Control Data Corporation CDC 722-10 Owner's manual

...
&l c:\ CONT"OL DATA
\!:I r::J CO~OR(\TION
62940003
CDC® 7 22-10/20 DISPLAY TERMINAL
CC628-A
HARDWARE MAINTENANCE MANUAL
(SITE INFORMATION)

REVISION
A
(10-01-80)
B
(11-25-80)
C
(11-26-80)
D
(01-21-81)
E
(02-11-81 )
F
(04-07-81)
G
(05-07-81)
H
(06-01-81)
J
(06-25-81)
K
(07-06-81)
L
(09-18-81)
Publication No.
~?q4()()()1
REVISION RECORD
DESCRiPiiON
Manual released. Includes changes per ECO 14104,
14037, 14147, 14241, 14257, and 14262.
Interim change to incorporate ECO 14353.
Manual revised to incorporate ECO 14353 in its final
form.
Manual revised to incorporate procedure changes, to
provide a switch setting record, and to update
spare parts list per ECO's 14294, 14401, and 14431.
Interim change to incorporate ECOs 14461
r
14503, and
and
14530. Also adds appendix B.
Manual revi~ed to incorporate ECO 14530 in its .final
form and to make editorial and technical corrections.
Interim change - manual revised to incorporate
ECO 14675.
Manual revised to incorporate ECO 14675 in its final
form.
Interim change - manual revised to incorporate
ECO 14640.
Interim change - manual revised to incorporate
ECO 14753.
Manual revised to incorporate ECO 14761 and finalize
ECO's 14640 and 14753.
01989-2
Address comments concerning this
manual to.
REVISION LETIERS I, 0, Q AND X ARE NOT USED
Control Data Corporation
Technical Publ ications Deportment
2401 North Fairview Avenue
St. Paul, Minnesota 55113
.... ... ,,, .....
'.
/---...,.
f .
\
,~.... ,- ,.'
or use Comment Sheet in the back (--"
of this manual.
© 1980, 1981
by Control Data Corporation
Printed in the United States of America
~ii
----_._----_._--_._._---_. __ ._---

,.--. ,
lJ
/~"
('
, \
\ .:
--/
MANUAL TO EQUIPMENT LEVEL CORRELATION SHEET
This manual reflects the equipment configurations listed below.
EXPLANATION: Locate the equipment type and series number, as shown on 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 log, then this manual accurately reflects the equipment.
EQUIPMENT TYPE
SERIES
WITH FCO'S
COMMENTS
CC628-A
01
02
14353
--
All units reworked to series
05
03
by ECO 14530
04 I
05
-
ECO
14675
only
(SIN
1016)
06 -
ECO
14640
only
(SIN
1550)
07
1475"3
ECO
14753
07 - ECO
14671
only
(SIN 2601)
08
01987
62940003 L
iii/iv

\ ..
\
\...
:~,
1
\ .......

LIST OF EFFECTIVE PAGES
lAS,
• 5 -a
UI
USM; ·1 • H, He "3'#"5' if 'CAS g-i 'PRS' rj' taw rea·sag
.e DR
it
(. 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
Cover
Title
Page
ii
thru vi
vii/viii
ix
and
x
xi/xii
1-1
1-2
1-3
2-1
2-2
'.
2-3
2-4
2-5
2-6
2-7
and
2-8
2-9
3-1
thru
3-4
3-5
3-6
3-7
thru
3-9
4-1
4-2
5-1
thru 5-4
5-5
5-6
5-7
5-8
5-9
5-10/5-11
62940003 L
REV
-
-
L
H
F
D
G
A
F
L
G
A
K
C
K
A
H
A
F
G
H
A
D
A
K
F
E
D
G
C
PAGE
REV
PAGE
REV
5A-1/5A-2
A
5A-3
F
5A-4/5A-5
A
5B-1
A
5B-2
D
5B-3
A
5B-4/5B-5
D
5B-6/5B-7
A
5B-8/5B-9
D
5B-10
thru
58-12 K
5B-13
thru
5B-16
E
5B-17/5B-18
A
6-1
A
6-2
and
6-3
L
A-I
K
A-2
D
B-1
thru B-4
H
Comment
Sheet. L
Mailer
-
Back Cover
-
02092-IA
v/vi
------------------------------------_ .• _--_ .. _ .. _._---_ .. _,-----_.

\"""

/
I
\,- .. /'
"--"
I .
i
"-.j
PREFACE
This manual provides information to aid in the installation,
checkout, and on-site maintenance of the CDC@ 722-10/20
Display Terminal. It is assumed that the customer engineer has
knowledge of basic terminal operations and use of common
maintenance tools and test equipment.
Information is organized under the following section headings:
Section
1 -
General
Description
Section
2 -
Operation
Section
3 -
Installation
and
Checkout
Section
4
Diagrams
Section
5 - Maintenance
section 5A - SAM Listings
Section 5B - Maintenance Procedures
Section 6 - Parts Data
Appendix A - Special Cables for Use with Terminal
Appendix B - Generating Commands in Advanced/752 Mode
Other manuals providing reference and component level mainte-
nance information on the terminal are listed as follows. All
manuals may be ordered from:
Control Data Corporation
Literature and Distribution Services
308 North Dale Street
St. Paul, Minnesota 55103
't~t~e
722-10/20 Display Terminal Reference Manual
722-10/20 Display Terminal Operators Guide/
Installation Instructions
722-10/20 Display Terminal Hardware Maintenance
Manual (Support Information)
62940003 H
Publication
Number
-~",-,,~~,,"">-b->-
62940001
62940002
62940004
vii/viii

,r-"""',
I
\
~
'- .. -.-
•
,.'

,.,.-'
/
1.
2.
3.
CONTENTS
GENERAL DESCRIPTION
Physical Description • . •
Functional Description • •
Equipment Specifications •
OPERATION
. . . . . . . 1-1
• 1-2
• • • . 1-3
Operating Controls and Switches •••.••••. 2-1
Power On/Off Switch. •....••••• • 2-2
Circuit Breaker (CBl) • • •• ••. • • 2-2
Vol tage Select Swi tch • • • • . 2-2
Brightness Control . •• .•• ••.• 2···2
TEXT/NORMAL Switch •••••••••••••••• 2-2
Open Connections . • • •• ••• •••. 2-3
Shorted Connections • • • • • • • • • • 2-3
Control Switches .• • • . • . • • • . • •. . 2-3
DATA RATE SELECT S\>litches . . • • • • •. • 2-3
PAR EVEN/PAR ODD Switch . . . • .• •• 2-3
ROLL/PAGE Swi tch • • • • • • • • 2-4
FULL DUP /HALF DUP Swi tch • • • • • • . •. . 2-5
ON LINE/LOCAL Switch •••••••••••. _ • 2-5
MANUAL RELEASE Switch • • . • •• ••••• 2-5
Mode Select Switches •• • _ • . • • • _ • 2-5
NORMAL/TRANSPARENT Switch •••.••• 2-6
NORMAL/DATA ONLY Switch ••.••• __ • • 2-6
PARITY ENABLE/PARITY DISABLE Switch •••. 2-6
1 STOP BIT/2 STOP BITS Switch • •• •• 2-7
NORMAL/AUTO LF Switch • • . • . • . • • .• 2-7
DISABLE BELL/EOL BELL Switch • • •• • _ •• 2-7
RTS CONSTANT/RTS SWITCHED Switch • • • •• • 2-8
DTR CONSTANT/DTR SWITCHED Switch •••••••• 2-8
60 HZ REFRESH/50 HZ REFRESH Swi tch • • ••• 2-8
Keyboard Functions • . • • •• •• 2-8
Keyboard Indicators • _ • _ .••• _ • • • • 2-9
INSTALLATION AND CHECKOUT
Packaging • • • • • • • • • • • •
Installation •••••••••
Installation Requirements • • .
Installation Instructions •
Checkout • • • e _ • • • • • •
• • 3-1
• • • _ 3-1
• • • • 3-1
• • • • 3-4
• _ • • 3-8
4. DIAGRAMS
Interconnection Diagram, (Viking TTY Display Terminal
50/60 Hz) • • • • • • • • •• ••••••••• 4-2
62940003 F ix

5.
MAINTENANCE
~-..,
General
Maintenance
Information
· · · · · · ·
5-1
Suggested Emergency Maintenance
Procedure
· · ·
5-1
Before
Leaving For Customer
Site
· · · ·
5-2
Upon
Arriving
At Customer
Site
· · · · · · · · ·
5-2
Safety
Precautions
· · · · · · · · · · · · · ·
5-3
Maintenance
Tools and
Materials
· · · · · · · · · ·
5-3
MOS
Circuit-Handling
Precautions
· · · · ·
5-3
Maintenance Aids
· · · · · · · · · · · · · · ·
5-4
Location
of
Major Assemblies
· · · · ·
5-4
Internal Controls and Fuses
· · · · · · · ·
5-4
Monitor
PC Board
· · · · · · · · · ·
5-4
Yoke
Assembly
· · · · · · · · · · · · · · ·
5-6
Logic/Power Supply Board
· · · · · · · ·
5-6
Diagnostic
and Corrective Maintenance
· ·
5-6
Diagnostic
Self-Test
Routines
· · · · · · ·
5-7
Power-On
Test
· · · · · · · · · · · · ·
5-7
System
Level
Test
· · · · · · · · · · ·
5-7
Transparent
Mode Test
· · · · · · ·
5-8
I
~
Explanation of SAM
Format
· · · · · · · · · · · · ·
5-10
"
Organization of
SAMs
and Procedures
· · · · · · · ·
5-11
SAM
CRTl
Power Fault Isolation
· · · · · ·
5A-l
SAM
CRT2 Moni tor/Control Problems
· · · · · · · · · 5A-3
SAM
CRT3
Diagnostic
Sel f-Test
Errors
· · · · · 5A-5
Procedure CRTl -
Power
Application/Removal
·
5B-l
Procedure
CRT2
-Hood
Removal/Replacement
·
5B-l
Procedure CRT3
-
Video
Adjustments
· · · · ·
5B-2
Procedure CRT4
- Monitor
PC
Board Replacement
·
5B-4
I/~'
Procedure CRT5 Yoke Replacement
· · ·
5B-6
Procedure CRT6
- High-Voltage Assembly
"--'/
Replacemen t · · · · · · · · · · · · ·
5B-7
Procedure
CRT7
- CRT Replacement
· · · · · · · ·
5B-8
Procedure CRT8
-
Logic/Power-Supply
Board
Replacement
· · · · · · · · · · · · · · · · ·
5B-10
Procedure CRT9
-
Keyboard
Assembly Replacement
·
5B-12
Procedure
CRT10 - BRIGHTNESS Control
Checks/
Replacement
· · · · · · · · · · · · · · · · ·
5B-13
Procedure
CRTll
-Swi tch-Panel
Assembly
.. -~
Replacement
· · · · · · · · · · · · · · ·
5B-14
' .. --
Procedure
CRT12 -
Keyboard Swi tch Module
Replacement
· · • · · · · · · · · • · · ·
5B-15
Procedure
CRT13 -
AC
Short-Cireui t Isolation
· ·
SB-17
6. PARTS
DATA
Viking
TTY Display
Terminal SPL
· · · · • · · · · · ·
6-2
,,'
APPENDIXES
A. SPECIAL
CABLES
FOR USE
WITH TERMINAL
· · · · · · · · ·
A:... 1
B.
GENERATING COMMANDS
IN ADVANCED/752 MODE
· · · · ·
B-1
I~'
\.
~,
x
62940003
F (
\, ........ _ ....

, FIGURES
1. GENERAL DESCRIPTION
1-1
1-2
Display Terminal • • • • • • • • •
Simplified Terminal Block Diagram . . . . . • •
1-1
• • 1-2
2. OPERATION
3.
2-1 Location of Operating Controls and Switches •• 2-1
2-2 Front Panel Control Switches • • •••• 2-4
2-3 Keyboard Indicators •• • •• • •••••• 2-9
INSTALLATION AND CHECKOUT
3-1 Display Terminal Packaging Instructions • • • • 3-2
3-2 Logic/Power Supply Module Packaging
Instructions • • • • • • . • • • • • • • • . • 3-3
3-3 Front-Panel Switch Setting Record ••••.•• 3-5
3-4 NORMAL/CURRENT LOOP Jumper Location • •• • 3-7
3-5 Cursor Horne Position Jumper Location •••• 3-7
3-6 I/O Connector Locations ••• • • • • • • . • • 3-8
5. MAINTENANCE
5-1
5-2
5-3
5-4
CRTI
CRT2
CRT3
CRT4
CRT5
CRT6
CRT7
CRT8
CRT9
CRTIO
Location of Major Assemblies •.•••••••• 5-5
ROM Character Display Example ••••••. • • 5-9
Switch Panel Test Presentation Order •• 5-10
SAM Example •••••••••••••••••• 5-11
Power On/Off Switch and Hood Mounting Screws •• 5B-l
Moni tor Adj,ustment Controls •••• •••• 5B-4
Monitor PC Board Mounting Details • • • •. 5B-5
Yoke Assembly Details • • • • • • • • • • . • • 5B-7
CRT Replacement Details • • • • • • • • • • • • 5B-9
Logic/Power Supply Board Mounting Details • 58-11
Keyboard Assembly Mounting Details • • . 5B-12
BRIGHTNESS Control Mounting Details • • • • • • 5B-14
Switch Panel Assembly Mounting Details •• • 58-15
Keyboard Switch Module Mounting Details •••• 5B-16
TABLES
1. GENERAL DESCRIPTION
1-1
Equipment Specifications • • • • • • • • • • • • 1-3
62940003 D
xi/xii
----,_ .. _---".- .,------------------------,

\ ......
..

c.
( .
'----
GENERAL DESCRIPTION
This section provides' a brief physical and functional descrip-
tion of the CC628-A Display Terminal including the related
equipment specifications. Refer to the associated manuals
listed in the preface for detailed information.
The terminal provides asynchronous character-by-character
transmission in a manner consistent with teletypewriter
conventions. Communication line coding is compatible with the
CDC@ 752 CRT Display Terminal and also can be set to operate in
advanced (ADV) mode for extended control functions.
PHYSICAL DESCRIPTION
The display terminal, figure 1-1, is a remotely located micro-
processor controlled input/output device. The terminal contains
a 12-inch (diagonal measurement) crt and associated drive elec-
tronics, refresh memory, symbol generation and control logic, an
alphanumeric keyboard, an asynchronous RS-232-C/CCITT V.24
voltage interface, and a 20-mA current-loop interface. The
current loop interface RS232 selection requires internal adjust-
ments requiring a field service engineer. The terminal may be
ordered from the factory configured for either operating mode.
Interface connectors are provided for external communication
with a host processor and a receive-only printer.
(\
'~) Figure 1-1. Display Terminal
r"--"\;
"--) 62940003 G 1-1
1

FUNCTIONAL DESCRIPTION
A simplified block diagram of the terminal is shown in fig-
ure 1-2. The keyboard provides for operator entry of alphanu-
meric characters and terminal function and control codes. All
128 ASCII X3.4 codes, plus 46 code sequences can be generated.
The logic/power-supply module provides the internal timing and
control for display raster generation, character generation,
refresh memory functions, keyboard data encoding, and I/O inter-
face functions. This module also contains the power supply,
rectifiers, and regulators for the various internal dc volt-
ages. The display module is a crt video display device that
uses a raster scan technique to produce a non interlaced horizon-
tal scan of 300/360 lines at a vertical refresh rate of 60/50 Hz.
85 KEY
KEYBOARD
SWITCH
PANEL
03901
1-2
CRT
AND DRIVE
ELECTRONICS
DISPLAY
MODULE
~-------~------------------~
REFRESH
LOGIC
COMMUNICATIONS
CONTROL
INTERFACE
I
LOGIC
RS-232-C
~
OR
CURRENT LOOP
,
PRINTER
REFRESH
-.
INTERFACE
MEMORY
RS-232-C
L ____________________________ J
LOGIC/POWER SUPPLY MODULE
TO HOST
PROCESSOR
(81- DIRECTIONAL)
TO
--
RECEIVE-ONLY
PRINTER
Figure 1-2. Simplified Terminal Block Diagram
62940003
~.
\. -_.'
/~--.....
"
........ _-" ..
I~'
I
...
.... ;'

')
,---"
t·
f )
"'----/
EQUIPMENT SPECIFICATIONS
The equipment specifications for the display terminal are listed
in table 1-1.
TABLE 1-1. EQUIPMENT SPECIFICATIONS
I
I CHARACTERISTIC
SPECIFICATION
I
I-------------------------~-------------
I Dimensions:
I Height
I Width
I Depth
I
I
Weight:
Uncrated
Crated
Power Requirements:
(Nominal)
Temperature:
Operating
Nonoperating
Change/h
Relative Humidity:
Operating
Nonoperating
Change/h
Operating Altitude:
Heat Dissipation (Air):
Display Format:
Display Area:
(Nominal)
Refresh Rate:
Display Memory Size:
Transmission Speeds:
62940003 F
376 mm (14.8 in)
429 mm (16.9 in)
533 mm (21 in)
16.78 kg (37 1b)
19.9 kg (44 1b)
120/220/240 Vac, 50/60 Hz, at
0.6 A (120 V) or 0.3 A
(220/240 V), 70 W maximum
10°C to 40°C (50°F to 104°F)
-40°C to 60°C (-40°F to 140°F)
8°C (lSOF)
20% to 80%
5% to 100%
10%
3000 m (9850 ft) maximum
240 Btu/h (70 W) maximum,
convection cooled
24 lines, SO characters per line
216 mm (S.5 in) wide by
152 mm (6 in) high
50 Hz or 60 Hz, switch selectable
1920 characters
110, 150, 200, 300, 600, 1200,
1800, 2400, 4S00, 9600, and 1 9200
baud; switch selectable
1-3
------------_.,_._.,-------_.,'_ .. _-

.-"',

('
I
\...._--"
OPERATION
This section describes the operating controls and switches,
keyboard functions, and keyboard indicators of the display
terminal. Information on maintenance controls, and related
adjustments is contained in section 5 under the specific
adjustment procedure requiring their use. Internal control
jumpers are described in section 3, Installation.
OPERATING CONTROLS AND SWITCHES
Figures 2-1 and 2-2 show the location of the various operating
controls and switches. The following paragraphs describe their
(~\ basic function. Refer to the terminal reference manual for a
I,,--/~ more detailed description (see preface for publ ication number).
-l' I
./
('
r-
\ '
'----'"
-_.-/
4
_t----
03939-1
('~:, Figure 2-1. Location of Operating Controls and Swi tches
(/', 62940003 L 2-1
2

POWER ON/OFF SWITCH
The power on/off swi tch controls the appl ication of ac input "- .. ,
power to the display terminal. Power is applied by pulling the
switch lever forward (red-orange stripe on switch lever visi-
ble). Power is removed by pushing the switch lever in. Power
application automatically initiates the self-test feature.
CIRCUIT BREAKER (CBl)
Circuit breaker (CBl) provides overload protection for the dis-
play terminal. The circuit breaker is thermally actuated and
when tripped (circuit open) a red plunger is extended. The
circuit breaker is reset by pressing the plunger in.
VOLTAGE SELECT SWITCH
The Voltage Select switch is used to select the appropriate tap
of the power transformer for the ac voltage available at the
site power outlet. The switch has three positions marked 120 V,
220 V, and 240 V. The 120-V position is for primary power
between 104 and 128 Vi the 220-V position for between 191 and
235 Vi and the 240-V position for between 208 and 256 V.After
a snap-in cover is removed, the switch can be set using a
straight slot screwdriver while the terminal is tipped to one
side. The factory setting is 120 V.
BRIGHTNESS CONTROL
The BRIGHTNESS control provides for video intensity adjustment
to compensate for various ambient lighting conditions.
TEST/NORMAL SWITCH
The TEST/NORMAL switch, when positioned to the TEST position,
connects the RS-232-C/CCITT V.24 interface signals together such
that transmitted data is looped back as received data. With the
terminal in online mode, this causes keyboard data to be trans-
ferred to the switch and returned via the receive circuits at
the selected baud rate. Proper operation of the terminal in
half duplex results in two characters being displayed for each
alphanumeric character entered. Operation in full duplex
results in a single character entry. No data transfers to the
modem. Loop test is inoperative if current loop is selected.
2-2
62940003 G
--- ---------------------------- -
(
i
~,
'\ ... -.,.".,'
......., ... '
i~
,
' ......... , ... "

I.,
'_.-
,,'
,---'
( 'I
\ ... ---"
,r--,
[' \
~/
I~'\
\ )
..... __ ./
The TEST position (switch positioned toward rear of terminal) of
this switch alters the modem signal connections as follows:
Open Connector Pins
Send Data (pin 2)
Received Data (pin 3)
Request to Send (pin 4)
Shorted Signal Lines
Send Data to Received Data
Request to Send to Clear to Send
Clear to Send (pin 5)
Data Set Ready (pin 6)
Received Line Signal
Detector (pin 8)
Data Set Ready to Received Line Signal Detector to Data Terminal
Ready
Placing this switch 'to the NORM position (switch positioned
toward front of terminal) restores the signal connections to,
their proper pins.
CONTROL SWITCHES
The various control switches of the display terminal are shown
in figure 2-2. The control functions and operating characteris-
tics established by these switches are as follows:
DATA RATE SELECT Switches
There are four DATA RATE SELECT switches used to select one of
eleven different baud rates noted on the decal.
PAR EVEN/PAR ODD Switch
Placing this switch to the PAR EVEN position causes the display
terminal to generate, and test for, even word parity. position-
ing this switch to PAR ODD causes the display terminal to gener-
ate, and test for, odd word parity.
62940003
2-3

The function of this switch is altered when the PARITY ENABLE/
PARITY DISABLE switch is in the PARITY DISABLE position
(described under Mode Select Switches heading).
NOTE: DATA RATE SWITCHES
SET
FOR 300 BAUD
POWER ON/OFF
OllTa-! SWITCH
Figure 2-2. Front Panel Control Switches
ROLL/PAGE Switch
When this switch is in the ROLL position, the scroll feature is
enabled. When this switch is in the PAGE position, the scroll
feature is disabled. ADV mode operation changes the functions
of this switch and the display terminal remains in scroll mode
unless a scroll disable command is received.
2-4
62940003 K
/' '
,
'- ,"
,r~"
\