Control Data Corporation CDC 40003-203 Owner's manual

I':J c:\ CONTR.OL DATA
\!:I r:J CORPO~TlON
CDC(!) 40003-203/204/205/206
PLATO<!Fl.EXIBLE DISK SUBSYSTEM
ANo
40003-200
16K RAM EXPANSION
HARDWARE' MAINTENANCE MANUAL
(S'ITE AND SUPPORT INFORMATION)
6Z949l00

REVISI,ON
01
(08-13-80)
A
(10-03-80)
B-Interim
(12-17-80)
C
(01-23-81)
D
(03-02-81 )
Publication No.
62949100
REVISION RECORD
DESCRIPTION
Preliminary release.
Final release. Includes changes per ECOs 14165,
14190, 14199, 14203, 14238, 14246, 14258, 14317,
14323, and 14328.
Manual revised to incorporate. ECO 14376.
Manual revised to incorporate ECO's 14469, 14468,
14454,
~4391, 14329, 14321, and 14279. Incorporates
ECO 14376 (B-Interim) in its final form & makes
technical corrections/changes.
Manual revised to incorporate ECOs 14514 and 14571.
01989-2
Address comments conc:em.ing this
manual to:
REVISJON LETTERS I, 0, Q AND X AlE NOT USED
Control Data Corporation
Technical Pub! ications Department~\
2401 North Fairview Avenue (\....,/
St. Paul, Minnesota 55113 ./
r'"
or use Comment Sheet in the back I
"-."..,
of this manual. ' ./
© 1980, 1981
by Control Data Corporation
Printed in the United States of America
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MANUAL TO EQUIPMENT LEVEL CORRELATJ.ON SHEET
This manual reflects the equipment configurations listed be/ow.
EXPLANATION: Locate the equipment type and series number, as shown an the equipment FCO log, in the list below.
Immediately to the right of the series number is an FCO number. If that number and all of the numbers underneath
. it match all of the numbers on the equipment FCO 10i, then this manual accurately reflects tile equipment.
EQUIPMENT TYPE
SERIES
WITH FCD'S
COMMENTS
FA501-A 01 ECQ's
14165 14328, 14376,
14454
02 14468
03 14571
04
FA501-B 01 ECQ's
14165, 14328, 14376, 14454
02 14468
03 14571
04
BR810-A 01
14165, 14328
01 14468
only
02
BR810-B 01
14165, 14328
01
14468 only
02
XA243-A
01
FT116-A 01
01987
62949100 D
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LIST OF EFFECTIVE PAGES
New features, as well as changes, deletions, and additions to information in this manual are indicated by bars
in the margins or by a dot near the page number if the entire page is affected. A bar by the page number
indicates pagination rather than content has changed.
PAGE REV
PAGE
REV
PAGE REV
Cover
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4-14/4-15
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7-11
thru
7-20
C
Title
Page
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5-1
A 7-21
thru
7-24 D
ii
thru vi
D
5-2 thru 5-17
B 7-25
thru
7-28 A
vii A 5-18
thru 5-22
A
7-29/7-30
D
viii C
6-1
thru 6-4 A
7-31/7-32
A
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thru 7-38
D
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C
xi A 6-7
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7-4S.4
D
xii
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C
xiii
and
xiv C 6A-1-6A-2
A
7-52/7-53
A
1-1
A 6A-3 C
8-1
A
1-2/1-3
C 6A-4 A Comment
Sheet
D
2-1/2-2
A 6A-5 C
Mailer
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2-3
C 6A-6 A
Back Cover
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2-4
A
6A-7/6A-S
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3-1
C 6B-l
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thru 6B-4 A
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PREFACE
This manual provides information to aid in the installation,
checkout, and maintenance of the CDC® PLATO® Flexible Disk
Subsystem. Information is provided for both on-site and tech-
nical support use. The subsystem provides flexible disk storage
capability to a PLATO Information Systems Terminal (IST-II and
IST-III).
Product and equipment number correlation for the various
subsystem configurations and associated memory options is as
follows:
Product Number
40003-203
40003-204
Equipment Number
FA501-A
BRS10-A
Description
PLATO Master Flexible Disk
Subsystem, 60 Hz, 120 Vac.
PLATO Slave Flexible Disk
Drive, 60 Hz, 120 V ac.
40003-205 FA501-B
PLATO Master Flexible Disk
Subsystem, 50 Hz, 220/240 V ac.
40003-206
40003-20.0
40003-211
BRS10-B
XA243-A
FTl16-A
PLATO Slave Flexible Disk
Drive, 50 Hz, 220/240 V ac.
Additional 16K by 8-bit RAM
Option (up to three RAM
options may be added).
Terminator assembly for IST
parallel I/O channel.
Organization of this manual is divided into eight major sections:
Section 1 - General Description
Section 2 - Operation
Section 3 - Installation and Checkout
Section 4 - Theory of Operation
Section 5 - Diagrams
Section 6 - Maintenance
Section 7 - Parts Data
Section 8 - Wire Lists
62949100
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Other manuals providing reference and operator information on
the flexible disk subsystem, maintenance information on the
flexible disk drive assembly, and maintenance information on the
1ST terminal are listed as follows. All manuals may be ordered
from:
Control Data Corporation
Literature and Distribution Services
304 North Dale Street
St. Paul, Minnesota 55103
Title
Publication Number
PLATO Flexible Disk Subsystem
Hardware Operators Guide
9406 Flexible Disk Drive Assembly
Hardware Maintenance Manual
Information Systems Terminal II
Hardware Maintenance Manual (1ST-II)
Information Systems Terminal III
Hardware Maintenance Manual (1ST-III)
62940005
77614903
82100083
62940007
In addition to these publications, an instructional flexible
disk and user's installation guide are available as follows:
Micro Plato Instructional Flexible Disk 76773000
Micro Plato User's Installation Guide
76368339
The disk and the guide may be ordered, using an Education Order
Form, from:
viii
Order Administrator
Education Company
8100 34th Avenue South
P.O. Box 0
Minneapolis, Minnesota 55440
62949100 C
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Disks for general use (formatted or unformatted) may be ordered
by phoning as follows:
in Minnesota, Alaska, or Hawaii 612-830-7352 (call collect)
in other parts of United States 800-328-6207 (toll-free)
in Canada 416-291-7151 (call collect)
Note, these numbers are for ordering disks only.
In other countries, contact the nearest CDC Business Products
represen ta tive.
The 1ST II and the 1ST III have been approved by the Federal
Communications Commission (FCC) as not being harmful to the
telephone network when connected directly to the telephone
lines. Instructions for fully complying with Part 68, FCC
Docket 19528 can be found in the Site and Support manuals that
accompany the particular terminal being used.
62949100
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CONTENTS
1. GENERAL DESCRIPTION
Subsystem Configuration • • • • • • • • • • • •• 1-1
PLATO Master Flexible Disk Subsystem • • • • • • • 1-2
PLATO Slave Flexible Disk Drive • •• •• 1-2
RAM Expansion Feature •••••••••••••• 1-2
ROM Expansion Feature (Future Availability) ••• 1~2
Med ia • • • • • • • • • • • • • • • • • • • • • • 1-3
Equipment Specifications •••••••••••••• 1-4
2. OPERATION
Voltage Select Switch •••••••••••••••• 2-1
Power On/Off Switch/Circuit Breaker ••••••••• 2-1
Device Address Switch (Master units Only) •••••• 2-2
Master Reset Switch (Master Units Only) ••••••• 2-2
Diagnostic Control Switches (Master units Only) ••• 2-2
Switch 20 ••• •••••• • •••••• 2-3
Switch 21 •• • • • • • • • • • • • • • • • • • • 2-3
Switch 22 •••• • • • • • • • •• ••••• 2-3
Switch 23 •••• 2-3
Switch 24 a~d·25 : : : : : : : : : : : : : •••• 2-3
Switch 26 ••• • • • • • • • • •• • 2-4
Switch 27 •• 0. . . . . . ...... 2-4
LED Indicators •••• • • • • • • • • • • • • • • • 2-4
3. INSTALLATION AND CHECKOUT
packaging • • • • • • • • • • • • • • • • • • • • • • 3-1
Installation • • • • • • • • • • • • • • • • • • • • 3-1
Subsystem Installation • ••••••••••• 3-2
RAM Option Installation •••••••••• • 3-6
Checkout ••• • • • • • • • • • • • ~ • 3-7
4. THEORY OF OPERATION
x
AC Power Entry Panel • • • • • • • • • • • • • • 4-2
Power Supply • • • • • • • • • • • • •• •• 4-2
Backplane • • • • • • • • • • • • • • • • • • 4-3
Flexible Disk Drive (FDD) Assembly. • • •• •• 4-4
Controller Board (Master Units Only) •••• 4-6
Z80A Microprocessor ••••••• •• •••• 4-8
9517A-4 Direct-Memory-Access (DMA) Controller •• 4-8
1791A-02 Flexible Disk Controller (FDC) ••••• 4-9
2716 Erasable Programmable Read-Only Memory (EPROM)4-9
Z80 Counter/Timer Circuit (CTC) ••• • • 4-10
9519 Interrupt Controller ••• • • • • • • • • • 4-11
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External Interface Pin Assignments
Internal Connector Pin Assignments
• • • • • • • • • 4-12
• • • • • • • • • '4-12
s. DIAGRAMS
6.
Schematic Diagram, 9BED • • • • • • • • • • • • • • .5-2
Schematic Diagram 9BKD (PFDS Power Supply) ••••• 5-18
Schematic Diagram (9BMD) (FDD Controller Backplane) • 5-21
50/60 Hz A.C. Power Wiring ••••••••••••• 5-22
MAINTENANCE
General Maintenance Information • • • • • • • • • • • 6-1
Suggested Emergency Maintenance Procedure • • • • 6-1
Before Leaving for Customer Site • • • • • • • 6-2
Upon Arriving at Customer Site •• • • • • • • 6-2
Safety Precautions • • • • • • • • • • • • • • • • 6-3
Maintenance Tools and Materials ••••• ' •••• 6-3
MaS Circuit-Handling Precautions • • • • • • • • • 6-3
Maintenance Aids • • • • • • • • • • • • • • • • • 6-4
Location of Major Assemblies • • • • • • • • • • • 6-4
Diagnostic and Corrective Maintenance • • • • • • • • 6-4
Diagnostic Self-Test Routines •• • • • • • • • • 6-4
LED Tes t • • • • • • • • • • • • • • • • • • • 6-5
Test 0 - ROM Checksum • • • • • • • • • • • • • 6-5
Test 1 - RAM Test • • • • • • • • • • • • • • • 6-6
Test 2 - Interrupt Generator • • • • • • • • • 6-6
Test 3 - Flexible Disk Controller • • • • • • • 6-6
Test 4 - DMA Test • • • • • • • • • • • • • • • 6-6
Test 5 - I/O Loopback Test • • •• • • • • • • 6-6
Test 6 - CTC Test • • • • • • • • • • • • • • • 6-6
Test 7 - Writing and Reading the Disk • • • • • 6-7
DIAG Flexible Disk Diagnostic Tests •••• • • • 6-7
Explanation of SAM Format • • • • • • • • • • • • 6-7
Organization of SAMs and Procedures • • • • • • • 6-7
Procedure 1 - Power Application/Removal • • • • 6B-l
Procedure 2 - Flexible Disk Installation/
Removal • • • • • • • • • • • • • • • • • • • 6B-2
Procedure 3 - Front Panel and Cabinet Hood
Removal/Replacement • • • • • • • • • • • • • 6B-4
Procedure 4 - Controller Board Removal/
Replacement • • • • • • • • • • • • • • • • • 6B-5
Procedure 5 - Power Supply Removal/Replacement. 6B-6
Procedure 6 - Disk Drive Unit Removal/
Replacement • • • • • • • • • • • • • • • • • 6B-8
62949100
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711
8.
PARTS DATA
(Pre-Production Units Only)
SPL PLATO Flexible Disk Subsystem • • • • • • • • • • 7-3
SPL PLATO Slave Flexible Disk • • • • • • • • • • • • 7-5
Genealogy Chart PLATO Master Flexible Disk Subsystem
60 Hz • • • • • • • • • • • • • • • • • • • • • • • 7-7
Genealogy Chart PLATO Slave Flexible Disk Drive 60 Hz 7-a
Genealogy Chart PLATO Master Flexible Disk Subsystem
SO Hz • • • • • • • • • • • • • • • • • • • • • • • 7-9
Genealogy Chart PLATO Slave Flexible Disk Drive SO Hz 7-10
PLATO Flex ible Disk (TLA) • • • • • • • • • • • 0. • • 7-11
AC Entry Assy, Flex Disk •••••••••••••• 7-17
(Production Units Only)
SPL FAS01A (60 Hz Master) •••••••••••••• 7-21
SPL FAS01B (SO Hz Master) •••••••••••••• 7-23
SPL BRalOA (60 Hz Slave) •••••••••••••• 7-25
SPL BRalOB (50 Hz Slave) •••••••••••••• 7-27
Genealogy Chart (60 Hz Master) ••••••••••• 7-29
Genealogy Chart (SO Hz Master) ••••••••••• 7-30
Genealogy Chart (60 Hz Slave) •••••••••••• 7-31
Genealogy Chart (SO Hz Slave) •••••••••••• 7-32
PLATO Flexible Disk (TLA) • • • • • • • • • • • • • • 7-33
AC Entry Assembly • • • • • • • • • • • • • •• • • • 7-39
(Common Parts Data)
P.C. Card Assembly, 9BED
P.C. Card Assembly, 9BKD
P.C. Card Assembly, 9BMD
WIRE LISTS
• • • • • • • • •
• • • • • • • • •
· . . . . . . . .
FIGURES
• • • • • 7-43
• •••• 7-48.4
• • • • • 7-52
8-1
1. GENERAL DESCRIPTION
1-1
1-2
PLATO Flexible Disk Subsystem • • •
PFDS Master and Slave Unit Details
2. OPERATION
. . . . . • 1-1
• • • • • •
1-3
2-1
Control and Indicator Locations • • • • • • • • 2-1
xii
62949100 D
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4.
6.
1.
INSTALLATION AND CHECKOUT
3-1
3-2
3-3
3-4
3-5
Flexible Disk Subsystem Packaging • • • •
Controller Board Switches and Indicators
I/O Cable and Terminator Installation •
RAM Option FCO Log and ID Tag Placement •
Power Supply Voltage Indicators •••..
THEORY OF
OPERATION
4-1
Major Elements of
Subsystem
· · · · · · ·
4-2
Subsystem Block
Diagram
· · · · · · · · ·
4-3
Drive Assembly
Functional Block
Diagram
·
4-4
Controller Board
Block Diagram
· · · · ·
4-5
External
Wiring of
the
CTC for
Head-Load
4-6
External
Wiring of
the
CTC for Real-Time
4-7
Flexible
Disk
Interrupt
Network
· · · · ·
4-8
Internal
Connector
Pin
Assignments
· · ·
MAINTENANCE
6-1
Location
of Assemblies
in
Subsystem
· · ·
6-2
SAM
Example
. . . . . . · · · · · · · · ·
6B-l
Power
On/Off
Switch Location
· · · · · ·
6B-2
Diskette
Installation/Removal
· · · · · ·
· . • 3-2
• • • 3'-4
• • 3-5
• 3-6
• 3-7
·
4-1
· · ·
4-2
· · ·
4-5
· · ·
4-7
Timing
4-10
Clock
4-11
· · ·
4-12
· · ·
4-15
· · ·
6-5
· · ·
6-8
·
6B-l
· · ·
6B-2
6B-3
Front Panel and Cabinet
Hood
Mounting Details
·
6B-4
6B-4
Controller Board Layout
· · · · · · · ·
6B-5
6B-5
Power
Supply
Voltage
Adjustments
· · · · · · ·
6B-7
6B-6
Disk
Drive Unit
Installation
· · · · · · ·
6B-9
6B-7
Drive Pulley
Details
. · · · · · · · · · ·
6B-IO
TABLES
GENERAL DESCRIPTION
1-1 Equipment Specifications • • • • • • • • • • • 1-4
4. THEORY OF OPERATION
4-1 Parallel I/O Channel Pin Assignments • • • 4-13
4-2 Slave Drive Unit Channel Pin Assignments • 4-14
7 • PARTS DATA
7-1 Explanation of Column Headings on Assembly
Parts Lists • • • • • • • • • • • • • • • • • 7-1
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PLATO HOTLINE
800-328-9114
For Minnesota only
612-482-2006

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GENERAL DESCRIPTION
This section provides a general description of the PLATO Flexi-
ble Disk Subsystem (PFDS) configuration including the related
equipment specifications. The PFDS is a Z80 microprocessor-
based programmable storage subsystem that is intended for use by
a PLATO Information Systems Terminal. The subsystem interfaces
with the terminal via the PLATO parallel I/O channel. Refer to
figure 1-1 for an exterior view of the subsystem.
o
03892
Figure 1-1. PLATO Flexible Disk Subsystem
SUBSYSTEM CONFIGURATION
The PFDS is configured as two basic versions:
• PLATO Master Flexible Disk Subsystem
• PLATO Slave Flexible Disk Drive
62949100
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Each version is available as either a 60-Hz or 50-Hz product/
equipment. Refer to the preface for product/equipment number
correlation.
The subsystem can consist of a single master unit or a master
unit and one slave unit. The two units (master and slave) are
interfaced by attaching the signal lines of both 9406 Disk
Drives together via a 50-pin interconnecting I/O cable. The net
effect is that the controller logic board of the master unit is
interfaced to both 9406 Disk Drives connected in parallel as
shown in figure 1-2.
PLATO MASTER FLEXIBLE DISK SUBSYSTEM
The PLATO Master Flexible Disk Subsystem contains a CDC 9406
Flexible Disk Drive, a 50-Hz or 60-Hz ac power entry panel, a
mother-board backplane, a dc power supply, and a Z80-based con~
troller logic board.
PLATO SLAVE FLEXIBLE DISK DRIVE
The PLATO Slave Flexible Disk Drive is identical to a master
unit except that the ZaO-based controller logic board is removed.
RAM EXPANSION FEATURE
The standard subsystem random-access memory consists of 16K
8-bit words. The RAM size may be expanded to a total of 64K
a-bit words in 16K-word increments. Each 16K RAM option con-
sists of eight l6-pin integrated circuits (ICs). IC sockets are
provided on the controller logic board for installation of the
RAM chips.
ROM EXPANSION FEATURE (FUTURE AVAILABILITY)
The standard subsystem read-only memory consists of a two 2K by
8-bit EPROM that uses memory addresses 000016 through OFFF16.
1-2
62949100 C

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MEDIA
The media that can be used in the subsystem are the CDC 423
(single-sided, double-density), CDC 425 (double-sided, double
density), or CDC approved equivalents. These flexible disks
have the following characterists:
• Index - 1
• Sectors - Programmable
• Cylinders -77
• Tracks per cylinder - 1 for single-sided disk, 2 for
double-sided disk.
• Surfaces - 2
• Tracks per inch 48
• Bits per inch - 6816 double density
50-Hz, 220/240-V AC
OR
60-Hz, 120-V AC
LINE VOLTAGE
AC
ENTRY
PANEL
120 V AC
FAN
DC
POWER
VOLTAGES ..
9406
SUPPLY
FLE XIBLE
.. DISK DRIVE
.~:..
DC
-VOLTAGES
~ '7
h
ZBO-BASED
U
LOGIC
CONTROLLER
BOARD
A
" w _
+5 VOLTS
....
J
PLATO MASTER FLEXIBLE
SHIELDED
9406
SIGNAL
CABLE
m
~
~
ill
""r
fI.
~
:1
DISK SUBSYSTEM
TERMINATOR -jJ
OR CABLE
""[
I.,.
I/O
CABLE
TO THE
PLATO 1ST
TO ANOTHER
DEVICE*
50-Hz, 220/240-V AC
OR
60-Hz, 120-V AC
LINE VOLTAGE
AC
ENTRY
PANEL
120V AC
-FAN
DC
9406
A VOLTAGES
POWER
FLEXIBLE
SUPPLY
DISK DRIVE "
4 ~
DC
VOLTAGES
I---
'l1li ~
-- - -:.:: -,
1 (MISSING) ,
' ZBO-BASED '
LOGIC I
I CONTROLLER I
.. ' BOARD ,
A I
.?IL.. _____ J
..
-
Ur
+5 VOLTS
PLATO SLAVE FLEXIBLE
..
DISK DRIVE
03798
*The other device could be another PLATO Master Flexible Disk
Subsystem, Graphic Printer, etc.
**These connectors are not used.
Figure 1-2. PFDS Master and Slave Unit Details
62949100 C 1-3
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EQUIPMENT SPECIFICATIONS
Equipment specifications for the subsystem are listed in table 1-1.
TABLE 1-1. EQUIPMENT SPECIFICATIONS
CHARACTERISTIC SPECIFICATION
I
,
-----------------------+----------------------------.---------,
I
Dimensions: I
Height 202.S5 rom (7.99 in) I
Width 3Sl mm (14.99 in) I
Depth S02.S mm (19.7S in) ,
----~-------------------T--------~--------~-------------------I
Weight:
FASOI-A (60-Hz master)
FASOI-B (50-Hz master)
BRS10-A (60-Hz slave)
BRS10-B (SO-Hz slave)
16.7S'kg (37 1b) maximum
20.19 kg (44.51 lb) maximum
16.33 kg (36 1b) maximum
19.73 kg (43.5 lb) maximum
I
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1
)
Power Requirements:
I
1
,
I (Nominal)
FA501-A
FAS01-B
120 V ac,
220/240 V
60 Hz,
ac,
50
1.4
Hz,
,
A, O.lS kW maximum)
O.S A, 0.19 kW I
maximum
BRS10-A
120 V ac,
maximum
BRS10-B
220/240 V
maximum
60 Hz, 1.2
ac,
50
Hz,
A, 0.16 kW
o•6 SA, O. 16 kW
I
)
)
)
I
------------------------~---------------------------------------)
Temperature: I
Operating 10°C to 32°C (SOOF to 90°F) )
Nonoperating -34°C to 66°C (-30°F to 150°F) )
Ch
__ an_g~e~/h ________________ ~6-.-7-0-C~(-1-2-0-F~)-------------------- _______ I
I
Relative Humidity: I
Operating 10% to SO% )
Nonoperating S% to 95% I
___ C_h_a_n~g_e~/_h ______________ ~-1-0-%-- __ .---------------------------------)
I
_O~p_e_r_a_t_i_n~g __ A_l_t_i_t_u_d_e_: ______ +_3-0-0-0--m~(-9_S_5_0 __ f_t~) __ m_a_x_i_m_u_m _______________ 1
)
Heat Dissipation (Air): S5S Btu/h (161.3 W) maximum, fan cooled)
)
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