Teletype Dataspeed 40 KD Installation instructions

BELL SYSTEM PRACTICES
AT&TCo Standard
SECTION 582-211-700
Issue 3, April 1979
"DATASPEED*" 40 OPERATOR CONSOLES
KD AND RO
DlSASSEMBL
Y/REASSEMBLY, ADJUSTMENT, AND PARTS
CONTENTS PAGE
1. GENERAL. . . . . . . . . . . . . . . . . . . . . 1
TOOLS REQUIRED. . . . . . . . . . . . . . 2
2.
DISASSEMBLy/REASSEMBLy..... 2
KDOPCON..................... 2
A. Rem.oval
.................. .
B. Replacement ............... .
C. Key top Conversions -
40K101 Opcon Only ......... .
D. Major Parts Identification
..... .
E. Disassembly/Reassembly
...... .
2
2
3
4
5
RO OPCON..................... 11
A. Removal and Replacement . . . . . 11
B. Key top Conversions . . . . . . . . . . 11
C. Major Parts Identification. . . . . . 11
D.
Disassembly/Reassembly....... 12
3. ADJUSTMENT. . . . . . . . . . . . . . . . . . 16
COVER TO KEYTOP
ADJUSTMENT........ .......... 16
4. PARTS ......................... 17
NUMERICAL INDEX ............ .
31
1. GENERAL
1.01 This section providesdisassembly/reassem-
bly, adjustment, and parts information
for
the two basic types of DATASPEED 40 operator
consoles (opcon) as shown in Fig. 1. DATASPEED
40
hereafter referred to as 40 type.
1.02 This section is reissued to incorporate
40K203, 40K003, 40K004, and the
latest engineering changes available at this time.
Teletype Change Notice (TCN) information,
*Registered Trademark
of AT&TCo.
where applicable,
is also included. Because this is
a general revision, marginal arrows have been
omitted.
KD Opcon
(With Keyboard)
RO Opcon
(Without Keyboard)
Fig.
1-opcons
1.03 The procedures for opcon removal and
replacement
and key top conversions are
included in this section.
1.04 The extent of the disassembly procedures
is limited
to that which is required for
correction of troubles or replacement of parts in
field locations.
1.05 Disassembly/reassembly procedures are
organized according
to the pictorial
diagrams
of major subassemblies and parts shown
Prepared for American Telephone and Telegraph Company by Teletype Corporation
© 1974,1977 and 1979 by Teletype Corporation
All rights reserved
Printed in U.S.A. Page 1

SECTION 582-211-700
in Fig. 4 and 5. The locations of major subassem-
blies
and parts are identified on the opcons with
references to applicable disassembly procedures.
1.06 Refer to Maintenance Tools Section
570-005-800 for a complete listing of the
various types of hand tools available for mainte-
nance
of TELETYPE ® equipment. For a listing
of the tools required to perform the disassembly
and reassembly of the 40-type opcons, refer to
1.08.
1.07 When ordering replaceable components,
unless otherwise specified, prefix each
part number with the letters "TP" (ie, TP410057).
2. DISASSEMBLY/REASSEMBLY
TOOLS R~QUIRED
1.08 The following tools are recommended for
use during the disassembly and reassembly
procedures:
75765
89954
100982
108285
160396
346257
346260
346392
(TelCo
Provided)
402840
Spring hook -pull
1/4-inch
nut driver
Screwdriver (6-inch
medium)
Long-nose pliers
Retaining ring pliers
Keyswitch
extractor
Key top extractor
Static discharge strap
Soldering iron (low wattage)
Desolderer
Terminal
extractor tool
2.01 Precautions should be taken to assure that the opcon is disassembled and reassembled under clean
conditions. No oil, grease,
or other liquids should be allowed on loose parts, subassemblies, key-
switches,
or the complete opcon.
2.02 Reference in the procedures to left or right, up or down, and top or bottom, etc, refer to the opcon
in its normal operating position.
2.03 When removing a subassembly or part from the opcon, do not force or pry parts to provide the
necessary clearance for removal. No forcing is required to accomplish a removal procedure. Follow
the removal procedure and note how each part is removed and the sequence of its removal so that proper
reassemly can be accomplished. For reassembly, reverse the removal procedure except where different in-
structions are given.
KDOPCON
A. Removal J
To remove KD opcon: .
2.04
@Pull opcon forward to
disengage from cabinet.
<9 Unplug ground stra
(ROP opcon only)
B. Replacement
2.05 To replace KD opcon:
CD Slide left and right latches down.
oHold opcon firmly with left hand,
and with right hand place thumb
on right inward latch tab and press
downward to unlatched position.
G) Place thumb on left inward latch tab of opcon
and press downward to unlatched position.
~;..,...,~--""-..",,---0 Plug ground strap
(ROP opcon only)
o Slide left and right latches
upward into latched position.
Warning: Check that opcon is firmly attached on both sides before releasing hold.
Page 2

ISS 3, SECTION 582-211-700
C. Key top Conversions - 40KI0l Opcon Only
2.06 Key top conversions can easily be performed by substituting certain designated key tops or blocking
key tops without removing the opcon from the set.
2.07 The key top groups that are affected in conversions are shown in Fig. 2. If conversions are made to
directly substitute opcons with different arrangements, the necessary parts can be interchanged
between units.
Conversation Mode
Group
~
~
HIGH
LIGHT FORM
ENTER
Printer Group
PRINT
ON
LINE
PRINT
LOCAL
Full Edit Group
TAB TAB
SET CLEAR
Magnetic Tape
Group
~
~
Fig. 2--Keytop Groups
Expanded Memory
Group
CURSOR
TAB
SCROL SEGMT
UP ADV
SCROL
DOWN
Up-Low Group
Ic::l
L:J
2.08 There are three types of key tops shown in Fig. 3 that are involved in conversions. Refer to Fig. 12
and 13 for part numbers required when key tops must be ordered and stocked to provide these
conversions.
1. Control Key top
(a) Indicator
(Shown)
(b) Nonindicator
2.
Data Key top
3. Blocking Key top
(a) Control
(b) Data
Note: For blocking TAB keys
use
341023 blank key top and
insert 346409 spacer under
the blank key top.
Fig. 3-Keytops
Page 3

SECTION 582-211-700
D. Major Parts Identification
Note 1: To remove a subassembly or individual part, proceed to the paragraph number referenced in
parentheses.
Note 2: The disassembly and reassembly procedures given are for all KD opcons unless otherwise speci-
fied.
401100,401101, OR 346900
401148
SHIPPING
PLATE (2)
COVER
(2.09)
401137 OR 346784
PAN------..;:- .....
(2.10)
SPACEBAR
MECHANISM
(2.19)
410055 OR 410075
INTERFACE
AND BELL CARD t
(2.11)
tThe interface and bell card is not present in late design 40K10l, 40K104, 203 and 40K105 opcons.
Fig.
4-KD Opcon
Page 4

ISS 3, SECTION 582-211-700
E. Disassembly{Reassembly
Warning: To avoidpossible internal damage to circuitry, wear a 346392 static discharge strap connected
to ground to allow static discharge before handling opcon for disassembly and reassembly.
Avoid touching
circuit lands
or components as much as possible. Soldering irons, test, and insertion equipment must be
grounded.
Attach 346392 static discharge
strap tightly
to wrist as shown.
Attach clip end of static discharge
strap to frame ground.
401100 or 401101 Cover
2.09 To remove 401100 or 401101 cover:
Stand opcon upright on back side as shown.
401137 Pan
2.10 To remove 401137 pan:
• Remove cover (2.09).
o Stand opconupright on front side as shown.
2 Remove two 184056 screws from
left and .right side frame tabs.
401100,401101, OR 346900
COVER
~
~
2 Use a thin bladed screwdriver or orange stick and
pry left and right levers down. Remove cover.
3 Disengage ears of pan
from left and right side
frames
and remove pan.
Page 5

SECTION 582-211-700
410055
or 410075 Interface and Bell Card
Note: The interface and bell card is not present in late design 40K101,40K104, 203 and 40K105 opcons.
2.11
To remove 410055 or 410075 interface and bell card:
• Remove cover (2.09).
• Remove pan (2.10).
oRemove screw and lockwashers securing ground straps to left side frame.
PINS
2 Using a screwdriver, compress locking tab on three supports,
one at a time while applying upward pressure to circuit card,
and remove card.
3 Remove 401149 SSI connector from connector b~cket.
CONNECTOR
BRACKET
;;
Remove 346255 volume control knob and 346696 static discharge
shield from circuit card -
not supplied with circuit card.
'YB ® :~
~
346696
SHIELD
~
Warning: During reassembly, carefully seat circuit card pins into receptacles before applyingpressure.
2.12 To reassemble volume control knob, support housing end of potentiometer before forcing knob
over knurled shaft. The knob must be seated flush against surface of side frame.
Page 6

ISS 3, SECTION 582-211-700
2.13
To reassemble SSI connector, install connector with shield into its mounting bracket so that the
shield tabs go through the bracket.
Note: Shield ears may be bent during installation.
(Rear View)
Keytops
2.14 To remove
data key tops:
Interface Connector With Shield
(Installed
on Mounting Bracket)
(Bottom View)
Place 346260 tool over the key top and pull up to remove. This tool whenused to remove the CAPS LOCK
key top will only engage the key top in the unlatched position.
Warning: The CAPS LOCK key top must be in the fully extended, unlatchedposition before attempting
to remove keytop. Failure to observe this precaution will result in a damaged keyswitch.
t n"'346260~
~ TOOL - liJ
I
, I
'{ , t
Page 7

SECTION 582~211-700
2.15 To remove control keytops and blocking keytops:
oGrasp key top using thumb and index froger.
0Exert upward force until key top releases.
2.16 To reassemble blocking key top for the CAPS LOCK switch only, operate switch to latched (down)
position.
For all blocking keytops, position key top over switch housing and snap down until ridges
are retained by notches in switch body.
Caution: Controlrow blockingkeytopsare not thesame on thefrontandrear sideand must be assem-
bled with the proper orientation. New style blocking
key top has finger-like extensions to the interior of
the keytop to prevent reversal.
REAR
Profile of Control Row Blocking Key top
2.17 To remove the NEW LINE key top with housing: NEWLINE
KEYTOP
• Remove cover (2.09).
oRemove TAB, SYN, ACK, NAK,
Quotes, SHIFT, and RETURN
keytops that surround the NEW
LINE key top using 34:6260 t()()l.
2 Disengage rear tine from housing
with a small screwdriver while
pulling
NEW LINE key top up
and toward the front.
@Continue applying upward pressure to the NEW LINE key top and
disengage
the front tine from housing using a spring hook. Remove
key
top with housing from channel.
FRONT
TINE
(Front View)
2.18 To reassemble insert housing with key top, observe position of locating lug on housing and press
into channel. Housing must snap fully into front and rear channel tines.
Page 8

ISS 3, SECTION.582-211-700
Spacebar Mechanism
2.19
To remove spacebar mechanism:
• Remove cover (2.09).
SPACEBAR
SPRING
HOOK
, Disengage leaf spring (bronze colored) from wire bail using a spring
hook and pull toward the front.
oDisengage two rear tines (one at each end of spacebar) with a small screw-
driver while pulling the spacebar up and toward the front.
@Continue applying upward pressure to spacebar and disengage two front tines.
4 Remove wire bail from left and right
spacebar guides (snaps in
and out).
SNAP DETENT
2.20 To reassemble spacebar mechanism, make sure the four tines engage the notches in spacebar hous-
ing and leaf spring is engaged to wire bail.
2.21 Check mechanical operation
of spacebar so that it returns to its unoperated position freely when
depressed
and released slowly.
Page 9

SECTION 582-211-700
Keyswitches
and 341088 Test Indicator Assembly
Note: Refer to Fig. 8 for keyswitch identification.
2.22 To remove keyswitches and
341088 test indicator assembly:
• Remove cover (2.09).
• Remove pan (2.10).
• Remove interface and bell card if present (2.11).
• Remove key top if keyswitch is being removed (2.14), or unsnap test indicator cap.
e!) Remove solder from around terminal pins of keyswitch or test indicator
to"'~O"d.~
A~ ~ ~SOLDER
REMOVED
Warning: Use a grounded, low wattage soldering iron (auoid prolonged contact with pins) along with a
desoldering
tool to preuent damage to keys witch card circuits and components.
oPlace 346257 tool over keyswitch or test indicator and press downward.
When
tool bottoms and embossed projections snap into notches on
housing, squeeze and pull back on tool to lift keyswitch or test indicator out.
346257
TOOL~
<u-~
LOCATING
LUG
HOUSING
Note: The tines of the tool must pass between keyswitch or test indicator housing and inside of
channel tines.
2.23 To reassemble, insert
new keyswitch or test indicator, observe position of locating lug (on key-
switch only),
and press into channel. Housing must snap fully into front and rear channel tines.
Hold keyswitch
or test indicator in place and resolder.
Page 10

ISS 3, SECTION 582-211-700
ROOPCON
A. Removal and Replacement
2.24 Removal and replacement
of the RO opcon can be accomplished by following procedures for KD
opcon (2.04 and 2.05).
Note: For 40K003/40K004 opcon removal, remove the opcon connector with a flat cable from the
410675 circuit card assembly in procedure 2.04. For 40K003/40K004 opcon replacement, reverse the
procedure in the above.
B. Key top Conversions
2.25 Key
top conversions can easily be performed by substituting certain designated key tops or blocking
key
tops without removing the opcon from the set.
2.26
The key tops that are affected in conversions are TRANS START or TEST and DATA ERROR. If
conversions are made to directly substitute opcons with different arrangements, the necessary parts
can be interchanged between units.
2.27 There are
two types of key tops involved in conversions: control and blocking (see Fig. 3). Refer to
Fig. 16 for part numbers required when key tops must be ordered and stocked to provide these
conversions.
C. Major Parts Identification
Note: To remove a subassembly or individual part, proceed to the paragraph number referenced in
parentheses.
401161
COVER
(2.28)
40KOOI
Fig. 5-RO Opcon
40K003/40K004
Page 11

SECTION 582-211-700
D. Disassembly{Reassembly
401161 Cover
2.28
To remove 401161 cover:
Remove
two screws w{lockwashers mounting
cover to keyswitch bracket.
=
-- ... ~-
40K001 Opcon
'GROUND
'L_----STRAP
Note: Two cover mounting screws in the 40K004 and 40K003 opcons are located in the area as shown
in
the 40K001 opcon.
Key
tops
2.29 To remove control and blocking keytops:
Grasp key
top using thumb and index finger.
CD Exert upward force until key top releases.
Caution: Blocking key tops are not the same on the front and rear side and must be assembled with
the properorientation. New style blocking keytop has finger-like extensions to the interior
of the key-
top to prevent reversal.
REAR
Profile of Blocking Key top
2.30 To reassemble blocking key tops, position blocking key top over switch housing until ridges are re-
tained by notches in switch body.
Page 12

Keyswitches
2.31
To remove keyswitches in 40KOOI opcon:
• Remove cover (2.28).
• Remove keytops (2.29).
CD Unsnap 9-pin connector from bracket.
ISS 3, SECTION j)82-211-700
1 Remove two screws w/lockwashers
securing keyswitch channel.
0) Remove solder from terminal pins securing cable leads and jumpers,
and remove insulator.
CHANNEL~
~-, ,:) 0
CABLE
197464
DIODE
(Data Error)
Warning: Use a low wattage (avoid prolonged
contact with pins) soldering iron along with a
desoldering tool to prevent damage to cable leads.
Page 13

SECTION 582-211-700
oPlace 346257 tool over keyswitch and press downward. When tool
bottoms and embossed projections snap into notches on keyswitch,
squeeze and pull back
on tool to lift keyswitch out.
Note: The tines of the tool must pass between the keyswitch housing and the inside of channel tines.
346257
TOOL
KEYSWITCH
2.32 To reassemble the keyswitchesin40K001 opcon, insertnewkeyswitch, observe position oflocating
lug, and press keyswitch into channel. Switch must snap fully into front and rear channel tines.
Before resoldering, replace insulator,
hold keyswitch in place and resolder.
2.33
To reassemble 9-pin connector in 40K001 or 40K004 opcon, install connector with shield into its
mounting
bracket so that shield tabs go through the bracket.
Note: Shield ears may be bent during installation.
(Rear View)
Page 14
Interface Connector With Shield
(Installed on Mounting Bracket)
(Bottom View)

ISS 3, SECTION 582·211·700
2.34 To remove keyswitches in 40K003 and 40K004 opcons:
-Remove Cover (2.28)
Note: Alarm and alarm volume
control
not present on 40K004
opcon.
-Remove keytops (2.29)
o To remove 410675 assembly from
407225 mounting bracket, loosen
two screws under the 410765
and slide
the 410765 out.
oRemove solder from the keyswitch terminals on the 410765 circuit card assembly.
oFollow the instruction 0 in 2.31.
2.35
To reassemble the keyswitches in 40K003/40K004 opcon, observe position of locating lug, and
press keyswitch
into channel and 410765 circuit card holes. Switch must snap fully into front
and rear channel tines. Before resoldering, hold keyswitch in place and resolder.
Page i5

SECTION 682-211-700
3. ADJUSTMENT
3.01 The clearance between
the cover and key top is the only adjustment provided on .theKD. Normally,
readjustment is
not necessary unless the cover is replaced or if there is an interference between a
key
top and the cover.
COVER TO KEYTOP ADJUSTMENT
Requirement
Gap, approximately equal in four places shown.
II
To Adjust
-Remove cover (2.09).
Loosen two 184056 mounting screws friction tight on both sides of opcon.
184056
MOUNTING
SCREW
KEYBOARD
ASSEMBLY
184056
MOUNTING
SCREW
Insert screwdriver blade into adjusting slot and move keyboard assembly forward or to the rear to
gain gap clearance.
Tighten screws, replace cover and check gaps.
Note: If gaps required are not approximately equal after reassembly, remove cover and repeat
adjustment procedures.
Page 16

4. PAR'l'S
LEFT SIDE FRAME
MECHANISM
(See Fig. 10)
184056 (2)
""
e>-------
: _/ /_; /711 (3)
1- --- -- ; /:---
~
<I>
ISS 3, SECTION 582·211·700
RIGHT SIDE FRAME
MECHANISM
(See Fig. 11)
,I __ ~
c~
'"
CONSOLE LOGIC
CIRCUIT CARD
(See Fig. 7, 8 and 9)
<DUsed on early design 4OK101
and
40KI04 opcons only.
®Part of 40K105 opcon only.
CD Part of 40K203 opcon only
Fig.
6-KD Opcon (40K101, 40K104,203 and 40K105) Major Components
Page 17

SECTION 582-211-700
76249,'1\'
3649 __ 2191
'f 181240 (2)
: ~-
I
I
346252_~
I
I
I
I
I
I
L---- I
340769 341082--- ~
~341069 I • ",,~---~,
'" Wi ~~~~~AR /
"""" ~AnZ~~ 181240(2)
~: + ~40777 ., -SPACEBAR
340777 ~ GUIDE
V 340770 (2) 346385
346696 ~-401149 " i
--
"''1
--
"
-~
181240 (2)
Note 1: For early design
4OK101 and 40K104 opcons.
346234,
346244-SlI
1346F35.-~
341088 J
151152
I
~ __ 3640
~ • ~341,648 (9) ",<> .......... 181241 (2) j _ ---
~"' ~, 346386 (2)-1
..... : I --
" \ ---- -i- i~
125011_.!:,
I
,
" 346701 __ ,f--=-~-
"\ ----:--:-----
~---- ---::-------
----:::-=---:-':-':--;';;;:£. '1..
·~'~~r. -- S~~ ~~~~
---,
Fig. 7-Console Logic Circuit Card
Page 18
: ---~)
-r I
346255
,>
Note 2: For late design 40KI0l,
40KI04, and 40KI05 opcons.

151152
I 3640
!/ ~<~,
t"
: 346426
I
I
I
L--
,,,,,
->
o Not part of 410095
circuit card.
I',
i ~--181241
I
1
346370 __ @
ISS 3, SECTION 582-211-700
~--346722
Fig. 8-410095 Console Logic Circuit Card Components
for 40K203
Wide Opcon
Page 19

SECTION 582-211-700
Early Design 40KI0l Opcon
Early Design 40KI04 Opcon
Late Design 40KI0l Opcon
KEYSWITCH PUSH ROD
POS NO.
TYPES COLOR
A 340720 Basic White
B 340721 Repeat Green
C 340722 Latching Black
D 341097 Combination Yellow
E 346211 Indicator W{Resistor Orange
F 346359 Indicator Orange
Fig.
9-Keyswitch Identification
Page 20