Canon 161 Manual page 23

N304Z N304A
3-0 3-9
4-0
IR1 IR1 IR1 IR1 IR2 IR2
-1 -2 -4 -8 -1 -2
30V1 30V2
ME3 ME3 ME3 ME3 ME4 ME4 ME4
-1 -2 -4 -8 -1 -2 -4
ME2 ME2 ME2 ME2 ME1 ME1 ME1
-8 -4 -2 -1 -8 -4 -2
N324Z N324A
7-0 7-9
8-0
IR7 IR7 IR7 IR7 IR8 IR8 IR8
-1 -2 -4 -8 -1 -2 -4
ME11 ME11 ME11 ME11 ME12 ME12 ME12
-1 -2 -4 -8 -1 -2 -4
ME10 ME10 ME10 ME10 ME9 ME9 ME9
-8 -4 -2 -1 -8 -4 -2
Canon 161 Calculator
Section: Board Layout - 30::33
Page: 23 Rendition: 2022 Feb 6
4-9 P.G
FB1 FB2 T-8
nCP-OUT
T-1
CP-OUT
P-8
IR2 IR2
-4 -8
OS.ST
OS FK
OS
ME4
-8 30B6
ME1
-1
N323Z N323A
8-9 9-9
9-0 10-0
IR8 IR9 IR9 IR9 IR9 IR10 IR10 IR10
-8 -1 -2 -4 -8 -1 -2 -4
ME12
-8
32V1
SP-M SP-I
32V2
ME9
-1 32B2 32B1
• Flip-flop transistors are labeled on the physical boards as 0 or 1.
1 is the Q transistor, 0 is the nQ transistor.
• In these diagrams, flip-flop names are closest to the Q transistor.
N314Z
N302Z
3-0
T-4
IR3 IR3 IR3
-1 -2 -4
N302A
ME7 ME7 ME7
N301Z
-1 -2
ME6 ME6 ME6
-8 -4 -2
N301A
N334Z
N322Z
10-9 11-0
IR10 IR11 IR11 IR11
-8 -1 -2 -4
N322A
ME15 ME15 ME15
N321Z
-1 -2
ME14 ME14 ME14
-8 -4 -2
N321A
• Transistors marked in red are those found faulty and replaced in Unit 700369.
N314A N313Z
3-9 4-9
4-0 5-0
IR3 IR4 IR4 IR4 IR4 IR5 IR5 IR5
-8 -1 -2 -4 -8 -1 -2 -4
ME7 ME8 ME8 ME8 ME8
-4 -8 -1 -2 -4 -8 nK(X+R+CM)
ME6 ME5 ME5 ME5 ME5
-1 -8 -4 -2 -1
N334A N333Z
11-9 12-9
12-0 13-0
IR11 IR12 IR12 IR12 IR12 IR13 IR13 IR13
-8 -1 -2 -4 -8 -1 -2 -4
ME15 ME16 ME16 ME16 ME16
-4 -8 -1 -2 -4 -8
nME16D=0
nME1516D=0
ME14 ME13 ME13 ME13 ME13
-1 -8 -4 -2 -1
N313A
N312Z
5-9 6-9
6-0
IR5 IR6 IR6 IR6 IR6
-8 -1 -2 -4 -8
N312A
nKT nKR
N311Z
nKX
N311A
N333A
N332Z
13-9 14-9
14-0
IR13 IR14 IR14 IR14 IR14
-8 -1 -2 -4 -8
N332A
N331Z
SP-A
33V2
33V1
OS+FL EP
33B3
N331A