Teletype Basic KSR Operating instructions

e
the 113 teleprinter
T.M .
TELETYPE
, InrI:'
REPAIR MANUAL
for BASIC TERMINALS
without an Internal Data Set

© 1978 by Teletype Corporation
All rights reserved
Printed
in U.S.A.

REP AIR MANUAL 391
The 43 TELEPRINTER REPAIR MANUAL
Comments concerning
content, usability, and adequacy of this manual will
be welcomed. This sheet may be removed and mailed directly to Teletype
Corporation. This
sheet may also be used for ordering additional copies of
this manual.
Comments
to:
Order manuals from:
Mail To:
Teletype Corporation
5555 Touhy Avenue
Skokie,
IL 60076
Dept. 3212
Dept. 2181-3

The 43 TELEPRINTER
REPAIR MANUAL
INTRODUCTION
REPAIR MANUAL 391
Issue 1, April 1978
This manual provides complete repair information for 43 Basic Teleprinter
Terminals without an internal data set (modem) and major components.
The manual is intended for field or shop use and is arranged into various
parts
that include repair, servicing and how to operate instructions for the
43 Basic KSR and RO Sprocket or Friction Feed Teleprinters, with an EIA
interface or a TTL interface. Manual 369 provides complete servicing
information for all versions of the Basic 43 Teleprinter.
All replaceable
components are identified in the manual along with disas-
sembly,
adjustments and troubleshooting information. Waveforms are
included
on wiring diagrams and charts are provided for additional trouble
isolation using an oscilliscope or volt-ohmmeter. No specially designed tools
or shop facilities are required for repair operations, however standard 43
teleprinter terminals or components or local strapping may be required to
perform or simulate on-line and interface testing when the teleprinter is not
installed on location.
The
43 Teleprinter Circuit Diagram, Manual 385, provides circuit informa-
tion extracted from this manual. The component layouts, lead designations
and schematic diagrams for each circuit are combined into single fold-out
sheets for the convenience of field or shop personnel when repairing major
components.
The task flow chart on the next page illustrates the intended repair or
servicing activities and the associated manual parts.
Spare units and parts for repair are available from Teletype Corporation.
Service personnel should be properly trained and have access to these spares
before
attempting service or repair of the 43 Teleprinter. Contact Teletype
Corporation Technical Training Center, 312-982-3940, for courses available
on 43 Teleprinters.

PART 8
PART 9
PART 10
PART 11
The 43 TELEPRINTER REP AIR MANUAL
TABLE OF CONTENTS
PART 1
PART 2
PART 3
PART 4
PART 5
PART 6
PART 7
TESTING
TROUBLESHOOTING
DISASSEMBL
Y AND REASSEMBLY
CIRCUIT DESCRIPTION AND DIAGRAMS
ADJUSTMENTS AND SPRING TENSIONS
PARTS AND UNIT CODES
PACKING AND MARKING
SUPPLEMENTAL MANUALS INCLUDED
KSR INSTALLATION AND ROUTINE SERVICING MANUAL 368 Issue 3
RO INSTALLATION AND ROUTINE SERVICINGMANUAL 373 Issue 2
KSR HOW TO OPERATE MANUAL 367 Issue 2
RO HOW TO OPERATE MANUAL 372 Issue 2

TASK FLOW CHART
+
" !
DISASSEMBLY
AND
REASSEMBLY
PART 3
r
......
~
INTRODUCTION
"
TESTING
" +
I
I
I
REPAIR MANUAL 391
PART 1
TROUBLESHOOTING (Isolation and Correction)
PART 2
l
":
+
" !
CIRCUIT
DESCRIPTIONS
AND
DIAGRAMS
ADJUSTMENTS
AND SPRING
TENSIONS
PART 4
PACKING AND
MARKING
PART 5
STATION INSTALLATION
AND
VARIABLE FEATURES
"
ROUTINE MAINTENANCE
AND LUBRICATION
,r
.4 ~
STATION OPERATION
{
~
" I
I
PARTS AND
UNIT CODES
PART 6
KSR Installation
and Servicing
Manual 368
RO Installation
and Servicing
Manual 373
KSR How to Operate
Manual 367
RO How to Operate
Manual 372
PART 7
PART 8
PART 9
PART 10
PART 11

MANUAL 391,1-1
PART 1- TESTING
CONTENTS PAGE
1.
GENERAL ....................
1
2.
TEST EQUIPMENT .............
2
3.
KSR TESTING .................
3
OFF-LINE TESTS ...............
3
VARIABLE FEATURES
CHECKOUT ...................
12
A. Loopback Mode ............ 12
B. Variable Features Checkout ... 12
4.
RO TESTING .................. 15
OFF-LINE TESTS ...............
15
VARIABLE FEATURES
CHECKOUT ................... 20
A. Loopback Mode ............ 20
B. Variable Features Checkout
20
1. GENERAL
1.01 This part provides testing requirements
and procedures for the 43 Basic KSR and
RO Teleprinter.
1.02 The information in this part is intended to
determine if th~ terminal and its compo-
nents are operating properly and will continue to
operate for extended periods under normal oper-
ating conditions.
1.03 Endurance, environmental extreme or
electrical parameter testing information is
not provided in this part. This type of information
is found to some extent in Part 2, Troubleshooting
and is used to isolate and correct troubles indicated
in
this part.
1.04 The testing information provided herein
should
normally be used to determine if:
(a) A repaired
teleprinter is operating properly
before being returned to a customer or
placed in service.
(b) A questionable
component installed in the
teleprinter operates properly or requires
repair.
(c) A questionable teleprinter, in service
or
received from a customer, is operating
properly or requires repair.
1.05 Following installation or routine mainten-
ance calls
at a location, either the testing in
this part or an installation checkout using the
HTO manual should be performed to make sure
the teleprinter is operational.
1.06 On trouble calls, a local test or a trouble
verification test under the direction of a
test station (if available) should be performed to
isolate the trouble within or to the teleprinter.
After correction of a trouble, the test may be
confined to the specific area that was failing.
1.07 The checkout routines are presented in
table form with test conditions arranged
in a specific sequence. A response is given
to
verify the test condition has passed.
1.08 Always perform the tests in the order
given. The test steps are based on satis-
factory results of all previous steps.
1.09 If the indicated response is not obtained
in any step of a test procedure, repeat the
step to make sure that the procedure has been
performed properly. If the results are still unsatis-
factory, refer to Page 2-1, Troubleshooting.
1.10 Teleprinters with TAUs or with no Ter-
minal
Data Unit must be associated with
locally developed external testing arrangements
and procedures to perform actual On-Line Tests.
If test station is remote, a copy of the testing
procedure should be available at the test station.
Note: The local tests specified in this part simu-
late most on-line tests for these teleprinters.
--1.11 Before an on-line test can be performed,
the remote testing station must be pro-
vided with advance details
about the teleprinter
under test, such as, telephone number, type of
terminal (KSR or RO) (friction or sprocket)
option exceptions present, speed, etc.

391, 1-2
1.12 Before proceeding with the checkout
procedure, check the following:
(a) Is
teleprinter connected to a properly
grounded and polarized ac outlet?
(b) Are all cable connectors fully seated?
(c) Are
printer paper and ribbon properly
installed?
(d) Are
any option exceptions present? Refer
to Manuals 368 (KSR) and 373 (RO),
Page 2-1.
(Part 8 or 9)
Procedures in Off-Line Tests are based on standard
factory furnished options being present. If option
exceptions are present, the test response will be
as shown in the KSR or RO Variable Features
Checkout.
1.13 All references to columns are after a one-
second delay,
to allow the print head to
index two character spaces to the right. The print
head indicates the next character position to be
printed.
2. TEST EQUIPMENT
2.01 Off-Line
and Variable Feature Test pro-
cedures are provided
to simulate On-Line
Tests where external communication test devices
are
not available. To perform these tests, the
connector terminals, as follows, should be strapped
before proceeding with the tests. The remaining
terminals should
be connected or measured as
specified
during the test steps.
Note: Contact Teletype Corporation Sales
Department, 312-982-2000, for availability of
a 43 Teleprinter Interface Test Box, which pro-
vides
both arrangements shown as follows:
EIA INTERFACE
TTL INTERFACE
:S
SEND DATA
~~
RECEIVE DAT,&
RECEIVE DATA SEND DATA
5 CLEAR TO SEND
.:
TERMINAL READY
6 DATA SET READY f
DATA TERM READY DATA READY
25)
ANALOG LOOP V +5V Use
volt
7)
GND
11)
·12V
meter.
4)
REQUEST TO SEND
1~
+12V (Indica-
~
GND
tors pro-
1)
DIGITAL LOOP vided
on
3)
ANALOG LOOP
Test
6)
REQUEST TO SEND
box.)
2.02 A 43 KSR Operator Console, 43K101/
CAA or CAB can be substituted in RO
Teleprinters to perform tests and variable feature
checks off-line when external communication test
devices are not available for on-line operation.
2.03 A volt-ohmmeter or equivalent means to
measure ±12volts and +5volts and perform
continuity checks is required.

3. KSR TESTING
OFF-LINE TESTS
TEST
Power
On/Off
Printer
Option
431.a.
432.a.
STEP
1.
2.
3.
TABLE A
OFF-LINE TEST PROCEDURES
PROCEDURE
ON
t
OFF
(Rear View)
~PRINT HEAD MARKER
I 10 ~
"PRINT INDICATOR SCALE
Hold PRINTER TEST key depressed until
approximately eight lines are printed.
MANUAL 391,1-3
RESPONSE
Print head returns to the
left-hand margin.
Paper feeds to next line.
TERM READY (AUTO
ANSW) turns on.
Print head marker points to
first mark on indicator
scale.
ALARM
and LOCAL
(LOCAL-TALK)
turn on.
Characters
printed as in
Fig. 1. (Refer to Options
431 and 432b and c for
any exceptions.)
Bell rings
at end of each
line. (Right-Hand Margin
and Test Message.)
Note 1: First line may start with any character for sprocket or friction feed printers.
~nopqrstuvwxyZ{: } ....
• ".tX&/().+,-.IOt23456789:;<=>!@ABCDEF6HIJKLMNOPDRSTUVUXYZ(\]h_'abcdefghiJklMnopqrstuvwxyz{ }N
• ".tX&'()*+,-.IOt23456789:;<=>?@ABCDEFGHIJKlHNOPURSTUVUXYZ[\)'_'abcdefghiJklMnopqrstuvwxyz{ }H
• ".tX&'()*+,-.IOt23456789:;<=>!@ABCDEF6HIJKLHNOPDRSTUVUXYZ[\]'_'abcdefghijklMnopqrstuvwxyz{ }P
• "'$X&'().+,-.I0123456789:;<=>?@ABCDEF6HIJKLHNOPDRSTUVUXYZ(\]h_'abcdefghijklMnopqrstuvwxyz{ }H
• ".tX&'().+,-.IOt23456789:;<=>?@ABCDEF6HIJKLHNOPGRSTUVUXYZ[\]h_'abcdefghijklMnopqrstuywxyz{ }H
• "'$X&'()*+,-.IOt23456789:;<=>?@ABCDEF6HIJKLMNOPGRSTUVUXYZ[\]h_'abcdefghijklMnopqrstuvwxyz{ }N
• "ItX&'().+,-.IOt23456789:;<=>?@ABCDEF6HIJKlMNOPGRSTUVUXYZ[\]A_'abcdefghijklMnopqrstuvwxyz{ }N
• "'$%&'().+,-.IOt23456789:;<=>?@ABCDEF6HIJKLMNOPDRSTUVUXYZ[\]h_'abcdefghijklMnopqrstuvwxyz{ }N
Sprocket Feed - 13 Characters per inch
See
Note 1. Note 2: The lower case "0"
/ does not print on 80 character line.
"tllVW>:YZ{:}" \
• '"I.X&'().+,-./01234567891;<=>?@ABCDEFGHIJKlHNOPQRSTUVUXYZC\J~_'abcdefghiJkl"~
pqrstuyw)(yz{I}"
• ~"I.X"().+,-.I0123456789:;<=>"ABCDEFGHIJKlHNOPQRSTUVUXYZC\]h_'abcdefghiJkl"n
pqrstuywxyz{!}"
• !"N.X&'()*+,-./0123456789:;<=)?IABCDEFGHIJKlHNOPQRSTUVUXYZC\JA_'abcdefghijkl"n
pqrstllYW)(Yz{:}"
• !"N.%&~()*+,-./Ot23456789:;<=)?@ABCDEFGHIJKlHNOpaRSTUVUXYZ(\JA_'~bcdefghijkl"n
pqrstllYWXYz{:}-"'
Friction Feed -10 Characters per inch
Fig. 1

391, 1-4
KSR OFF-LINE TEST (Cont)
TEST STEP
Printer
4.
(Cont)
Operator
5.
Console
6.
TEST STEP
Operator
7.
Console
(Cont)
8.
9.
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
Release PRINTER TEST key.
Hold CTRL
key depressed and depress RETURN
key.
Place CAPS LOCK key in DOWN position.
Starting with top row and moving from left
to right, depress unshaded keys in Fig. 2.
RESPONSE
ALARM turns off.
Character printing stops.
Print head is returned to
left-hand margin and paper
feeds
to next line.
Characters
printed as in
Fig. 3.
Fig. 2
1234567890-+'OWERTYUIOP=\ASDFGHJKL;~{ZXCVBNM,.1
Fig. 3
'1 23456?890-+ ···qwer'tyuiop:=\asdf'3hjkl;·· {z;.:cvbnf"l, .1
Fig. 4
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
Depress RETURN and then LINE FEED key.
Depress
and release CAPS LOCK key so it returns
to UP position. Starting with top row and moving
left
to right, depress each unshaded key in Fig. 2.
Depress RETURN and
then LINE FEED key.
RESPONSE
Print
head is returned to
left-hand margin and paper
feeds to next line.
Characters
printed as in
Fig. 4.
Print head returns to left-
hand margin and paper feeds
to next line.

TEST STEP
Operator 10.
Console
(Cont)
TEST STEP
Operator
II.
Console
(Cont)
12.
13.
14.
15.
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
Hold left SHIFT key depressed and starting with
top row and moving from left to right, depress
each unshaded key in Fig. 5. Hold right SHIFT key
depressed and depress rn key.
Fig. 5
! @#$:.~ ;" (~:t: ( ) ... ] .... 1:· [ : : II }<> '?'f
Fig. 6
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
Depress RETURN and then LINE FEED key.
Hold CTRL key depressed and depress ~ S~B ~
key.
Hold CTRL key depressed and depress ~ "ilL ~
key.
Hold CTRL key depressed and depress rn
key. H
Depress SPACE BAR.
lV1ANUAL 391, 1-5
RESPONSE
Characters printed as in
Fig. 6.
RESPONSE
Print head returns
to left-
hand margin and paper
feeds
to next line.
SUB prints 8
Signal bell rings.
Print head moves one
character position to the
left.
Print head moves one
character position to the
right.

391,1-6
KSR OFF-LINE TESTS (Cont)
TEST
Operator
Console
(Cont)
Cover
Inter-
lock
Right
Margin
and
Signal
Bell
Margin
Set and
Clear
(Remem-
ber
Lower
Case)
STEP
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
Depress BACK SPACE key.
Depress LINE FEED key.
Depress
and hold REPT and rn keys.
Depress TERM READY (AUTO ANSW) key.
Raise cover.
Close cover.
Depress RETURN and
the LINE FEED key.
Space
print head to column 125 (sprocket feed).
(See
1.13)
Space print head to column 73 (friction feed).
Depress
~ ""Ii' ~ key.
Depress SPACE BAR six times.
Depress SPACE BAR
two times.
Depress ESC
and then ~ c~ ~ key. (ESCx)
Depress SPACE BAR nine times.
Depress ESC and
then rn key.
(ESCL lower case.) L
RESPONSE
Print
head moves one
character position to the
left.
Paper feeds to next line.
The k
is printed until end
of line is reached.
, Signal bell rings at end of
line.
TERM READY (AUTO
ANSW) goes off. LOCAL
(LOCAL-TALK) and
ALARM turns on.
ALARM goes off.
Print head returns to left-
hand margin
and paper
feeds to next line.
Signal bell operates as
character b
is being
printed.
Signal bell does
not oper-
ate. Print head moves six
character positions
to the
right.
Signal bell operates
two
times.
Print head returns to
left-hand margin and indi-
cates beginning
of line.
Print head moves to
Column 10.

TEST
STEP
Margin 26.
Set and
Clear
(Cont)
27.
28.
29.
30.
3l.
TABLE A (Cont)
OFF-LINE
TEST PROCEDURES
PROCEDURE
Space print head to Column 5l.
Depress ESC and then ~ D~2 ~ key. (ESCr)
Depress RETURN key.
Depress BACK SPACE key.
Space
print head to Column 50.
Depress SPACE BAR.
Depress SPACE BAR.
Depress ESC and then mkey (ESCm)·
Depress SPACE BAR four times.
Depress ESC and then ~ EJ: ~ key (ESCw).
MANUAL 391, 1-7
RESPONSE
Print head returns to left
margin (Column 10).
Signal bell rings.
Signal bell operates.
Print head indicates Column
5l.
Signal bell rings.
Print head remains at
Column 5l.
Print head moves to
Column 55.
Print head returns to left-
hand margin (Column 10)
and paper feeds to next line.
Turn off POWER switch and connect the test arrangement shown on Page 1-2 to the interface connector
before proceeding to Step 32.
If the 43 Teleprinter Interface Test Box is available, connect the test box to the teleprinter interface
connector (TTL or EIA). See instructions furnished with test box.
TEST
STEP
Loopback 32.
~---
32.a.
TABLE A (Cont)
OFF-LINE
TEST PROCEDURES
PROCEDURE
Place
teleprinter in loopback mode: Perform 32 a
or 32 b.
1------------------
EIA INTERFACE - Connect Carrier Detect to Data
Term Ready.
Turn on Teleprinter POWER switch.
RESPONSE
1----------
Print head is returned to
left-hand margin. Paper
feeds to next line. DATA
turns on.
EIA INTERFACE
CONNECTOR
+ 12 V will be present on
pin4 (Issue 2A Logic Card)
GND will be
present on
pin 7.

391, 1-8
KSR OFF-LINE TESTS (Cont)
TEST
STEP
Loopback
32.b.
(Cont)
----
Option
33.
434.a.
34.
----
Option
35.
433.a.
----
36.
37.
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
TTL INTERFACE - Connect Terminal Ready to
Data Ready.
Measure
continuity between pins 6 and 9 on TTL
interface connector.
Tum on Teleprinter POWER switch.
Depress and release PARITY key to UP position
(PARITY ON).
Place DUPLEX
key in UP position (HALF-
DUPLEX).
Place CAPS LOCK key in DOWN position.
Type the following:
ANALOG
Depress SPACE BAR.
Place DUPLEX key.in DOWN position (FULL
DUPLEX).
Type
the following:
TEST
Watch TERM READY (AUTO ANSW) key, then
hold CTRL key depressed and depress ~ E~T ~ key.
Depress
INTRPT key.
Hold CTRL
key depressed and depress RETURN
key.
RESPONSE
Print head is returned to
left-hand margin. Paper
feeds to next line. Meter
should read 0
ohms
(Issue 2A Logic Card).
DATA turns on.
INTERFACE CONNECTOR
+5 V dc will be present on
pin 7.
-12 V
dc will be present on
pin II.
+ 12 V dc will be present on
pin 13.
GND will
be present on pin
9.
AANNAALLOOGG is
printed. (Refer to Option
434b for any exceptions).
TEST is printed.
DATA and TERM READY
(AUTO ANSW) indicators
flash as EOT key
is
depressed. (Refer to Option
433b for any exceptions.)
INTRPT turns on
momentarily.
Signal bell rings.
Print head does not return.

TEST
Loopback
(Cont)
Option
435.a.
Option
435.a.
Low
Paper
(Friction
Feed)
Paper-Out
(Sprocket
Feed)
STEP
38.
39.
40.
41.
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
Depress RETURN and then LINE FEED key.
Depress REPT
and K keys.
Hold
down until two lines of Ks are printed.
(Check time to print line.)
Place CPS key in DOWN position. (10 CPS.)
Depress REPT and K keys.
Hold
down until two lines of Ks are printed.
(Check time to print line.)
Remove
the paper -paper-out (sprocket feed).
Lift paper roll from
paper support -(friction
feed).
Watch DATA key
and depress LINE FEED
key eight times.
MANUAL
391, 1-9
RESPONSE
Continuous Ks will be
printed across entire new
line.
Bell rings
at end of line and
automatic return and line
feed will
be performed. One
printed line plus return will
occur in approximately:
4 seconds (sprocket feed)
2.5 seconds (friction feed)
(Refer
to Option 435b
for any exceptions.)
Continuous
Ks will be
printed across entire line.
Bell rings
at end of line
and automatic return and
line feed will be performed.
One printed line plus return
will occur in approximately:
14 seconds (sprocket feed)
8.5 seconds (friction feed)
First
part of second line
(approximately
18 char-
acters) will
be printed at a
faster
rate of speed.
(Refer
to Option 435b for
any exceptions.)
Signal Bell rings (sprocket
feed only).
Alarm
turns on.
S:Qrocket Feed
DATA
turns off. LOCAL
(LOCAL-TALK)
turns on
as 8th LINE FEED is
received.
Friction Feed
DATA remains
on. LOCAL
(LOCAL-TALK) remains
off.

391,1-10
KSR OFF-LINE TESTS (Cont)
TEST STEP
Low
42.
Paper
(Friction
Feed)
Paper-Out
(Sprocket
Feed)
(Cont)
43.
44.
Loopback
45.a.
Clear
----
45.b.
Analog 46.
Loop
47.
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
Depress TERM READY (AUTO ANSW) key.
Replace the paper.
Depress DATA key.
EIA INTERFACE - Disconnect strap between
Data Term Ready and Carrier Detect.
------------------
TTL INTERFACE - Disconnect strap between
Data Ready and Terminal Ready.
I
-
Depress ESC key.
Hold SHIFT key depressed and depressIT] key.
Depress ESC key and then m key.
RESPONSE
SQrocket
Feed
DATA remains off.
LOCAL (LOCAL-TALK)
remains on.
Friction Feed
DA TA turns off.
LOCAL (LOCAL-TALK)
turns on.
Alarm turns off.
DATA turns on.
LOCAL (LOCAL-TALK)
turns off.
TERM READY (AUTO
ANSW) turns on.
DATA turns off.
ALARM flashes
EIA INTERFACE
CONNECTOR
DATA turns on. TERM
READY (AUTO ANSW)
turns off.
+12 V will be present on
interface pin 25 (Analog
Loop).
TTL INTERFACE
CONNECTOR
oV will be present on TTL
interface pin 3 (Analog
Loop).
ALARM turns off.
EIA INTERFACE
CONNECTOR
DATA turns off.
TERM READY
(AUTO ANSW) turns on.
-12 V will be present on
interface pin 25 (Analog
Loop).
TTL INTERFACE
+5 V dc will be present on
interface pin 3 (Analog
Loop).

TEST
STEP
Digital 48.
Loop
49.
Low
50.
Paper
(Friction
Feed)
Paper-Out
(Sprocket
Feed)
51.
52.
53.
TABLE A (Cont)
OFF-LINE TEST PROCEDURES
PROCEDURE
TTL INTERFACE -Depress ESC key.
Hold SHIFT key depressed and depress rn key
TTL INTERFACE -Depress ESC key
then mkey.
Sprocket Feed -Remove paper.
Friction Feed - Lift paper roll from paper roll
support.
~
Depress TERM READY (AUTO ANSW) key.
Replace
the paper.
Place CPS key in UP position (30 CPS)
Place DUPLEX
key in UP position (HALF-
DUPLEX).
MANUAL 391, 1-11
RESPONSE
oV will be present on TTL
interface pin 1 (Digital
Loop).
+5 V dc will be present on
TTL interface pin 1
(Digital
Loop).
Signal bell rings (sprocket
feed only).
TERM
READY (AUTO
ANSW)
turns off.
LOCAL (LOCAL-TALK)
and ALARM turn on.
TERM READY (AUTO
ANSW) remains off.
LOCAL (LOCAL-TALK)
and ALARM remain on.
ALARM turns off.
This completes the OFF-LINE test of the 43 KSR Teleprinter. Use local procedures and arrangements for
ON-LINE testing.

391,1-12
KSR VARIABLE FEATURES CHECKOUT
3.01
The procedures in Tables Band C verify
proper operation of variable features
exceptions only.
The features as furnished from
A. Loopback Mode
the factory are checked in the Off-Line Tests in
Table A.
3.02 Off-line checkout of Options 433b, 434b,
and 435b will require placing
the tele-
printer into the loopback mode (see Table B).
TABLE B
LOOPBACK MODE PROCEDURES
PROCEDURE RESPONSE
EIA INTERF ACE -Connect the test arrangement Print head returns
to left-hand margin.
shown
on Page 1-2 to the interface connector. Printer performs one line feed.
Connect Carrier Detect to Data Term Ready. DATA
turns on.
Turn
on Teleprinter POWER switch.
TTL INTERF ACE -Connect the test arrangement
shown
on Page 1-2 to the interface connector.
Connect Terminal Ready to Data Ready.
Tum on Teleprinter POWER switch.
B. Variable Features Checkout
TABLE C
VARIABLE FEATURES CHECKOUT PROCEDURES
CHECK PROCEDURE RESPONSE
Option
Depress and hold PRINTER TEST key. Characters printed as in Fig. 6.
431.b. Bell sounds
at end of each line.
and c.
(Option 431.b.)
• !",.%&,()*+,-./J'234567B9:;<=>T@ABCDEFGHIJKLHN~PGRSTUVUXYZ[\J!!'abCdefghijkl~nOpqrstuvwXYZ{:}N
(Option 431.c.) + f H
• !"It%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLHNIPQRSTUVUXYZ[\J •• 'abcdefghijkl~nopqrstuvwxY2{:}N
Fig. 6-Printer Test Message

MANUAL 391, 1-13
TABLE C (Cont)
VARIABLE FEATURES CHECKOUT PROCEDURES
CHECK PROCEDURE RESPONSE
Option
Depress and hold PRINTER TEST key. Line length will
be:
432.b.
432 b - 72 characters
andc.
432 c - 80 characters
Characters
printed as in Fig. 7.
Bell sounds
at end of each line.
Note: The lower case "g" does
not print on 72 character lines.
*(Option 432.b.) /
• !"'.ZI~C)*+,-.I0123456789:;<=>!'ABCDEFGHIJKLHNOPQRSTUVUXYZ[\]A_ 'abedef
hijkl"nopqrstuvwxyz{I}N
• !"'.ZI'C)*+,-.I0123456789:;<=>!@ABCDEFGHIJKLHNOPQRSTUVUXYZ[\]~_'abedef
hijkl"nopqrstuvwxyz{l}" Note:
The lower case "0" does
*(Option 432.c.) not print on 80 character lines.
• !"'.ZI'C)*+,-.I0123456789:;<=>!@ABCDEFGHIJKLHNOPORSTUVUXYZ[\]A_'abcdefghijklMn
'
pqrstuvwxyz{I}N
• !"'.Z&'C)*+,-.I0123456789:;<=>!@ABCDEFGHIJKLHNOPORSTUVUXYZ[\]h_'abcdefghijklMn
pqrstuvwxyz{l}"
*Sprocket Feed (13 characters per inch), Friction Feed (10 characters per inch)
Fig.
7-Printer Test Message
TABLE C (Cont)
VARIABLE FEATURES CHECKOUT PROCEDURES
CHECK PROCEDURE RESPONSE
Option
Place teleprinter in loopback mode.
433.b.
Depress DUPLEX key to DOWN
position (FULL DUPLEX).
Depress the following keys:
ABC Printer will
print ABC.
Hold CTRL key depressed and
DATA remains on (does not flash).
depress
ij EgT ~ key.
TFiRM READY (AUTO ANSW) remains
off (does not flash) as EOT key is
depressed.

391,1-14
TABLE C (Cont)
VARIABLE FEATURES CHECKOUT PROCEDURES
CHECK
PROCEDURE
RESPONSE
Option
Place teleprinter in loopback mode.
434.b. Depress DUPLEX key to DOWN
position (FULL DUPLEX).
Printer will print:
•• Rrr. TE.T
Depress and release PARITY key to UP
position (PARITY ON).
Place CAPS LOCK
key in DOWN
posiiton. Depress the following keys:
PARITY TEST
Option
Place teleprinter in loopback mode.
Characters will be printed until end
435.b.
Place DUPLEX key in DOWN position
of line is reached.
(FULL DUPLEX).
Automatic return and line feed will
not be performed.
Depress REPT and K keys. Bell will
sound continuously until
Hold down until end of line is reached.
keys are released.
Note: Options 433, 434, and 435 -Depress LOCAL (LOCAL-TALK) key to terminate checkout pro-
cedure.
Disconnect Interface Test Arrangement if present.