IBM Academic System 6152 User manual

First Edition (January 1988)
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION
"AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of
express or implied warranties in certain transactions, therefore, this statement may not
apply to you.
This publication could include technical inaccuracies
or typographical errors. Changes
are periodically made to the information herein; these changes will be incorporated in
new
editions of the publication. IBM may make improvements and/or changes in the
product(s) and/or the program(s) described in this publication at any time.
It is possible that this publication may contain reference to, or information about. IBM
products (machines and programs). programming, or services that are not announced
in
your country. Such references or information must not be construed to mean that
IBM intends to announce such IBM products, programming, or services in your country.
Requests
for copies of this publication and for technical information about IBM
products should be made to your IBM Marketing Representative.
Academic System is a
trademark of the International Business Machines Corporation,
© Copyright International Business Machines Corporation 1988. All rights reserved.

The following information should be recorded and retained:
IBM Product Name
IBM Model Number
IBM Serial Number
IBM Key Number
• The product name is on the front of the cabinet.
• The model number of this product is located on the outside of the
cabinet on the tag that states in part:
"Type" or
"Model."
• The serial number of this product is located on the outside of the
cabinet and has a prefix of SIN.
• The serial number for the keys is located on the tag attached to
the keys. Additional keys may
be ordered from the address listed
on the key tag.
iii

Iv

Electrical Safety Electrical
current from power, telephone,
and communications cables is hazardous.
Connect and disconnect cables as shown
when installing, moving,
or opening the
covers of this product
or attached devices.
Turn Everything OFF.
~ . ».
~O
~ .
Then Outlets.
..
~
Outlets First,
Then
..
~
..
v

The following statement applies to this IBM product. The statement for other IBM
products intended for use with this product will appear in their accompanying
materials.
Federal Communications Commis~ion (FCC) Statement
Warning:
This equipment generates, uses, and can radiate radio
frequency
energy and if not installed and used in accordance with the
instruction manual, may cause interference to radio communications.
It has been tested and found to comply with the limits for a Class A
computing device, pursuant to Subpart J
of Part 15 of FCC rules,
which
are designed to provide reasonable protection against such
interference when operated in a
commercial environment. Operation
of
this equipment in a residential area is likely to cause interference,
in which case the user at
his/her own expense will be required to
take
whatever measures may be required to correct the interference.
Instructions to User: Ifthis equipment does cause interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is
encouraged to try to correct the interference by one or more of the following
measures:
• Reorient the receiving antenna.
• Relocate the computer with respect to the receiver.
• Move the computer away from the receiver.
• Plug the computer into a different outlet so that computer and receiver
are on different branch circuits.
Properly shielded and grounded cables and connectors must be used for connection to
the system host in order to meet FCC emission limits. Proper IBM cables are available
from authorized dealers. IBM is not responsible for any radio or television interference
caused by using other than the recommended cables or by unauthorized modifications
to this equipment. It is the responsibility of the user to correct such interference.
If necessary, the user should consult the dealer or an experienced radio/television
technician for additional suggestions. The user may find the following booklet
prepared by the FCC helpful:
How to Identify and Resolve Radio- TV Interference Problems
This booklet is available from the following:
FOB Public Contact Branch
Room 725
1919 M St. NW
Washington, DC 20554
Tele. [phone]
CAUTION
Consumer Assistance and Small Business Division
Room 254
1919 M St. NW
Washington, DC_20554
Tele. [phone]
This product is equipped with a 3-wire power cord and plug for the
user's safety. Use this power cord in conjunction with a properly
grounded electrical outlet to avoid electrical shock.
vi

Related Publications
The following publications contain further information about the IBM
Academic System
6152:
• IBM Personal Systeml2 8550/8560 Hardware Maintenance
Service
• IBM Personal Systeml2 8550/8560 Hardware Maintenance
Reference
• IBM Academic System 6152 Hardware Maintenance Service
Supplement
• IBM Academic System 6152 Hardware Maintenance Reference
Supplement
• IBM Academic System 6152 Technical Reference
• IBM Personal Systeml2 8550/8560 Technical Reference
• Academic Operating System 4.3 for the IBM Academic System
6152
• Program Directory -IBM Academic Operating System 4.3.
vii

viii

Contents
Introducing the IBM Academic System 6152
Description 2
Getting Started 4 o
Identifying the Computer Features 6
What Happens When the Computer Starts?
10
What Is the Reference Diskette? 12
Setting Passwords 15
Installing IBM Opllons 19
How to Install an Option 20
System Unit Cover 21
Adapter 24
Drives 27
Installing a Math Coprocessor 38
Removing and Installing the Battery 39
Solving Computer Problems 41
How to Start Testing 42
Troubleshooting Charts 43
What If Testing Cannot Find the Problem? 45
How to Get Service 48
Appendix A: Additional Information 49
Ordering Additional Cover Lock Keys 49
Diskette Drives and Diskettes 49
Write-Protecting Diskettes 51
Moving the Computer 52
What Is IBM Cassette BASIC? 54
IBM Power Cords 55
Index 57
Ix

x

Introducing the IBM Academic
System 6152
The IBM Academic System 6152 is a high-performance floor standing
computer. The computer consists of a keyboard and system unit,
which is used with any of several available displays. The system unit
has several built-in connectors so that you can add options easily.
An option is an accessory piece of hardware that can be attached to
or installed inside the system unit to expand the capabilities of the
computer. Many options are available to meet your presen
t- and
future needs.
This section contains:
Description 2
Getting Started 4
Identifying the Computer Features 6
What Happens When the Computer Starts?
10
What Do the Diskette and F1 Prompts Mean? 11
What Does the Password Prompt Mean? 11
What Is the Reference Diskette? 12
How to Start the Reference Diskette 14
Setting Passwords 15
Introducina the IBM Academic System 6152 1

Description
The IBM Academic System 6152 consists of an IBM Personal
Systeml2™ Type 8560 with these additional features:
• RISC Adapter Card. The RISC Adapter Card is a processor
adapter card that
is installed in all IBM Academic System 6152
models. The RISC Adapter Card includes ROMP-C, the memory
management unit (MMU) chip, a Floating Point Accelerator, and
up to 8Mb of memory.
• Fixed disk drive adapter1 and RISC Adapter Card memory in one
of the
following configurations:
One 20Mb fixed disk drive with 2 or 4Mb memory
-One 44Mb fixed disk drive with 4 or 8Mb memory
-One 70Mb fixed disk drive with 4 or 8Mb memory.
• One of the following local area network (LAN) adapters:
-Ethernet2 NICps/23
Adapter
-Token-Ring Network Adapterl A.
• IBM Monochrome Display 8604 (optional).
• Optional second 44Mb fixed
disk drive.
• Optional second 70Mb fixed disk drive.
• IBM Display Adapter 8514/A (required for IBM 8604).
TM Personal System/2 is a trademark of the International Business Machines
Corporation.
1 The 70Mb fixed disk drive uses the ESDI fixed disk drive adapter.
2 Trademark of Xerox Corporation
3 Trademark of Ungermann-Bass, Inc.
2 IntrodUCing the IBM Academic System 6152

The following is a list of components of the IBM 6152 base system
(not mentioned above):
• Power supply
Automatically switches to support 100-125 or 200-240 Vac, 50
or 60 Hz
207 watts or 225 watts
• System board
80286 Microprocessor - 10 MHz clock
80287 Math Coprocessor connector
Video Graphics
Array (VGA)
Eight expansion slots, including one occupied by the fixed
disk drive adapter, one by the LAN adapter, and two by the
RISC Adapter Card
Diskette
drive controller
Parallel port
Serial port
Display connector
Keyboard connector
Pointing device connector
1
Mb Random Access Memory (RAM)
Complementary Metal Oxide Semiconductor Random Access
Memory (CMOS RAM)
• Battery (to keep CMOS RAM active when power is off)
• Speaker
• 1.44Mb 3.5-inch diskette drive(s), one
or two
• Cover lock
• 101-key keyboard.
Introducing the IBM Academic System 6152 3

Getting Started
1. Unpack and set up the system unit, display, and keyboard.
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Follow the instructions on the
Setup Sheet.
2. Install any internal and external options.
o~
Use the instructions supplied
with the option along with the
"Installing IBM Options" section
in this manual. Some examples
of options are communications
adapters, additional memory,
and printers.
3. Record the system unit and key serial numbers.
Write the information on page iii
in this manual.
4 Introducing the IBM Academic System 6152

4. Lock the system unit cover to help protect the devices and
options inside. Store the keys in a safe place.
Use a
cover lock key. The
location of the
cover lock is
described
on pages 6 and 7.
5. Start and review the IBM Academic System 6152 Reference
Diskette (hereafter called Reference Diskette).
Use this diskette as a starting
point to acquaint
yourself with
the features of the computer.
After
reviewing the diskette, be
sure to set the date and
time and
make a backup copy of the
diskette.
6. Install your operating system and application programs.
Follow the
instructions that come
with their manuals and diskettes.
Introducing the IBM Academic System 6152 5

Identifying the Computer Features
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6 Introducing the IBM Academic System 6152

D Keyboard is used to enter information into the computer. The
keyboard cable connects the keyboard to the system unit.
II System Unit is the main part of the computer. It contains the
microprocessors, memory, and drives.
II Cover Lock, if locked, helps protect the devices and options
inside the system unit.
II Power-Good Light comes on when the system unit is turned on.
D Fixed Disk Drive In-Use Light comes on when a drive is reading
data from
or writi ng data to a fixed disk.
II Power Switch turns the system unit on and off.
o Serial Number is the system unit's unique identification number.
You should record this
number on page iii in this manual.
II DiskeHe Drive In-Use Light comes on when the drive is reading
data from
or writing data to a diskette.
D DiskeHe Drive A is the primary diskette drive. To start a
program that is on a diskette, you usually insert the diskette into
this drive. For
information about using diskettes, see page 51.
m DiskeHe Eject BuHon releases a diskette from the drive. "1.44"
is printed on the button to indicate that it is a 1.44Mb diskette
drive (see page 51 for more information).
m DiskeHe Drive B (optional) is the secondary diskette drive.
m System Unit Feet stabilize the system unit.
Introducing the IBM Academic System 6152 7

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8 IntrOducing the IBM Academic System 6152

o Keyboard Feet adjust the angle of the keyboard.
fI Carrying Handle is provided for lifting the system unit. The
system unit weighs more than 18kg
(40 Ib). It is recommended
that two people lift it.
II Power Cord Connector is where the system unit power cord
plugs in.
a Hand Slots are on both sides of the system unit. They are
provided to help slide the system unit across the floor.
g Keyboard Connector is where the keyboard cable plugs in. A
keyboard icon is embossed above the keyboard connector for
easy identification.
II Mouse or Pointing Device Connector is where a mouse or other
pointing device cable plugs in.
II Parallel Connector is where a printer signal cable usually plugs
in.
£] Serial Connector is where a modem or serial printer signal
cable usually plugs in.
II Display Connector is where a display signal cable usually plugs
in. However, some displays require their signal cable to be
plugged into
an adapter that is installed in an expansion slot.
The correct connection depends upon the type of display you
have. Contact
your IBM Marketing Representative if you are
uncertain.
1m Expansion Slots allow the installation of adapters inside the
system unit so you can expand the
capabilities of the computer.
The slots are numbered 1 through 8 and correspond with the
slot numbers listed in the configuration. A fixed disk
drive
adapter is installed in slot 8, the RISC Adapter Card in slot 4
(and also takes up slot 5), and the LAN adapter in another open
slot. The IBM Display Adapter 8514/A (optional) must be
installed in slot 6 (the extended slot).
For information about the configuration, see page
12.
Introducing the IBM Academic System 6152 9