The Apex color monitor is an IBM-PC compatible, 16 color, RGB,
dual function monitor which can be set up for either
greenscreen mode with a
640 x 200 (black and white)
dot resolution.It can display
row text mode. The dot pitch is .52mm.
switch on the rear panel.
or 320 x 200 (4 color) graphics
16 colors
in 80 column x 25
;;l;;so;
Q. What other monitors are compatible with the Apex and is it
possible to use a television set?
A. IBM-PC compatible RGB color or composite monochrome monitors
work with the video board provided with the Apex computer.
Composite color monitors will only display shades of gray.
IBM compatible EGA monitors
board is installed (available from computer dealers).
can also be used if an EGA video
IBM compatibleTTL monochrome monitors
monochrome
computer dealers).The Apex video
monochrome monitors.
A standard television
although
can also be used as computer monitors with the proper interface
card. Check with the dealer to be sure. We have not tested any.
graphics video board is installed (available from
board does not support TTL
set
there are somenew TV sets being
cannot
be used with the Apex,
may be used if a
manufactured which
Q. Where can I get software for the Apex computer?
A. Epson America, Inc. does not supply software other than that
which is bundled with the unit as sold.
all IBM PC/XT compatiblesoftware available at stores which
carry software.
You can use virtually
Q. Can I use an IBM enhanced style keyboard with the Apex?
A. Yes, an IBM compatible enhanced style keyboard can be used. Dip
switch 1 must be set tothe off position.
Datadesk Turbo 101 keyboard with the Apex and it works fine.
We have tested the
NUMBER:
S-0029C
Q. How many option cards can be installed in the Apex?
PAGE:
5 of 6
A. The Apex has three available option
delivered,
adapter board.The expansion
variety of IBM-PC/XT compatible (8-bit) option cards. In order
to optimize the use ofthese option slots,
that a
single slot
serial interface port.
oneof them is
multifunction type
hardcards and external modems which connect to a
occupiedcaiyb;he
slots
option board be used,
(expansion)
includedavAy;;
used for
it is recommended
slots as
as well as,
Q. What kind of option cards are available for the Apex computer
and where can I buy them?
A. In general,any IBM PC/XT
in the Apex computer.We suggest visiting
store
The products must statespecifically that
compatible.
impossible forus to test all option
sure they areall compatible.
sure to
board if for some reason it is not compatible. In order to make
the best use of the option slots available it is recommended to
use a multifunction type card with clock/calendar,
and game port.
computer (Model code AP1030) which can be ordered from Epson
Accessories Marketing.
telephone # 1-800-873-7766 and orders can be
credit card.
to see a widerange of products
Since there are many different manufacturers it is
purchase boardsfrom a dealer who will
Epson offers a multi-function board for the Apex
They can be contacted at their toll-free
compatible option board should work
a computer retail
too extensive to list.
they areIBM PC/XT
boards available to make
We recommend
that people make
exchange the
serial port
placed using your
Q. What kind of mouse works with the Apex?
A. There are many IBM-PC compatible mice which will work with the
Apex.
an option slot.
Multifunction board.
information.
Some come with their own
A serialmouse
See your local computer dealer for more
interface boards which take up
can be used with the Epson
Q. What kind of joystick can I use with the Apex and where do you
connect it?
A. There are many IBM compatible joysticks available and some have
different types of connectors.
match the connector type on the board it is being used with. An
IBM compatible joystick
must be used with the
using the Kraft Premium joystick as we have tested it with the
Apex using the EPSON Multifunction board.
with a 15 pin IBM compatible connector
Epson Multifunction board. We recommend
The joystick
connector must
NUMBER:
S-0029C
Q. What type of modem can be used with the Apex?
PAGE:
6 of 6
A. IBM PC/XT compatibleinternal modems
external
A serial interface board or
installed to use an
types of modems which are available from Epson computer dealers.
The Epson Link 1200 external 1200 baud modem (Epson P/N C202A-A)
and the Epson Link 1200-PC internal modem (Epson P/N C203A-A).
modems
which connect
multifunction option board must be
external modem.
to a
can be
serial
Epson
used as well as
interface port.
manufactures both
Q. My computer would not work when I set the dip switches as
described in the User's Guide but it worked when I set them in
the opposite setting.
Why?
A. An error was made in the original Apex User's Guide, Appendix A,
page A-2, for setting the dip switches. The book indicates that
the switches are OFF when set to the right.
actually ON when set to the right.
is correct.
since this error was discovered.
An errata sheet has been placed in the manuals
The Table (A-l) on page A-3
The switches are
Q: I can't find some of the programs referred to in the MS-DOS
3.2 manual on the MS-DOS diskette. Where are they?
A. The GW-BASIC diskette contains many of the utility programs
which are referred to in the MS-DOS manual.
Q. Will my Apex work in foreign countries?
A. The Apex
internationally
voltage on the voltage selection
the unit.
computer canbe used
simply by selecting the appropriate input
The Apex will operate on either 115VAC or 230VAC at
in both the United States and
switch located on the rear of
50/60 Hz power.
One thing to be aware of,if taking an Apex overseas,
the voltage on the power outlet on the rear of the computer is
the same as the
monitor or other device
is capable
the computer isconnected to.Most monitors and printers are
not set up
plugged into the wrong AC voltage. This applies to the Apex
monitors and printers as well.
of operating on the same voltage and frequency that
to operate on dual voltages
input voltage ofthe computer.
plugged into this
outlet make sure it
and will be damaged if
If you have a
is that
EPSON
EPSON AMERICA, INC.
SERVICE
P
RODUCT
S
UPPORT
B
ULLETIN
B NO.:
UBJECT: EPSON 3.5" 720KB FLOPPY DISK DRIVE COMPATIBILITY
The purpose of this bulletin is to provide information
regarding the compatibilityof theEpson 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 to the following table for compatibility
information.
ApexNo special setup required
Equity I
Equity II
S-0028A
1
Must include DRIVPARM = /D:1 /F:2 in CONFIG.SYSI
DATE: 6/29/88
Not supported
PAGE: 1 of 1
Equity IIINot supported*
Equity I+
Equity II+
1
Equity III+ 1 No special setup required
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
Equity II systems for using the 3.5" floppy disk drive.
No special setup required
No special setup required
using the DRIVPARM command to configure
I
I
EPSON AMERICA SERVICE, 23610 TEL0 AVENUE, TORRANCE, CALIF. 90505
Product Support Bulletin
Subject:
Date: 6/7/89
Page:
The Apex by Epson comes standard with 512KB of RAM memory. This can be
expanded to 640KB by installing additional RAM chips on the Apex memory
(piggyback) board in the I.C. sockets provided. The memory board is attached to
the CPU board. This upgrade requires 4 each 4464, 21464 or 41464 (4 x 64)
DRAMS (150ns) which are available from Epson’s Accessories Marketing department
(Tel. # 800 - 873 - 7766) and should also be available at local electronic component
suppliers.
1. Refer to section 5 of the Apex User’s Guide (Installing Option Cards) for
information on removing and replacing the Apex top cover. Ensure that the AC
power is disconnected from the unit.
2. After the top cover is removed, unscrew the CPU board retaining screw and
disconnect the 5 connectors which are attached to the top of the CPU board.
Note the positions of the connectors for later reconnection. Refer to figure
1 for details of board and connector locations.
Apex Computer -
1 of 2
640KB Memory Upgrade Procedure
PSB No: S-0022A
Originator: REM
INSTALLATION INSTRUCTIONS
2%
Figure 1
POWER
SUPPLY
i!l
PSB No: S-0022A
Page: 2 of 2
3. Carefully pull up and remove the CPU board and place the board on a static
free material with the component side up.
4. Insert the four RAM chips in the empty I.C. sockets marked U9, U10, U11, and
U12 on the memory board.
Be sure to insert the RAM chips in the same
direction as the existing RAM chips with pin 1 toward the rear of the board.
Check to be certain that all chips are properly seated and that none of the pins
are bent.
Refer to Figure 2 for RAM chip locations and installation direction.
I
Figure 2
I
5. Reinstall the CPU board into the Apex motherboard (slot closest to the power
supply). Reconnect the 5 connectors and board retaining screw then install the
top cover.
6. Set the dip switches on the CPU board (See Section A- 3 of the User’s Guide)
for 640KB. Switch 3 and 4 should be set in the off position. Also check the
other dip switch settings to make sure they have not been accidently changed
during the upgrade.
7. Power on the Apex system and check operation. The display should indicate
“640KB OK’ upon initial self test.
Upgraded Apex CPU boards or Memory boards requiring service should be returned
with the factory memory configuration (512KB).
The Epson Limited Warranty covers the Apex computer product as purchased. It
does not cover failures caused by improper installation of circuit boards,
modifications, or failures due to components which are not factory installed.
EPSON
EPSON AMERICA INC.
SERVICE
DEPARTMENT
PRODUCT
DATE:12/2/87
SUBJECT: EQUITY SERIES/APEX MATH 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 which type of Numeric
Co-Processor is recommended for the corresponding computer.
EPSON
COMPUTER
CPU
SPEED
SUPPORT
NUMERICNXP
CO-PROCESSORSPEED
BULLETIN
NUMBER:
S-0019B
80287-6
$
Product enhanced with increased CPU speed of 6/8/12Mhz
starting with all units manufactured in the U.S.A..
Page 1 of 1
6 MHz
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