Epson 4SX/25 Laptop User Manual

EPSON Equity 4SX/25,4DX/33, and 4DX2/50
power
(SPEED) light
hard disk
access light
diskette
drive
bay for hard disk, diskette,
tape, CD-ROM, or other drive
11 O/220 VAC switch
.
power keyboard
&al
inlet
port
I port1
mouse
Pofl
option card slots
Serial
port2
To select low speed, press the Ctrl, Alt,
and - keys simultaneously. To select
high speed, press the Ctrl, Alt, and + keys
simultaneously. (Use the - or + key on the
numeric keypad.)
power
button
\
parallel
poft
VGA
monitor
Port
Computer Specifications
Memory
4MB RAM standard on a SIMM;
expandable using lMB, 4MB, or 16MB
SWIMS to 32MB (maximum); SlMMs 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
Shadow RAM
Supports shadowing of system and video
BIOS ROM into RAM
Cache
8KB of internal cache (built into the
microprocessor)
Math
coprocessor
On 4DX/33 and 4DX2/50 systems, 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
Controllers
Video
Cirrus® VGA controller on main system
board; provides resolutions up to
1024 x 768
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
CPU and Memory
32-bit CPU
4SX/25: Intel® #36SX, 25 MHz
microprocessor; can be replaced with
optional 487SX/25 or ODP486-25
OverDriv&” processor
4DX/33: Intel i486DX, 33 MHz
microprocessor; can be replaced with
optional ODP486-33 OverDrive processor
4DX2/50: Intel i486DX2,50 MHz
microprocessor
System speed
High and low speeds available; high speed
depends on CPU (25 MHZ, 33 MHz, or
50 MHz), low speed is simulated 8 MHz
speed; speed selection through keyboard
command; 0 wait state memory access at
highspeed
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
4/1/93
EPSON Equity-l
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50
Keyboard
PS/2 compatible keyboard interface built
into main system board; num lock setting
selectable through SETUP; 6-pin, mini DIN
connector
Mouse
Video Modes
pode
~GA
640x460
640X460
640x460
connector
600X600
Four 16-bit (or 8-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/l10 mm)
Speaker
Internal
Alternate VGA
IBM compatible VGA pass-through
interface built into main system board;
26-pin CoMector
Mass Storage
Three drives maximum (two horizontal
mounts and one vertical mount),
configurable using the following:
Horizontal
mounts
Up to two externally-accessible,
half-height horizontal mounts; each
horizontal bay can accommodate one
5%inch form factor diskette, tape,
CD-ROM, or other drive, or one 3&r&
form factor hard disk, diskette, tape,
CD-ROM, or other drive with 5!&nch
mounting frames attached
Vertical
mount
Diskette drives
1 colors
I16
256
32,766'
65,536’
16,777,216’*
16
256
32,766'
65,536'
16
640X460
PS/2 compatible mouse interface built into
main system board; 6-pin, mini DIN
Option slots
pesolunon
p4o~460
600x600
600X600
600X600
1024x766
1024x766
1 Memory required 1
1512KB
512KB
1MB
1MB
1MB
512KB
512KB
1MB
1MB
512KB
IME
256
* Hi-Color
l *
True Color
Power Supply
Type
145 Watt, fan cooled
Input ranges
98 to 132 VAC and 180 to 264 VAC,
switch-selectable voltage
Maximum
outputs
+5 VDC at 18 Amps, +12 VDC at 4.0 Amps,
- 5 VDC at 0.3 Amps, -12 VDC at 0.3 Amps
Frequent y
47to63Hz
Cables
Two to main system board; four to mass
storage devices
Option Slot Power Limits
Maxlmum current
Foreachsbt
For all four slots
One internal third- or half-height vertical
mount; vertical bay can accommodate one
3Nnch form factor hard disk or other
drive
+!S Volts
7 Amps
16Amps
+12 Volts -5 Volts and -12 Volts
1.5 Amps 0.5 Amps
3Amps
0.5Amps
Environmental Requirements
5.25~inch, 1.2MB (high-density)
3.5~inch, l&MB (highdensity)
5.25-&h, 360KB (doubledensity)
3.5-&h, 720KB (doubledensity)
Hard disk
drives
3&-&h form factor hard disk drive(s),
third- or half-height size; the first mounted
vertically, second mounted horizontally
Other devices
Half-height tape drive, CD-ROM drive, or
other storage device; 5%inch form factor
or 31/1-&h form factor with 51/4-&h
mounting frames attached
Keyboard
SETUP
Program
EPSON Equity-2
Physical Characteristics
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
Width
14.8 inches (370 mm)
Depth
Height
16.5 inches (412 mm)
weight
Stored in ROM; accessible by pressing the
Delete key at the SETUP prompt during boot
4/1/93
4.8 inches (120
mm)
16.7 lb (7.5 kg) with one diskette drive and
one hard disk, without keyboard
EPSON Equity 4SX/25,4DX/33, and 4DX2/50
Main System Board Diagram
parallel
VGA video
serial 2
keyboard
mouse
serial 1
ELI-d
CN3
CN2
QQQ
1
-
power supply
connectors
VGA feature
connector
ml
U18
UlQ
standard 512KB
video
memory
option board
riser card
connector
CPU chip
<
u21
optional 512KB
OverDrive socket
(ZIF socket)
CN 0000000000000000
0000000000000000
1
U,..a
0000000000000000000
7
1
1
1 A 10
,Ie 1 Ill
0000000000000000000
I
I
0
E
u37
TOSHIBA
TC6933ES
U38
Ia
II
- HDD connector
nn
Iii
C
- FDD connector
I
I
I
I
I
I
I
I
”
----e--
CPU
(PQFP)
- - 1
I
I
I
I
I
U27
I
I
I
I
I
I
0
2
0
U3Q
mu
CN17CNIS CN15 CN14 CN13 CN12 CNll
OrlnnlInn
3
\
I
SIMM 1
u35
u33
\
SIMM0, 4MB SIMM standard
4/1/93
EPSON Equity-3
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50
Serial Port Connectors (CN4 and CN5)
Major Subassemblies
main system option card connector board
board
(option board riser card)
power supply
Serial Port Connector Pin Assignments
Keyboard Connector (CN3) and
Mouse Connector (CN2)
pin 6
pin 5
pin 3
pin 4
i
’ SIMM 0
SIMM 1
\
diskette
speaker drive
pin 2
horizontal
drive bays
Although the keyboard and mouse connectors are physically
identical, they cannot be used interchangeably.
Keybcmrd and Mouse Connector Pin Assignments
Connector Pin Assignments
pin 1
i-1
Pin
4
5
6
Pin Signal
Data
1
Reserved
2
Ground
3
Parallel Port Connector (CN6)
pin 13
pin 1
VGA Port Connector (CN7)
pin 5
pin 25
6
7
8
1 9
1 Data 7
*Active low logic
EPSON Equity-4
Pin Signal
19
Signal ground
Pin Signal
10
ACK’
I18
pin 1
pin 14
Parallel Port Connector Pin Assignments
Pin Signal
1
Strobe
Signal
+5 VDC (fused)
Clock
Resewed
1 Signal ground
pin 10
pin 6
pin 15
pin 11
VGA Port Connector Pin Assignments
1
4/1/93
EPSON Equity 4SX/25,4DX/33, and 4DX2/50
VGA Feature Connector (CN8)
System I/O Address Map
pin 25
pin 1
‘Yeeaeeeeoeaaw
,feooooooooooo~,
pin 2 ’
’ pin 26
VGA Feature Connector Pin Assignments
IData
8
1 PCLK
9
*Active low logic
I17
118
1 ENDATA’
1 ENSYNC’
DMA Assignments
Level
DMAO
DMAl
DMA2
DMA3
DMAS
DMAG
DMA7
Assigned device
Spare @-bit)
Spare (&bit)
FDD controller (&bit)
Spare (&bit)
Spare (16~bit)
Spare (16~bit)
Spare (16~bit)
Hardware Interrupts
IRQ no.
IRQO
IRQl
iRQ3
Function
Timer output
Keyboard
Serial port 2
iRQ13
iRQ14
iRQ15
Math coprocessor
HDD controller
Avaiiabie
I26
1 Not connected
Hex address
000-OlF
020-03F
040 - 05F
060-06F
070 - 07F (CMOS)
080-09F
OAO - OBF
OCO - ODF
OF0
OF1
OF8 - OFF
lFO- lF8
200 - 207
278 - 27F
280 - 2DF
2El
2E2 and 2E3
2F8 - 2FF
300-31F
1348’357
360-36F
378 - 37F
380-38F
390-393
3A0 - 3AF
3BO - 3BF
X0-3CF
Assigned device
DMA controller 1,8237A-5
interrupt controller 1, 8259A, master
Timer, 8254-2
8042 (Keyboard and mouse)
Real-time clock NMI (non-maskable interrupt mask)
DMA page register, 74LS612
interrupt controller 2, 8259A
DMA controller 2,8237A-5
Clear math coprocessor busy
Reset math coprocessor
Math coprocessor
Hard disk
Game IK)
Parallel printer port 2
Alternate enhanced graphics adapter
GPIB (adapter 0)
Data acquisition (adapter 0)
Serial port 2
Prototype card
DCA 3278
PC network
Parallel printer port 1
SDLC, bisync 2
Cluster
Bisynchronous 1
Monochrome display and printer adapter
Enhanced graphics adapter
1 B90-893
1 EE2 - EE3
82El
A2El
C2El
E2El
4/1/93
EPSON Equity-5
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50
If the computer’s microprocessor is a FQFP type, it is surfacemounted on the main system board. To add an OverDrive
processor, install it in the empty OverDrive socket and
disable the original microprocessor by setting jumper J23 to
position 2-3. Also make sure JlO, J11, and J12 are set correctly.
Jumper Settings
J5
J7
Processor Speed Jumper Settirzgs
Processor type J19
SXI25, DX2150 O f f
(25 MHz)
DXI33, DX2/66 O n
(33 MHz)
520
Off
521
On
J22
Off
Off
Off
Off
You need to change the processor speed jumper settings if
you replace a 25 MHz processor with a 33 MHz processor.
,J13
J15
Processor Chips
If you have the 4SX/25 or 4DX/33 system, you can install an
Intel OverDrive processor on the main system board to
effectively double the internal clock speed of the computer’s
microprocessor. Alternatively, for the 4SX/25, you can install
the 487SX/25 microprocessor with built-in math coprocessor.
OverDrive Processors
Adapter, CMOS, and PQFP Jumper Settings
Jumper
number
J5”’
Jumper
setting
On
Off’
J6
l-2’
2-3
JT”*
On
Off’
l-2’
J8
1 J18
J23”
2-3
1-2
12-3
Function
Supports CGA adapters
Supports monochrome, EGA, MCGA, and
VGA adapters
Enabtes the built-in VGA display adapter
Disables the built-in VGA display adapter so
you can use a disphy adapter on an option
card in the computer as the primary adapter
Returns CMOS RAM to the factory settings
Retains SETUP program settings
Reserved
SIMM lnstallation
The computer comes with 4MB of memory installed in a
SIMM socket. To increase the amount of memory in the
computer up to 32MB, you can 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.
1 Gate A20 reset (standard setting for windows) I
Keyboard reset
Enables the WFP SW25 processor
1 DisaMes the PQFP SX/25 processor
The following table shows the possible SIMM configurations;
do not install memory in any other configuration. Make sure
that both SIMMs operate at the same speed.
SIMM Configurations
SiMM 0
4MB
Factory setting
** Factory setting depends on type of processor on system board
** Two pin jumpers
l
B
B
B
l
Processor Jumper Settings
Processor type
486SX (in OverDrive socket)
487SX (in OverDrive socket)
I
1 or 486SX PQFP
486DX (in OverDrive socket)
JlO
2-3
l-2
I
Jll
2-3
1-2
J12
Off
2-3
I
I
I
I
1 1-2
1 1-2
1 1-2
1
I
You need to change the processor jumper settings if you
install a new processor chip. The settings for J10, J11, and J12
must correspond to the type of chip installed.
EPSON Equity-6
OverDrive processor
ODP486-25
ODP486-33
System
4SW25
4DXl33
16MB
4Mi B
16L 1B
t
* Standard memory
4/1/93
SIMM 1
1 Total memory
14MB’
i AMR
. . ..-
i AMR
. . ..-
1 1MB
4MB
4MB
I5MB
5MB
8MB
4MB
16MB
16MB
20MB
20MB
32MB
I
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50
Hard Disk Drive Types (continued)
Video Memory
If the computer has 512KB of video memory, you can install
four 256K x 4 bit, 7Ons, 20-pin DRAM DIP (Dual InIine
Package) chips to increase the video memory to 1MB. The
following table lists which DRAM DIP chips you can install
on the main system board.
37
38
3Q
40
202
81
115
8-l
141 Ia
42
43
88
68
44
45
46
47
48
4Q
It37
42
40
Supported DRAM Chips
I
I Part number
Manufacturer
I Mitsubish?
I
I M5M44258BP-7
Toshibaw
TC514258AP-70
MT4C4258-70
Micron@
Hard Disk Drive Types
The table below lists types of hard disk drives you can use in
the computer. Check this table and your hard disk manual to
find the correct type number(s) for the hard disk drive(s)
installed in the computer. You need to enter the type
number(s) when you set the hard disk drive configuration in
the SETUP program.
;
$
Cyiinden
no. (in #8) (CYL)
IO
306
1
2
20
615
3
4
5
6
33
62
46
20
615
940
940
615
6
8
6
4
17
17
128
300
305
615
17
17
17
17
300
512
512
none
615
Q40
Q40
615
5
8
36
17
nam
512
1022
1023
Inane
512
128
1828
1023
618
I828
1024
615
1
IO
5
8
13
17
17
CP-3204F
CP-2084
CP-30104 $
70fi0~ MK2024FC
CDCQ4216-106
(ESDI)
CDC 94216-106
1325,3085,LAN64,
1 XlIO85, NDR1085
/MK-156F
1
1
Reserved
Userdefned
UserdeWed
Achralsizewhenknnatsdmaybe~tlydifferenthanhe~EstedonIhedriveLabel.
Harddiskdrivesuppottedintranslatemode
Epsondrives
Epson Hard Disk Drive Types
W 8ectors
LandingDriven&
(HD8) (SEC) prewmp zone
manuhctuler
4
4
1022
1024
1
682
547
760
PA
1022
If the computer has an Epson SOMB, 12OMB, or 24OMB hard
disk drive, select the appropriate type number from the table
below when you run the SETUP program.
Hard Disk Drive Types
nP@ size’
15
38
38
3Q
17
rKm
rims
nuls
II022
16
8
8
10
683
548
761
mo
Type number
24
39
34
ST-225, ST4026,
wo-93024
ST-138A t
Epson hard disk drive
80MB
120MB
240MB
lnstallation/Support Tips
CP-3024,ST-125,
The computer has an input voltage selection switch on the
back panel to select between 115V, for USA and Canadian
use, and 23OV, for use in other countries.
Mouse and Keyboard
16
17
120
I40
1612
1 977
14
15
117
117
lo
1300
1663
1 Q77
1
1 cocQ42tE-51,
I
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.
Installing Diskette Drives
Make sure that the drive type has been correctly selected in
the SETUP program.
I32
142
II023
15
I17
Inam
I1023
1
1
4/1/93
EPSON Equity-7
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50
Installing Hard Disk Drives
Ll It is recommended that a X-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.
Information Reference List
Engineering Change Notices
None.
Technical Information Bulletins
0 When installing a hard disk drive, see the hard disk drive
type tables 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 (48 or 49) and enter the
drive’s exact parameters.
None.
Product Support Bulletins
None.
Related Documentation
TM-EQTY4
EPSON Equity Service Manual
PGEQTY4
EPSON Equity Parts Price List
Software Problems
SPKEQTY4
EPSON Equity Self Paced Kit
Ll When installing a copy-protected software package, first
try the installation at high speed. If this does not work
properly, select low speed by pressing the Ctrl and Alt keys
and the - key on the numeric keypad simultaneously. Try
loading the program at low speed and then switching to
high speed, if possible.
400195600
EPSON Equity Setup Guide
400195400
EPSON Equity User’s Guide
400195ooo
EPSON VGA Utilities Guide
Cl When using a software package that uses a key disk as its
copy-protection method, try loading it at high speed. If
this does not work, load it at low speed.
Password
Make sure that you do not forget the password you set up. If
you do, you must disable it by setting jumper J7 on the main
system board to the ON position.
If you set J7 to ON, however, CMOS RAM returns to the
factory settings and you need to run the SETUP program to
enter your system configuration again.
Booting Sequence
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.
EPSON Equity-8
4/1/93