Texas Instruments 770 User manual

f
J \ Operating lnst"ructio"9
far
. t
--
-'
----
----
tE---
---
I
DATA TERMINAL
MANUAL NO. 993023-9701
ORIGINAL ISSUE 30 JUNE 1977
INCLUDES
CHANGE 1 . .
... 1 JANUARY 1979
TEXAS INSTRUMENTS
INCORPORATED
--

•
INTRODUCTION
You are about to learn how to operate the Texas Instruments Model 770 Intelligent Data
Terminal.
Even if you have no previous experience in data processing or data terminal
operation, you should find the Model
no easy to learn and S1m'ple to operate.
Operating the Model 770
is, in fact, very similar to operating a standard electrictypewriter.
Differences between the
two are not theactionsthatyou -:-the operator-will take, but w_hat
the 770 does in response to your actions. Forinstance, whenyoutypeonthekeyboard of the
770, the key strokes are converted toelectronicsignalsthatin addition to beingdisplayedon
thescreen
or printed for you to see locally, mayalsoberecordedonmagnetictapecartridges
for later recall and use,
as well as transmitted over communicationJines to be received and
printed
or viewed by other operators or even computers.
Butthat is
not all -the 770 alsohastheability to tellyouwhen to enter (or type) information,
what information
to enter, and onceyou have completed the entry, whether or not thereare
any errors in the information that you have entered. That is
how the 770 got the name
"Intelligent Data Terminal"!
ABOUT THIS MANUAL
A~ you continue your familiarization with the Model no, you will primarily be interested in
Sections
I, 11, and Ill ofthis manual: Familiarizationwiththe770, Operatingthe770, andCare
and Cleaning.
If other equipment is to be used with the no, then Appendix E - Attaching
External Equipment -should be studied.
A~endix D - Installation is included primarily as reference material for those people who
unpick and complete initial installation of theequipment. Additional reference information
is also provided in the remaining Appendix sections.

TABLE OF CONTENTS
sectior1 I. Familiarization With The no
Paragraph Page No.
Introducing the
770 ................................................ 1
Locating the Controls·
............................................... 1
Attaching the Power Cord ........................•................... 3
Switching Power On and
Off .......................................... 3
Adjusting Brightness
of Video Display ................................... 3
Using the Data Cartridges
............................................ 3
Loading Paper
.........................................•.......... 5
Locating the Keyboard and indicators
................................... 8
Typewriter Keyboard . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Shift and Upper Case Lock Keys
....................................... 9
Enter, Char, Field, and Tab Skip Keys
.................................. 10
Control,
ESC, and Return Keys ..............•........................ 10
Numeric Keypad
................................................. 11
Function Keys ....................................•......•....... 11
Special Operation Keys ............................................. 11
Printer Control _Keys .............................•.............. 11
Repeat Key . . . . . . . . . . . . . . . . . ............................... 12
Erase Field, Erase Input, Ins Char, and Del Char Keys
.................... 12
Cursor Control Keys
..•.......................•.............•... 12
Indicators . . . . . . . . . . . . . • • • • . . . . . . . • • . . . . . . . . • • • . . . . . . . . . . . . . . . . . 13
Section II. Operating The no
An Introduction . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . 14
Data Entry and Error Correction
....................................... 14
How to
Begi.n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ~
Start-Up Procedure .....•...................................... 15
How to Enter Data in a Field .•.................................... 16
How to Enter Data in a Form
...................................... 24
Moving Around ............................................ 26
Editing ..•............................................... 27
Terminating ............................................... 27
Terminal Command Mode ........................................... 29
Understanding Files and Programs
................................. 29
How to Use Terminal Command Mode
............................... 32
What You Can Do in Terminal Command Mode ........................ 35
Set Time and Date .......................................... 35
Start a Program ............................................ 36
Stop a Program
............................................ 37
Restart a Program ...........................•............... 38
Load a Program
............................................ 38
Program Status ............................................ 39
Delete a Program . . . . . . . . . . . . . . . . . . . . . . . .
................... 40
System Clear . . . . . . . . . . . . . . . . . . . . . . . ....................... 41
ii

\
Section Ill. Care and Cleaning
Cleaning the Video Display Screen .................................... 43
Cleaning the Tape Unit Head ........................................ 43
Cleaning the Outside Surfaces ....................................... 44
Cleaning the Thermal Printhead ....................•................. 44
Adjusting Thermal Printer Contrast .................................... 44
Appendix A. Terminal Command Mode -Reference
Appendix B. Terminal Command Mode -
System Error Messages
Appendix C. Specifications
Appendix D. Installation
Space Requirements ............................................... 51
Terminal Assembly ........ ~ ....................................... 51
Initial Power Application ...................•....•..•......•......... 52
Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Thermal Printer Test ............................................... 54
Appendix E. Attaching External Equipment
Appendix F. Cable Pin Assignments
Appendix G. Keyboard Graphics and Control Characters
Appendix
H. Keyboard Cross Reference
-Unlabeled Characters Generation
iii

LIST OF ILLUSTRATIONS
Figure No. Title Page No.
1-1 Model 770 Intelligent Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
1-2 Terminal Front View ...................................... 2
1-3 Terminal Rear View
....................................... 2
1-4 Data Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1-5 Cartridge Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1-6 Cartridge Seating
........................................ 4
1-7 Cartridge Removal
....................................... 4
1-8 Cartridge Write Protect Tab
................................. 5
.
3-1 Tape Unit Head Cleaning ................................. 43
3-2 Print Contrast Adjustment ................................. 45
C-1 Terminal Dimensions .................................... 50
D-1 Terminal Base Unit ...................................... 51
D-2 Self Test Patterns ....................................... 53
E-1 Terminal Communications Ports ............................ 56
E-2 Configuration Cable Connections ........................... 57
G-1 Control Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
G-2 Graphic Characters ...................................... 65
LIST OF TABLES
Table No. Title Page No.
Terminal Command Mode Error Messages ..................... 47
C-1 Terminal Specifications ................................... 49
E-1 Option to Configuration Cross Reference ...................... 55
F-1 103/113 Data Set Cable P/N 993204-0001 ...................... 59
F-2 202/212 Data Set Cable P/N 993205-0001 . . . . . . . . . . . . . . . . . . . . . . 59
F-3 201/801 Data Set Cable P/N 993206-0001 ...................... 60
F-4 CBS1001F Coupler (DAA) Cable P/N 993207-0001 ................ 60
F-5 Leased-Line Cable P/N 993208-0001 .......................... 61
F-6 Data Terminal Cable P/N 993210-0001 ........................ 62
F-7 MC 810 Cable P/N 993230-0001 ............................. 63
iv

TAPE UNIT
NO. 1
WITHOUT
·THERMAL
PRINTER
TAPE
UNIT
NO. 1
WITH
THERMAL
PRINTER
/
Figure 1-1. Model no Intelligent Tennlnals
vi
VIDEO DISPLAY
TAPE UNIT
N0.2
VIDEO DISPLAY
KEYBOARD

SECTION I
FAMILIARIZATION
WITH THE 770
Introducing the 770
The Model 770 terminal thatyou will beoperating lookslikeone of thetwo terminalsdepicted
in Figure 1-1. You will want
to be familiar with the major parts of the terminal. Here is an
introduction.
Either type terminal,
as you can see, includes the following major parts:
• Keyboard -The keyboard is very similar
to the keyboard of a standardtypewri!er.
You will type on
it in essentially thesame way you would type on a typewriter
keyboard.
• Video Display-When you
type onthekeyboard of the 770, thecharactersyoutype
will normally appear before you on the screen
of the video display. Also,
messages
for you to read and instructions·for you will appear here.
• Two Tape Units -These two units are used in conjunction with DataCartridges to
save information that may be needed for use at a later time. The operation is
very similar
to recording sound on a tape recorder and playing it back later.
You,
as an operator, will primarily be concerned with the installation and
removal
of the data cartridges used with the tape units. You may want to note
for later reference that:
Tape Unit No. 1 is on the left side as you face the video display, and is
sometimes referenced
as CTG 1.
Tape Unit No. 2 is on the right side as you face the video display and is
sometimes referenced
as CTG2.
Some 770's are equipped with an additional part:
• Thermal Printer -The
printer is normally used to obtainapermanentrecord of the
information displayed on the video display screen.
Now that you have been introduced to the major parts of the 770, let's take a little more in-
depth look at the terminal.
Locating the Controls
The main controls for the terminal are shown in Figures 1-2 and 1-3.

TAPE CARTRIDGE
EJECT BUTTON
BRIGHTNESS CONTROL
TAPE CARTRIDGE EJECT BUTTON
THERMAL PRINTER CONTRAST
ADJUSTMENT
ADJUSTS THE BRIGHTNESS
OF THE VIDEO DISPLAY.
RELEASES THE TAPE CARTRIDGE
FROM THE TRANSPORT TO
ALLOW REMOVAL BY HAND.
ADJUSTS CONTRAST OF THE
THERMAL PRINTER.
Figure 1-2. Terminal Front View
POWER SWITCH
TURNS TERMINAL ON AND OFF.
PROTECTS TERMINAL FROM DAMAGE
BRIGHTNESS
CONTROL
THERMAL
PRINTER
CONTRAST
ADJUSTMENT
POWER SWITCH
AC
LINE FUSE
AC
LINE FUSE
COMMUNICATION PORTS
POWER
CONNECTOR
CAUSED BY DRAWING EXCESSIVE CURRENT.
TERMINAL CONNECTION POINT FOR
PERIPHERAL DEVICES.
CONNECTION POINT FOR POWER CORD.
Figure 1-3. Terminal Rear View
2