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Teletype 42 CPS, Circuit Diagrams

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Teletype 42 CPS Circuit Diagrams Download Page 49

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ln 

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II 

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LB6 

A 

B 

c 

D 

E 

F 

2 

4 

5 

CIRCUIT  NOTES: 

IN FORMATION  NOTES: 

101.  VOLTAGE 

VOLTAGE  RANGE 

201.  ALL  RESISTORS  1/4  WATT  AND  RESISTA NCE VALUE  IN  OHMS,  UNLESS 

SPECIFIED. 

+12V 

+5V 

-12 

+IO.STO 13.2 

+4.5 TO 

5.5 

-10.8  TO 13.2 

202.  ALL  CAPA CITOR  VALUES  IN  MICROFARADS , UNLESS  SPECIFIED. 
203. 

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INDICATES  FEM ALE  TERM INAL. 

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INDICATES  M ALE  TERMINAL . 

102.  INTEGRATED  CIRCUIT  BATTERY  CONNECTIONS: 

15 

19 

14 

1 7  

7 

204.  LOGIC  DESIGNATION 

PACKAGE P!N NO. 

LOCATION ON CIRCUIT  CARD 

PART NO. 

TYPE 

DESIG. 

+12V 

+5 

v 

GND 

-12 

v 

335529 

LINEAR 

MLA1,A9 

14 

7 

474032 

TTL 

MLA2,A3,A7,Al0 

14 

7 

MLA4 

14 

7 

474000 

TIL 

474004 

TIL 

474008 

TIL 

335528 

LINEAR 

335522 

OPT.  ISOL. 

326800 

OPT.  ISOL. 

MLA5 
MLA6 

MLAS, B5 

14 

MLBl, BlO 

MLB3, 

87 

14 

7 

14 

7 

1 

205.  P302  PINS 4,0, 6  AND  8  MUST  BE  STRAPPED  WHEN USING  20/60 MA  CURRENT 

LOOP  AT  THE LINE  CONNECTOR.  PIN  3 MUST  BE  STRAPPED  TO  PIN  4 WHEN 

USING  RCI INTERFACE  AT  THE  LINE  CONNECTOR. 

404049 

CMOS 

MLB6 

1 

8 

206.  P303  PINS  2 AND  8 MUST  BE STRAPPED  WHEN USING RCI  AUX. CURRENT L06P. 
207.  STRAP  P303  PINS  7  A ND 17  TO BLIND  RECEIVED  DATA  TO THE PRINTER. 

+5 V 

TERMINAL 

I/0 

J301 

OFF 

ov 

TAU  READY 

TERMINAL- DATA  SET  AND  AUX ILl  ARY 

I 10 

1 

M 

+SV 

s 

I 

ov 

M 

I 

SEND DATA  I  MLA  2 

l2 

'\_ 

12 

I 

1 3MLA 

II 

+5V 

DATA 

--

1 

S, 

I 

ov 

LOCAL 

\ 

I 

TERM. READY  3 

4 

OV 

MLA5 

: 

� 

I 

R

I

N

G 

INDICATOR 

1 

oFF 

12  MLA5  13 

os

1  ov 

I 
I 

. 

2 

I 

+5Vi 

I 

I 

9 

ov 

M

l 

8 

I 

5 

8 

s 

4 

I 

4  5 

9  10 

RTSA 

4 

I 

+12Vx 

....J 

....J 

+12V 

DATA, LOCAL 

I 

3 

-I2V  OFF 

6LOCAL 

-12V 

AUTO  A NSW. 

I 

5 

I 

HALF 

I 

2 

I 

DUPLEX 

10 

I 

R3 

� 

+ 

5V 

6.8K 

� 

I 

+5V ;::-L 

MLA5 

I I 

I 

OV  s 

I 

+5 v 

II 

R9 

I 

REC. DATA  3 

2 

3.3K 

I 

8 

I 

CHARS. PER  SEC ONO 

I 

+5V 

1  +5v 

30 CPS 

� 

2 

I 

ov 

10 

CPS 

+ 

5V 

10 

1 

6 

9 

10 

6 

+12V 

I 

LOGIC  GROUND 

13 

3 

R4 

I 

MLB� 

R2 

MLB5 

+�V 

R� 

R6  R7 

I 

6.8K 

6 

3K 

3K 

3K 

td 

� 

� 

C7 

MANUAL  385, PAGE  23 

oo6 

7 

8 

9 

10 

I I

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410754  TERMINAL 

AUXILIARY  UN IT  TAU-2 

DATA SET 

+5Vx 

ov 

s 

SDO  tUNE) 

\ 

3 

+ 

5V 

,...-

I 

Rl5 

L-

MLBl 

2 

Ql 

LINE 

20 I 60 

MA  CURRENT  INTERFACE 

., 

I 

I 

I 

..J 

I/0 

J302 

I 

TC1 + 

I 

14 

I 
I 

I 

I 

Q2 

CR4 

I 

I 

I 

I 

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A 

Rl3 

Rl4 

TCI-

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13 

... 

.. 

M 

lOOK 

+SV 

RC.I + 

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��OJ"\._ 

CR3 

+5V 

Rl 

3.3K 

2 

ON 

-IZV 

RING 

INDICATOR 

22 

S 

-l2V 

I  REC.  DATA (LINE) 

20 

+ 5 

v 

OSR 

I 

-12v 

I 

CTS 

ON 

I 

-12V 

OFF 

I 

CD 

I 

8 

ON 

-12V 

OSI 

RTS 

4 

DEVICE CONTROL 

I 

24 

I 

c 

RIO 

RCI 

-

I  15 

10-"-

AUXILIARY 

20 I 60 

MA  CURRENT 

INTERFACE 

+5V 

Q3 

Rl9 

I 

_...J 

4 

R20 

IOK 

IK 

14 

R24 

/ 

r-

lOOK 

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6 

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R24 

lOOK 

10� 

R21 

220 

Q4 

CR6 

+ 

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CR5 

I 

+ 

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I) 

E 

F 

CR2 

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8 

5. 

K 

I/2W 

l/2W  112W 

II,L. 

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!OCPS 

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20 

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24 

LOGIC GROUND 

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16 

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Summary of Contents for 42 CPS

Page 1: ...DATA Bl r 0 DATA BIT I DATA BIT 5 DATA BIT 6 DATA BIT 7 1 rom SINGLE CHARACTER PRINTEDI MAPL 5V Jl05 1 5 I I 116 PART OF PRINT HEAD ASSEMBLY LEFT MARGIN SWITCH Y o PRINT DOTI 1 j I R3t I 22 I L iES ...

Page 2: ... in 42 43 Basic Terminals 534 Interfaces Controllers and Modification Kit Circuit Cards Associated With 42 43 Terminals 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 reparing major components Complete repair information including circuit descriptions parts troubleshooting ...

Page 3: ...IRCUIT CARD Issue 9A 9 410701 POWER SUPPLY CIRCUIT CARD 10 410702 POWER SUPPLY CIRCUIT CARD Issue 1A Through 2B 1 1 410702 POWER SUPPLY CIRCUIT CARD Issue 3A 12 410703 POWER SUPPLY CIRCUIT CARD Issue 1A 1 3 KEYBOARD CIRCUIT CARDS 43K101 AAA KEYBOARDCIRCUIT CARD 14 43K101 CAA AND CAB KEYBOARD CIRCUIT CARD 15 43K202 GA KEYBOARD CIRCUIT CARD 16 50K122 AA KEYBOARD CIRCUIT CARD 17 INTERFACES 4100 38 TE...

Page 4: ... ffiD I0 D I I i itt ill 3 TIJ IDl I 1 1 D J Ill I s m illa m i E Y i r ue i Cll CR22 R2 CltlO _ a CR32 0 Cl l13 CRI6 Clt31 8 COMPONEN T IDENTIFICATION AND LEAD DESIGNATION 1 2 3 4 5 6 7 B Base E Emitter C Collector 0 Q1 Q2 Q4 Q6 Q7 c B E EBC MLB 2 MLC 1 MLB 3 MLC 2 MLB 4 MLC 3 MLC 8 MLC10 14 MLCll 13 12 MLD 1 BC E I MLC 7 I 64 1 Q3 Q5 c B E 64 11 MLD 8 33 32 33 10 MLD 9 MLD10 9 MLDll 8 RPD 5 Top ...

Page 5: ...RD 208 POSITIVE LOGIC S l hi80LS AREEMPLOYED 2 0 4 SWITCH PACK DESIGNATION 1P AI W4 SWITCHNUMBER p R3 I I _ LEVEL 17 Q tiCO R2 415 R2 15v nJ1i n 11 C411 l 1 PMCI RF 44 t J L J S Y TA TATT _E z 1 hiLOtl 11 cR29 Toozl S IKK R4 43 R4 1 30m I C ZT i T I I T iTiP A SH3 TZV t3i I 1 CR28 ll 12V I u iiiCo R6 t R6 I I I V MICI R7 40 fiT I l 10 I 1 IZY 8Z YE I 6 W A8 3St k8 R66 13 t I J 8 c J101 P201 X iii ...

Page 6: ...J c ltf4 ltl3 c YRt2 NOTPRESENT_ ON 410740 ISSUE1B g Dr POSITIONS REVERSED ON 410740 ISSUE1B COMPONENT IDENTIFICATION AND LEAD DESIGNATION l c Jo oo If G J c Jo G J t n ll l JI07 1JJioo IZJ Ill c rc C JGJ c lo Mo G J c A47 g Ctt c ooCZl ft45 G J 1144 l et B Base E Emitter C Collector CR1 CR27 I Q1 Q5 I Q6 Cathode Q7 Q20 rA A Anode MLA8 MLB4 MLB5 MLE1 MLE3 14 13 12 Ill 10 i9 8 Top View acE MLD2 MLE...

Page 7: ...17 DATA BIT 0 13 17 OV OFF R2 IO U I 00 00 LHM 22K E l t 52m f I 16 DATA BIT I 12 PHO 39 PRINT LEVEL I tsmt 8 5m 4V 1smt h_ n 70V I L g T EO DI 01 r 1 4 8V REPEAT r 1 L5V REPEAT 1 JIU IV I 430146 D2 15 DATA BIT 2 II 02 PHI 38 PRINT LEVEL 2 J L 4v LINE FEED J L 4v IJ 14 DATA BIT 3 10 37 PRINT LEVEL 3 LINE FEED MOTOR A C If I I IM __ 4 8V HALF TST 18 1 V 131 12 DUPLEX OV ULL 31 I _ JM 4 8V OPEN OX 1...

Page 8: ...Cl7 0 c J R41 j 11 47 c J c16 c J Cl5 0 c J U5 c J Cl4 _ J Cll c J 111 3 c J R51 r i J R54 L J Nl c J R 0 s r R55 J Cl2 C21 J RS 0 R52 CJ CI8 COMPONENT IDENTIFICATION AND LEAD DESIGNATION 1 2 3 4 5 6 7 CR1 CR29 Cathode Anode MLA9 MLB4 MLD3 MLEl Top View BeE 1do 2 3 4 5 6 7 8 Q1 Q5 Q7 Q20 L J Top View B BASE E Emitter C Collector Q6 c B LP c 1 n 40 IMLC8 I 2J tl I 0 I Bl l9l0 0 5 2 0 7 131 r o1 Q21...

Page 9: ...5 12 12 12 10 10 2 DRIVER Ql9 QIB 017 016 015 Ql4 Ql3 Ql2 Qll 1 A OUTPUT DIODE CR26 CR25 CR24 CR23 CR22 CR21 CR20 CRI9 CRI8 SWITCH PACK 203 ESISTOR PACK OESIGNATION a a o sv Jloa INTERFACE p f t f f 42V PIN II U I I II IV tl RP 03 CODE INDICATES LOCATION ON CIRCUIT CARD RESISTOR PACK i 0 a 204 OFF BOARD SWITCHES POWERGRO 4V LOGIC GRO 12 v Ft r N I OP N or 2 0N PAPER OUT I NO PAPER IN MACHINE LOW P...

Page 10: ... t t W G 0 0 00 i 00 00 iM 8 COMPONENT IDENTIFICATION AND LEAD DESIGNATION B J107 c 9 1 0 A QJ uy tP J 2 f I J110 n 0 B Base E Emitter C Collector c CR1 CR30 Cathode A Anode MLA5 MLAS MLB3 MLD2 MLE1 1 0 14 2 13 3 12 4 11 5 10 6 9 7 IS Top View Q1 Q5 Q7 Q19 Q22 BeE I Esc Q6 Q20 I 1 Q21 40 MLC5 D 20 1 _ 1 21 MLD1 1 10 tg 9 tzt MLC2 MLC4 1 ill 28 MLDS 16 15 14 13 12 11 10 1 9 Top View 0 14 t 15 ...

Page 11: ...VJTYPICAL ONE OF NINE PRINT I 0 1 T2 1 ss1 ouT 19 ouT2 271 REQuESTNEXTCHARACTER 15 NC J 51 I EVE LS SEEPRINTLEVELCHARTIIC lit 3 _ _ f clr M RNC 3 DATA BIT O 13 PRINT LEVEL 1 1 f m 1 f m zov ___ ________ J R50 1200p f DO 00 4 8V 5 6 2K 4VP P Dl 4 DATA BIT I 12 Dl PRINT LEVEL 2 f l rr 1 V I SSt OUT 20 SStOUT1 02 DATA BIT 2 I I D2 PRINT LEVEL 3 v 4Y 1 5 L CIS t I 17 9U D3 DATA BIT 3 10 D3 PRINT LEVEL...

Page 12: ... c A J c A 2 J I I _ 3 I cccoocooocoo 1 l 0 1zo D B r r 13 HLB2 If 1 1 I a I _ HL83 I I J 1 0 3 l I acocccococoo 1 J I I I c n _ _ _ _ _ _ _ _ _ _ _ a I ____c I I I L J COMPONENT IDENTIFICATION AND LEAD DESIGNATION 1 0 14 MLA1 I 1 2 13 MLC2 RPA2 3 12 4 11 5 10 6 9 7 8 32 Top View I 64 MLB3 Top View ...

Page 13: ... 4 A4 MLB2 3 A5 2 A6 I A7 23 A8 22 A9 19 AIO Vpp 00 01 02 03 04 05 06 07 cr 0E SW3 18 20 6 3 SPCI MLC2 2 5 4 SW4 21 5V 9 10 II 13 14 15 16 CIRCUIT NOTES 101 VOLTAGE 5V 5V VOLTAGE RANGE 4 5 T0 5 5 4 5 T0 5 5 102 INTEGRATED CKT BATTERY CONNECTIONS TYPE DESIG 5V LOGIC 5V GND TTL MLAI 14 7 TTL MLC2 14 7 MOS MLB3 I 32 64 I03 SWITCH OPTIONS DESIG FUNCTION SWITCH STATE TOENABLE FUNCTION SWI FONTSELECT OF...

Page 14: ... 0 c BJJJ d B o an 02 B 1 0 D OI J L CE J 3 C llii o ITiJ C21 0 IQ6 G o 8 cm CI 0 0 07 0 E JC9 1 7 0 0 0 0 0 0 0 A I A2 AJ A4 A5 A6 SEMICONDUCTORS AND INTEGRATED CIRCUITS IDENTIFICATION AND LEAD DESIGNATION Q3 Anode Gare Cathode jAG Q7 REFERENCE OUTPUT rn PUT I Q4 Anode Gate AGC Cathode ML1 1 14 2 13 3 12 4 11 5 10 6 9 7 8 Top Vfew I Q2 I Q5 Anode Collector Gare Cathode eGA Emitter EBC Q6 Q1 BM or...

Page 15: ...ACKET 412278 RE AR FRAME 412302 MOUNTING BRACKE T 412302 MOUNTING BRACKE T 206 THESE C O MPONENT S ARE RE MOVED AT CUSTO MER ID ISSUE 3A r I I I I I I I I __________ ____j I Jsol I 1 _ _ ________ T ___ _ J I 2 j TO MOTOR TERM AI I I I I I I I I I I I I I I I 1 I I I I I I I I I I I S W I BK J60 1 I I I I IG I I Y IR I IG TERM AI L O W TAPE SW2 TERM A 2 TERM A 6 TERM A 3 TERM A4 TERM A 5 G I r G MO...

Page 16: ...J Cl I LJ 8 iftiD I cg c rn CRU ciCP 9ftiD fiE OQII oo R 9l J CR9 CRI9 CR27 e s W _ l e 410700 SEMICONDUCTORS AND INTEGRATED CIRCUITS IDENTIFICATION AND LEAD DESIGNATION CR25 Anode Ga Cathode AGC Q3 Q5 Q9 M C Em1tter I CR21 Anode TG1 AG Q2 Q4 Q7 El Q 6 l OCathode 0 Base EBC Emitter CR5 CR20 CR22 CR24 CR26 CR27 CR31 c Cathode Anode A CR1 4 CR29 CR30 CR32 c tCoiliOO t A Anode CR28 Cathode c Anodt ML...

Page 17: ...C GROUND 16V DC 15 4 TO 19 5 UNLESS OTHERWISE SPECIFIED w 16 DC 15 4 TO 19 5 303 ALL CAPACITORS VALUES IN MICRO FARADS UNLESS 9V DC 8 2 TO 0 4 OTHERWISE SPECIFIED I OICATES 12V AND t5DC 5V DC TO 54 GROUND t 5V t42Vs 1 I2V DC TO t2 e 304 TRANSFORMER WlhOINGS DC RESISTANCE L 12V ti6V ti2V PULSE WIDTH MODULATOR I I J2V DC 1 1 TO 12 8 INDICATED IN OHMS I 42 DC 39 TO 45 305 CONNECTORS PIN NUMBERSl j IN...

Page 18: ...f Ifr CR25 R50 ijlll m K T l C C9 Q CR26 CJOII W o J C4 IT CR7 RS c 8 CJ CRIO 0 fr r 1 f R41 I ffi f l j M A C l3 a 1 EJ e fl iii Q CR20 CJ mJ 03 BID iBm ill 1 410700 SEMICONDUTORS AND INTEGRATED CIRCUITS IDENTIFICATION AND LEAD DESIGNATION CR25 Anode Ga Cathode AGC Q3 Q5 Q9 r o C EB Emitter I CR21 Anode r 1 CR5 CR20 CR22 CR24 CR26 CR27 CR31 AG c Cathode Q2 Q4 Q6 Q7 QS QlO oo Anode A EBC Emitter C...

Page 19: ...CAU SEE NC L TP I F 20 s Sl I_ IFG I I IGSI r 1 I l4i SEE NOTE 309 Cl6 1_0005 c1 200 r INDICATES F OUR TERMINAL LOW J l INDUCTANCE CAPACITOR _ L_ OVERVOLTAGE DETECT I 12V OVERVOLTAGE L OV MANUAL 385 PAGE 8 311 ...

Page 20: ... l l J LJJ G F i _ 1 CRO z mr H E CRIB imJ m Tl ifiill amJ J D 0 w C2 K C C9 m D ro II 8 c Jl CRI9 fR4l M A 1 m i D I Cj CD I 410700 0 h a 0 SEMICONDUCTORS AND INTEGRATED CIRCUITS INDENTIFICATION AND LEAD DESIGNATION CR21 Mo I I i I I I Ga CR30 CR32 CR28 I Q1 ML5 ML6 ML7 Cathode ar r Q2 Q3 Q4 Q5 Q6 Cathode Q9 Q7 Q8 o Jl A l rr Anode Anode A c AnodP MLl 1 04 2 5 3 6 Top Vtew C B E o 2 13 3 12 4 II ...

Page 21: ... DC 9V DC 5V DC FG I I I t I z 4K 2 4K ___i NV Y o ur10 s t I COMP v I Yo n 1 11 I I T CR4 CR2 f 1 3 J R46 7 _j u ov I I I I I R45 CIS V lOOK 131 it2 __J i I_Y_Y L 41 7 2 K T 2 0 0 I I l l L INFORMATION NOTES POTENTIAL I I L_ ________J 42VOC 301 TERMINALS DESIGNATION ENCLOSED IN PARENTHESIS ARE NOT MARKED ON THE COMPONENT V G O R E 302 ALL RESISTORS ARE l 4 W 5 4 AND ALL IN OHMS 15 4 TO 19 5 UNLES...

Page 22: ... CR29 J CR28 1C J 0 r8tcD T r 8 eOO ill iWl ffiil ill 11 5 ill J mi I m rl91 J SEMICONDUCTORS AND INTEGRATED CIRCUITS IDENTIFICATION AND LEAD DESIGNATION I Q4 i r EB C Emitter Q5 oW C Emitter l 2 3 4 5 6 7 8 CR32 lat n CR47 CRl CR31 C CR3 8 CR46 Anode ML2 0 2 J 4 ML3 ML4 ML5 3 1 2 Ql Q2 Q3 C B E Q7 y ro C EB Emitter fr Q6 Q 8 if EB Emitter c ...

Page 23: ... SPECIFIED 303 ALL CAPAC TOR VALUES IN MICROFARADS UNLESS OTHERWISE SPECIFIED 304 TRANSFORMER WINDINGS OC RESISTANCE INDICATED IN OHMS 2 T i 1 1 305 306 307 _ _v r v_v VJ Y TH 3 TH 4 t INDICATES OC GROUNDS 5V 12V INDICATES PRIMARY CIRCUIT COMMON VIN i i v J i 1 I t l 5 W EOUIV t L J m32 I 4 ml2 3 4 PZ CRI v N rh t ACTUAL 2 7 I 2 W 6 CR3 VIN r 6o INDICATES FRAME GROUND PROTECTIVE GROUND INDICATES T...

Page 24: ...R7 c J ttt 4 J Tl 0 R36 c J cJ R57 os Rl6 cs c J A69 J RtO IC c c9 80 5c 2s S oou 00 C7 R2 07 Q03 Rl L 8 I CR09 g Cl Q R20 S 8 n B M A E Cl3 RSZ c J A63 a RZI c r 8 64tt Q mil tm C6 CS Rl2 410702 R27 SEMICONDUCTORS AND INTEGRATED CIRCUITS IDENTIFICATION AND LEAD DESIGNATION CR25 Anode Ga Cathode AGC Q3 Q5 Q9 T if C EB Emitter I CR21 Anode 1 1 CR5 CR20 CR22 CR24 CR26 CR27 CR31 AG c Cathode Q2 Q4 Q6...

Page 25: ...OTES KEY J201 rINOIQATES FUL L WAVE B RIDGE 201 12V CR27f t 15V MANUAL 385 PAGE 11 __ __ II I r _ C IH r1 I Fll I I I I I I I I I I I I I I I I I I I ILl I I I I I I I I I I I I I 12 I 13 I 14 I 15 I DC SECONDARY 16V DC CONVERTER 2 R54 2 7K I I IC IIL_ ___ r 1 I L____ J OSCILLATOR a CONTROL CIRCUIT 42VS VOL TAGE REFERENCE AND ERROR AMP R49 24 9K 2 5 t R50 Z 4K 5 9 12 R35 121K l to R32 lOOK 1 20 KH...

Page 26: ...C 7R22 c J c J RIO Tl D L J R49 c l r J c r D Q Cl 08 eEl 12 Q03 RO K C C9 R30 c J sr CJ _ O OI n B B I JI CRI9 8 0 c J o mfr CI i C5 IUZ w CR20 Cl3 410702 iii mr SEMICONDUCTORS AND INTEGRATED CIRCUITS IDENTIFICATION AND LEAD DESIGNATION CR21 Anode CR5 CR20 CR31 Cathode Cathode Q3 Q2 Q5 Q4 Q9 Q6 m Q7 QB QlO C EB A Anode Em1tte r EBC Emitter CR1 4 CR29 CR30 CR32 c tT A Anode CR28 ii oo c Anodt MLl ...

Page 27: ...TIVE INDICATES FULL WAVE BRIDGE Y COMMON NOT GROUND 4INDICATES TRANSIENT PROTECTION r INDICATES FOUR TERMINAL LOW l L INDUCTANCE CAPACI TOR _Jt_ I 12V OVERVOLTAGE LOV IZV L l T7V v y t4V R lOOK R36 lOOK IZV MANUAL 385 PAGE 12 5V I I J 47USEC 1 If 1 _j 9 10 r z 13 14 15 1s ...

Page 28: ...CUITS IDENTIFICATION AND LEAD DESIGNATION A CR1 CR4 CR6 CRll CR13 CR19 CR22 CR24 CR26 CR35 Cathode Anode Q2 C E B ML1 Ba s Collector C B E Emitter ML2 1 06 2 5 3 4 ML5 ML6 ML7 J r 1 E 4 5 6 7 8 9 ML3 18 17 16 15 14 13 12 11 10 CR5 CR12 CR20 Cathode Anode A A CR31 Cathode if C Anode CR21 CR25 Cathode t Anode ...

Page 29: ... APPLYING AN EXTERNAL 12VDC 200 MA SOURCE VOLTAGE TO THE CATHODE OF CR6 WITH NO AC POWER APPLI O 203 THE 5V 12V AND 12V REGULATOR CIRCUITS CAN BE CH CKED BY APPLYING AN EXTERNAL 9VOC I6VDC AN0 16VDC 200MA SOURCE VOLTAGE ACROSS C33 C34 AND C35 RESPECTIVELY AC DC CIRCUIT I CAUTION SEE NOTE SEE NOTE 102 I 2 I I 1 1 I I lPG I I I e 201 F I 131 I I IGS U I SEE NOTE 306 I t l 1 3 1 li ISSUE lA VtN 148VO...

Page 30: ...LAYOUT DDDDDo J UD ILS 1 1 0 ill 0 e I I I I I I 5 I 20 A t CD SPEED CPS B 0 0 0 Ly J 3 0 0 0 l dl0741 I I L ___ _j I COMPONENT IDENTIFICATION AND LEAD DESIGNATION MIA2 MLA1 MLA3 1 16 MLBl 1 14 MLA4 2 15 MLB2 2 13 3 14 MLB3 I 3 12 4 13 MLB4 4 11 5 12 5 10 6 1 1 6 9 7 10 7 8 8 9 I I ...

Page 31: ...02 39K RESET SWITCH DEPRESSED j f 12mSEC 1 I 5mSEC u DAT A r j IIJII ee L 5V 5 6K ALARM LOCAL 1 ri 7 9 U SEC CLOCK 560 KHt 12 I LOGIC I I I 5v e l I Cl 4 I 1 I GROUND I I C2 7 5V 2 I l 1 12v 12V 5 v lc3 1C4 lc5 lcs lc1 lee r l r l r l r l r l r l 1o RO 14 MLA4 7490 6 R9 X X X X X X X X X X X X X X 12 56 KH CLOCK DIVIDER I 2 3 4 5 6 MANUAL 385 PAGE 14 1 7 8 9 10 11 CONSOLE LOGIC I INFORMA TIOt NOTE...

Page 32: ...40844 340978 340846 340979 340890 340981 QJ W E R IT I U ll 0 P 0 0 0 0 0 0 0 0 0 0 0 0 0 340894 340852 340853 340854 3408 5 5 340856 340982 3408 58 340859 340860 34086I 34086 2 346403 340983 C L A S tO F G H J K L I J fl ET l I 0 0 0 0 0 0 0 0 0 0 0 0 0 340867 340984 340869 340870 34098 340872 340873 340874 340875 H0876 340877 340867 340986 SHIFT l X C IV 8 tNI Ill t SHIFT L F MLBI 0 l 0 0 1 1 i ...

Page 33: ..._______________ _ __ _ j 22 PULSES SCAN SENSE AMP I I I _ _ ______ _ _j J SENSE AMP I 10 II _ SENSE AMP 2 II IZ SENSE AMP 3 12 I 3 NOT USED r 4 53m SEC __ llllllllllllllllllllllllllllllliiiiiiiiiiiii 4 S E 5USEC DATA ENABLE f Ja PULSE 1ST OEPRESSIONJ KEY DEPRESSED R24 IOK 0 0 MLA5 KEYSWITCH LOGIC _ z i J 8 93 I USEC I 11 s v su7 5V BV RIB 680 CR5 R31 l SK 12 v TEST R32 1 5K Rl3 IOK 12V 0 0 _ _ 56K...

Page 34: ... i o mr w r mrr ttD rno crr J mD crm l m ma c a Ej am UDDDDDDDDDDDDUDDUD D DLJDDDLJLJDDDD LJ DDLJ LJ LJLJLJLJDDEJLJLJLJD LJ LJ LJLJLJ 0 WCJDDLJLJEJWLJLJ LJ LJ DEJEJ 8 b J LJLJ 0 0 410077 COMPONENT IDENTIFICATION AND LEAD DESIGNATION I CR1 CR14 I MLA2 1 r 40 Cathode I I q p A AoodJ J t 21 I I I I MLAl MLA3 111 MLA4 MLB2 MLB3 j0 MLB4 1H 28 b15 ...

Page 35: ...5 L6 L7 L8A L9 LIO Lll L12 L13 L14 L15 PIN NO RESISTOR ON LOIO NO CHIP 33 Rl 35 R2 37 R3 38 R4 36 R5 32 R6 31 R7 30 R8 29 R9 2B RIO 24 Rll 23 R12 21 R13 25 R14 26 Rle 22 Rl6 LO L1 L2 L3 L4 L5 L6 L7 L8 L9 LIO Lll Ll2 Ll3 L14 LIS L8A rl Lr rr rrc l rcf f f 6f 16f f6 I KEYSWITCHES AND SENSE AMPLIFIERS 1 B 93 I I u SEC Jl J 11 sv ltT NE OF 1 N AMPS WITH EXTERNAL CIRCUITRY 7 5V I UJ I I I BV 1 8 93 a 1...

Page 36: ... I c J c J c c J c c J c J c C c J CJ c 1 c J c J L J c J EJ LJ LJ c J L J L J L_ L J c J c J c J C c J C J C c J C c J CJ C E J E JEJ E J L J CJ c J C c J C C C CJ CJ CJ c J c J c J EJ E J E J EJ E J EJ E J E J c J c J c J c J c J c J J c J CJ c J c J EJ 4 1 0 1 0 1 J L___mY t_____qru COMPONENT IDENTIFICATION AND LEAD DESIGNATION CR1 CR9 c Cathode Anode A 40 20tl 1321 ...

Page 37: ...ERLOCK I 0 GJ0 00 0 54 E jo4 N 2 051 14 iz 113 203 CONNECTOR TERMI NAT I ON ON CIRCUIT CARD F 55 56 MLBI KEYSWITCH 0 0 0 0 Is h5 lz1 LOGIC Q 0 I lz C3 100 pF RZ 610k C4 I uf T YP I CAL KEYSWITCH GNO Cl I uF 3 514 515 3 560K sso 9 ILS B C2 I yF KE EPRESSED ___ j I I 1 IOV r ON I 10 5V 1I OFFI I I 1 IOV r oN I 10 5Y 13_ OFF L_ j I v JLrL IZ I O N t5 _r OFF ri V_r p 6 COVER 5 V r OPEN OPQI 0 V 1 OSE ...

Page 38: ... n 8 121 0 51 0 D O O 9 OlpV 3W2MA a 4 Jsy l pb _ 3 61 s 35MA I NORM NORMAe UMIT 00 t i o 4 Co 0 0 0w OIS oio I R I I E 0 R R R 0 SPl EXTERNAL 1 7 S 0 0 016 o 1 n n n t I POLAR NEIJTRAL RECEIVE LIMIT SEND SENO COMPONENT IDENTIFICATION AND LEAD DESIGNATION Q4 Q6 QB Qll Q12 Q16 Q1 Q3 Q7 Q9 QlO VR1 Q13 Q14 m 04e 0 I IN OUT CASE Anode A MLB5 MLB9 J 0 2 5 3 4 Top View 1 2 3 4 5 6 7 c E B MLA1 MLA3 I ML...

Page 39: ... C VOLTAGES FOR LOGIC POWER P2 AC VOLTAGES FOR CURRENT LOOP POWER P3 E I A SIGNALS TO FROM TERMINAL TBI TELEX CU RRENT LO OP LINES CLOSED IN 230V POSITION AC SELECT 2 3 1 5 6 IIJiol Wo t ro 12V c I 1 11111 W 12V 5V tN CASE OUT I J C4 IIJiol T _ I I LOGIC C IRCUITRY l y 2Y CR9 TRB NSB Rl2 H lo JVV v 5 VP CR29 190V 5 W 5 RF VP 7 420301 TELEX INTERFACE W 410036 CIRCUIT CARD 5 R32 220K R28 3 3K I 2W R...

Page 40: ... E rno 1 Ui oooo 0M 0 ffB I Joooooo 0 MOWO w q 3 COMPONENT IDENTIFICATION AND LEAD DESIGNATION l O a MLB12 2 7 MLC12 3 6 MLD12 4 5 Top View I 16 MLA4 I 2 15 MLAlO 3 14 MLBl 4 13 MLB4 5 12 MLC2 I 6 11 MLC9 7 10 8 9 Top View I 10 14 MLA2 13 MLA11 MLA13 12 MLB2 4 11 MLBS MLBl l 5 10 MLB13 6 9 MLCl 8 MLC2 MLC5 MLC7 Top View MLClO MLCll MLC13 l n 40 ID 20 LJ 21 Top View MLB3 MLB14 M r c 1 ui II IE Ill ...

Page 41: ...mT l 3 7 6 K POE 39 IPS ORD4 8 RO C3 1 2 4 8V SV T08 33 IOBB ORO 7 R06 1 o Sv Sov 16 Tos 23 IDS ORDS 6 ROT 4 BVsjV1 s 7 SV i U2v I TOI 26 IOBI OR07 M R R32 4 TK f _ l V 2 4 00 2 T02 27 IDB2 IXR 21 8V 101 16 7 110 2 ML I 3 g rI Rl6 ML J 01 T03 29 083 OSO OV L s CEPCET CS 85 5 3 I 36 NSB 330 02 4 T04 29 IDB4 I2SB v tOCPS l 9 PE 13 A3 03 5 TO 30 085 lSI 20 RU i1i avL30CPS P3 Q3 II 12 A2MLA4 04 6 TOG ...

Page 42: ... r O O N 0 Ill 1111 if g i g 412342 II I 1 ll _ N ro SPCI t m z iR2 5 Y i iWBBjBBB I II II o I 0 I I II 2 3 4 5 0 I I I 0 f pl IL JJ COMPONENT IDENTIFICATION AND LEAD DESIGNATION MLA4 MLB3 14 MLA5 1 40 2 13 3 12 4 11 D 5 10 6 9 7 8 20 21 Top View I Top View 1 16 2 15 3 14 4 13 5 12 6 11 7 10 I 8 9 I Top View 5 _ J m w en en _ 0 t MLA2 MLC2 MLC4 MLC5 MLC6 ...

Page 43: ...SP B4 SW4 c __SWITCH NUMBER ___ LOCATION ON CIRCUIT CARD SWITCH PACK FRAME GROUND r A 14 I SWI I I 1 I l I 3 I 0SW2 I 2 I I 2 IAMCAZ 4 12 I SW3 I 3 5 2A IY I _ ________ TDI ROI I A 10 YO 15 RWO VI 14 RWI I I I 0 SW4 I 4 I1 3A I 1 r0sw1 l 14 14 4A 2 I X sW2 I 13 3 18 2Y 7 2l TD2 3Y 9 TD3 G2A t 1r 1F t r GI J G2B l B Jc Y2 13 RW2 Y3 12 RW 3 3 I SW3 I 12 4 I SW4 I II I I tB 6 28 3B 48 15 l I SEL TD4 ...

Page 44: ...SSI INTERFACE CIRCUIT CARD CIRCUIT CARD COMPONENT LAYOUT 2i7 o rvv P G1l l illJo GD o i Do C I I u D _ 8 tiD 9J Do illJ 1 Do w p 0 w 0 tfJ _o _ _ gl J _ _ l 0 0 TELETYPE f JJL 410746 ASSEMBLY ISSUE CC746 0 0 l 7 ...

Page 45: ...TES MALE TERMINAL 203 GROUND DESIGNATION LOGIC GROUND 5V 5V 12V RETU RNS rh CHASIS GROUND Tl I I 410746 SSI INTERFACE CIRCUIT CARD 1200Pf C2 12V I 12V 7 5K R6 1 5K R4 35V r 180 35V w __ 29v IJ I Rl 29V vvf 1200Pf 1 5V 204 PINS 1 6 7 8 9 1 0 11 12 1 3 A ND 14 OF MLAI ARE ALL CONNECTED TOGETHER ON ISSUE 3A 120K R2 1200Pf C3 I1200Pf C4 5V 3 3K R3 TO LOGIC CARD J301 I SSI IN I I I 10 119usj 5V n_r 5V ...

Page 46: ......

Page 47: ...4 I I I DATA SPEED SELECT OFF I 5 MARK I o l ON 1 SPACE 2 17 I RECEIVE DATA 151 DATA REA DY v SEND DATA TERMINAL READY ANALOG LOO P DATA SPEED SELECT DATA SPEED INDICATOR RECEIVE DATA DATA SET READY CLEAR TO SEND CARRIER DETECT I I 2 20 2 5 1 23 12 3 6 5 8 gl GND GND 1 7 7 1 5V I I L 131 12V I II I 12V NO TE DEFECTIVE TAU S SHOULD BE SENT TO THE TELETYPE PRODUCT SERVICE CENTER FOR REPAIR ON 12 SPA...

Page 48: ...6 Q 0 0 t J t J 9 11 0 1 oDe 9 ooo E ooC ooo I 5 IIi iH i II II II Ill _ II I II J303 II COMPONENT IDENTIFICATION AND LEAD DESIGNATION CR1 CR6 I Cathode 1 Q2 Q4 Collector Q E B c Anode I I Emitter A MLBl 0 MLB3 1 6 MLB7 14 2 5 MLBlO 13 4 12 4 5 6 9 7 8 Top View I 0 II II IL_ _JJ I T I Ql Q3 1 2 3 4 5 6 7 8 Collector EBC Emitter 16 MLB6 15 14 13 12 11 10 9 ...

Page 49: ...A 7 _ __ _ 1 os1 ov La _ 1 2 I r r 1 9 I MLA 2 I 5 V i v I I 9 9 ov Ml 8 d L 3 3 I 5 8 MLAsf10 s 71 4 I LA 5 4 5 9 10 RTSA 1 t 4 I 12Vx 6 J J 8 12V r DATA LOCAL I 3 I2V OFF i 6 LOCAL LINE 12V _J AUTO A NSW I 2 1 r 4 5 _jS A 6 I 5V t HALF I 2 I DUPLEX tHALF FU L LI ov L FuLL 10 13 6 r 5 I R3 5 V L _lr 4___ 6 8K I 5V L MLA5 I I I OV s I 5v II R9 I REC DATA 3 MLA7 2 3 3K I 8 I CHARS PER SECONO I 5V 1...

Page 50: ...u ____ _ A an jJ 00 til am 0 _ l e 2 CR2 ell CR3 o J CR4 I 0 T M TELETYPE X 410755 ASSEMBLY I ISSUE CC755 0 PRESENT ON ISSUE lA AND 2A NOT PRESENT ON ISSUE lA AND 2A COMPONENT IDENTIFICATION AND LEAD DESIGNATION CR1 CR4 Cathode Collector C E B Anode Emitter A Q2 Q1 Collector EsC Emitter MLB3 MLAl 1 16 MLA3 MLB4 1 0 14 MLA2 2 5 1 3 MLB1 2 15 3 4 MLB2 3 14 12 MLBS 11 4 13 5 12 6 9 6 11 7 8 7 10 8 9 ...

Page 51: ...PT SOL MLB4 2 5VI M ov Ls 2 GND 7 7 8 7 7 12 VP 1 202 ALL CAPACITOR VALUES INMICROFARADS UNLESS SPECIFIED 203 INDICATESMALE TERMINAL INDICATES FEMALE TERMINAL 204 LOGIC DESIGNATION INDICATES PACKAGE PINNUMBER 3 INDICATES LOCATION ON CIRCUIT CAR D 205 AT ISSUE 3A RIO IK2W WAS REPLACED BY RIO Rll AND Rl2 EACH 3K 1 2 W 5V ON 12V L__OFF 12V LINE l 0 J302 0 I 20 I I 14 5V n fr MLB4_ __ i5 _ __ 0 6 1 J ...

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