Download Alpha Microsystems Eagle 500 Service manual

Eagle Computer
Service Manual
For Authorized
Service Personnel Only
DSS-10517-00, B01
© 1998 ALPHA MICROSYSTEMS
FIRST EDITION: July 1998
To re-order this document, request part number DSS-10517-00.
FCC Notice
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own
expense.
Canadian Department of Communications Compliance Statement
This equipment does not exceed Class A limits per radio noise emissions for digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications. Operation in a residential area may cause unacceptable interference
to radio and TV reception requiring the owner or operator to take whatever steps are necessary to correct the interference.
Avis de Conformité aux Normes du Ministère des Communications du Canada
Cet équipment ne deapsse pas les limits de Classe A d’émission de bruits radioélectriques pour les appareils numeriques tels que
prescrites par le Règlement sur le brouillage radioélectrique établi par le ministère des Communications du Canada. L’exploitation
faite en milleu résidential peut entrainer le brouillage des réceptions radio et tele, ce qui obligerait le propriétaire ou l’opératour à
pendre les dispositions nécessaires pour en éliminer les causes.
Battery Warning
CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by
the manufacturer. Discard used batteries according to the manufacturer’s instructions.
ATTENTION: Il y a danger d’explosion s’il y a replacement incorrect de la batterie. Remplacer uniquement avec une batterie du
même type ou d’un type recommandé par le constructeur. Mettre au rébut les batteries usagées conformément aux instructions du
fabricant.
For AM-3500-E100, -E200, -E300, -E400, -E500 and AM-990-01 systems replace battery with Panasonic or Ray-O-Vac BR2325
only. For AM-3500-E550, AM-3500-6000, and AM-990-04 systems, replace batteries with Panasonic or Ray-O-Vac BR1225 only.
Use of other batteries may present a risk of fire or explosion. Replacement batteries may be ordered from your authorized Alpha
Micro reseller.
Safety Warning
This computer contains no user-configurable components that require opening the computer case. Because the power supply in
this computer is capable of outputting high current levels hazardous to your safety, the computer case should only be opened by an
authorized service technician.
Cet ordinateur ne contient aucune pièce configurable par l’utilisateur qui nécessite l’ouverture du boitier. L’alimentation de cet
ordinateur peut preduire des nivaeux de tensions dangereux, le boitier ne devrait donc être ouvert que par un technician autoriaé.
SOFTWARE SECURITY DEVICE IDENTIFICATION NUMBER: _________________
The Alpha Micro Software Security Device (SSD) is a customized integrated circuit that personalizes the computer, providing
identity verification for it. Certain Alpha Micro and non-Alpha Micro software may require that your computer contain an SSD in
order to run software that has been customized to run only on your computer.
Please enter the identification of your SSD above. The SSD identification number should be on your computer ID label under “SSD
Serial No.” (Another way of finding the number is to look at the SSD itself. The SSD is located in an integrated circuit location on
the CPU board; its identification number is printed on the SSD itself.) Software vendors may ask you for the SSD number if they are
customizing software to run only on your computer.
This document may contain references to products covered under the following U.S. Patent Number(s): 4,530,048
ALPHA MICROSYSTEMS
2722 Fairview Street
P.O. Box 25059
Santa Ana, CA 92704
Table of Contents
INTRODUCTION
EAGLE SERIES COMPUTERS
ACCESSING YOUR COMPUTER
Electronic Equipment Handling Precautions
HARDWARE CONFIGURABLE OPTIONS
Printed Circuit Board Configuration
AM-137 Board Configuration
AM-319(-00) Board Configuration
AM-319(-10) Board Configuration
AM-319(-20) Board Configuration
Remote Reset Capability
Boot ID Configuration Switch
Replacing the Time and Date Battery
SSD Chip and Boot PROM Handling
Roadrunner AM-172 Board Configuration
Roadrunner AM-174 Board Configuration
ACCESSING YOUR ROADRUNNER BOARD
UPGRADING ROADRUNNER ON-BOARD MEMORY
Installing Memory
PERIPHERAL MOUNTING
Eagle 100-500 Rear Panel Screws
Eagle 550 Rear Panel Screws
Side Mounting Bracket Removal - All Eagles
X-Bus Cable Routing
1
1
2
3
4
4
5
7
8
9
10
10
10
12
13
14
15
18
18
19
21
22
23
24
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 1
INTRODUCTION
The instructions in this document are intended only for authorized service personnel. Eagle series
computers contain a high-output power supply, which produces current levels high enough to
make it unsafe for unauthorized persons to perform work inside the chassis.
Note: This document describes the Eagle Series computer packaged in the standard Eagle enclosure. For
information on the AM-990 packaging option, consult the AM-990 SBC Service Manual, part number
DSS-10524-00.
The following procedures are discussed:
• Removing your computer’s top cover.
• Electronic equipment handling precautions.
• Printed circuit board configuration options.
• Installing memory.
• Peripheral installation.
EAGLE SERIES COMPUTERS
The instructions in this document are applicable to all computers in the Eagle Series. There are three
basic models that make up the Eagle series: the 100, 300, and 550. There are also the 400 and 500
models, which are more powerful variations of the Eagle 300 computer. Here’s a brief introduction to
the Eagle series lineup:
Eagle 100
A single board computer based on a main electronics board called the AM-137. The
AM-137 board includes all the circuitry found on Alpha Micro’s AM-172 Roadrunner
board.
Eagle 300
Based on the DWB-00319-00 board; can be ordered with either an AM-172 or AM-174
Roadrunner board.
Eagle 400
Created by installing an AM-174 66MHz Roadrunner board into an 300 computer.
Eagle 500
Created by installing an AM-174 80MHz Roadrunner into an Eagle 300 computer.
Eagle 550
Based on the DWB-00319-20 board; can be ordered with the Roadrunner AM-174
80MHZ Roadrunner board.
DSS-10517-00, Rev. B01
Page 2
Eagle Series Computer Service Manual
ACCESSING YOUR COMPUTER
For hardware information on the AM-990 chassis consult the AM-990 SBC Service Manual, part
number DSS-10524-00.
When adding additional equipment or servicing your computer, you need to remove your computer’s top
cover. The top cover is held in place with four Phillips-head screws located on the computer’s rear panel.
To remove the top cover, remove the four screws from the locations indicated in the illustration below.
Once the screws have been removed, slide back and remove the top cover.
The screw locations and cover removal procedure for the “Super Eagle” (Eagle 550) chassis is
identical to the standard Eagle chassis shown in the following two illustrations.
TOP COVER SCREWS
115
ENET
MAIN
ALT
BOOT
H1
SCSI
H2
ETHERNET
PARALLEL 0
PARALLEL 1
G1
G2
F1
F2
E1
E2
D1
D2
C1
C2
B1
B2
A1
A2
Eagle Top Cover Screws
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 3
Eagle Top Cover Removal
Electronic Equipment Handling Precautions
With the AC power cord unplugged and the top cover removed, the components inside your computer
are vulnerable to damage caused by static discharge. Your body and clothing are capable of storing an
electrical charge that can damage or destroy unprotected electronic components. Before handling any
computer hardware, make sure your work area is properly protected against static discharge. There are a
number of commercially available static protection devices, like the wrist strap shown below, designed
specifically to protect your equipment from harmful static discharge.
DSS-10517-00, Rev. B01
Page 4
Eagle Series Computer Service Manual
Static Protection Wrist Strap
HARDWARE CONFIGURABLE OPTIONS
The following sections summarize the configuration options available to let you tailor your hardware to
your needs. Most of these options require gaining access to the main circuit boards within the computer,
and therefore, should be attempted only by qualified technical personnel. Contact your VAR if you
require assistance in this area.
Printed Circuit Board Configuration
The next few sections contain configuration information for the following boards:
AM-137
The Eagle 100 is a single board computer based on a main electronics board called the AM-137. The
AM-137 board includes all the circuitry found on Alpha Micro’s AM-172 Roadrunner board; it also
includes eight on-board DB9 RS232 serial ports, one additional I/O expansion connector, one IDE
(Integrated Device Electronics) disk drive interface connector, one SIMM memory connector, one
parallel port, and an SSD chip.
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 5
AM-319(-00)
The AM-319(-00) board is used with either an AM-172 or AM-174 Roadrunner board in the Eagle 300500 computers. The AM-319 board supports all the I/O ports used to communicate with printers,
terminals, networks, etc. It also contains your computer’s SSD chip and the boot configuration switches.
AM-319(-10)
The AM-319(-10) board is used with either an AM-172 or AM-174 Roadrunner board in the Eagle 200
computer. The AM-319(-10) board supports all the I/O ports used to communicate with printers,
terminals, etc. It also contains your computer’s SSD chip and the boot configuration switches.
AM-319(-20)
The AM-319(-20) board is used in with an AM-174 Roadrunner board in the Eagle 550 computer. The
AM-319(-20) board supports all the I/O ports used to communicate with printers, terminals, networks,
etc. It also contains your computer’s SSD chip and other I/O related circuitry.
AM-172
The (Roadrunner) AM-172 board contains a 68030 CPU chip, one 50-pin SCSI connector, one boot
PROM, and all of your computer’s on-board memory.
AM-174
The (Roadrunner) AM-174 board contains a 68040 CPU chip, one 50-pin SCSI connector, one boot
PROM, and all of your computer’s on-board memory.
AM-137 Board Configuration
The illustration below shows the AM-137 board configured as shipped by Alpha Micro. There are only
two user-configurable jumpers on this board: the W2 Remote Reset jumper and the W7 Memory
Configuration jumpers. All other jumpers should be left in their factory-configured positions. All
possible configurations for jumpers W2 and W7 are shown in the illustration.
DSS-10517-00, Rev. B01
Page 6
Eagle Series Computer Service Manual
BOOT CONFIGURATION
SWITCH
J1
ER
Y
ALPHA MICROSYSTEMS
BA
TT
W1
PARALLEL PORT
W2 "IN" = REMOTE RESET ENABLED
W2 "OUT" = REMOTE RESET DISABLED (DEFAULT)
W2
SSD
U14
U15
RESET SWITCH
J2
FOUR ON-BOARD (4-7)
RS232 SERIAL PORTS
POWER
CONNECTOR
FOUR ON-BOARD (0-3)
RS232 SERIAL PORTS
PIN-1
W3
J3
J4
OSCILLATOR JUMPERS
DO NOT REMOVE
W4
J5
W5
U28
U29
AM-137
MEMORY CONNECTOR
I/O EXPANSION—SUPPORTS AM-318,
AM-318-10, AND AM-314 SERIAL I/O BOARDS,
AND THE AM-366 ETHERNET BOARD
SCSI INTERFACE
J6
IDE INTERFACE
J8
J9
J7
W6
ACTIVE SCSI
TERMINATION
W6
ENABLE
W6
DISABLE
W7
W8
W11
FACTORY
USE ONLY
POWER
W9
RUN
W10
DISK
W12
J11
DISPLAY
PANEL
030
W13
W14
CONNECTOR FOR AM-219
DISKETTE CONTROLLER
J10
MEMORY CONFIGURATION
16MB
W7
8MB
W7
W7
W7
4MB
32MB
AM-137 Board Configuration
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 7
AM-319(-00) Board Configuration
The illustration below shows the AM-319-00 board configured as shipped by Alpha Micro. There are
only two user-configurable jumpers on this board, the W7 Remote Reset jumper and the W10 Ethernet
Media Configuration jumper. All other jumpers should be left in their factory-configured positions. All
possible configurations for jumpers W7 and W10 are shown in the illustration.
ETHERNET MEDIA
CONFIGURATION JUMPER
W10 = ETHERNET A.U.I. CONNECTOR ENABLED
W10 = ETHERNET 10Base-T CONNECTOR ENABLED
REMOTE RESET JUMPER
W7
SPEAKER CONNECTOR
W7
AM-314 / 318 / 318-10
SERIAL I/O EXPANSION
= REMOTE RESET DISABLED
= REMOTE RESET ENABLED
ALPHA MICROSYSTEMS
W7
J13
PARALLEL PORT 1
J12
PARALLEL PORT 0
J15
ETHERNET 15-PIN
A.U.I. PORT
W9
W1
W3
W6
J14
W10
SSD
CHIP
J8
J9
J11
J10
U6
OSCILLATOR JUMPERS
(DO NOT REMOVE)
BOOT CONFIGURATION
SWITCH
PIN-1
J3
J6
W5
J2
J1
J7
ETHERNET 10Base-T
PORT
J5
BATTERY
X-BUS CONNECTORS
POWER SUPPLY
CONNECTORS
DISPLAY PANEL
CONNECTOR
INDICATES PIN-1
FOR ALL CONNECTORS
CONNECTOR FOR AM-219
DISKETTE CONTROLLER
AM-319(-00) Board Configuration
DSS-10517-00, Rev. B01
Page 8
Eagle Series Computer Service Manual
AM-319(-10) Board Configuration
The illustration below shows the AM-319(-10) board configured as shipped by Alpha Micro. There is
only one user-configurable jumper on this board, the W3 Remote Reset jumper. All other jumpers should
be left in their factory-configured positions. All possible configurations for jumper W3 are shown in the
illustration.
CONNECTOR FOR AM-219
DISKETTE CONTROLLER
The J7 I/O expansion slot will also
support the AM-366 Ethernet board.
AM-314 / 318 / 318-10
SERIAL I/O EXPANSION
ALPHA MICROSYSTEMS
RESET BUTTON
AM-319 (-10)
J10
W5
W8
PARALLEL PORT
IDE INTERFACE
CONNECTOR
OSCILLATOR JUMPERS
(DO NOT REMOVE)
U3
W6
J1
J6
SSD
CHIP
PIN-1
FACTORY USE
ONLY
W7
J4
U2
J7
BOOT CONFIGURATION
SWITCH
J2
W9
J9
BATTERY
J5
J8
w4
w3
w2
w1
J3
X-BUS CONNECTORS
W1
POWER SUPPLY
CONNECTORS
W2
W3
W4
DISK LED
REMOTE RESET
POWER LED
CPU ACTIVITY LED
DISPLAY PANEL
CONNECTOR
W3 INSTALLED = REMOTE RESET ENABLED
W3 REMOVED = REMOTE RESET DISABLED (DEFAULT)
AM-319(-10) Board Configuration
DSS-10517-00, Rev. B01
INDICATES PIN-1
FOR ALL CONNECTORS
Eagle Series Computer Service Manual
Page 9
AM-319(-20) Board Configuration
The illustration below shows the AM-319(-20) board configured as shipped by Alpha Micro. There is
only one-user configurable jumper on this board, the JP7 Remote Reset jumper. All other jumpers should
be left in their factory-configured positions.
RJ-45 SERIAL PORTS
UPS INTERFACE
ETHERNET PORTS
TPI
ACTIVITY LEDS
AUI
F1
J2
UPS PORT
J1
T1
T2
JP3
OSC
JP4
OSC
ALPHA MICROSYSTEMS AM319-20
LNK
J3
TX
RX
PORT 3
JP1
PORT 2
SHLD/LOGC
GND
PORT 1
D1
D2
D3
J4
PORT 0
J5
PIO
PORTS
P2
LPT1
P1
LPT3
P5
LPT0
P4
LPT2
P3
G
G
-12
+12
+5
PG
P6
J7
AM-319-20
U57
G
G
G
+5
+5
+5
990/AUX
DC
POWER
DISCON
JP6
FUTURE
OPTIONDO NOT
REMOVE!
DC
POWER
J6
JP5 OSC
32 16
JP5A
BUS
CLOCKDO NOT
CHANGE!
A CHANNEL B CHANNEL
SIO EXP
+5
+5
+5
-5
G
G
P7
P8
ADDRESS/DATA
P9
CONTROL/STATUS
SUPER EAGLE
REMOTE RESET
* OUT = DISABLE
IN = ENABLE
* FACTORY SET
AM-219
FLOPPY
X-BUS
SSD
U73
REM RESET
JP7
U80
+
P10
+
PWR
RESET
EAGLE
DISPLAY
PANEL
SPARE
RUN DISK
JP9 JP10
P11
JP8
P12
990
DISPLAY
PANEL
AM-219
INTFC
ALPHA MICRO
USE ONLY!
TOD
BATTERY
BACKUP
AM-319(-20) Board Configuration
DSS-10517-00, Rev. B01
Page 10
Eagle Series Computer Service Manual
Remote Reset Capability
The remote reset option jumper is shown in the AM-137, AM-319(-00), AM-319(-10), and AM-319(-20)
illustrations. When remote reset is enabled, you can reset your computer via the terminal cable attached
to serial port #0. This is done by connecting a push-button switch between pin-1 and pin-7 (signal
ground) at the terminal end of the cable. When remote reset is enabled by installing the appropriate
jumper, pressing the switch will short pin-1 and pin-7 together and the computer will reset.
You can also enable remote reset by using the remote reset cable, DWB-10323-00, available from
Alpha Microsystems. This works even if port 0 is on an AM-314 or AM-318-10 board, which do
not support remote reset through port 0, as described above. See PDI-10323-00, Remote Reset
Adapter, for details.
Boot ID Configuration Switch
The boot ID switches are shown in the AM-137, AM-319(-00), and AM-319(-10) illustrations. Complete
information for configuring the boot switches can be found in Chapter 2 of the Eagle Series Computer
Owner’s Manual, DSO-00196-00, Rev. 03 or later.
The boot configuration on the AM-319(-20) board is programmable; therefore there are no boot ID
switches on the board. See the AM-319(-20) CMOS Setup section of the Eagle Series Computer Owner’s
Manual for a detailed explanation of the Super Eagle CMOS Configuration Menu.
Replacing the Time and Date Battery
When replacing the backup batteries always be sure to power-down the system first! DO NOT
replace batteries while the system is running!
The location of the backup battery that provides power to your time and date circuit is shown in the AM137, AM-319(-00), AM-319(-10) and AM-319(-20) illustrations. There are two types of battery
configurations, depending on board type:
AM-137, AM-319(-00) and AM-319(-10) Battery Replacement
Each board uses one three-volt lithium battery (part #BR2325) that will last for approximately two years.
To remove the existing battery, which is about the size of a quarter, you must slide it out from under the
top spring contact. It may be necessary to lift the top spring contact slightly to remove the battery from
the plastic well that holds it in place. Do not bend the spring arm, or you will lose the contact tension
and the battery backup will be intermittent.
When installing the new battery, make sure the positive (+) side is facing up and the top spring arm
contact is pressing down firmly to hold it in place.
After installing a new battery, log to OPR: and enter the current time and date. Reboot the system to
initialize system up time.
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 11
AM-319(-20) Battery Replacement
The AM-319(-20) board uses two three-volt lithium batteries (part #BR1225). The batteries are slightly
smaller than a dime, and are secured side-by-side in a plastic holder. When the batteries need
replacement, you must replace both batteries at the same time. Refer to the following steps and
illustration for battery replacement.
Use extreme care when replacing the batteries! The plastic holder can be easily broken if you
use excessive force!
1. Insert a small scribe or Xacto™ knife from the top, down through the square hole between the
right edge of the battery and the plastic holder’s top piece. (The right side is the side toward
resistor pack RN12).
2. Gently pry the right side of the battery so it slides to the left and pushes against the left side
spring contacts.
3. As you slide the battery to the left and it clears the plastic top hole, pry the right edge of the
battery upward and out through the hole in the top. The battery will typically “pop” up and out.
+
RN12
U80
+
RN12
U80
+
+
AM-319(-20) Backup Battery Removal
4. Inspect the battery contacts and be sure they are clean before installing the new batteries. Use
alcohol and a cotton swab to clean if necessary.
5. To install a new battery, insert the edge of the battery down through the square hole and under
the left side of the plastic top. Be sure to install the new batteries with the (+) positive side up.
6. Use your finger to slide the battery to the left and down, until the right edge of the battery slips
under the right side of the plastic top. Release the battery and it should spring to the right,
securing itself under the holder’s top piece.
DSS-10517-00, Rev. B01
Page 12
Eagle Series Computer Service Manual
The battery backup on the AM-319(-20) also maintains the boot routine data stored in its onboard CMOS chip. After you install the new batteries and boot the system, the front panel may
display a blinking “CE” for several seconds, indicating a CMOS checksum verification failure. If
this occurs, the boot routine will next display “CC” while testing the CMOS RAM to ensure it is
working properly. If the circuitry is working correctly the front panel will display “CS” and you
will have approximately 3 seconds to press ESC and access the CMOS configuration menu.
If your previously stored CMOS boot parameters have been lost and you do not access the
CMOS configuration menu to restore them, the system will drop into a standard default boot
routine looking first for a warm-boot streamer tape on SCSI device ID 3, and then for
AMOS32.MON and AMOS32.INI on SCSI disk drive 0.
For more details on setting up the CMOS Configuration Menu refer to the Eagle Series
Computer Owner’s Manual, DSO-00196-00, Rev. 03 or later.
Once the system is up and running, log to OPR: and enter the current time and date. Reboot the system to
initialize system up time.
SSD Chip and Boot PROM Handling
The type of socket used for boot PROM and SSD chips in your Eagle computer requires a special tool for
chip removal. See the illustration below for more information:
WARNING!
The SSD chip on the AM-137
and all AM-319 boards and
the boot PROM on
Roadrunner boards
require a specialized tool
for their removal. If you
try to remove the SSD
chip or boot PROM
using a screwdriver or
pocketknife, you could
easily damage both the
chip and the socket. This
type of chip extraction tool is
available at retail stores
specializing in electronic
components.
SSD and Boot PROM Removal
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 13
Roadrunner AM-172 Board Configuration
The illustration below shows the AM-172 board configured as shipped by Alpha Micro. The only userconfigurable jumpers on this board are the JP5 and JP6 memory configuration jumpers. These jumpers
only need to be reconfigured if you change the amount of memory installed in your computer. All other
jumpers on the board should be left in their factory-configured positions. All possible configurations for
the memory jumpers are shown in the illustration.
1
2
3
JP1
JP1 SET TO PINS 1 AND 2 = TERMPOWER DISABLED
JP1 SET TO PINS 2 AND 3 = TERMPOWER ENABLED (FACTORY DEFAULT)
1 2 3
JP2 SET TO PINS 1 AND 2 = SCSI BUS ACTIVE TERMINATION ENABLED (FACTORY DEFAULT)
JP2
JP2 SET TO PINS 2 AND 3 = SCSI BUS ACTIVE TERMINATION DISABLED
OSCILLATOR JUMPER (DO NOT REMOVE)
ALPHA
MICROSYSTEMS
JP2
JP1
J3
J1
J2
MEMORY SIMM CONNECTOR
JP3
N C R
50-PIN SCSI
CONNECTOR
JP4
BOOT PROM
X-BUS
CONNECTORS
J5
JP6
J6
PIN-1 INDICATOR
JP5
030
JP19
JP15
JP18
JP17
JP16
DWB-00172-00 REV. XXX
MEMORY CONFIGURATION
JUMPERS
OSCILLATOR JUMPERS
(DO NOT REMOVE)
TEST JUMPER
(DO NOT INSTALL)
4MB
8MB
16MB
32MB
JP6
JP6
JP6
JP6
JP5
JP5
JP5
JP5
X-BUS ACTIVE TERMINATION
TEST JUMPER (DO NOT INSTALL)
IN = ENABLED (FACTORY DEFAULT)
OUT = DISABLED
CACHE ENABLE / DISABLE JUMPER
IN = DISABLED
OUT = ENABLED (FACTORY DEFAULT)
INDICATES PIN-1
FOR ALL CONNECTORS
AM-172 Board Configuration
DSS-10517-00, Rev. B01
Page 14
Eagle Series Computer Service Manual
Roadrunner AM-174 Board Configuration
The illustration below shows the AM-174 board configured as shipped by Alpha Micro. The only userconfigurable jumpers on this board are the JP11, JP12, and JP13 memory configuration jumpers. These
jumpers only need to be reconfigured if you change the amount of memory installed in your computer.
All other jumpers on the board should be left in their factory-configured positions. All possible
configurations for the memory jumpers are shown in the illustration.
1
2
3
JP2
1
2
3
JP1
JP2 SET TO PINS 1 AND 2 = TERMPOWER DISABLED
JP2 SET TO PINS 2 AND 3 = TERMPOWER ENABLED (FACTORY DEFAULT)
JP1 SET TO PINS 1 AND 2 = SCSI BUS ACTIVE TERMINATION ENABLED (FACTORY DEFAULT)
JP1 SET TO PINS 2 AND 3 = SCSI BUS ACTIVE TERMINATION DISABLED
OSCILLATOR JUMPER (DO NOT REMOVE)
MEMORY SIMM CONNECTOR
JP2
J1
JP1
JP7
ALPHA
MICROSYSTEMS
J4
N C R
PIN-1 INDICATOR
JP6
50-PIN SCSI
CONNECTOR
X-BUS
CONNECTORS
BOOT PROM
040
JP10
JP17
JP15
JP14
JP16
JP13
J3
JP12 JP11
J2
JP9
ALPHA MICROSYSTEMS AM-174
FACTORY USE ONLY, NO JUMPERS INSTALLED
JP13
JP13
JP13
JP13
JP13
JP12 JP11
JP12 JP11
JP12 JP11
JP12 JP11
X-BUS ACTIVE TERMINATION
IN = ENABLED (FACTORY DEFAULT)
OUT = DISABLED
MEMORY CONFIGURATION JUMPERS
8MB
16MB 32MB 64MB
4MB
JP12 JP11
OSCILLATOR JUMPERS
(DO NOT REMOVE OR RECONFIGURE)
INDICATES PIN-1
FOR ALL CONNECTORS
AM-174 Board Configuration
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 15
ACCESSING YOUR ROADRUNNER BOARD
Where your Roadrunner board is located in your Eagle chassis depends on when you purchased your
computer. On early-model Eagle computers, the Roadrunner board is mounted vertically on a special
bracket as shown in the next two illustrations. Later model Eagle computers have their Roadrunner
boards mounted horizontally on the chassis bottom, as shown in the third illustration. The screen on the
bottom of the chassis has four threaded standoffs designed to the hold the Roadrunner board in place.
The Eagle 100 has the Roadrunner AM-172 “030” board circuitry incorporated into its AM-137
CPU board. To upgrade the Eagle 100 to a Roadrunner “040”, you will need an AM-987 upgrade
kit.
DW
F-2
0
DW or754-0
0
F-2
075
4-0
1
Your Roadrunner 030 or 040 board is mounted
on the DWF-20754-00 bracket shown above.
To access the board, remove these four
Phillips-head screws. You can then fold down
the mounting bracket and board assembly
onto your work surface.
Roadrunner Mounting Bracket (Early Models & Eagle 100 Upgrades)
DSS-10517-00, Rev. B01
Page 16
Eagle Series Computer Service Manual
ROADRUNNER 030 OR 040
BOARD
When upgrading or replacing your Roadrunner
board, you must first unplug the two cables from
the X-Bus connectors, the 50-pin SCSI cable,
and the 4-pin power cable. After unplugging the
cables, simply remove the four screws shown
above and you can remove the Roadrunner board
from the assembly.
Roadrunner Installation (Early Models & Eagle 100 Upgrades)
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 17
6-32 PHILLIPS-HEAD
SCREW
In this configuration, the Roadrunner board is
mounted on top of four standoffs which are
attached directly to the screen on the bottom
of the chassis.
Roadrunner Installation (Late Model Eagle Computers)
DSS-10517-00, Rev. B01
Page 18
Eagle Series Computer Service Manual
UPGRADING ROADRUNNER ON-BOARD MEMORY
The Roadrunner has one on-board SIMM (single inline memory module) expansion slot. SIMM memory
is available in five sizes: 4, 8, 16, 32, and 64 megabytes.
Installing Memory
Special care must be taken when installing a SIMM module. The illustration below shows how the curve
in the SIMM module must align with pin-1 on the SIMM connector.
Insert the SIMM into the connector at a slight angle. After you feel the SIMM module settle into the
connector, rotate the SIMM into an upright position. When the SIMM is properly positioned, the metal
retainer clips at each end of the connector will click into position, locking the SIMM in place.
Very little force is required to install a SIMM module. If you’re having problems getting the
SIMM module installed in the socket, stop and take a moment to examine both the SIMM
module and the socket. Make sure you are installing the SIMM as shown below.
Once the memory is installed, you must set the memory configuration jumpers based on the capacity of
the SIMM module. A table showing how these jumpers are configured is shown in AM-172, AM-174,
and AM-137 illustrations.
To remove a SIMM from its connector, simply press out on the metal retainer clips and gently tilt the top
of the SIMM module, so it is free of the metal retainer clips.
MAKE SURE THIS CURVE
IN THE SIMM CARD ALIGNS
WITH PIN-1 IN THE SIMM
CONNECTOR.
SIMM (SINGLE INLINE
MEMORY MODULE)
RETAINER
CLIP
RETAINER
CLIP
SIMM CONNECTOR
PIN-1 INDICATOR
Roadrunner SIMM Module Installation
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 19
PERIPHERAL MOUNTING
For information on the AM-990 chassis version, consult the AM-990 SBC Service Manual, part
number DSS-10524-00.
Your Eagle computer cabinet can hold six half-height peripherals or three full-height 5.25” peripherals.
Filler panels in the computer front panel can be removed to allow access to some of these peripherals. If
you have six half-height peripherals, four of them can be accessed through the front panel; if you have
three full-height peripherals, two of them can be accessed through the front panel.
3.5” diskette or hard disk drives mounted in 5.25” mounting brackets are also compatible with
your computer.
The following figure shows all six peripheral mounting positions in the Eagle chassis. For detailed
instructions on configuring a particular device, see the installation instructions shipped with that device.
A peripheral is installed in the drive mounting bracket using four Phillips-head screws. To install the
peripheral mounting screws, you need access to both sides of the peripheral mounting bracket. On one
side of the cabinet, all six of the mounting positions are easily accessible. However, on the other side of
the cabinet, the main electronics board and its mounting bracket block access to all but the top two
positions. To ease the installation process, Alpha Micro installs peripherals starting at the top position
and working down. If your computer includes one disk drive and one tape drive, the two peripherals will
be mounted in positions 1 and 2, which are easily accessible from both sides of the chassis.
To install peripherals in mounting positions 3, 4, 5, and 6, you need to remove the main electronics board
and its side mounting bracket from the chassis. At first glance, this might seem difficult, but if you
follow the procedure outlined below, it will make the task much easier.
There are two basic types of Eagle system rear panels: the Eagle 100-500 rear panel, and the Eagle 550
rear panel. The two types of rear panels require a different method of unfastening the main electronics
board. However, once the main electronics board is unfastened from the rear panel, all Eagle side
mounting brackets are removed in exactly the same manner.
DSS-10517-00, Rev. B01
Page 20
Eagle Series Computer Service Manual
These two half-height 5.25"
mounting positions support hard
disk drives. Peripherals mounted in
either of these locations cannot be
accessed via the computer's front
panel.
These four half-height 5.25"
mounting positions are designed
for peripherals that use
removeable media, like diskette
and tape drives. A peripheral
mounted in any of these four
positions is accessible through a
cutout in the computer's front
panel.
1
2
3
4
5
6
NOTE:
All six peripheral mounting positions will
accommodate 3.5" devices. However,
before you can mount a 3.5" device in the
chassis, the 3.5" device must first be
installed in a 5.25" mounting bracket.
Peripheral Mounting Positions
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 21
Eagle 100-500 Rear Panel Screws
Refer to the following steps and illustration to unfasten the main electronics board from the standard
Eagle rear panel.
1. Remove the five Phillips-head screws on the chassis rear panel where indicated in the
illustration. These five screws hold the rear panel adapter plate to the chassis. After removing
these screws, you can remove the main electronics board assembly without having to remove all
the serial I/O connectors from the rear panel.
2. Next, unplug the external SCSI termination plug and remove the two Phillips-head screws that
secure the SCSI connector to the rear panel. Then, push the SCSI connector back into the chassis
so it is no longer protruding through the rear panel.
3. On Eagle 100 systems, disconnect the 50-pin SCSI cable from the connector on the main
electronics board (the AM-137 CPU board).
110
REMOVE THE TWO SCREWS
HOLDING THE SCSI CONNECTOR
TO THE REAR PANEL
MAIN
ALT
BOOT
H1
SCSI
H2
ETHERNET
PARALLEL 0
PARALLEL 1
G1
G2
F1
F2
E1
E2
D1
D2
C1
C2
B1
B2
A1
A2
REMOVE THESE
FIVE REAR PANEL
SCREWS
Eagle 100-500 Rear Panel Screw Locations
DSS-10517-00, Rev. B01
Page 22
Eagle Series Computer Service Manual
Eagle 550 Rear Panel Screws
Refer to the following steps and illustration to unfasten the main electronics board from the “Super
Eagle” (Eagle 550) rear panel.
1. Remove the three Phillips-head screws where indicated in the illustration. The three screws hold
the AM-319(-20) I/O mounting bracket to the chassis rear panel.
2. Next, remove the threaded hex nut where indicated, to provide enough clearance to lift the AM319(-20) board up and out of the chassis bottom pan.
0
SCSI
1
PRINT PORT 3
115
PRINT PORT 2
PRINT PORT 1
PRINT PORT 0
A
B
C
D
E
F
G
TX RX LINK
AUI
10 base T
Remove these
screws to
unfasten the
AM-319(-20)
board from the
rear panel.
SERIAL PORTS
3
2
1
0
Eagle 550 Rear Panel Screw Locations
DSS-10517-00, Rev. B01
SIO EXPANSION BUS
UPS
Remove this hex nut
to provide enough
clearance to lift the
AM-319-20 board up
and out of the chassis.
Eagle Series Computer Service Manual
Page 23
Side Mounting Bracket Removal - All Eagles
Refer to the following steps and illustration to unfasten the main electronics board side mounting bracket
from the Eagle chassis. This procedure is exactly the same for both the standard and Super Eagle chassis.
1. Remove the two Phillips-head screws that secure the main electronics board’s side mounting
bracket to the chassis. Before you slide out the board and its mounting bracket, notice how the
board’s mounting bracket is positioned over the two alignment tabs on the bottom of the chassis.
When you reinstall the assembly, make sure the mounting bracket is properly positioned over
both tabs; if it’s not, it will be impossible to reinstall the two screws that hold the assembly in
place.
2. To remove the main electronics board and its mounting bracket, lift the bracket high enough to
clear the bottom lip on the chassis. Once you clear the bottom lip, pull the entire assembly out
just far enough to disconnect the two DC power connectors that extend between the power
supply and the main electronics board.
1
POWER SUPPLY
2
3
4
5
MAIN ELECTRONICS BOARD
MOUNTING BRACKET
6
To remove the board mounting
assembly, you must remove
these two screws.
Main Electronics Board Side Mounting Bracket Removal
DSS-10517-00, Rev. B01
Page 24
Eagle Series Computer Service Manual
3. There are a ribbon cable and a number of small wires extending between the front panel and the
display connector on the main electronics board. Do not disconnect any of these wires; they are
long enough to allow you to lay the main electronics board assembly on your work surface
without having to disconnect them.
4. With the main electronics board assembly out of the way, you can access both sides of the
peripheral mounting bracket and have complete access to all six mounting positions.
5. To install a peripheral, simply slide it into one of the available mounting positions in your
chassis and install the four screws (two on each side) that hold the device in place.
6. Don’t forget to attach the appropriate power and interface cables to your new peripheral.
7. After you have completed your peripheral installation, you can reinstall the main electronics
board assembly.
The main electronics board side mounting bracket is an integral part of the chassis assembly.
With the bracket removed, the chassis may shift slightly, either forward or backward. In order to
reinstall the main electronics board mounting assembly, you can realign the chassis by placing
one hand on the top of the chassis and applying pressure either forward or backward. With the
chassis properly aligned, the board and its mounting assembly will slide into place.
X-Bus Cable Routing
When unfastening the main electronics board side mounting bracket, the X-Bus cables should be long
enough to allow you to lay the board assembly down flat on the side of the chassis and out of the way.
If, however, an X-Bus cable should come unplugged from either the AM-319 board or the Roadrunner
board, it is extremely important that the cables are plugged back in correctly. If the cables are not correct
the system will not boot or run self-test and the Roadrunner board could be seriously damaged!
If necessary, refer to the following cabling diagram for the correct orientation of the X-Bus cable
connections.
The top two diagrams show connections for Rev. C00 and later AM-319-00 boards. On earlier
versions of the boards, while the cables connected to the same physical locations, the labels on
the board were reversed.
DSS-10517-00, Rev. B01
Eagle Series Computer Service Manual
Page 25
DWB-00319-00 TO DWB-00172-00 X-BUS CABLING
(for Rev. C00 and later of DWB-00319-00; for earlier revisions connect J5 to J5 and J6 to J6!)
AM-319
A/D J5
J5 C/S
C/S J6
J6 A/D
AM-172
DWB-00319-00 TO DWB-00174-00 AND -02 X-BUS CABLING
(for Rev. C00 and later of DWB-00319-00; for earlier revisions connect J5 to J3 and J6 to J2!)
AM-319
A/D J5
J2 A/D
C/S J6
J3 C/S
AM-174-XX
DWB-00319-10 TO DWB-00172-00 X-BUS CABLING
A/D J8
J5 C/S
C/S J9
J6 A/D
AM-319-10
AM-172
DWB-00319-10 TO DWB-00174-00 AND -02 X-BUS CABLING
A/D J8
J2 A/D
C/S J9
J3 C/S
AM-319-10
AM-174-XX
DWB-00319-20 TO DWB-00174-00 AND -02 X-BUS CABLING
A/D P7
J2 A/D
C/S P8
J3 C/S
AM-319-20
AM-174-XX
X-Bus Cable Routing
DSS-10517-00, Rev. B01