Epson Computer Instructions for use

EPSON Endeavor L
power
(SPEED)
hard disk diskette
power
light
accesslight drive
button
Memory
bay for hard disk, diskette drive,
CD-ROM drive, tape drive, or other
option card slots
Video RAM
ROM
Shadow RAM
Cache
Math
coprocessor
Computer Specifications
Clock/calendar
CPU and Memory
32-bit CPU Intel 486SX, DX, or DX2 processor
upgradable to faster, more powerful
processors, including SX2, DX4, or
Pentium OverDrive processors; DX4
processors require an adapter board to
regulate voltage
Energy Star Low power consumption, Energy Star
compliant in base configurations
(consumes less than 30 Watts)
System speed Fast and slow processor speeds available;
fast speed is the speed of your processor
and slow speed is 8 MHz; 0 wait state
memory access at fast speed
Press Ctrl, Alt, and - to select slow speed or
Ctrl, Alt, and + to select fast speed (use the
- or + on the numeric keypad); default
system speed selectable through SETUP
Controllers
Video
Diskette
Hard disk
Interfaces
Monitor
ISA bus speed for all processors is
8.3 MHz; local bus video speed reflects the
speed of the processor; at fast speed,
DX2/50 and DX2/66 processors run
internally at 50 and 66 MHz, but run
externally at 25 and 33 MHz; local bus
speeds for DX/2 processors are 25 and
33 MHz respectively
4MB RAM standard on system board;
expandable to 36MB using 1MB, 4MB, and
16MB SIMMs; SIMMs must be 72-pin,
32-bit or 36-bit, fast-page mode type with
an access speed of 70ns
128KB system and video BIOS and SETUP
code located in EPROM on main system
board
512KB or 1MB DRAM standard on main
system board; 512KB expandable to 1MB
using a 256 x 16-bit, 40-pin SOJ DRAM
chip
Supports shadowing of system and video
BIOS ROM into RAM
8KB of internal cache on processor;
supports 32KB, 64KB, 128KB, or 256KB of
external cache using 28-pin, 8 x 8, 20ns
DIP chips or 28-pin, 32 x 8, 20ns DIP chips
and 28-pin, 32 x 8, 15ns tag chips
For SX-based systems, can install an
80487SX processor with math coprocessor
support; math coprocessor built into
DX-based and Pentium OverDrive
processors
Real-time clock, calendar, and CMOS
RAM socketed on main system board with
external 3.6V battery backup
Cirrus Logic CD5428 high speed super
VGA local bus on-board controller with
True Color support
Controller on main system board supports
up to two diskette drives or one diskette
drive and one tape drive
Interface on main system board supports
up to two IDE hard disk drives with
built-in controller
Local bus SVGA interface for fixed or
multi-frequency monitor built into system
board; 15-pin, D-shell connector
3/94 EPSON Endeavor L - 1

EPSON Endeavor L
SVGA feature
connector
Parallel
Serial
Keyboard
Mouse
Option slots
Speaker
Mass storage
Diskette drives
Hard disk
drives
Other devices
Keyboard
SETUP
Program
SVGA pass-through interface built into
main system board; 26-pin connector
One standard 8-bit parallel uni- or
bi-directional interface built into main
system board; I/O address selectable
through SETUP; 25-pin, D-shell connector
Two RS-232C, programmable,
asynchronous interfaces built into main
system board; 9-pin, D-shell connectors
PS/2 compatible keyboard interface built
into main system board; 6-pin, mini DIN
connector
PS/2 compatible mouse interface built into
main system board; 6-pin mini DIN
connector
Four 16-bit (or 8-bit) I/O expansion slots,
ISA compatible, 8.33 MHz bus speed; three
slots accommodate any size card, bottom
slot can hold a half size card
Internal, piezo-electric speaker on main
board
Internal mounts:
One
3!4-inch wide, half-height
Externally accessible mounts:
Two 5.25-inch wide, half-height
3.5-inch diskette drive, 720KB or 1.44MB
storage capacity
5.25-inch diskette drive, 360KB or 1.2MB
storage capacity
Combination diskette drive; 3.5-inch,
1.44MB and 5.25-inch, 1.2MB
341-&h form factor hard disk drive(s), up
to half-height size; the first mounted in the
vertical internal bay and the second
mounted in an externally accessible,
horizontal bay
Half-height tape drive, CD-ROM drive,
optical drive, or other storage device;
5Mr~h or 3Wnch with mounting frames
Detachable, two-position height; 101 or
102 sculpted keys; country-dependent
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
EPSON Endeavor L - 2
System security Password (up to 8 characters) defined in
SETUP for system boot and keyboard
unlock; definable hot key combination
locks the keyboard and mouse
Virus protection Write protection feature for boot sector of
the hard disk drive
Physical Characteristics
Width
Depth
Height
weight
Power Supply
Type
Input ranges
Maximum
outputs
Frequency
Cables
14.8 inches (370 mm)
16.5 inches (412 mm)
4.8 inches (120 mm)
16.7 lb (7.5 kg), with one diskette drive and
one hard disk, but without keyboard
85 Watt, Autosensing, UL listed, fan-cooled
100V to 125V
200V to 240v
+5 VDC at 11 Amps, -5 VDC at 0.3 Amp,
+12 VDC at 2.0 Amps, -12 VDC at 0.3 Amp
50/60Hz
Two to main system board; four to mass
storage devices
Option Slot Power Limits
Maximum current +5 Volts
-5 volts
+12 Volts
-12 volts
For each slot
7 Amps 0.3 Amp 1.5 Amps 0.3 Amp
For all slots*
11 Amps 0.3 Amp 2 Amps
0.3 Amp
Environmental Requirements
Non-operating
Condition range
range
Storage range
Temperature 41° to 90° F -4° to 140° F-4° to 140° F
(5° to 32° C) (-20° to 60° C)
(-20° to 60°C)
Humidity (non 20% to 90%
1O% to 90% 1O% to 90%
condensing)
Altitude -330 to 9,900 ft -330 to 39,600 ft -330 to 39,600 ft
(-100 to 3,000 m)
(-100 to 12,000 m) (-100 to 12,000 m)
Maximum wet
68° F (20° C) 104° F (40° C) 134° F (57° C)
bulb
Acoustical noise
37.5 dB N/A N/A
3/94

EPSON Endeavor L
Major Subassemblies
J3
SVGA
feature
connector \
DIP -
switches
micro- -
processor
battery
Jumper and DIP Switch Settings
Jumper settings
1 Jumper 1 Jumper 1
I
number setting Function
J3 A* Enable the built-in VGA adapter
B Disable the built-in VGA adapter
J4** AEnable DX-based or Pentium-based processor
in PGA
socket
B Enable SX-based processor
in PGA socket
l Factory setting
**
Factory set according to system CPU
External cache jumper settings
option card
- CN3
P
DIP switch settings
Switch
Switch
number setting Function
3** On CPU Installed in PGA socket
off
CPU not installed in PGA socket
4
On* Password enable
off Password disable
5On* Color monitor
off Monochrome monitor
l Factory setting
** Factory set according to system type
Clock speed DIP switch settings
CPU clock speed
25 MHz
33 MHz
Switch 1
off
On
Switch 2
On
off
Factory setting based on amount of external cache installed, if applicable
3/94 EPSON Endeavor L - 3

EPSON Endeavor L
-
System board components and connectors
SIMM Installation
Your computer comes with 4MB of memory on the system
board. You can increase the memory up to 36MB by installing
1MB, 4MB, and 16MB SIMMs in the computer’s two SIMM
sockets. The following table shows the possible SIMM
configurations. You can install SIMMs in either SIMM socket.
SIMM configuration
On-board
1 SIMM1 1 SIMM2 1 Total memory
4MB
1 None 1 None 4MB*
4MB
1MB
4MB 1MB
4MB 4MB
4MB 4MB
4MB 16MB
4MB 16MB
4MB 16MB
4MB
16MB
None
1MB
None
4MB
None
1MB
4MB
16MB
5MB
6MB
8MB
12MB
20MB
21MB
24MB
36MB
l
Standard memory on the system board
Use only 32-bit, 72-pin, fast-page mode SIMMs that operate
at an access speed of 70ns. If 32-bit SIMMs are unavailable,
you can use 36-bit SIMMs instead.
Video Memory
This system comes with 512KB or 1MB of video memory. You
can increase the video memory to 1MB by installing a video
DRAM, 40-pin, 256KB x X-bit, SOJ chip.
Video resolutions and colors
l Non-interlaced and interlaced
** Interlaced
External Cache
EPSON Authorized Servicers can install 32KB, 64KB, 128KB,
or 256KB of external cache on this system.
0 To install 32KB or 64KB of external cache, use SRAM,
28-pin, 8 x 8, 20ns DIP chips
P To install 128KB or 256KB of external cache, use SRAM,
28-pin, 32 x 8, 20ns DIP chips
0 For all configurations of external cache, use two 28-pin,
32 x 8, 15ns tag chips
0 If you install external cache, make sure you set jumpers J5,
J6, J7, J8, and J9 as described on page 3.
For the cache memory to work properly, you must install
chips in the following configuration (each bank contains four
cache memory sockets).
Cache memory configurations
3/94 EPSON Endeavor L - 5

EPSON Endeavor L
Microprocessor Upgrades
The computer’s processor can be upgraded by replacing the
existing microprocessor with a faster one. You can either
purchase an upgrade kit from EPSON or buy the individual
components separately, as listed in the following table.
Microprocessor upgrade components
l Actual formatted size may be slightly different than size on drive label
SX2, DX/33, DX/50, DX2/50, DX2/66, DX4, and Pentium
OverDrive processor upgrades require a heat sink.
You may also need to change the settings of jumper J4 or DIP
switches 1 and 2. See page 3.
Drive Option Information
Hard disk drive options for 1-inch IDE drives
Hard Disk Drive Types
The table below lists types of hard disk drives supported by
the computer. Check this table and the hard disk drive
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.
Hard disk drive types
l Select 1 or none for the precomp value. lf neither of these options are
available, select the maximum available precomp value.
EPSON Endeavor L - 6
3/94

EPSON Endeavor L
IDE hard disk drive
Hardware Interrupts
l CS (cable selection) can he jumpered for any configuration. When CS is used,
the drive Is a master If pin 28 is grounded, or a slave if pin 28 Is not
grounded.
System Memory Map
Diskette and magneto optical drive options
DMA Assignments
3/94 EPSON Endeavor L - 7

EPSON Endeavor L
System l/O Address Map Connector Pin Assignments
Parallel port connector pin assignments (CN8)
Serial port connector pin assignments (CN9, CN10)
Pin Signal Pin Signal
1 Data canter detect 6Data set ready
2Receive data 7Request to send
3Transmit data 6Clear to send
4
Data terminal ready 9
Ring Indicator
15 1 Ground
III
Keyboard connector pin assignments (CN5)
Pin Signal Pin Signal
1 Data
4 Vcc
2Reset 5
clock
3 Ground
6NC
Mouse connector pin assignments (CN4)
Pin Signal Pin
Signal
1 Data 4VCC
2NC 5
clock
3 Ground
6 ‘NC
VGA port connector pin assignments (CN13)
Pin Signal Pin Signal Pin Signal
1 Red 6
Ground
11 Reserved
2 Green 7 Ground
12 Reserved
3 Blue
6 Ground 13 Horizontal sync
4 NC
5 Ground
9NC 14 Vertical sync
10 Ground
15 NC
VGA feature connector (CN14)
EPSON Endeavor L - 83/94

EPSON Endeavor L
Power supply connector pin assignments (CN1)
Diskette drive connector pin assignments (CN11)
**All odd-numbered pins are grounds
Hard disk drive connector pin assignments (CN12)
‘Active low logic
Speaker connector pin assignments (SP1)
Pin
1
2
Signal
Speaker
(+)
Battery connector pin assignments (CN3)
Pin Signal
1 RED wire (3.6v)
2BLACK (Ground)
Option card riser board connector pin 1;
*Active low logic
Option slot connector pin assignments
*Active low logic
assignments (CN2)
3/94 EPSON Endeavor L - 9

EPSON Endeavor L
l Active low logic
Installation/Support Tips
Installing Diskette Drives
Make sure that the drive type has been correctly selected in
the SETUP program.
Installing Hard Disk Drives
When installing a hard disk drive, see the hard disk drive
type tables on page 6 to select the correct type number for
the drive. If the parameters for your drive are not listed,
you can define your own drive type by selecting drive
type 47 and entering the drive’s exact parameters for this
user-defined drive type.
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.
Software Problems
0 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.
0 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.
Booting Sequence
If you cannot boot the computer from the hard disk, make
sure the booting sequence in SETUP is set to A: then C:.
Then boot the computer from a system diskette in drive A.
Password
Make sure that you do not forget the password you set up. If
you do:
Disable the password by setting DIP switch 4 on the main
system board to OFF.
Then turn the computer on and off again.
Set DIP switch 4 to ON to enable the password function.
Run SETUP to enter a new password, if desired.
You can also 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 the user enters the
password.
Information Reference List
Engineering Change Notices
None.
Technical Information Bulletins
None.
Product Support Bulletins
None.
Related Documentation
TM-ENDVRL EPSON Endeavor L Service Manual
PL-ENDVRL EPSON Endeavor L Parts Price List
400305600
EPSON Endeavor L User’s Guide
EPSON Endeavor L - 10
3/94