Digital Equipment RL01 User manual

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Instra

EK-RL122-TM-OOl
Rl01/Rl02
Technical Manual
Volume
11-
Service Procedures

EK-RL122-TM-OOl .
RL01/RL02
Technical Manual
. Volume
II
-Service Procedures
Prepared
by
Educational Services
of
Digital Equipment Corporation

1st EDITION, AUGUST 1982
Copyright @
1982
by
Digital
Equipment
Corporation
AI
Rights Rese.-;;ed
The material
in
this
manual
is for informational purposes
and
is subject to change
without notice.
Digital
Equipment
Corporation assumes
no
responsibility for
any
errors which
may
appear
il
His manual.
Printed
in
U.S.A.
This document
W88
set
on DIGITAL's DECset-8000 computerized type-
setting system.
• Class A Computing Devices:
Notice:
This
equipment generates, usesJ
and
may emit radio frequency energy.
The
equipment
has
been
type 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
radio frequency
in-
terference
when'
operated
in
a commercial
environment.
Operation of this
equip-
ment
in
a residential
area
may
cause
interference
in
which
CBse
the user at his
own
expense
may
be required to take measures to correct the interference.
The
following
are trademarks of Digital
Equipment
Corporation, Maynard, Massa-
chusetts:
DEC
DECUS
DIGITAL
Digital
Logo
PDP
UNIBUS
VAX
DECnet
DECsystem-10
DECSYSTEM-20
DECwriter
DBOL
EduSystem
lAS
MASSBUS
OMNIBUS
OS/8
PDT
RSTS
RSX
VMS
VT

CHAPTER
1
1.1
1.1.1
1.1.2
1.1.3
1.1.4
1.2
i.2.1
1.2.2
1.2.2.1
1.2.2.2
1.2.2.3
1.2.2.4
1.3
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
CHAPTER
2
2.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4 .
2.2.5
2.3
2.3.1
2.3.2
2.4
2.4.1
2.4.2
2.5
2.5.1
2.5.2
2.5.3
CONTENTS
INTRODUCTION
MAINTAINABILITY FEATURES
Hardware Maintenance Plan
.......................................
.
Additional Documentation
.........................................
.
Field Replaceable Units
...........................................
.
Recommended Spare Parts List
.....................................
.
SOFTWARE RESOURCES
..........................................
.
Diagnostics
.....................................................
.
Diagnostic Supervisor
............................................
.
Hardcore Questions
..........................................
.
Console Controls
............................................
.
Hardware Questions
..........................................
.
Software Question
...........................................
.
MAINTENANCE CONTROLS AND INDICATORS
.......................
.
Power ON/OFF Circuit Breaker
....................................
.
Power Terminal Block Assembly
..............
;
....................
.
Run/Stop Switch with LOAD Indicator
..............................
.
Unit Select (0, 1, 2,
3)
Switch with READY Indicator
.................
.
FA
ULT Indicator
................................................
.
WRITE PROTect Switch and Indicator
.......................................
.
REMOVAL
AND
REPLACEMENT
PROCEDURES
Page
1-1
1-1
1-1
1-1
1-4
1-5
1-5
1-5
1-5
1-8
1-8
1-8
1-8
1-8
1-8
1-10
1-11
1-11
1-11
INTRODUCTION....................................................
2-1
FRONT BEZEL AREA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
Prefilter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Absolute Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Front Panel Board
................................................
2-6
Slides
..........................................................
2-8
ACCESS COVERS
...................................................
2-8
Field Service Access
Cover.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Cartridge Access Cover ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
BRUSH AREA
......................................................
2-12
Brush Drive
......................................................
2-12
Brush Tips
......................................................
2-15
MODULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
AC Servo Module
................................................
2-17
DC Servo Module
................................................
2-17
Drive Logic Module
..............................................
2-19
111

Page
CHAPTER 2 REMOVAL AND REPLACEMENT PROCEDURES (CONT)
2.5.4
2.6
2.6.1
2.6.2
2.6.3
2.6.4
2.7
2.7.1
2.7.1.1
2.7.1.2
2.7.1.3
2.7.2
2.8
2.8.1
2.8.2
2.8.3
2.8.4
2.8.5
CHAPTER 3
Read/Write Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-
20
SPINDLE AREA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Belt From Spindle Pulley
..........................................
2-25
Spindle Ground Button
.......................
~
. . . . . . . . . . . . . . . . . . . .
2-
25
Spindle
..........................................................
2-
28
Sector Transducer
................................................
2-
28
rosmoNER
AREA
.................................................
2-30
Positioner
....
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Positioner in Early RLOI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2=30
Positioner in Newer
RL01
and Any RL02
..
. . . . . . . . . . . . .
..
. . . . . . . . 2-32
New Head Cable Guide
in
Older RL01
...........................
2-34
Read/Write
Heads.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
. . . . . .
..
. . . . . 2-36
REAR PANEL AREA
.............
~
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Power Supply
...................................
'.
. . . . . . . . . . . . . . . . 2-38
Spindle Drive
Belt.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-41
Power Supply Fan
................................................
2-43
Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
Spindle Drive Motor
................................
~
. . . . . . . . . . . . . 2-45
CHECKS, ADJUSTMENTS AND ALIGNMENTS
3.1
INTRODUCTION....................................................
3-1
3.2 VOLTAGE CHECKS
.................................................
3-4
3.3 SECTOR TRANSDUCER OUTPUT CHECK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.4 SECTOR PULSE TIMING CHECK
.....................................
3-5
3.5 READ SIGNAL AMPLITUDE ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.6
rosmoNER
RADIAL
ALIGNMENT...................................
3-10
3.7 HEAD ALIGNMENT. . . . . . . . . . . . . . . . . . .
..
. . . . . . . . . .
..
. . . . . . . . . . . . . . . . 3-14
3.8 SPINDLE RUNOUT CHECK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3.9
rosmoN
SIGNAL GAIN
CHECK.....................................
3-18
3.10 TACHOMETER
AC
NOISE PICK-UP
CHECK............................
3-20
3.11 VELOCITY PROFILE
CHECK.........................................
3-21
3.12 SERVO DRIVE MOTOR CURRENT
CHECK............................
. 3-23
3.13 ACCESS TIME CHECK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
APPENDIX A REGISTER SUMMARY
A.1
A.1.1
A.1.2
A.1.2.1
A.1.2.2
A.1.2.3
A.1.2.4
A.1.2.5
A.1.2.6
A.1.2.7
A.1.3
A.1.3.1
PROGRAM ACCESSmLE REGISTERS FOR II-FAMILY CONTROLLERS
..
.
Register Description
..............................................
.
CSR Error Code Defmitions
.....................................
e e e
Operation Incomplete (OP!)
...................................
.
Data CRC (DCRC) or Write Check (WCE)
.......................
.
Header CRC (HCRC)
........................................
.
Data Late (DLT)
............................................
.
Header Not Found (HNF)
.....................................
.
Non-Existant Memory (NXM)
.................................
.
Memory Parity Error (MPE)
...................................
.
Command Function Code Descriptions
...............................
.
Write Check -Function Code I
................................
.
iv
A-I
A-2
A-8
A 0
rI.-O
A-8
A-9
A-9
A-9
A-9
A-9
A-9
A-9

APPENDIX A REGISTER SUMMARY (CONT)
A.1.3.2
A.1.3.3
A.1.3.4
A.1.3.5
A.1.3.6
A.1.3.7
Get Status -Function Code 2
..................................
.
Seek -Function Code 3
.......................................
.
Read Header -Function Code 4
................................
.
Write Data -Function Code 5
..................................
.
Read Data -Function Code 6
..................................
.
Read Data Without Header Check -Function Code 7
...............
.
APPENDIX B INSTALLATION
B.I
B.1.1
B.1.1.1
B.1.1.2
B.1.1.3
B.1.1.4
"011,
.LJ.~
• ..l •
.J
B.1.1.6
B.1.1.7
B.1.1.8
B.1.1.9
B.l.1.IO
B.1.1.I1
B.1.2
B.1.3
B.1.3.1
B.1.3.2
B.1.4
B.1.5
B.2
B.3
B.4
B.5
B.5.1
B.5.2
B.5.3
B.5.4
B.6
B.6.1
B.6.2
B.6.3
B.6.4
B.6.5
B.6.6
B.6.7
B.6.8
B.6.9
B.7
B.?I
SITE PREPARATION AND PLANNING
................................
.
Environmental Considerations
......................................
.
Cleanliness
.................................................
.
Space Requirements
...
'.'
.....................................
.
Floor Loading
...............................................
.
Heat Dissipation
.............................................
.
.l.A::a.coustics
.......................;;;;;;;;;.:
= = =
Je
e = = = = = =
~
e e e • ..
.. .. ..
•
..
• • • • •
Tem]Jerature
................................................
.
Relative Humidity
............................................
.
Altitude
......................................................
.
Power and Safety Precautions
..................................
.
Radiated Emissions
..........................................
.
Attitude/Mechanical Shock
....................................
.
Options
........................................................
.
AC Power Requirements
..........................................
.
Standard Applications
........................................
.
Optional.Applications
........................................
.
Grounding Requirements
..........................................
.
Installation Constraints
...........
,
...............................
.
AC
CABLING
......................................................
.
INSTALLATION -GENERAL
........................................
.
RLII
CONTROLLER INSTALLATION
.................................
.
RLVIII CONTROLLER INSTALLATION
...............................
.
Bus Interface Module
............................................
.
Drive Module
...................................................
.
Module Slot Location
............................................
.
Module Installation
...............................................
.
RLVI2 CONTROLLER INSTALLATION
...............................
.
Introduction
....................................................
.
Device Address Selection
.........................................
.
Bus Selection
.........
~
.........................................
.
Interrupt Vector
...................
~
..
~
..........................
.
Interrupt Request Level
...........................................
.
Memory Parity Error Abort Feature
................................
.
Other Jum]Jers
..................................................
.
Installation
......................................................
.
Acceptance Testing
..............................................
.
RL8A CONTROLLER INSTALLATION
...............................
.
Introduction
....................................................
.
v
Page
A-IO
A-IO
A-IO
A-IO
A-IO
A-II
B-1
B-1
B-1
B-1
B-1
B-1
B-2
B-2
B-2
B-2
B-2
B-2
B-3
B-3
B-5
B-5
B-5
B-7
B-8
8-8
B-12
B-I2
B-I7
B-I7
B-20
B-20
B-21
B-22
B-22
B-22
B-26
B-26
B-26
B-26
B-2?
B-2?
B-28
B-28
B-28

APPENDIX B INSTALLATION (CONT)
B.7.2
B.7.3
B.8
B.8.1
B.8.2
B.8.3
B.8.4
B.9
0.9.1
B.9.2
B.9.3
B.10
Module Slot Location
............................................
.
Module Installation
...............................................
.
RL01/RL02 DISK DRIVE INSTALLATION
............................
.
Unpacking and Inspection
........................................
.
RL01/RL02 Disk Drive Unit Mounting
.............................
.
Drive Prestart-up Inspection
.......................................
.
Drive Start-up Operation Check
...................................
.
CONFIDENCE TESTING
............................................
.
RLII-Based Diagnostics
.........................................
.
RLV11/RLV12-Based Diagnostics
.................................
.
RL8A-Based Diagnostics
.........................................
.
USE OF THE M9312 BOOTSTRAP WITH AN
RLll
SUBSYSTEM
........
.
APPENDIX C TOGGLE-IN PROGRAMS
Page
B-28
B-28
B-30
B-30
B-31
B-37
B-39
B-39
n
AI'\
D-"+U
B-42
B-43
B-44
C.1 HEAD SELECTION PROGRAM FOR RLI1/RLV11/RLV12
................
C-1
C.2 HEAD SELECTION PROGRAM
FOR
RL8A
.............................
C-2
C.3 GET STATUS (WITH OR WITHOUT RESET)
ON
AN
RL11/RLV11/RLVI2 .
SUBSYSTEM
...................................................
C-3
C.4 GET STATUS ON AN RL8A SUBSYSTEM
.............................
C-4
C.S
OSCILLi~lLTING
SEEK FOR RLll!RLVl1!RLV12
.........................
C-5
C.6 OSCILLATING SEEK FOR RL8A
.....................................
C-6
APPENDIX D
RLll
CONFIGURATION AND INSTALLATION CONSIDERATIONS
D.1 SPC CONSIDERATIONS
.............................................
D-l
D.2 CONFIGURATION CONSIDERATIONS
................................
D-2
FIGURES
1-1
RL01/RL02 Disk Drive Controls and Indicators
(Front Panel)
....................................................
1-9
1-2
RL01/RL02 Disk Drive Controls and Indicators
(Rear Panel)
....................................................
1-10
2-1
Removal and Replacement Sequence Flowchart
............................
2-
2
2-
2 Front Bezel
.........................................................
2-
3
2-3
Absolute Filter Access
................................................
2-4
2-4 Absolute Filter
......................................................
2-5
2-5
Front Panel Printed Circuit Board
.......................................
2-7
2-6 Slide Rails
..........................................................
2-9
2-
7 Field Service Access Cover
............................................
2-10
2-8 Module Location
.....................................................
2-11
2-9
DC
Servo Module
....................................................
2-13
2-10 Exposed Drive Baseplate
..............................................
2-14
2-11
Exposed Brush Drive Assembly
....
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2-12
AC
Servo Module
....................................................
2-18
2-13 Drive Logic Module W 1 Location
......................................
2-19
2-14a Read/Write Module (Upright) Old Style
.................................
:
2-21
2-14b Read/Write Module (Upright)
New
Style. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
VI

FIGURES
(CONT)
2-15
2-16
2-17
2-18
2-19
2-20
2-21
2-22
2-23
2-24
2-25
2-26
2-27
2-28
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
3-14
3-15
B-1
B-2
B-3
B-4
B-5
B-6
B-7
B-8
B-9
B-I0
B-ll
B-12
B-13
B-14
B-15
B-16
B-17
B-18
B-19
B-20
Read/Write Module Box Disassembly
...................................
.
Spindle Access Cover
................................................
.
Spindle Ground Button
...............................................
.
Sector Transducer Mounting
...........................................
.
Positioner Assembly
.................................................
.
Head Cable Guide
...............................
"
....................
.
Location
of
Plastic Insulating Sticker
........................
: . 0 0 0 0 • 0 0 0
••
0
Read/Write Heads
....
0 • 0
o.
o
••
0
••••••
0.0.0
•••••••
o
•••
0000000000
••
000.
0
Rear View
of
Drive
..
0 • 0
••
0 • 0
•••••
0
•••••••
0
••
0 • 0
••
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Rear Panel Assembly . 0
•••••••
0
••••
0 0
••
0
•••
0 0
•••
0 • 0 0
••••••••
0 0 • 0 • 0 0 • 0 0 0
Drive Motor Mounting . 0
••
0
••••
0
••••••••
0
••••••
0 • 0 • 0 0 • 0 • 0 0 0 • 0 0 0
••
0 0 0 0 •
Drive Belt Tension 0
••
"
••••
0 • 0
••
0 • 0
•••••
0
••
0 0 • 0 • 0
••••
0 0 0 • 0 0 0 0 0 0 0
••
0 0 0 0 0 0
Circuit Breaker
...
0
••••
0 • 0 0 • 0
•••••••
0 0
0"
• 0 • 0
••
0 • 0 • 0 0 • 0 • 0 0 • 0 0 0 0 0 0 0 0 0 0 0 0 •
Drive Motor Assembly Technique
...
0
••••
0 • 0 • 0 • 0 • 0 0 0 • 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Drive Logic Module Layout
o.
0
•••
0 0 0 • 0
••
0 0
••
0 • 0 0 0 • 0 0 • 0 •
"0
0 0 0 0 0 0 0 0 0 0 0
0,
0 0 •
Sector Transducer Output
o.
0 0 • 0 • 0
••
0 0 • 0 • 0 • 0 • 0 0 • 0
•••••
0 0
•••
0 0 • 0 0 • 0 • 0 0 0 0 •
Sector Pulse Timing
............................
0 0
•••
0
••••
0
•••••
0 '
•••
0
••
Positioner and Read/Write Module Box Assembly
...
0
••••••
0
•••••
0
••••••
0
••
Servo Bursts and Sector Pulse
..................
0 0 0 • 0 0 • 0 • 0 0
•••••••
0 0 0 0
••
Amplitude Adjustments POT Locations
..
0
•••••••
~
••••••••••
0
••
0
••
0 • 0 0
••••
Positioner Assembly
.................
0
••••••••
0
••••
0
••••
0 0 • 0 • 0
••
0
••••
0
Position Signal . 0
•••••••••••••••••••••••••••••••••••
0
•••••••••
0 0 • 0 0 0
••
Position Signal Gain Check Waveforms
......
"0
•••••••••••
0
••
0 0 • 0
•••••••
0 • 0
Summing Amplifier Output
.......
0
••••••••••••••••••••••••••
~
•••••••
0
••
Tachometer Output Velocity Signal
.........................
0
••••••••••••
Positioner Motor Current Check
..........................
0
•••••••••
0
••••
Access Time Check (One Track Seek)
.........................
"
..........
.
Access Time Check (85 Track Seek)
....................................
.
Access Time Check (255 Track Seek)
.......
_
.......................
-.
...
.
RLOI/RL02 Disk Drive -Rear View
..................................
0.
Approved Electrical Plugs and Receptacles
...............
0
••••••••
0
•••••••
Power Panel Grounded to Building Frame
..............
0
••••
0
••••
0000.
0
•••
Power Panel Grounded to Metal Plate
..
0
••••••••
0
••••••
0
••
0
•••••
0
••••••••
Typical 60 Hz Power System
....
0
•••••
0
••••
0
•••
0
••••••••
0 • 0
•••
0 0
••••
0 0 •
Typical 50 Hz Power System
....
0
••
0 • 0
••
0 0
•••
0 0
••••••
0
••••
0
••
0
••••
0 0
•••
Split Phase (2-Phase) Power System
...........
0
••••••
0
•••••
0
•••••
0
••
0 • 0 •
Three Phase Y Power System
00
••••••••
000.
0
•••
0
••••••
0
•••••••••
00
••••••
RLll
Component Layout
..............
0
•••••••••••
0 • 0
••••
0
••••••
0
•••••
RLll
Base and Vector Address Jumper Configurations
...........
0
•••••••
0
••
RLll
Priority Jumper Assembly Connections
.............
0
••••••••••••••••
RLll
Controller Installation . 0
••••••••••
0 • 0
•••••••••••
0
•••••••••••••••••
RLVII
Bus Interface Module (M8014) (Component Side) 0
•••••••••••••
0 0
•••
RLVII
Base Address Switch Settings
......
0
••••••••••••••
0
•••••••
0
••
0
•••
RLV
11
Vector Address Switch Settings
...............
0
•••••••••••
0
••••••
0
RLVl1 Drive Module (M8013)
...........
0
•••••••••
0 • 0
••
0
••••••••••••••
H9273 Backplane Grant Priority Structure
..
0
••••
0
••••••
0
••••
0 0
•••••••••
"
•••
RLV12 Jumper Locations
...............
0
••
0 • 0
.0
••••••••••
0
••••
0
••
0
•••
0
RLV
12
Device Address Format
....
0
••••••
0
••
0
•••••
0
••••••••••••••
0 • 0
••
0
RLV
12
Format Interrupt Vector 0
•••••••••
0
••••
0
•••••••••••••••
0
•••••••••
vii
Page
2-24
2-26
2-27
2-29
2-31
2-33
2-35
2-37
2-39
2-40
2-42
2-43
2-44
2-45
3--1
3-5
3-6
3-7
3-8
3-9
3-13
3-18
3
..
19
3-21
3-22
3-24
3-25
3-25
3-26
B-5
B-6
B-7
B-8
B-9
B-Il
B-I0
B-I0
B-12
B-14
B-15
B-16
B-18
B-19
B-19
B-20
B-21
B-24
B-25
B-26

FIGURES (CONT)
B-21
B-22
B-23a
B-23b
B-24
B-25
B-26
B-27
TABLES
1-1
1-2
1-3
1-4
1-5
3-1
3-2
A-I
A-2
A-3
A-4
A-5
A-6
A-7
A-8
A-9
A-I0
A-II
A-12
A-13
A-14
A-15
A-16
A-17
A-18
A-19
A-20
B-1
B-2
B-3
B-4
B-5
B-6
RL8A
JumJ>ers
......................................................
.
H950 Shipping Package
..........
:
....................................
.
RLOI/RL02 Cabinet Installation
........................................
.
RLO
I/RL02 Cabinet Installation
........................................
.
RLOI/RL02 Disk Drive -Exposed Drive Logic Module
....................
.
RLOI/RL02 -Covers Removed
........................................
.
RLOI/RL02 Disk Drive -Rear View
....................................
.
RLOl/RL02 Disk Drive -Front View
...................................
.
RLOI/RL02
........................................................
.
FRU Part Numbers and Interchangeability
................................
.
Recommended Spare Parts List
.........................................
.
Diagnostic
SUJ>ervisor
Commands
......................................
.
Command Parameters
................................................
.
Service
JumJ>ers
for Drive Logic Module
................................
.
Methods for Selecting Heads
..........................................
.
Subsystem Registers Overview
.........................................
.
Control Status Register Bit Description
..................................
.
Bus Address Register Bit Description
...................................
.
Disk Address Register Bit Description for Seek
Commands
.....................................................
.
Disk Address Register Bit Description for Data
Transfer Commands
..............................................
.
Disk Address Register Bit Description for Get
Status Commands
................................................
.
MP Register Bit Description for Get Status Commands
.....................
.
MP Register Bit Description for Read Header Commands
...................
.
MP Register Bit Description for Data Transfer Commands
..................
.
RL8A Instruction Set
.................................................
.
Command Register A During a Seek Command
...........................
.
Command Register A During Read
or
Write Data Command
................
.
Command Register B
.................................................
.
Break Memory Address Register
.......................................
.
Word Count Register
.................................................
.
Sector Address Register
...............................................
.
Error Register
.......................................................
.
Silo Buffer Word 1
of
a Get Status Command
............................
.
Silo Buffer Word 2
of
a Get Status Command
............................
.
Silo Data Buffer Contents Following a Read Header
Command
........................................................
.
Saleable RLOI/RL02 Subsystem Options
.................................
.
Saleable Cabinet Options: (Includes Skins, Doors, Covers,
Trim, and Power Controllers)
......................................
.
Address Selection
....................................................
.
Diagnostic Catalogs and Indexes
.......................................
.
RL
11
Based Diagnostics
.............................................
: .
RLII
Diagnostic Kit Numbers
.........................................
.
viii
Page
B-29
B-30
B-32
B-33
B-34
B-35
B-36
B-37
1-2
1-2
1-4
1-6
1-7
3-3
3-3
A-I
A-2
A-4
A-4
A-5
A-5
A-5
A-7
A-8
A-II
A-12
A-13
A-14
A-15
A-15
A-15
A-16
A-17
A-18
A-19
B-3
B-4
B-23
B-40
B-40
B-40

TABLES (CONT)
B-6
B-8
B-9
B-I0
B-ll
B-12
B-13
RLII
Diagnostic Components
..........................................
.
User Documents
.....................................................
.
RL
Vl1/RL
V12 Diagnostic Kit Designations
..............................
.
RL8/RLOI Diagnostic Components
.....................................
.
RL8/RLO1 Diagnostic Kits
........................
"
....................
.
RL8A Diagnostic Kits
..........................
'.'
....................
.
RL8/RL02 Diagnostic Components
.....................................
.
ix
Page
B-41
B-42
B-42
B-43
B-44
B-44
B,..45

CHAPTER
1
INTRODUCTION
This chapter defines the maintenance philosophy and acquaints the reader with the structure of this
portion of the manual.
It
defines the required resources available to correctly maintain the
RLOI
/RL02
disk subsystem. The maintenance controls and indicators are also discussed here.
1.1
MAINTAINABILITY FEATURES
The following paragraphs summarize the
RLO
1 and RL02 hardware maintenance plans. The manual
organization
is
outlined and an overview of the various troubleshooting techniques
is
discussed. A list-
ing of Field Replaceable Units (FRUs) is also given.
1.1.1 Hardware Maintenance Plan
Serviceability has been a major consideration in the design of the
RLO
1
/RL02
disk subsystem. A large
portion of the drive electronics has been incorporated on one logic module, the drive logic board.
The
remaining electronics exist
on
the read/write module, dc servo module, ac servo module, and the front
panel.
The removaljreplacement capability is accomplished without the aid of special alignment fixtures or
tools. These designed-in features readily permit a maintenance philosophy of module or subassembly
replacement. Therefore, the troubleshooting strategy is to isolate the failing module or subassembly and
replace it.
1.1.2 Additional Documentation
Table
1-1
lists the hardware documentation
that
is
available to support the
RLOI
/02
Disk Subsystem.
1.1.3 Field Replaceable Units
Table
1-2
is
a list of
RLOI
/RL02
Field Replaceable Units (FRUs). Some of the FRUs contain com-
ponents that are easily checked and replaced. In these cases, an
FRU
may be repaired instead of re-
placed. For example, a lamp may be replaced on the front panel or a pico fuse replaced on the
DC
Servo module. The decision to replace or repair an
FRU
should be based
on
such local considerations as
part availability, etc.
t
Some of the FRUs are interchangeable between the
RLOI
and RL02 and some are not. The inter-
changeability
is
indicated in Table
1-2.
1-1

Table 1-1
RLOlj02
Documentation
Name
RL
11
Controller Technical Description
Manual
RL
VI I Controller Technical Manual
RL8A
Omnibus Controiier Technicai
Manual
RLO
1 Disk Drive Illustrated
Parts
Breakdown
RL02 Disk Drive Illustrated Parts
Breakdown
RLOI
/RL02
Preventive Maintenance
Procedures
RLOI/RL02
Pocket Service Guide
RLOI
/RL02
Disk Subsystem User's
Guide
RL
V
12
Disk Controller User's Guide
RL
V
12
Controller Technical
Description Manual
Table 1-2 FRU
Part
Numbers and
Interchangeability
FRU
Read/Write
Module
DC S'ervo Module
Template for DC Servo
Drive Logic Module
(DLM)
Microfiche
Number
EP-ORLII-TD
EP-RLVII-TD
EP-ORL8A-TM
EP-OOO
16-
IP
EP-000I6-IP
EP-00008-PM
....T I
...
l~
I/"\.
N/A
N/A
EP-RLVI2-TD
RLOI
Part
Number
54-11844
54-11850
74-18588
54-12175 (early)
54-12175 Rev KeD
1-2
HardCopy
Number
EK-ORLII-TD
EK-RLVII-TD
EK-ORL8A-TM
EK-ORLOI-IP
EK-ORL02-IP
EK-RLOI2-PM
EK-RLTER-PS
EK-RLOI2-UG
EK-RLVI2-UG
EK-RLVI2-TD
RL02
Part
Number
54-13536
54-13534
74-20826
54-13531 (early)
54-14025 (later)
54-14025 Rev
Ll(!)

Table 1-2 FRU
Part
Numbers and
Interchangeability
(Cont)
FRU
Spindle
5 amp fuse (DC Servo)
AC
Servo Module
Front Panel
Front Panel Lamp
(GE
73)
Sector Transducer
Positioner
Brush Drive Assembly
Brush Assembly
Spindle/Blower
Motor·
Spindle Drive Belt
Spindle Ground Brush
Coarse Filter
Absolute Filter
I/O
Terminator
Cartridge Access Cover Roller Guides
Cover Switch Assembly 1
Head Cable Guide
Insulating Sticker
Power Panel
• Cooling fan
• Transition Connector
FRU
Upper Head
Lower Head
RLOlj02
Part
Number
70-15116
12-05747-00
54-11848
54-11846
12-12716-01
70-12137
70-12117
70-12112
70-16726
70-12114
12-13369
74-15294
74-15297
12-13097-00
70-12293-00
74-21977
70-16991
70-16983
74-22834
70-12130
12-09403-01
12-11591-35
RLOI
Part
Number
74~17178-O1
74-17178-00
NOTE
RL02
Part
Number
70-15637-01
70-15637-00
All
part
numbers denoted with aQ)represents those
FRUs
that
must be used in RLOls
or
RL02s
that
do
not have cleaning brushes.
1-3

1.1.4 Recommended
Spare
Parts
List
Table
1-3
shows
the
Recommended
Spare
Parts
List.
Table 1-3 Recommended
Spare
Parts
List
Part
Branch Spares
Number Description Stocked Kit
70-12.130 Power Panel Y N
54-11844
Rp~~
IWr;tp
Mn~111p
y y
...
"'....,
......
~I
......
.a.
.....
'"
,L
..
.a.,,--...
......
....,
(RLOlonly)
54-12526
Read/Write
Module Y y
(RL01,
RL02)
54-11846 Front Panel Board Y Y
54-11848
AC
Servo Module Y Y
54-11850
DC
Servo Module Y y
(RLOlonly)
54-13534
DC
Servo Module Y Y
(RLOl,
RL02)
54-12175 Drive Logic Module Y y
(RLOlonly)
54-14025 Drive Logic Module Y Y
(RLOl,
RL02)
70-12107 Front Panel Cable N N
70-12108 Harness Power Panel N N
70-12109 Line
Cable
y N
70-12110 Cooling Fan Cable N N
70-12112 Brush Drive Assembly Y Y
70-12114 Disk Motor Assembly Y N
70-12117 Positioner Assembly Y N
70-12119
Rear
Cover N N
70-12120 Spindle Assembly Y N
(RLOlonly)
70-15116 Spindle Assembly Y N
(RLO
1,
RL02)
70-16991 Cover Switch Assembly Y N
(RLOl,
RL02,
DRIVES
without brushes)
70-12123
Cable
Logic N N
70-12126
Brush/Door
Harness N N
70-16852-01 A Terminal Block Assembly Y N
70-12136 Positioner Harness N N
70:..12137
Transducer
Assembly Y y
1-4

Table 1-3 Recommended Spare
Parts
List (Cont)
Part
Number
70-12139-01
70-12139-02
70-12140
70-12142
12-13369
74-15297
12-13097
-03
74-17178-00
74-17178-01
70-15637
70-15638
RLOIK-DC
RL02K-DC
70-12293
70-12139-OD
74-15231
12-09403-01
12-14360-02
Description
Read/Write
Cable
AC Servo Cable
DC Power Harness
Power Harness
Drive Belt
Prefilter
Absolute Filter
Head
"A"
Up (RL01)
Head
"A"
Down (RL01)
Head
"A"
Up (RL02)
Head
"A"
Down (RL02)
Cartridge (RL01)
Cartridge (RL02)
Terminator
DC Servo Cable
Gasket, Blower
Fan
Circuit Breaker
1.2 SOFTWARE RESOURCES
1.2.1 Diagnostics
Branch
Stocked
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
N
Spares
Kit
N
N
N
N
Y
N
N
Y
Y
Y
Y
N
N
N
N
N
N
N
The various diagnostics available for RL8A,
RLII,
RLVI2, and
RLVll-based
subsystems are de-
scribed
in
Appendix
B,
Paragraph B.9, "Confidence Testing".
1.2.2 Diagnostic Supervisor
All of the diagnostics are run under the Diagnostic Supervisor. When one of the diagnostics
is
called
up, the Supervisor asks a series ofquestions
that
enables the operator to set various parameters govern-
ing the specific diagnostic. The various commands the Supervisor will accept are summarized
i~
the
followjng paragraphs. (Questions whose answers are self-evident are not explained here.)
1.2.2.1 Hardcore Questions -Several of the questions
that
the Supervisor will ask do not have simple
yes or
no
answers. These include the questions explained below.
The Supervisor
will
display the statement
"TYPE
TWO
CHARACTERS
FOUR
SECONDS
APART" when
no
clock
is
on the system.
The
system will then subdivide the spacing for use as a clock.
The four second interval should be as accurate as possible.
The prompt
"DS-C>"
is
requesting one of eleven supervisor "commands" listed in Table
1-4.
1-5

Table 1-4 Diagnostic Supervisor Commands
Command
STA
RES
CON
PRO
DIS
DRO
ADD
PRI
FLA
ZFL
CCI
Description
STArt diagnostic and then produce questions
for
generation of the diagnostic parame-
ter
tables
("P"
tables).
REStart diagnostic at the point following the hardware questions. The
"P"
tables set
up by the STA command will be used.
CONtinue the diagnostic at the beginning of the subroutine that
was
being executed
when the diagnostic
was
halted by an error or control "e".
PROceed testing with the diagnostic at the starting address of the subroutine following
the one that caused the error report.
DISplay the hardware
"P"
tables for all the drives under test.
DROp the desired units from being tested.
"UNITS",
in this case, refers to the
"P"
table units, not necessarily the device unit numbers. The DIS command
will
give the
operator the drive unit number.
ADD units back into the testing sequence after they had been dropped by the DRO
command.
PRInt any performance or statistical tables accumulated by the diagnostic.
FLAgs command -The current setting of all the flags set up under the
ST
A command
are printed out for inspection.
Zero FLags command -All current flags set by the
ST
A command are cleared by this
command.
Create Core Image command -This command enables a BIC file to be created on
these diagnostics to be run under the XXDP media. (See listing for directions.)
NOTE
The last character
in
the prompt (in this example a
"C")
reflects the revision
level
of
the diagnostic su-
pervisor. The example in this text is
DS-C>.
Diag-
nostic Supervisor revision
"C".
Program Parameter Changes -Type
in
any combination of the parameters listed in Table
1-5
to affect
the indicated commands.
1-6

Table 1-5 Command Parameters
Command
STA
Parameter
DS-C>STA/TESTS:
(insert test numbers desired from the test lists in the individual
diagnostic listings; e.g. 1:2 means tests 1 and 2, or 1-5:8-10 means tests 1 through 5 and
8 through 10.)
DS-C>STA/TESTS:6/PASS:
(insert the number of passes the diagnostic should take
before halting)
DS-C>STA/TESTS:6/PASS:2/FLAGS: (insert any of these mnemonic(s) represent-
ing a program flag(s»:
HOE -Halt On Error
LOE -Loop On Error
IER -Inhibit Error Report
IDE -Inhibit Basic Error reporting
IXE -Inhibit eXtended Error reporting
PRI -PRInt messages on line printer
PNT -PriNt Test numbers as they are being executed
DOE
-Bell On Error
UAM -Bypass manual intervention tests
ISR -Inhibit Statistical Reports
IDR -Inhibit DRopping of units
DS-C>STA/TESTS:6/PASS:2/FLAGS:IER:PNT:BOE:IDR/EOP: (insert a num-
ber equaling the pass intervals
at
which the End
Of
Pass message will be printed; e.g.
every other pass, every third pass, etc.)
For example, utilizing all the possible parameter changes, the
ST
A command would
look like this:
DS-C>STA/TESTS:6/PASS:2/FLAGS:IER:
PNT:BOE:IDR/EOP:3
RES Use TESTS, PASS, FLAGS
and/or
UNITS
to, be tested; e.g. DS-
C>
RES/TESTS:6/UNITS:l
(this will run only test 6 on the device specified in
"P"
table 1)
CON Use PASS or FLAGS only
PRO Use FLAGS only
DRO Use
UNITS
only
DIS Use
UNITS
only
ADD
Use
UNITS
only
1-7

Table 1-5 Command Parameters (Cont)
Command Parameter
PRI
No
variations
FLA
No
variations
ZFL
No
variations
CCI Use TESTS, PASS or FLAGS
1.2.2.2 Console Controls -There are three console controls that can be used to affect a running diag-
nostic. They are all typed by holding down the
"CONTROL"
key while typing the specific letter.
Control "e" causes testing to cease and a return to the start
(DS-C».
Control
"Z"
causes default values to be taken in any of the three operator dialogues.
Control
"0"
causes a supression of typeouts for the remainder of the diagnostic or until another control
HO"
is
typed.
1.2.2.3 Hardware Questions -It
is
during the hardware question portion of the Supervisor
that
the
"P"
(parameter) tables are built. There
is
one
"P"
table for every unit to be tested. Also,
"UNITS"
pertains to the
"P"
table number, not the device unit number.
If
there
is
doubt as to which unit number
has been assigned to which drive, the DIS command (see Table
1-4)
will supply the necessary informa-
tion.
1.2.2.4 Software Question -The question
"CHANGE
SW(L)?" asks if any of the software parame-
ters are to be changed. A
"Y"
will cause the program to ask various questions. For more detail refer to
the individual program document.
1.3 MAINTENANCE CONTROLS AND INDICATORS
Figures I-I and
1-2
show all RLOI/RL02 Disk Drive controls and indicators.
1.3.1 Power
ON/OFF
Circuit Breaker
When the ac power plug
is
inserted into a 115/230 Vac,
50/60
Hz
outlet, ac power
is
applied to the
rear panel circuit breaker on the drive. When the circuit breaker
is
turned on, ac power
is
applied to the
drive and the blower motor
is
energized.
1.3.2 Power Terminal Biock Assembiy
The RLOI/RL02 Disk Drive operates within two ac line voltage ranges
at
either
50
or 60 Hz:
• 90 -
128
Vac
•
180
-256 Vac
These voltage ranges may be manually selected by changing the position of the terminal block.assembly
covers located
at
the rear of the drive. Refer to Figure
1-2.
1-8

LOAD SWITCH
AND INDICATOR
UNIT
SELECT PLUG
AND
READY INDICATOR
FAULT
INDICATOR
WRITE PROTECT SWITCH
AND
INDICATOR
I Figure
1-1
RLO
1
/RL02
Disk Drive Controls
and Indicators (Front Panel)
1-9
CZ-1005
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