Epson 4+ Laptop User Manual

EPSON Equity 4+
power
(SPEED)
light
hard disk
access light
power
button
diskette
drive
bay for hard disk, diskette drive,
CD-ROM, tape drive, or other
Memory
4MB RAM standard; expandable using
1MB, 4MB, or 16MB SIMMs to 36MB
(maximum); SIMMs must be 36-bit,
fast-page mode type with 70ns (or faster)
access speed
ROM
128KB system BIOS, video BIOS, and
SETUP code located in EPROM on main
system board
Video RAM
512KB DRAM on main system board,
expandable to 1MB using 256k x 4-bit
DRAM ZIPs
Shadow RAM
Supports shadowing of system and video
BIOS ROM into RAM
Cache
8KB of internal cache (built into the
microprocessor); expandable to 256KB
using 8KB or 32KB, 70ns SRAM DIP chips
Math
coprocessor
On 4DX2/50 system, math coprocessor
built into the microprocessor; optional 487
upgrade available for 4SX/25 system
Clock/calendar
Real-time clock, calendar, and CMOS
RAM socketed on main system board with
built-in battery backup
option card slots
Controllers
’
’
power keyboard
serial serial
inlet
port
I
mo”s POti’ pod2
poti
\
;F”
Video
Cirrus® Logic GD5422 VGA controller on
main system board; provides true color
resolutions up to 800 x 600 with 512KB
standard memory; with 1MB upgraded
memory, provides resolutions up to
1280 x 1024
Diskette
Controller on main system board supports
up to two diskette drives or one diskette
drive and one tape drive
Hard disk
Interface on main system board supports
up to two IDE hard disk drives with
built-in controllers
VGA
monitor
poti
Computer Specifications
CPU and Memory
32-bit CPU
®
4SX/25: Intel i-X, 25 MHz
microprocessor in PGA-type CPU socket;
can be upgraded with optional 487SX/25
or ODP486-25 OverDrive™ processor
4DX2/50: Intel &36DX2,50 MHz
microprocessor in PGA-type CPU socket
System speed
Fast and slow speeds available; fast speed
depends on CPU (25 MHz or 50 MHz),
slow is simulated 8 MHz speed; speed
selection through keyboard command; 0
wait state memory access at fast speed
To select slow speed, press the Ctrl, Alt,
and - keys simultaneously. To select
fast speed, press the Ctrl, Alt, and + keys
simultaneously. (Use the - or + key on the
numeric keypad.) Default system speed is
also user-selectable through SETUP
Interfaces
Monitor
VGA interface built into main system
board for analog or multifrequency VGA
monitor; 15-pin, D-shell connector
Parallel
One standard 8-bit parallel, uni- or bidirectional interface built into main system
board; I/O address selectable through
SETUP; 25-pin, D-shell connector
Serial
Two RS-232C, programmable,
asynchronous interfaces built into main
system board; 9-pin, D-shell connectors
10/1/93
EPSON Equity 4+ 1
EPSON Equity 4+
Keyboard
Mouse
PS/2 compatible keyboard interface built
into main system board; num lock setting
selectable through SETUP; 6-pin, mini DIN
connector
PS/2 compatible mouse interface built into
main system board; 6-pin, mini DIN
Video Modes
Mods
1 Resolution
VGA
1640X480
Extended,
640X480
512KB memory required 640 x 480
800X600
800X600
connector
Four 16-bit (or S-bit) I/O expansion slots,
ISA compatible, 8 MHz bus speed; three
slots accommodate any size card,
bottom slot can hold reduced size card
(4.4 inch/110 mm)
Speaker
Internal, piezo-electric speaker on main
board
Power Supply
VGA feature
connector
IBM compatible VGA pass-through
interface built into main system board;
26-pin connector
Input ranges
Maximum outputs
Mass Storage
Hard disk drives
Keyboard
Program
19Oto264VAC
1+5VDCatllAmps,
+12 VDC at 2.0 Amps,
-5 VDC at 0.3 Amps,
-12 VDC at 0.3 Amps
47 to 63 Hz
Frequency
Three half-height drives maximum configurable using
the following:
5.25-inch, 1.2MB (high-density) capacity
3.5inch, 1.44MB (high-density) capacity
5.25inch, 360KB (double-density) capacity
3.5-inch, 720KB (double-density) capacity
Dual diskette drive: 3.5inch, 1.44MB and 5.25-inch,
1.2MB
31Wnch form factor hard disk drtve(s), up to
half-height size; the first mounted vertically, second
mounted horizontally
Half-height tape drive, CD-ROM, or other storage
device; 5Ginch or 3Wnch with mounting frames
Option Slot Power Limits
Maximum current
For each slot
For all four slots
+12 v0ns
+5 volts
1.5 Amps
7 Amps
11 Amps 2Amps
-5 Volts and -12 Votts
0.3 Amps
0.3 Amps
Environmental Requirements
I Condition
Temperature
Detachable, two-position height; 101 or 102
sculpted keys; countrydependent main
typewriter keyboard; numeric /cursor
control keypad; four-key cursor control
keypad; 12 function keys
Stored in ROM; accessible by pressing the
Delete key at the SETUP prompt during boot
HumMt
(noncondensing)
Attitude
Maximum
wet bulb
Acoustical
1 Operating
range
41’ to 90’ F
(5’ to 32O C)
20% to 90%
-330 to 9,900 R
(-100 to 3,999 m)
68’ F
(20° C)
37.5 dB(A)
1 Nonoperating
range
-4’ to 140’ F
(-20° to 60’ C)
10% to 90%
-330 to 39,699 ft
(-loOto 12,ooOm)
104’F
(40° C)
N/A
1 Storage range
-4’to 140’ F
(-20° to 60’ C)
10% to 90%
330 to 39,699 fi
(-109 to 12,990 m)
134’F
(57O C)
N/A
noise
Physical Characteristics
Width
Depth
Height
Weight
EPSON Equity 4+ 2
1 16
I256
Extended,
1 MB memory required
Option slots
Diskette drives
1 colors
1 16
1256
I32K
10/1/93
14.8 inches (370 mm)
16.5 inches (412 mm)
4.8 inches (120 mm)
16.7 b (7.5 kg), with one diskette drive and one hard
disk. but without kevboard
EPSON Equity 4+
Main System Board Diagram
parallel port
serial port 2
I
I
serial port 1
mouse
keyboard
1
CN13
nnnnn
/
SUPPly
connectors
option card
- riser board
connector
VGA feature
connector
c1
video memory (512KB optional)
-+ diskette drive
connector
OSCl
\ hard disk dtive
connector
5
I;)
:5
=
SIMM
sockets
u41
LI
U42
u43
L
L
u44
L;
u45
L
U46
L
u47
L
clc3u9
- DIP switches
z
=
=
external
cache sockets
>
,
u37
z
-
I
processor in
PGA socket
battery
connector
10/1/93
I
piezo-electric
speaker
jumpers
J4-J9
EPSON Equity 4+ 3
EPSON Equity 4+
Serial Port Connectors (CN9 and CN10)
Major Subassemblies
Serial Port Connector Pin Assignments
Pin
1
2
3
4
5
Signal
Data carrier detect
Receive data
Transmit data
Data terminal ready
Not used
Pin
6
7
8
9
Signal
Data set ready
Request to send
Clear to send
Ring indicator
Keyboard Connector (CN5) and
Mouse Connector (CN4)
pin 5
pin 6
+ pin 3
pin 4 +
battery
I
CN3
drive bays
diskette
drive
Although the keyboard and mouse connectors are physically
identical, they cannot be used interchangeably.
Connector Pin Assignments
Keybmrd and Mouse Connector Pin Assignments
Parallel Port Connector (CNS)
pin 13
I
pin 1
pin 2
pin 1
I
Pin
1
2
3
Signal
Data
Resewed
Ground
Pin
4
5
6
Signal
+5 VDC (fused)
Clock
Reserved
hooooooeoooL
VGA Port Connector (CN13)
piti 25
pin 14
Parallel Port Connector Pin Assignments
Pin
1
2
3
4
5
6
7
8
9
*Active
Signal
stnAx?
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
low logic
Pin Signal
10
ACK’
11
Busy
12
PE
13
Select
14
Auto’
15
El-K-P
16
hit
17
Selectin*
18
Signal ground
EPSON Equity 4+ 4
Pin Signal
19
Signal ground
20
Signal ground
21
Signal ground
22
Signal ground
23
Signal ground
24
Signal ground
25
Signal ground
Din 5
pin 1
pin 10
pin 6
pin 15
pin 11
VGA Port Connector Pin Assignments
10/1/93
EPSON Equity 4+
VGA Feature Connector (CN14)
pin 1
System I/O Address Map
pin 25
~oooooooooooow,
pin 2 /’
’ pin 26
~~
Reat-time clock NM non-maskable interru t mask
VGA Feafwe Connector Pin Assignments
‘Active low togic
DMA Assignments
OAO - OBF
OCO - ODF
OF0
OF1
OF8 - OFF
1FO - lF8
200 - 207
278 - 27F
280 - 2DF
2El
2E2 and 2E3
2F8 - 2FF
300-31F
360 - 363
368-368
378 - 37F
380 - 38F
390 - 393
1 lntermpt controller 2,8259A
1 DMA controtter 2,8237A-5
Clear math coprocessor busy
Reset math coprocessor
Math coprocessor
1 Harddisk
I Game I/O
Parallel printer port 2
Alternate enhanced graphics adapter
GPIB (adapter 0)
Data acquisition (adapter 0)
Serial port 2
Prototype card
1 PC network (low address)
1 PC network (high address)
Parallel printer port 1
SDLC, bisynchronous 2
Cluster
Hardware Interrupts
82El
GPIB (adapter 4)
A2El
1 GPIB (adapter 5)
C2El
GPIB (adapter 6)
E2El
GPIB (adapter 7)
* I/O addresses hex 000 to OFF are reserved for the system board I/O.
Hex 100 to 3FF are available on the system channel.
10/1/93
EPSON Equity 4+ 5
EPSON Equity 4+
Hard Disk Drive Jumper Settings
System Memory Map
23FFFFF
36MB
l
I Single Drive I Master Drive
1 Slave Drive
Made1 Number
Conner CP39194H I C/D jumpered I CD and DSP jumpered I no jumpers
no jumpers
Conner CP39174E
C/D jumpered C/D jumpered
no jumpers’
Quantum LPS249AT DS jumpered’ DS jumpers@
If CS (cable selection) is jumpered, the drive is a master if pin-28 is grounded
and a stave if pin-28 is not grounded.
DIP Switch Settings
Switch
1
Extended memory
l*
Setting
ON
OFF
ON
OFF
ON
3 *t
OFF
4
ON’
Off
5
ON’
OFF
* Factory setting
2 t*
0199909
1MB
System BIOS
(Shadow RAM, 64KB)
OOFOCKKI
Reserved for system BIOS (64KB)
OOEOOOO
Processor Chips
Resewed for ROM on I/O cards
99C7FFF
The 4SX/25 system can be upgraded with an Intel OverDrive
processor on the main system board to effectively double the
internal clock speed of the computer’s microprocessor.
Alternatively, the 4SX/25 accepts the Intel 487SX/25
microprocessor with built-m math coprocessor.
VGA BIOS ROM (Shadow, 32KB)
oocoooo
VGA Color Text
0088000
VGA Mono Text
ooBoooo
VGA Graphics
oOA9CUl9
Base memory
oooooOO
SIMM lnstallation
Jumper and DIP Switch Settings
Display Adapter and CPU Jumper Settings
Jumper
J3
Setting
A’
B
A.*
B
* Factory setting
J4
l
Function
33 MHz CPU speed
25 MHz CPU soeed
25 MHz CPU speed
33 MHz CPU speed
CPU present in PGA socket
CPU absent from PGA socket
Enable password secutfty feature
Disabte password security feature
Select color monitor
Select monochrome monitor
* Factory set according to system type
Function
Enable the built-in VGA adapter
Disable the built-in VGA adapter so you can use a
d&play adapter on an option card as your primary
adapter
Select DX2 CPU
select sx CPU
** Factory set according to system CPU
External Cache Jumper Settings
size
1 JS
1 J6
1 J7
1 J8
OKB’
lB
]B
jB
jB
32KB
A
A
A
A
64KB
A
B
A
B
B
128KB
B
A
A
1256KB
lB
]B
]B
lB
Factory setting; change jumpers only if external cache chips are
Cache
l
EPSON Equity 4+ 6
1 J9
IA
A
A
A
IB
installed
The computer comes with 4MB of memory on the main
system board. To increase the amount of memory in the
computer up to 36MB, install 36-bit, fast-page mode SIMMs
that operate at an access speed of 70ns or faster, with a
capacity of 1MB, 4MB, or 16MB.
The following table shows the possible SIMM configurations;
do not install memory in any other configuration.
SIMM Configurations
SIMM1
1 SIMM2
IO
0
1MB
lo
IO
4MB
4MB
1MB
4MB
4MB
0
16MB
I16MB
1MB
4MB
I16MB
I 16MB
I 16MB
Standard memory on the system board
** SlMMs can occupy either socket
l
10/1/93
I Total
i 4MB’
I5MB”
1 8MB”
9MB”
12MB
29MB”
I21MB”
1 24MB”
I36MB
I
I
EPSON Equity 4+
Video Memory
Hard Disk Drive Types
If the computer has 512KB of video memory, you can install
four 256K x 4 bit, 70ns, 20-pin DRAM ZIP (Zig-zag Inline
Package) chips to increase the video memory to 1MB. The
following table lists compatible DRAM ZIP chips.
The table below lists types of hard disk drives supported by
the computer. Check this table and the hard disk manual to
find the correct type number(s) for the hard disk drive(s)
installed in the computer. Enter the type number(s) when you
set the hard disk drive configuration in the SETUP program.
Supported Video ZIP Chips
Manufacturer
I Part number
1 GM71 C4256AZ-70
1 MT4C42562-6, MT4C4256Z-7
1 KM44C25fXZ-6, KM44C256CZ-7
GoldstaP
Micron®
1 Samsung@
Hard Disk Drive Types
1
Cache Memory
Additional cache memory can be installed in eight sockets in
Bank 0 and Bank 1 on the main system board. The figure
below shows how the SRAM are distributed.
SRAM must,
match type \
in banks
\
\
8KB or 32KB SRAM chips can be installed. Bank 0 must be
filled before Bank 1. The SRAM type used for dirty RAM and
tag RAM must match the type installed in the banks. The
table below shows the possible configurations.
Cache Memory Configuration
Actual size when formatted may be slightly different than the size listed on the
drive label
t Hard disk drive supported in translate mode
$ Epson drives
l
10/1/93
EPSON Equity 4+ 7
EPSON Equity 4+
Password
lnstallation / Support Tips
Make sure that you do not forget the password you set up.
If you do:
Mouse and Keyboard
1. Disable it by setting DIP switch 4 on the main system
board to OFF.
Cl When connecting the mouse and keyboard to the
computer, be careful to plug them into the proper ports.
Although the ports are physically identical, they are not
interchangeable, and damage may occur to the main
system board if you plug the connectors into the wrong
ports.
2. Then turn the computer on and off again.
3. Set DIP switch 4 to ON to enable the password function.
4. Run SETUP to enter a new password, if desired.
Installing Diskette Drives
Users can enter a hot key designation in SETUP to secure
the system from unauthorized users. Once a password
and hot key have been set, when the hot key is pressed,
the keyboard and mouse lock until the user enters the
password.
Cl Make sure that the drive type has been correctly selected
in the SETUP program.
Installing Hard Disk Drives
It is recommended that a 16-bit, AT-type hard disk
controller be used if you are installing a drive that cannot
use the embedded IDE interface. If you install a non-IDE
hard disk drive and controller card, you need to use the
SETUP program to disable the built-in IDE hard disk drive
interface.
When installing a hard disk drive, see the hard disk drive
types table on page 7 and use the SETUP program to select
the correct type number for the drive. You can select a
type number that matches the parameters for the drive or
a type number with parameters having lesser values, as
long as they do not exceed the maximum capacity (in MB)
of the drive. If there is no match for the drive, you can
select a user-defined drive type (47) and enter the drive’s
exact parameters.
Software Problems
Cl When installing a copy-protected software package, first
try the installation at fast speed. If this does not work
properly, select slow speed by pressing the Ctrl and Alt
keys and the - key on the numeric keypad
simultaneously. Try loading the program at slow speed
and then switching to fast speed, if possible.
Cl When using a software package that uses a key disk as its
copy-protection method, try loading it at fast speed. If this
does not work, load it at slow speed.
EPSON Equity 4+ 8
Booting Sequence
Cl If you cannot boot the computer from the hard disk drive,
make sure the booting sequence in the SETUP program is
set to A, C. Then boot the computer from a system diskette
in drive A.
Information Reference List
Engineering Change Notices
None.
Technical Information Bulletins
None.
Product Support Bulletins
None.
Related Documentation
TM-EQ4+
Epson Equity 4+ Service Manual
PL-EQ4+
Epson Equity 4+ Parts Price List
400264700
Epson Equity 4+ User’s Guide
10/1/93