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Canon 161 Manual Download Page 16

Canon 161 Calculator

Section: Arithmetic & ACC Register

 Page: 16

Rendition: 2022 Feb 6

S1

D

Q

C

nQ

SP-A

Y

nY

nCA

X

Y

nCA

nX

nY

CA

nX

Y

CA

X

nSM

Y

nFS

X

CA

nFS

X

T-8

S1

SM

T-8

S2

SM

Y

FS

nX

CA

FS

nX

nFS

nFS

T-8

C10•T-8

n(C10•T-8)

S2

nFS

C10•T-8

nS2

C10•T-8

S2

nS2

FS

nFS

FS

n(C10•T-8)

S2

S1

FS

n(C10•T-8)

C10•T-8

S2

nFS

n(C10•T-8)

C10•T-8

S2

D

Q

C

nQ

SP-A

S3

D

Q

C

nQ

SP-A

nS3

S4

J

Q

C

nQ

SP-A

CA

D

Q

C

nQ

SP-A

CA

nCA

F÷

TD1

T-8

CC3

nR
RC

FM

CP

FX

CA

CC3

CA-RES

CA-IN

• Silkscreen labels by edge connections of Board 37 for FS and 
nFS are inverted. Labels in foil are correct.

X

nX

ME

CC6

9ACC

Y

nY

KA

FX

F÷

TD0

T-1

F÷

CC4

FG

CC6

CC3

IR

KA

F÷

CC6

F÷

TD1

T-8

CC3

nFX

CC3

F Z

CC3

K(N+P)

CC0

CC7

nFX

nF÷

KA

CC6

CC1

CC6

CC7

nK(CI+CM)

CC0

FO

CC2+5

CA

N371D N392N

N343W

K

nFP

nFH

FCO

T-9

CC2+5

N371M

N343K

nS1 S1

SP-A

D

Q

C

nQ

J

Q

C

K

nQ

N401A

N372L

N391A N401B

D

Q

C

nQ

J

Q

C

K

nQ

N371A N391B

J

Q

C

K

nQ

J

Q

C

nQ

SP-A

SP-A

SP-A

SP-A

SP-A

ACC

ACC5-8

ACC1-1

ACC11-8

ACC6-1

ACC12-1

ACC15-8

K

18 more 

flip-flops

22 more 

flip-flops

14 more 

flip-flops

S2

nACC15-1

37A2

37A3

37A4

37A5

37A6

37A7

37A8

37A9

37A10

37A11

37A12

37A13

34A30

37A15

37A16

37A17

37A18

37A19

37A20

37A21

37A22

37A23

37A24

37A25

37A26

37A27

37A28

37A29

37A30

37A34

37A32

37A43

37A44

37A38

37A39

37A40

37A41

37A42

37A35

37A36

37A37

37O1-6

37O4-6

37O3-6

37O8

37O9

37O10

37O7

SM

nS4

S1

S2

nS2

nACC15-2
nACC15-4
nACC15-8

FS

T-8

nFS

T-8

FS

nFS

37A1

37O2-6

37B1-10

37V1-0

37V2-1

37V3-1

37V4-1

37V5-1

37O6-6

37V9-1

37V10-1

37O5-6

37B2-13

37V7-1

37V8-1

37A33

37V6-1

37A31

SM

Summary of Contents for 161

Page 1: ...Digit Counter DC 15 Arithmetic ACC Register 16 IR Register 17 ME Register Zero Gates 18 Power Supply 19 Timing Diagram 20 Connectors Nbb1p Nbb2p 21 Connectors Nbb3p Nbb4p 22 Board Layout 30 33 23 Board Layout 34 37 24 Board Layout 38 40 25 Controller Monitor Unit CMU CMU 1 CMU Operation CMU 2 Canon 161 Calculator Section Title Contents Page 1 Rendition 2022 Feb 6 This schematic has been derived th...

Page 2: ... contains the second operand Arithmetic is incorporated in this register ACC Bit stream output ACC15D 0 ACC16D 0 ME Register ME User memory controlled by the A switch and T key ME Bit stream output ME15D 0 ME16D 0 P Counter PC Point Counter Holds the position of the displayed decimal point PC 0 D Counter DC Digit Mark Counter Holds the position of the multiply digit marker DC 0 A Counter AC Counte...

Page 3: ...Machine CC0 CC7 Timing Numeral Encoder K0 K9 W1 W2 W4 W8 KN Overflow Lamp logic supplies display supply V L Power Supply 6543210987654321 16 1 of 10 Decoder Drivers FG Flag FH Flag F Flag FCO Flag FCU Flag 1 of 16 Decoder Drivers 1 of 16 Decoder Drivers A Counter 4 bits AC 0 B Counter 4 bits BC 0 ACC16D 0 ACC15D 0 PC 0 DC 0 K F CC to all sections ME16D 0 ME15D 0 MSD 0 IR16D 0 IR15D 0 IR Register I...

Page 4: ...2 n2 4 n4 8 n8 2V d 0 B77 Nbbcp d 1 B77 Nbbcp d 2 B77 Nbbcp d 3 B77 Nbbcp d 4 B77 Nbbcp d 5 B77 Nbbcp d 6 B77 Nbbcp d 7 B77 Nbbcp d 8 B77 Nbbcp d 9 V L n1 8 1 8 d digit 16 to 1 bb board 30 31 32 33 34 c connector 3 4 p pin A to Z bbAdd0 2 bbAdd1 2 bbAdd2 2 bbAdd3 2 bbAdd4 2 bbAdd5 2 bbAdd6 2 bbAdd7 2 bbAdd8 2 bbAdd9 2 1 n1 2 n2 4 n4 8 n8 Display n8 Display 8 n4 4 n2 2 n1 1 t V a r i a t i o n s 0 ...

Page 5: ...D FS J K IR1 8 D S FX J K CJK 470pF CFF 1nF T A538 IR1 4 JK S F J K IR1 2 JK S FO J K IR1 1 JK S FM J K I R J K FG J K ME Register ME Register FH J K ME16 8 D CD 470pF CFF 1nF RFF 12K RL 3K FP J K M E J K CJK 470pF CFF 1nF RFF 12K RL 3K FZ J K Shift Pulse Generators Shift Pulse Generators Shift Pulse Generators FCO J K CJK 470pF CFF 1nF T A538 SP A MEMC FCU J K SP M MEMC FC1 JK TETC RTE 22K SP I M...

Page 6: ... SC N381P TD1 N372B n2 n4 n8 n16 n1 N381R TD15 N302D 2 4 8 n16 n1 N381V TD16 N352S 2 4 8 n16 1 FD2 Q T nQ S SC FD1 Q nQ S SC 2 n2 4 n4 8 n8 n16 1 n1 CP FB1 Q T nQ FB2 Q T nQ T 1 N302P 1 n1 2 n2 1 n2 T 4 N302R 1 2 T 8 N302S n1 n2 P 8 N302H 2 N343C N372C N361T N382V NTX N364X N381W N402B N341T N351U N381A N391K N372A N381C N361M N402L N402M CP FL D Q C N382U N331R FL nQ nFL TD0 N342J N372D nTE TC T ...

Page 7: ...2A N362Z K N P N311Z N342U N322S N332X N322T FK D Q C nQ OS nS Q SC nR nQ P 8 N302J N352W FK RC N391X N343S N341L N362Y N343T N331N N362X N342A N362R N372P N382S N401T N362W N322N N352F N381S N342X N342W N371U N322P N343R N352M N381K N391W N362V K C B N322R N343B N362S N401E N372W N342D N332W N371V N402H KA N322U N341Y nK X T BC CP K N P FO N302M N342B OS N351Z N361P N382X N391Z N401R NTW N331L N3...

Page 8: ...n1 n2 4 1 2 4 n1 4 CC2 CC5 NTP N321Z N321U N343Y FC1 J Q C nQ CP TC nTE nFL K n FX F CC4 nFM nF nFM AC 0 CC2 KT nF OS CC0 F KT FL T 4 CC0 F CC2 DC 0 F nFG TD15 CC4 CINT3 CINT4 nFM CC5 AC 0 KC 1 n1 FC2 J Q C nQ CP TC nTE K 2 n2 FC4 J Q C nQ CP TC nTE K 4 n4 FZ FX FZ CC0 F KT KC FG CC1 nF KR CC1 KC FX nFM DC 0 CC3 KC IFC1 KC F KT FL T 4 CC7 FX TD16 T 8 CC4 IFC2 to FM Flag FC4 KCI KCM N312S FS F nKR ...

Page 9: ... C nQ K CP N392W FS nFS N312W N343U N371L N343V N371K N401Z NTK N392X EP CC7 F FM nFZ CC4 nFM CC3 CA F J Q C nQ K EP CP OS KS N364U F J Q C nQ K EP CP N401Y F nF N312V N321W N331M N361Z N372N N371Y N382K N392J N401L nFX n FX F nF N342E N381Z N402R N302C N321N FH nFM nAM16D 0 T 4 nF CC2 nFH F nACC15D 0 T 4 nFM CC5 FH F nME1516D 0 T 4 nFM CC5 nFM FG nIR16D 0 CC1 nFH nFM nIR16D 0 T 4 CC2 N382L N362A ...

Page 10: ...age 10 Rendition 2022 Feb 6 N362N K E S F OS CC1 FH FO T 4 CC5 K CC1 OS FL FX KT OS AC 0 F nDC 0 T 8 FM CC2 nFM PC 0 nAC 0 CC3 EP N351E N364J CINT6 N364B N351D nFM CC1 AC 0 OS K 40A3 40A4 40A5 40A6 40A7 40A8 36A23 36A24 36A25 36A26 36A27 36A28 35A5 36A29 36A30 34A3 34A4 34A5 39A9 39A10 34O3 36O11 36O10 40O1 39O3 FZ J Q C nQ K CP N402W N322W N364Y N402T nFZ N321V N392K FZ FX CC4 DC 0 KA F nFA CC3 F...

Page 11: ...N382H nFM N343X N352P TD16 FM enable clocking of registers counters FO CC2 5 AC 0 nFO TD15 CC1 TD1 KB TD15 CC2 5 TD0 T 8 FG CC1 FC4 SFM N361L N371S N391L N352J N362T N392P N401W NTA CINT3 CINT4 FC2 K X R CM B C KN N381L N391V 38A4 38A5 38A6 38A7 38A8 38A9 38A10 38O2 38O1 6 KCI KT K N311W K P E S T CI N302F KP N392A K E S KC KCM KB KR KX N311X N391Y 31O2 1 31O4 2 CC0 OS OS OS FL 39A11 39A12 39A13 3...

Page 12: ...FABDP 36A15 36A16 36A17 36O6 36O7 FB J Q C nQ K CP RFB SFB CC2 5 input to gate 34A6 labeled on board as CC5 OR Diode for connection between 36A34 36O20 is labeled and installed as AND DA red rather than DO green FM CC5 FP KR nBC 0 OS CC0 AC 0 CC7 FX KP N364L N341P N364A N341R F CC2 36O16 FD J Q C nQ K CP CC7 AC 0 nAC 0 CC7 TD0 K N P T F OS CC0 FX CC3 FX CC1 SFBD 36A49 36A50 36A51 36A52 36A53 36O19...

Page 13: ...b TC b N401S NTE AC1 J Q C nQ R RC K CP AC2 Q nQ R RC P 8 N392Y AC 0 N351C N392Z nAC 0 N361X FM nTE a TC a nTE b TC b CP CP AC4 Q nQ R RC nTE a TC a nTE b TC b CP AC8 Q nQ R RC nTE a TC a nTE b TC b N352N N361U EP EP EP EP FA CC2 5 nFP REV NOR N382F NTD K N P T CC0 F KR CC1 OS N341K N364F FG CC1 FZ F CC1 BRN BCRVS N341D N364H 39A14 39A15 36A37 36A38 36A45 36A46 34A7 34A8 34A10 39A16 36O14 36O17 RE...

Page 14: ...329 N353S B329 N353N B329 N353K 2V DP1 DP4 DP7 DP10 DP13 1 n2 n4 n8 n1 n2 4 n8 1 2 4 n8 n1 2 n4 8 1 n2 4 8 THOU1 B329 N353Z DP0 N352X nPC 0 N361V KB CC0 FM KC FP F KR OS N351V N364S F CC1 FG CP CP CP 2 n2 4 n4 8 n8 35A6 35A7 35A25 2 35A26 2 36O18 35O2 V L V L 2V 2V 35A9 2 35A10 2 35A11 2 35A12 2 35A13 2 n1 2 n4 n8 1 n2 4 n8 n1 n2 n4 8 1 2 n4 8 n1 2 4 8 35A14 2 35A15 2 35A16 2 35A17 2 35A18 2 1 2 n...

Page 15: ...12 MK15 DC1 J C R RC K CP P 8 FM CC4 FX rD RDF N351R DC 0 N342H N381U N361S n4 n2 1 n8 N351S DC 1 N402P 4 2 1 8 N351T DC 15 N402N 33 10 2V B329 N354Z MK0 n1 n2 n4 n8 CC1 THOU3 THOU2 nDC 0 N351P N402E KR CC1 OS EP N364P N352E Q nQ 1 n1 DC2 Q T nQ R RC DC4 Q T nQ R RC DC8 Q T nQ R RC CP CP CP 2 n2 4 n4 8 n8 35A28 35A29 35A35 1 35A36 1 35A37 1 35A38 1 35A39 1 35A40 1 35A41 1 35A42 1 35A43 1 35A44 1 3...

Page 16: ...FZ CC3 K N P CC0 CC7 nFX nF KA CC6 CC1 CC6 CC7 nK CI CM CC0 FO CC2 5 CA N371D N392N N343W K nFP nFH FCO T 9 CC2 5 N371M N343K nS1 S1 SP A D Q C nQ J Q C K nQ N401A N372L N391A N401B D Q C nQ J Q C K nQ N371A N391B J Q C K nQ J Q C nQ SP A SP A SP A SP A SP A ACC ACC5 8 ACC1 1 ACC11 8 ACC6 1 ACC12 1 ACC15 8 K 18 more flip flops 22 more flip flops 14 more flip flops S2 nACC15 1 37A2 37A3 37A4 37A5 3...

Page 17: ... I IR16 8 D Q C nQ SP I IR16 1 D Q C nQ SP I D Q C nQ SP I IR16 4 IR16 2 nIR16 2 IR16 4 IR16 2 DC 0 FX nMSD 0 T 8 CC3 G J IR16 2 nIR16 2 N342N MSD 1 FO CC1 ME nF KR ACC F FG ACC CC4 ME CC7 G I N371R N342S FG F FO K N P CC7 KCI KR CC0 CC2 5 CC4 CC6 G II N371P N342R K C B 33K 33K 33K 14 more flip flops 14 more flip flops 34A12 37A45 37A46 37A47 37A48 37A49 32A11 4 34A13 34A14 30A10 37A50 37A51 37A52...

Page 18: ...IR16 2 nIR15 4 nIR15 8 nIR15 2 nIR16 1 nIR15 1 N341C nIR15D 0 N401P N342L nIR16D 0 N352U nIR16 8 N342K nMSD 0 N402A nIR16 2 nIR16 4 nIR16 8 N343L nAM16D 0 N361D nIR N361E CC6 ACC nKT CC7 ACC nKT FO CC6 CC2 5 CC7 K C B CM G M N372X N332E 9ME nFP nFH FCU T 9 CC2 5 N343J Canon 161 Calculator Section ME Register Zero Gates Page 18 Rendition 2022 Feb 6 14 more flip flops 33K 33K 14 more flip flops 14 m...

Page 19: ...F N312H N322H N332H N401J N391J N381J N371J N361J N351J N341J N331J N321J N311J N301J N312K N322K N332K NS9 NS10 N352Z N342Z N332Z N322Z N312Z N302Z 2V 2V 2V 2V 2V Canon 161 Calculator Section Power Supply Page 19 Rendition 2022 Feb 6 E 10V 10V 2V N302V 100 15V FAN DC 1 6A 12V 12 6V DC 2 5A to display lamps 390 30 15V 30 15V 30 15V 2 of 30 15V 100 15V 30 15V 100 15V 30 15V 100 15V to keyboard V L ...

Page 20: ...ly appear on an oscilloscope with more positive voltage vertically higher on the trace In contrast for logic levels logic 1 is the lower level of a trace and logic 0 the higher level One cycle of FM during an operation is shown here SP x TDx and FL are only active during FM During some states these signals may vary from those shown here As measured CP cycle time is 105 µS 9 6 KHz with 0 pulse of 1...

Page 21: ...KR B KOR B nFM A nMSD 0 A K P CI A FX A T 8 A F A FO A KR A A A KCI A K N P A N401 N401 N391 N391 N381 N381 N371 N371 N361 N361 N351 N351 N341 N341 N331 N331 N321 N321 N311 N311 N301 N301 nFS Z OS Z n FX F Z CC4 Z nF Z OS Z CC1 Z SP A Z CC5 Z nKX Z KN Z F Y K X C Y CC4 Y F Y OS FL Y CC4 Y nK X T Y CP Y nFP Y KOR Y KP Y nME1516D 0 nME1516D 0 X KS X nFG X FG X nAC 0 X FX X nFP X FM X CC2 X K X C X K...

Page 22: ...D IND16 6 D IND12 6 D IND8 6 D IND4 6 D IND2 6 D C DC15 C IND16 7 C IND12 7 C IND8 7 C IND4 7 C IND2 7 C SFH B B IND16 8 B IND12 8 B IND8 8 B IND4 8 B IND2 8 B RFB A A IND16 9 A IND12 9 A IND8 9 A IND4 9 A IND2 9 A N353 N353 N343 N343 N333 N333 N323 N323 N313 N313 PC0 Z CP Z IND13 0 Z IND9 0 Z IND5 0 Z PC1 Y CC4 Y IND13 1 Y IND9 1 Y IND5 1 Y PC2 X nFM X IND13 2 X IND9 2 X IND5 2 X PC3 W C A W IND1...

Page 23: ... 8 ME13 4 ME13 2 ME13 1 IR11 1 IR11 2 IR11 4 IR11 8 IR12 1 IR12 2 IR12 4 IR12 8 IR13 1 IR13 2 IR13 4 IR13 8 IR14 1 IR14 2 IR14 4 IR14 8 OS FL EP 33V2 33V1 3 0 3 9 4 0 4 9 5 0 5 9 6 0 6 9 ME7 1 nKX nK X R CM ME7 2 ME7 4 ME7 8 ME8 1 ME8 2 ME8 4 ME8 8 ME6 8 ME6 4 ME6 2 ME6 1 ME5 8 ME5 4 ME5 2 ME5 1 IR3 1 IR3 2 IR3 4 IR3 8 IR4 1 IR4 2 IR4 4 IR4 8 IR5 1 IR5 2 IR5 4 IR5 8 IR6 1 IR6 2 IR6 4 IR6 8 nKR nKT...

Page 24: ...Z N351A N351Z N352A N352Z N364A N364Z RFABDP SFBD RFAP SFABP SFAP N353A N353Z 0 15 0 15 DC 8 DC 4 DC 2 DC 1 FD N354A N354Z PC 0 nPC 0 DC 0 nDC 0 DC 15 DC 1 35B8 PC 8 PC 4 PC 2 PC 1 FP FO 35B1 35B6 35V8 35B5 35V7 35B7 35V9 35B4 35V6 35V5 FH OF DRV MARK DRIVERS DP DRIVERS N343A N343Z N344A N344Z 15 0 15 9 16 0 16 9 IR15 1 IR15 2 IR15 4 IR15 8 IR16 1 IR16 2 IR16 4 IR16 8 BC 8 BC 4 BC 2 BC 1 BC 0 nBC ...

Page 25: ...5 1 40B2 40B3 ACC1 1 ACC3 4 ACC2 1 ACC3 1 ACC4 1 N401A N401Z N402A N402Z ACC5 8 F FG FZ 40B1 FC4 FC2 FC1 CC7 CC1 CC2 CC5 CC6 CC4 CC3 CC2 5 FD8 FD4 FD2 FD1 FL FM 38B3 TD16 TD15 38B2 38B5 nFM 38B4 SFM 38B7 38B8 38B6 ACC8 2 ACC10 1 ACC6 1 ACC8 4 ACC7 1 ACC8 1 ACC9 1 ACC10 8 ACC11 1 ACC11 8 FCU FA 39V1 NOR 39V2 REV 39V3 nAC 0 39V4 AC 0 AC8 AC4 AC2 AC1 FS F ...

Page 26: ...U1b U7a U7b U7c U7d U2a U2b U8b AC 0 nAC 0 BC 0 nBC 0 3 1 21 13 24 2N3904 2N3906 25 470 LED Driver SIG 2N3906 CC1 CC2 CC3 CC4 CC5 CC6 CC7 FA FG FH FP FS FZ AC 0 BC 0 LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver LED Driver 14 15 16 17 18 19 20 6 10 11 5 12 9 7 8 U6b 5 4 3 6 3 1 2 U8a 10n Sto...

Page 27: ... the rest of the calculator The functioning of this gate is controlled by the keys of the CMU and the keys of the calculator Calculator Keys The pressing of a calculator key enables clock pulses This enables FK to clock and pick up the keypress from OS ST Clocking is disabled when OS is asserted Normal Calculator Mode C Enables normal delivery of clock pulses Repeat Mode R Repeatedly allows one cl...

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