IBM 6360 Installation instructions

IBM 6360 Diskette Unit
IBM 6580 Display Station

The drawings and specifications contained herein shall not be
reproduced in whole or in part without written permission.
IBM has prepared this maintenance manual for the usc of
IBM Customer Service Representatives in the installation,
maintenance and repair of the specific machines indicated.
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purpose.
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from time to time. Any such change will be reported in subse-
quent revisions or distributed through Customer Engineering
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tric" are registered trademarks of the IBM Corporation.
©Copyright International 8usiness Machines Corporation
1980, 1981. 1982, 1983
ii IBM Displaywriter Product Support Manual
SAFETY PRECA UTIONS
All IBM Customer Service Representatives are e:.:pected to
take every safety precaution pos.'iihle and ob"erve the fol/ow-
ing ,'iaftey practke.'i when servidng IBM equipment.
Mechanical Safety:
I. Safetyglasses must be worn.
2. All safety devil...·es, such as guards, shields, signs, ground
wires, etc., must be restored after maintenance. When a
guard or shield is removed to observe or make an adjust-
ment, that shield must be rep/aced when work in the area
is completed.
J. H'atches, rings, necklaces, ID bracelets, etc., must be
remo\'cd when scn'icing the l11.1chine.
4. Carc nHlst bc lIscd wIlen working near moving parts.
Keep hair aU',ly from moving purts. A\loid wearing loose
clothing that might be caught in the machine. Shirt
slee\'es must be kept buttoned or rolled abm'e the elbows.
Tics must be tucked in the shirt or hm'c a tic clasp appro,x-
imatel.\' three inches from the cnd. Tie chains are not
rccommcl1dc..'d.
fJe('trical Safety:
I. The cquipment refcrenced in this manual nU1Y use high
\'oltages. Check \'oltage labels!
2. Safety glasses must be u'orn u'hen checking energized
circuits.
3. If a circuit is disconnected for scrvicing or parts replace-
mcnt, it mWit be reconnected and tested before allowing
the use of the machine.
4. P()\\'t .. 'r should be removed 'from the machine for servicing
whene\'er possible. Remember, when checking voltages,
a\'oid contacting ground potemial, such as metal floor
.fitril's. machine fmme, etc.
5. I\1ctt'r continuitr checks should be used instead of I!oltaae
chccks u'!1cnc\'t:r possible. ~
6. Do not apply pou'a to un.\' purt, componcnt, or
SlIbassembly when it is not physically mOlll1ted in the
machinc, or in its appro\'ed sen/ice position.
General Safet),:
I. Each Customer Service Representative is responsible to
be certain no action on his/her part makes the product
unsafe or exposes customer personnel to hazards.
2. Store the removed machine covers in a safe, out of the
way place where no one can trip over them.
J. If you must leave the machinc in a down condition,
always install the covers and disconnect thc power before
leaving the customer's office.
4. Always place CSR tool kit away from walk areas where
no one can trip over it.
5. Maiptain safe conditions in the area of the machine while
performing and after completing maintenance.
6. Before starting the equipment, make sure fellow CSRs
and customer personnel are not in a hazardous position.
7. All the machine covers must be in place before the
machine
is returned to the customer.
Note: Refer to the Safety CEMs relating to this product(s) for
further safety precautions.

PREFACE
This manual contains information necessary to understand the operational theory
and to service the IBM Displaywriter System work station. Service personnel
using this manual must have completed the student education course. This manual
is in ten sections.
The Introduction section summarizes the IBM Displaywriter System. The compo-
nents and features are introduced.
The Operating Instructions section provides an overview of basic operator proce-
dures and activities. Future IBM Licensed Program releases could change the
function of the Displaywriter System. The operator's reference material should
be used for more specific information.
The 25-Line and Large Displays and the Keyboard sections contain operational
theory, service information, adjustments, and removal/replacement procedures.
The Electronics/Power Supply section describes the function of the major compo-
nents of this module and removal/replacement procedures.
The Diskette section contains operational theory, service information, adjust-
ments, and removal/replacement procedures for the Type 1 Drive and the Type 2D
drive (high density/two sided read/write function). The Type 1 Drive is shown
when
the part illustrated is not affected by the differences in the drives.
The Cables/Connectors/Test Points section contains cable and connector test
points, AC wiring diagrams, flow charts, figures showing component locations and
the system grounding schematic. The diskette AC wiring diagrams show the phys-
ical location of the grounds for these voltages.
The Diagnostic section describes the tests and utilities available to aid in
servicing the system and identifying failing components in the system. The dis-
play formats and the printed-outputs are controlled by the software and may dif-
fer from the formats actually displayed. The formats and outputs shown in this
section are samples only.
The Intermittent Problem Diagnostic Approach section is a guide to aid service
personnel in solving intermittent system problems.
Preface iii

iv IBM Displaywriter Product Support t-lanual

CONTENTS
Chapter 1. Introduction 1-1
Display Station 1-1
Work Station 1-2
Work Station Data Flow 1-2
Diskette Unit ~-2
Diskettes 1-2
Printers 1-3
Optional Paper Feed Assemblies 1-3
Mag Card Unit 1-4
Chapter 2. Operating Instructions 2-1
Display Formats 2-2
Status Lines 2-2
Scale Line 2-3
Typing and Menu Area 2-3
Prompt Line 2-4
Message Line 2-4
Keyboard Operation 2-4
Work Station Control Keys 2-5
Alphanumeric Keys 2-5
Function Control Keys 2-6
Cursor Movement Keys 2-7
Keyboard Arrangements 2-8
Menu Description 2-8
Menu Format 2-8
Margins and Tabs 2-9
Keyboard and Printer Description 2-10
Menu Sequence - Typing Tasks 2-11
Menu Sequence - Work Diskette Tasks 2-12
Menu Sequence -Program Diskette Tasks 2-13
Menu Sequence - Spelling Tasks 2-14
Menu Sequence -Change Format (CHG FMT) Key 2-15
Menu. Sequence - Request (REQST) Key 2-16
Menu Sequence - Instructions 2-17
Chapter 3. 25-Line Display 3-1
25-Line Display Operational Theory 3-1
Character Structure 3-2
25-Line Display Fonts 3-5
Operating Voltages 3-6
Input Signals 3-7
25-Line Display Service Aids 3-7
25-Line Display Removal/Replacement 3-8
Chapter 4. Large Display 4-1
Locator 4-1
Large Display Operational Theory 4-2
Cabling 4-3
Data Flow 4-4
Contents v

Character Structure 4-5
Operating Voltages 4-5
Internal Distribution Cable 4-7
Input Signals 4-8
Large Display Service Information 4-9
CRT Anode Discharge Procedure 4-10
Service Aids 4-11
Display Indicators 4-12
Large Display Adjustments 4-13
Image Size Adjustment 4-13
Image Centering Adjustment 4-14
Large Display Removals/Replacements 4-15
Large Display Module Removal 4-15
Rear Cover Removal 4-16
Display Analog Card Removal 4-17
Low Voltage Power Supply Removal 4-18
High Voltage Power Supply Removal 4-19
Mainframe Assembly and Front Cover Removal 4-20
Chapter 5. Keyboard 5-'
Locator 5-1
Keyboard Operational Theory 5-2
Type A Key Modules 5-4
Keyboard Electronics 5-5
Basic Assurance Test (BAT) 5-8
Character Buffer 5-8
Keyboard Identification (ID) 5-8
Key Position 5-9
Code Key 5-10
Enter Key 5-10
Keyboard Speakers 5-10
Keyboard Arrangement Option 5-11
ASCII Code Set 5-13
Keyboard Logic Card 5-14
Keyboard Service Aids 5-15
Tools and Equipment 5-15
Cleaning Procedures 5-15
Adjustments 5-16
Shift Lock Brake Adjustment (Type A only) 5-16
Removals/Replacements 5-17
Keyboard Cover (Type A & B) 5-17
Pad Card (Type A only) 5-18
Key Module (Type A only) 5-19
Fly Plate Replacement (Type A only) 5-20
Shift-Lock Mechanism (Type A only) 5-21
Spacebar Mechanism (Type A only) 5-21
Chapter 6. System Electronics/Power Supply 6-'
Locator 6-1
System Electronics/Power Supply Theory 6-2
System Card 6-3
System Bus 6-3
Microprocessor 6-4
Read Only Storage (ROS) 6-5
vi IBM Displaywriter Product Support Manual

Interrupt Controller 6-5
Keyboard Adapter 6-6
Direct Memory Access (DMA) 6-6
Timer 6-6
Printer Data Link 6-6
Memory Cards 6-6
Program Memory Requirements 6-7
Diskette Adapter Card 6-7
Display Adapter Card 6-8
Printer Sharing Card 6-9
Power Supply Theory 6-11
Power on Reset 6-14
Removal Procedures 6-15
Cover Removal 6-15
Electronic Card(s) Removal 6-16
Distribution Board Removal 6-17
Power Supply Removal 6-18
Chapter 7. Diskette Unit 7-'
Locator 7-1
Diskette Unit Theory 7-2
Diskette Theory 7-3
Diskette Handling 7-4
Motor and Drive 7-6
Hub Drive and Collet 7-8
LED/PTX 7-9
Head Load 7-10
Read/Write Head 7-11
Stepper Motor -Head Carriage Assembly 7-12
Diskette Adapter Card 7-14
File Control Card 7-15
Power/Signal Distribution 7-19
Error Sensing 7-20
Dual Drive 7-22
Service Aid 7-23
Special Tools 7-23
Adjustments 7-24
Operator Handle Adjustment, Collet/Flat Spring Adjustment Check 7-24
Solenoid and Bail Adjustment 7-26
Stepper Drive Band Adjustment 7-28
Head Carriage Adjustment 7-30
Removals/Replacements 7-32
Cover Removal 7-32
Head Load Bail Removal 7-32
Collet/Flat Spring Removal 7-33
Right Diskette Drive Removal 7-34
Diskette Guide Assembly Removal 7-35
Head Load Arm Pad Removal/Replacement 7-36
Bail Solenoid and Idler Removal 7-37
LED and PTX/File Control Card Removal 7-38
Diskette Adapter Card Removal 7-39
Head/Carriage Assembly Removal (Type 1 and Type 2D Drive) 7-40
Pulley and Drive Band Removal 7-40
Drive Band Replacement 7-41
Contents vii

Stepper Motor Removal 7·41
AC Drive Motor Capacitor Removal 7~42
AC Drive Motor Removal 7-44
AC Drive Motor Replacement 7-44
Chapter 8. Cables/Connectors/Test Points 8-1
Power Supply 8-7
Electronics Module 8-10
Light Emitting Diode (LED) Board 8-18
Printer 8-18
Mag Card Unit 8-19
Communications Connectors 8-19
25-Line Display Module 8-21
Large Display 8-22
Diskette Unit 8-28
Printer Sharing 8-40
Type A Keyboard Module 8-41
Type B Keyboard Module 8-42
Chapter 9. Diagnostics 9-1
Diagnostics Theory 9-1
Resident Diagnostics Description 9-1
Power On Reset (POR) 9-2
Basic Assurance Test (BAT) 9-2
BAT Before Display Initialization 9-4
BAT After Display Initialization 9-5
BAT Progress/Error Codes 9-5
Resident Non-Automatic (RNA) Diagnostics 9-7
Resident Non-Automatic Diagnostic Display Format 9-9
RNA Diagnostic Tests and Functions 9-10
Loadable Diagnostics 9-13
Loadable Diagnostics Display Format 9-18
Loadable Diagnostics Keyboard Functions 9-20
Loadable Diagnostics Function Selection 9-20
Map Diagnostic Integration (MDI) 9-21
MDI Entry 9-21
MDI Function 9-21
MDI Device Selection Menu 9-22
MDI Run Time Options 9-22
MDI Test Unit Menu Numbering 9-23
MDI Run Time Options Menu - Stop On Options 9-23
Trace Display 9-23
MDI Display Typing Area or Menu Area 9-24
MDI Prompt Responses 9-24
MDI Prompts 9-25
Loadable Utilities 9-28
Error Log Utility Group 9-29
System Error Log 9-30
Error Log Dump Procedure 9-32
Diskette Unit (6360) Head Alignment Compatibility Check 9-32
Field Engineering Service Number/Release Version Modification (FESN/RVM) 9-33
System Exerciser 9-33
Load Program Function 9-34
Maintenance Analysis Procedures (MAPs) 9-35
viii IBM Displaywriter Product Support Manual

MAP Format 9-35
Problem Determination Procedures (PDP) 9-38
Chapter 10. I ntermittent Problem Diagnostic Approach 10-1
Introduction 10-1
Data Collection 10-1
Instructions 10-1
Problem Isolation 10-2
Section 1. Keyboard Isolation 10-4
Section 2. Display Isolation 10-5
Section 3. Electronic Module Isolation 10-6
Section 4. Diskette Unit Isolation 10-7
Section 5. 5215 Printer Isolation 10-9
Section 6. 5218 Printer Isolation 10-10
Section 7. Printer Sharing Isolation 10-11
Section 7a. 3277 Device Emulation 10-12
Section 7b. Port 0 and Port 1 Features 10-12
Section 8. Power Supply Isolation 10-13
Section 9. Isolation Undetermined 10-14
Section 10. Software/Operator Procedures 10-15
Section 11. Environment 10-16
Questions 10-16
Recommendation 10-17
Section 12. History Build 10-18
Section 13. Service Request Numbers 10-19
Section 14. BAT Failures 10-21
Pre-CRT Initialization BAT Failures 10-21
Post-CRT Initialization BAT Failures 10-21
Section 15. Diskette RNA Test Failure Codes 10-22
Drive Set Ready Test (L) 10-22
Stepper Motor Phase Test (M) 10-22
Track Step Test (T) 10-22
Section 16. Guidelines for Error Log Interpretation 10-23
Section 17. Trace Table Usage 10-25
Glossary X-l
Contents ix

x IBM Displaywriter Product Support Manual

CHAPTER 1. INTRODUCTION
The IBM Displaywriter System is a mod-
ular family of word processing pro-
ducts. The available modules include
a display module, an electronics mod-
ule, a diskette unit, a keyboard mod-
ule, a printer, and a Mag Card unit.
DISPLAY STATION
A display module, an electronics mod-
ule, and a keyboard module make up a
display station in the system config-
uration.
• The display module is available in
two sizes:
A 25-Line Display which can
contain up to 80 characters
per line
A Large Display (66-Lines)
which can contain up to 100
characters per line.
I
25 -Line
Display Module
Figure 1-1. IBM Displaywriter System
•
•
The display
electronics
positioned
operator
is attached to the
module and can be
to the needs of the
The electronics module contains
the electronics needed to operate
the display and the keyboard.
Included in the electronics module
are the power supply and at least
128 K bytes of internal (working)
memory.
The
keyboard module has either 92
or 96 alphanumeric characters and
has various character
arrangements. The keyboard is
connected to the electronics mod-
ule by a cable which permits
keyboard movement for operator
comfort.
Chapter 1. Introduction 1-1

WORK STATION
When a diskette unit is added to a
display station, it becomes a work
station.
The diskette unit is cable connected
to the electronics module and contains
the diskette adapter card and the
diskette drive mechanism. The
diskette unit is controlled by the
electronics module and receives its
power from the electronics module or
the large display.
Optional features can be contained in,
or connected to, either the electron-
ics module or the diskette unit.
Work Station Data Flow
The operator controls the system and
inputs data by using the keyboard
which is connected to the electronics
module.
The electronics module arranges and
distributes the input data to the dis-
play module, and the diskette unit
(Figure 1-2).
The display module is cable connected
to and installed on top of the elec-
tronics module. The display module
provides video feedback to the opera-
tor.
The diskette unit is used to read data
from the diskette or write data on the
diskette through the electronics mod-
ule.
Read/Write
Diskette ..... _----~~
Unit
Input
Electr;onics
Module
Keyboard Module
Figure 1-2. Work Station Data Flow
DISKETTE UNIT
Two types of diskette drives can be
used in the diskette unit. The Type 1
diskette drive can read/record infor-
mation on an IBM Diskette 1
(one-sided) only. The Type 2D
diskette drive can read/record infor-
mation on both the IBM Diskette 1 and
Diskette 2D (two-sided).
Diskettes
The Type 1 diskette (one-sided
diskette) can hold up to 284,000 bytes
of usable information. The Type 2D
diskette is a high density, two-sided
diskette. The Type 2D diskette can
hold up to 985,000 bytes by storing
the information on both sides of the
diskette.
1-2 IBM Displaywriter Product Support Manual

PRINTERS
Several printers can be used with the
IBM Displaywriter workstation
• The IBM "Selectric" Element Print-
er (Figure 1-3) is cable connected
to the electronics module and can
be used by only one work station.
The printer's rated burst speed is
up to 15.5 characters per second
(CPS) .
Figure 1-3. "Selectric"
Printer
Element
• Two bi-directiona1 printwheel
printers (Figure 1-4) also provide
hard copy output for the
Displaywriter work station. These
cable connected printers can be
shared by up to three work
stations. The printwheel printers
have rated burst speeds of up to
40 CPS and 60 CPS.
Figure 1-4. Printwheel Printer (With
Optional Tractor Feeq)
OPTIONAL PAPER FEED ASSEMBLIES
Two optional paper feed assemblies can
be installed on the printwheel print-
ers.
• The Tractor-feed attachment feeds
continuous forms into the printer
(Figure 1-4).
• The
Sheet-Feed Paper Handler is a
two-tray paper handler which holds
up to 400 sheets of paper (200
sheets per tray). It feeds and
stacks individual sheets of paper
(Figure 1-5).
Figure 1-5. Sheet Feed Paper Handler
Chapter 1. Introduction 1-3

MAG CARD UN IT
The Mag Card Unit is cable connected
to the electronics module and permits
the reading and the recording of mag-
netic cards (Figure 1-6).
Figure 1-6. Mag Card Unit
Note: The printers, the optional
paper feed assemblies, and· the Mag
Card Unit are not discussed in this
manual. They are included for infor-
mation only, and their service theory
will be covered in other manuals.
1-4 IBM Displaywriter Product Support Manual

CHAPTER 2. OPERATING INSTRUCTIONS
This section explains some of the bas-
ic operations of the IBM Displaywriter
System. This is not a complete opera-
tor manual. If further information is
needed, refer to the operator's refer-
ence information.
Two types of diskettes: (1) work
diskettes and (2) program diskettes,
are used to perform operator applica-
tions. Documents are stored on work
diskettes, and program diskettes con-
tain the various licenced programs
that permi t the operators to perform
various tasks.
After the system successfully com-
pletes the Basic Assurance Test (BAT),
the IBM logo is displayed. The system
is now ready to accept a program that
is stored on the program diskette.
When the information on the program
diskette is loaded, the system per-
forms an Initial Program Load (IPL),
and the TASK SELECTION Menu is dis-
played.
A task may be either a typing task, a
work
diskette task, a program diskette
task or a spelling task. All tasks to
be perform~d are selected from the
TASK SELECTION Menu. For example,
typing tasks are selected to create or
revise documents, and work diskette
tasks are selected to delete docu-
ments or change document names. The
task is loaded when the operator
selects the task and presses the ENTER
key.
All documents are created from the
keyboard, and all menu selections are
entered from the keyboard by typing
the choice and pressing the ENTER key.
The display permits the operator to
see documents as they are created or
revised and to see the selections
available in the menus. Format
instruction codes, such as Center and
Word Underline, also display when the
cursor is under them. Prompts and
messages help the operator perform
multi-step procedures such as COPY.
The buttons on the printer control
panel turn on power, and start, stop,
or cancel a print operation. The mar-
gins, line spacing and pitch formats
are selected at the keyboard and are
controlled by the system during print-
ing.
Chapter 2. Operating Instructions 2-1

DISPLAY FORMATS
Status Li nes 1 ABC
2 DIE I FIG I H I I I J
Scale Line <<..:,.: .. ~.1. . ..:...: .. ...:,..2 •. ~.: •• ..:...3 .. ..:..: •. ~.4 .. ..!.,.: •• ..!.,.5. ',,!,,': .• ~.6 •• ..:...: .• ..:...7 .. ..:..: .. ..:...8
Typing and
Menu Area
Prompt Line
Message Line
Fig~re 2-1. Display Formats
This section describes the five areas
of the display:
•
Status Lines
•
Scale Line
•
Typing and Menu Area
• Prompt
Line
• Message
Line.
Statu s Lines
The two status lines have information
about the current task. (See
Figure 2-1.) The first status line
gives information about the following
fields:
A Context Field. Displays the
current function being performed.
For example, when the COPY func-
tion is entered, the words "Copy
Text" display in this area.
2-2 IBM Displaywriter Product Support Manual
B Document
Name Field. Displays
the name of the document being
created or revised.
C Audit Window Field. Displays
the names of codes when they are
cursored in text. For example,
when the cursor is under a Word
Underline instruction in the typ-
ing area, WORD UND is displayed.
The second status line shows seven
fields.
D Diskette Name Left Drive
Field. Displays the name of the
diskette loaded in the left slot.
E Diskette Name Right Drive
Field. Displays the name of the
diskette loaded in the right slot
of a Dual Diskette Unit.

Temporary Left Margin
<0( .6 .... : .... 3 .... 0 .... 4' ... : .... 5 .... : .... 6 ..... :.».7 .... : .... 8
\ -~ -\ -~ - - -- '\ --
Left Tabs Cursor Position Center Point Right
Margin Margin
Figure 2-2. Scale Line
F Communication Status Field.
Displays information when in the
communications mode.
G
Page Number Field. Displays
the page number of the document
page being created or revised.
H Line Number Field. Displays
the number of the line that the
cursor
begins
paper.
is
at
on.
the
Line numbering
top edge of the
I Keyboard Number Field. Dis-
plays the ID number of the key-
board in use.
J Pitch Field. Displays the
pitch (10, 11, 12, or 15) of the
typestyle in use. The propor-
tional space mode is 11 pitch.
Scale Line
The scale line (Figure 2-2) displays
when a document is being created or
revised. It shows the margins, the
temporary left margin, the tabs, the
center point, and the cursor position
in effect for the cursored line. The
cursor position is represented by a
highlighted scale line position. When
typing text in the proportional space
mode, the cursor character position in
text may not match the cursor position
on the scale line.
Typing and Menu Area
This area displays the menus or the
text being created or revised. The
cursor also displays in this area and
appears as a brighter underline. When
it is under a character position, that
character is brighter.
The cursor can be moved to any charac-
ter in the document by using the cur-
sor movement keys on the keyboard. It
can also be moved to an area of the
display where there are no characters.
An example would be to move the cursor
past the carrier return on the writing
line. This cursor placement causes
the system to prompt that it is a
non-keying area, and keyboard entry is
inhibited until the cursor is moved
back to a character in the document.
In the menus, the cursor is usually on
the prompt line and moves only when
text is inserted by typing or removed
by backspacing.
Line length is the space between the
left and right margins and can be up
to 255 characters. Segmenting dis-
plays lines longer than the 80 charac-
ter width of the display by moving the
text horizontally through the display.
Segmenting occurs when the cursor is
moved past the first or last character
position on the writing line.
Long document pages t~at do not fit on
the screen can be displayed by scroll-
ing. Scrolling moves the text verti-
cally through the display. Attempting
to move the cursor past the upper or
Chapter 2. Operating Instructions 2-3

Group 1
Group 2
Figure 2-3. Displaywriter Keyboard
lower typing area boundaries will move
the text through the display.
Prompt Line
The system uses the prompt line to
indicate an action must be taken (ex-
ample: inserting a diskette) , or to
guide the operator through functions
one step at a time. When a prompt
appears, the cursor moves to the
prompt line so the operator can type
the proper response. The prompt line
is brighter than the other displayed
lines.
Message Li ne
The system uses the message line to
indicate the status of tasks (example:
a print job completion), printer
needs, or when an error occurs. The
system can hold up to six messages.
Group' 3'
Group 4
Pres sing the Mes sage (MSG) key when
the ==> symbol appears on the message
line displays the oldest waiting mes-
sage. Pressing the MSG key again will
clear the message being displayed and
display the next message, if any.
KEYBOARD OPERATION
The operator uses the four groups of
keys on the keyboard (Figure 2-3) when
typing documents, printing documents
or selecting menus. The "Alphanumeric
Keys (Group
2) provide the standard
upper and lower case characters, sym-
bols and numbers.
The Cursor Movement Keys (Group 4)
provide control of cursor movement and
some text functions. The Function
Control Keys (Group 3) and the Work
Station Control Keys (Group 1) provide
system functions and permit menu
selections.
2-4 IBM Displaywriter Product Support Manual

Many of the keys on the keyboard pro-
vide additional operations when they
are pressed while holding down the
CODE key. Most special keys have the
additional operation name printed on
the front of them.
Work Station Control Keys
1. REQST (Request). Displays addi-
tional operations that can be used
during a task.
2. CANCL (Cancel). Cancels oper-
ations and clears prompts.
3. END. Ends a task.
4. PRINT. Prints the page currently
displayed on the screen in the
Create or Revise Document task.
5. KYB CRG (Keyboard Change). Per-
mi ts the oper a tor to change the
keyboard arrangement.
6. MSG (Message). Displays messages
when the => symbol is displayed
and clears messages that are dis-
played.
7. REPLY. Clears insert diskette
messages.
4
w----7
Figure 2-4. Work Station Control Keys
(Group
1)
Alphanumeric Keys
1. TAB. Moves the cursor to the next
tab setting.
2. REQD TAB (Required Tab). Sets up
an indented (temporary) left mar-
gin.
3. CODE. Provides additional func-
tions when used with keys that
have names printed on the front of
them.
4. CTR (Center). Centers text around
the cursor position.
5. SPACEBAR.
Adds one character
space to the text.
6. REQUIRED (Required Space). Pre-
vents words from being separated
on two different lines.
7. 1/2 t (Superscript). Moves text
up one-half line.
8. 1/2 , (Subscript). Moves text
down one-half line.
Chapter 2. Operating Instructions 2-5

Figure 2-5. Alphanumeric Keys (Group 2)
9. BEGIN UND (Begin Underline).
Marks the beginning of text to be
underlined.
10. END UND (End Underline). Marks
the end of text to be underlined.
11. WORD UND (Word Underline). Under-
lines the previous word.
12. STOP. Inserts a stop code at the
cursor position.
13. ENTER. Causes the system to per-
form tasks and functions.
14. BKSP (Backspace). Moves the cur-
sor one character position to the
left and deletes the previous
character.
15. REQD BKSP (Required Backspace).
Moves the cursor and print positon
one character position to the left
without deleting characters.
16. RETURN (Carrier Return). Ends the
current line and moves the cursor
and print position to the begin-
ning of the next line.
17. INDEX. Moves the cursor and print
position to the next line with no
horizontal movement.
Function Control Keys
1. DEL (Delete). Permits the opera-
tor to delete text from a
document.
2. MOVE. Permits the operator to
move text to another place in the
document, removing it from the
original location~
3. COPY. Permits the operator to
copy text and put it in another
place in the document while leav-
ing it in the original location.
4. LINE ADJ (Line Adjust). Permits
the operator to make a line ending
decision on the line of a document
where the cursor is currently
located.
5. SPELL. Compares the spelling of
words in a document against the
dictionary on the program
diskette. When used with the FIND
key, it locates words video
reversed by the Spelling task that
need checking.
2-6 IBM Displaywriter Product Support ~lanual