Download AM-990 VME Service Manual

RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
For Authorized
Service Personnel Only:
AM-990 VME Service
Manual
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
RIGHT. FROM THE START
DSS-10523-00,Rev.A00
FIRST EDITION:
June 1994
 ALPHA MICROSYSTEMS
To re-order this document, request part number DSS-10523-00
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 depasse 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’opérateur 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 remplacement 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.
Replace battery with Panasonic battery BR2325 only. Use of another battery 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 boîtier. L’alimentation de cet ordinateur
peut produire des nivaeux de tensions dangereux, le boîtier ne devrait donc être ouvert que par un technician autorisé.
Electrical Warning
This equipment contains components that can be damaged by static electricity. Follow all electronic discharge precautions when
handling the equipment. For example, touch the metal back panel of the CPU or peripheral chassis to dissipate any electrical
charge before touching the circuit boards or equipment within the chassis. After turning off power, before you open your computer
chassis, unplug the cord from the electrical outlet to guard against electrical shock.
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 I.D. 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 S. Fairview Street
P.O. Box 25059
Santa Ana, CA 92799
AM-990 VME Computer Service Manual
Page i
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
ACCESSING YOUR COMPUTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Opening the Front Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Opening the Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Opening the Side Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Equipment Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Your Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reinstalling the Top Cover and Side Panel . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
2
2
4
5
6
INSTALLING PERIPHERALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Plastic Mounting Rails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Additional Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
UPGRADING TO A UNIVERSAL ENCLOSURE VME COMPUTER . . . . . . . . . . . .
Preparing Your Work Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the CPU and VME Expansion Boards from Your Old Chassis . . .
Installing the CPU and VME Expansion Boards . . . . . . . . . . . . . . . . . . . . . .
Removing and Installing Peripheral Devices . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the I/O Rear Panel and Paddle Board Assembly . . . . . . . . . . . . . .
9
10
10
10
12
12
FINISHING THE JOB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DSS-10523-00, Rev. A00
AM-990 VME Computer Service Manual
Page 1
1.0INTRODUCTION
This document contains instructions which are intended only for authorized service
personnel. The AM-990 computer contains a high-output power supply, which produces
current levels high enough to make it unsafe for unauthorized persons to perform work
inside the chassis.
The following procedures are discussed:
Accessing your computer.
Electronic equipment handling precautions.
Peripheral installation.
AM-990 upgrade instructions.
2.0ACCESSING YOUR COMPUTER
When adding additional equipment or servicing your computer, it will be necessary to
gain access to the components inside the computer. The following sections include
instructions on opening the computer’s front door, removing the the computer’s top
cover, and removing the computer’s side panel.
Your computer operates at hazardous voltages. Before you attempt service components
inside the computer, observe the following precautions:
Turn off the computer power switch.
Unplug the AC power cord.
Remove any jewelry from your hands, wrists, and neck.
Use only insulated or nonconductive tools.
2.1Opening the Front Door
The factory ships your computer with the door locked. The keys are tiewrapped to your
computer’s rear panel, near the power switch. Insert the key, open the lock, and the
door will swing open.
DSS-10523-00, Rev. A00
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AM-990 VME Computer Service Manual
2.2Opening the Top Cover
In order to remove the side panel, you must first remove the computer’s top cover. The
procedure for removing the top cover is as follows:
1.Swing the front door open to expose the screws that hold the top cover in place.
2.Using a phillips-head screwdriver, remove the two screws that connect the top
cover to the chassis as shown in the illustration.
3.Don’t worry about the display panel, it is not attached to the top cover. However,
make sure the key for the security lock is not inserted in the lock when you
attempt to remove the top cover.
4.The top cover is held in place with four locking tabs, one at each corner. In order
to release the locking tabs, the top cover must be slid forward as indicated by the
arrow. The best way to do this is to use the palm of your hand to firmly strike the
rear corners of the top cover. This will cause the top cover to slide forward.
To protect your hand, place some type of padding over the rear corners of the top
cover.
5.Once the top cover slides forward, pull straight up to remove it.
6.Place the top cover out of the way so it will not get damaged. Make sure you do
not bend the locking tabs.
2.3Opening the Side Door
To install optional boards, disk drives, backup devices, or to service the computer, you’ll
need to remove the left side panel as shown in the illustration on the following page:
1.Remove the four screws that secure the left side panel to the chassis.
2.Like the top cover, the left side panel must be slid forward in order to be removed.
3.Using the palm of your hand, firmly strike the rear edge of the side panel as
indicated by the arrow.
4.Once the panel slides forward, it can be removed by lifting straight up.
5.As with the top cover, make sure none of the alignment tabs on the side panel get
damaged.
DSS-10523-00, Rev. A00
AM-990 VME Computer Service Manual
Page 3
LOCKING TABS
ER
V
TOP CO
LE
FT
SI
DE
PA
N
MAC4 4 2
EL
TO REMOVE THE TOP COVER,
REMOVE THESE TWO SCREWS.
TO REMOVE THE SIDE PANEL,
REMOVE THESE FOUR SCREWS.
Removable Top Cover and Side Panel
DSS-10523-00, Rev. A00
Page 4
AM-990 VME Computer Service Manual
2.4Electronic Equipment Handling Precautions
With the AC power cord unplugged and the sheet metal 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. Prior to 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.
MC1012
Static Protection Wrist Strap
DSS-10523-00, Rev. A00
AM-990 VME Computer Service Manual
Page 5
2.5Inside Your Computer
Once you have removed the side panel, you will be able to gain access to the
equipment inside your computer. The illustration below shows the location of the basic
components that make up your computer:
POWER SUPPLY
TOP ACCESS TO OPTIONAL
AUXILIARY I/O PANEL
PERIPHERAL MOUNTING
AREA
J2
P2
J17
J02
J18
J01
U122
P1
J3
CPU
J20
COOLING FANS
TYPICAL SYSTEM
CPU BOARD
REAR PANEL ACCESS
TO EXPANSION CARDS
6 OR 10 SLOT MOTHERBOARD
EXPANSION BOARDS
(Memory, I/O, Network, Intelligent Controllers, etc...)
Inside the Computer (Side View)
DSS-10523-00, Rev. A00
MAC5 2 9
Page 6
AM-990 VME Computer Service Manual
2.6Reinstalling the Top Cover and Side Panel
If you removed the top cover and side panel as described in the two previous sections,
you probably noticed the panels are a snug fit. The snug fit helps the computer meet
FCC requirements.
Use the following instructions when reinstalling the side panel and top cover:
Side Panel
1.Install the side panel before you install the top cover. The side panel has twelve
small tabs and four screws that hold it in place. To remove the panel, you pushed
it toward the front of the computer, creating about a 1/2" gap between the front lip
of the side panel with the four screw holes and the threaded holes in the cabinet.
2.To reinstall the panel, hang the side panel in the forward position and press down
on the panel, making sure both the top and bottom tabs slide into position.
3.At this point the panel should be in position vertically, but with a 1/2" gap between
the front lip of the side panel with the four screw holes and the threaded holes in
the cabinet.
4.Using the palm of your hand, firmly strike the front edge of the side panel; this will
cause the side panel to slide back into its proper mounting position.
5.Reinstall the four screws.
Top Cover
1.When setting the top cover in position, make sure each tab is aligned with a
corresponding slot on the top of the cabinet. Press the top cover down into
position.
2.Make sure each of the tabs is fully inserted, with the top cover sitting flush on top
of the cabinet.
3.Like the side panel, there will be a gap of about a 1/2" between the front lip of the
top cover with the two screw holes and the threaded holes on the front of the
computer cabinet.
4.Each corner of the top cover has a notched tab designed to hold the cover in its
mounting position. Use the palm of your hand to push the top cover back into
position, which will close the gap between the front lip of the top cover and the
threaded holes in the cabinet.
5.Install the two screws that secure the top cover to the computer cabinet.
DSS-10523-00, Rev. A00
AM-990 VME Computer Service Manual
Page 7
3.0INSTALLING PERIPHERALS
Mounting peripheral devices in your computer is simply a matter of attaching plastic rails
to the side of the peripheral and sliding the device into its mounting position. The 6-slot
chassis has mounting locations for 12 half-height (or six full-height) 5-1/4" peripherals.
The 10-slot chassis has mounting locations for 24 half-height (or 12 full-height) 5-1/4"
peripherals. The front door on both the 6 and 10-slot computers has a cutout which
allows access to peripheral devices using removable media. This cutout will
accommodate up to four 5-1/4" half-height peripherals.
The following illustration shows the peripheral mounting area for your computer with the
slots numbered 1 through 12. Note that the 10-slot chassis has two vertical rows of
peripheral mounting slots.
PERIPHERAL MOUNTING
AREA
1
2
3
J20
4
6
U122
P1
J3
CPU
5
7
J18
J01
8
J2
P2
10
J17
J02
9
11
12
MAC5 3 5
TYPICAL SYSTEM
CPU BOARD
Peripheral Mounting Area
DSS-10523-00, Rev. A00
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AM-990 VME Computer Service Manual
Slots 3, 4, 5, and 6 are used for installing peripherals that will be accessed through the
opening in the computer door. This includes devices like floppy disk drives and
magnetic tape drives that use removable media.
The first hard disk drive is mounted in slot 12, or slots 11 and 12 if it is a full-height
device. A second hard disk drive would be mounted in the next available slot above the
first disk drive. The hard disk drives are mounted in the lower part of the chassis for two
reasons: to make sure the weight in the chassis is properly distributed and to provide
easy access for both power and interface cables.
3.1Plastic Mounting Rails
The plastic mounting rails are the key to installing peripheral devices in your computer.
Two rails are required to mount a peripheral device. The rails (DWF-20652-00) are
universal; they can be mounted on either the right or left hand side of the peripheral.
The illustration showing the rail explains how it is installed on various types of
peripherals:
PERIPHERAL MOUNTING RAIL
DWF-20652-00
LONG
END
SHORT
END
Use the top holes for mounting
full-height devices.
Use the bottom holes for
mounting half-height devices.
SHORT END
For Tandberg 1/4" streaming tape drives and all hard disk drives, mount the rails
with the short end pointing toward the rear of the computer cabinet.
LONG END
For Exabyte 8mm drives, floppy drives, and other drives (except Tandberg)
with removable media, mount the rails with the long end pointing toward the
rear of the computer cabinet.
MAC4 7 0
Peripheral Mounting Rail
Besides the rails, the peripheral mounting kit includes both standard and metric screws
for compatibility with all of Alpha Micro’s 51/4" peripherals.
DSS-10523-00, Rev. A00
AM-990 VME Computer Service Manual
Page 9
DWF-20652-00
MOUNTING RAIL
HALF-HIGH 5-1/4"
PERIPHERAL
MAC4 7 1
Attaching Mounting Rails to Peripheral
3.2Additional Documentation
Each peripheral device sold by Alpha Micro is shipped with its own set of installation
instructions. The installation instructions include information on jumper settings,
termination, and cabling. Before installing a peripheral, make sure you read the
documentation shipped with the device.
4.0UPGRADING TO A UNIVERSAL ENCLOSURE VME COMPUTER
The instructions in this section describe upgrading from an earlier 6 or 10-slot VME
computer to a 10-slot AM-990 Universal Enclosure VME Computer.
The upgrade kit includes a completely assembled 10-slot universal VME chassis and
several different types of rear panel CPU board mounting brackets, designed to
accommodate AM-180, AM-185, AM-185(-50), and AM-190 CPU boards.
The basic steps for performing the upgrade are as follows:
Preparing your work area.
Removing your CPU and VME expansion boards from your old computer.
Configuring the VME motherboard in your new chassis.
Installing your CPU and VME expansion boards in the new chassis.
DSS-10523-00, Rev. A00
Page 10
AM-990 VME Computer Service Manual
Removing your peripherals from your old chassis.
Installing the peripherals in the new chassis.
4.1Preparing Your Work Area
Before starting the upgrade, make sure your work area has the proper anti-static
safeguards.
Place the new an old chassis side by side. Make sure the power switches are off, but
each unit should have its AC power cord unplugged. To transfer equipment from your
old chassis to the new chassis, you will need a #2 phillips-head screwdriver and 3/16"
hex-nut driver.
4.2Removing the CPU and VME Expansion Boards from Your Old Chassis
Paddle Cards
The first thing you want to do is remove all the terminal and other types of I/O cables
attached to the rear panel of your old computer. Next, remove the four screws that hold
the new computer’s I/O rear panel in place. Then, transfer all the rear panel paddle
cards from your old chassis over to the new computer’s I/O rear panel bracket. Each
paddle card is held in place with three screws. Once all the paddle cards are secured to
the new computer’s I/O rear panel bracket, set the rear panel bracket and paddle card
assembly aside until later on in the procedure.
CPU and VME Expansion Boards
Remove the two screws that hold your CPU board in place in your old chassis and the
slide the CPU board out. Before removing the VME expansion boards, mark the order in
which they are installed in your old chassis. Remove all of your VME expansion boards.
4.3Installing the CPU and VME Expansion Boards
CPU Board
Before you can install your CPU board, you must use a hex-wrench to remove the CPU
mounting bracket from the CPU board. The installation kit includes a new CPU
mounting bracket designed for your type of CPU board:
CPU mounting bracket DWF-20257-00 is for AM-180 CPU boards.
CPU mounting bracket DWF-20257-01 is for AM-185 CPU boards.
DSS-10523-00, Rev. A00
AM-990 VME Computer Service Manual
Page 11
CPU mounting bracket DWF-20257-02 is for AM-185(-50) CPU boards.
CPU mounting bracket DWF-20257-03 is for AM-190 CPU boards.
Install the appropriate bracket onto your CPU board. Once the bracket is installed, slide
the CPU board into its position in the new chassis.
VME Expansion Boards
Since you have your new and old chassis side by side, you should have a clear view of
the VME motherboard in each chassis. Before you install your VME expansion boards,
configure the IACK and BUS GRANT jumpers in the new chassis exactly as they are
configured in your old chassis. The P1 side of the motherboard has both IACK and BUS
GRANT (BG) jumpers, while the P2 side has only IACK jumpers.
P1 SIDE
P2 SIDE
IACK
J1-6
BG
J2-6
IACK
0 1 2 3
IACK
J1-5
BG
J2-5
IACK
0 1 2 3
IACK
J1-4
J2-4
MAC3 7 3
VME Motherboard
Once you have properly set the motherboard jumpers, install all of your VME expansion
boards in the new chassis.
DSS-10523-00, Rev. A00
Page 12
AM-990 VME Computer Service Manual
4.4Removing and Installing Peripheral Devices
Remove all of the 5-1/4" and 3-1/2" peripheral devices from your old chassis. Install the
peripheral devices in your new chassis using the instructions in this document.
4.5Installing the I/O Rear Panel and Paddle Board Assembly
You have already attached your paddle boards to the rear panel mounting bracket
designed for the new chassis. This assembly installs in exactly the same way as it did in
your old chassis. The bracket is held in place with four screws. Attach the cables that
connect between the paddle boards and the AM-350, AM-520, AM-362, etc...All these
cable connections will be exactly the same as in your old computer.
5.0FINISHING THE JOB
Once all the equipment is installed in the new chassis, you should make sure all the
interface cables are routed properly so they are not damaged when you reinstall the
computer’s top cover and side panel.
The only thing left to do is to position the computer in its intended operating position;
plug in all terminal and other types of I/O cables into the computer’s rear panel; and the
installation is complete.
DSS-10523-00, Rev. A00