Icom IC-R2 Service Manual

SECTION 11 VOLTAGE DIAGRAM
11 - 1
• LOGIC UNIT
1
COM0 COM1 COM2 COM3 SEG3 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG2 SEG7 SEG6 SEG5 SEG4 SEG1 SEG0
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
DS8 DLC-7995
BATRY
B2
B3
140
39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
J1
AXK5S40340P
AM
Q26
2SC4081 S
C107
0.22
VP
+3S
+3V
R3V
C35
0.001
R82
47 k
LAMPS
R5
10
DS2
CL-200YG-C-TS
Q3
2SA1588 GR
C41
0.1
Q38
2SC4081 S
KSQL
R172
10 k
S8
JPM1990-2013R
R94
10 k
LIGHT
I1
I2
PDAUL
ECK_I3
PCK_IS
PSTB
C108
0.001
R184
1 k
DBL2
300MC
SHIFT
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
75
SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 HFC VHFC UHFC 800MC GC
74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
IC11
M38267M8L-218GP [USA] only
M38267M8L-222GP other
K1
K2
BAND
V/M
MODE
C51
0.001
C42
0.1
S4
S6
S5
R50
120 k
R49
330 k
R51
120 k
S2
R48
120 k
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
UP
DN
R32
47 k
R33
47 k
R34
47 k
R35
10 k
S9
TP90N00E20-16F-1995
S3
R18
220 k
C52
0.001
C114
0.1
C106
0.1
COM0
COM1
COM2
COM3
SEG31
SEG30
SEG29
SEG28
LIGHT
POWERC
RESET
+3SC
B1
KSQL
B3
B2
R3V
+3S
Q4
2SA1588 GR
R1
4.7 k
R3
47 k
R100
10 k
X1
CR-613
C8
10 P
C9
10 P
ECS
EDA
C123
0.1
+3V
+3SC
R87
220 k
R88
1 M
C40
0.001
Q6
2SA1588 GR
R68
4.7 k
R89
100 k
1
456
Q39
XP6501 AB
R173
2.2 k
R175
5.6 k
R8
33 k
R174
3.3 k
R9
47 k
Q13
DTC114EE
C39
0.1
D14
MA2S111
R67
47 k
C4
33
C96
4.7
POWERC
RESET
IC4
S-81332HG-KC
1 2
3
4
5
IC5
S-80725SL-AN
C98
33
L1
CD54-101KC
D15
1SS372
D3
1SS372
D5
1SS372
C94
1
C17
1
C6
1
C36
1
C19
1
C33
1
C37
0.001
C48
1
D4
MA729
IC3
XC62FP3002MR
C5
0.001
C24
10
C15
47
EX
1
G
3
O
2
IC10
XC6371A351PR
C119
1
C120
1
C121
1
C16
0.001
C116
0.1
C18
3.3
BATRY
R102
100 k
R103
100 k
DC-DC CONV
BATT
R186
100 k
R25
100 k
D1
MA2S111
TCON
R26
33 k
POWER
KFUNC
POWER
DUD
DCK
KTS
6
5
4
2
Q11 XP4213
S7
R79
100 k
R78
100 k
R23
15 k
Q40
2SA1588 GR
R185
3.3 k
S1
S10
JPM1990-2013R
R37
470
KSO
D6
MA2S111
D7
MA2S111
D8
MA2S111
R52
15 k
R86 100 k
R77
100 k
ECS
CS
1
SO
2
WP
3
VSS
4
SI
5
SCK
6
HOLD
7
VCC
8
IC2
X25650S8I-2.5
D10 MA2S111
KS1
R41
82 k
R42
82 k
R91
470 k
R12 100K
R92
470 k
1
2
3
4
6
7
8
IC9
NJM2904V
R14
120 k
C13
0.1
C14
0.0015
C44
0.1
C3
0.1
D9
MA2S111
R90
1 M
C43
0.001
C1
100 P
D13 MA2S111
R24
15 k
ECS
EDA
I1
I2
ECK_I3
PCK_IS
PSTB
SDET
R39
470 k
Q8
DTA144EE
R38
1 M
R40
82 k
C11
0.1
C12
0.039
BEEP
OUT1
1
IN1
2
COM
3
GND
4
VC
5
IN2
6
OUT2
7
VCC
8
IC14
M5222FP
C63
0.1
BATRY
Q18
DTA144EE
R117
470 k
R118
15 k
D16
MA132WK
C74
0.1
C68
0.018
R130
15 k
C65
0.1
R116
47 k
R136
22 k
C67
0.1
R120
180 k
C66
0.1
R121
470 k
R122
180 k
C93
0.018
R119
180 k
R132
10 k
AM
AMS
WFMS
R133
180 k
D17
MA2S111
C86
1
C71
0.0022
C73
0.1
R128
10
R125 15 k
R141
180 k
R149
2.2 k
R127
18 k
R126
18 k
C69
0.0047
C70
0.0047
R123
120 k
R129
47 k
C72
0.0047
R124
10 k
Q17
2SJ144 Y
C77
0.1
R109
1 M
R153
47 k
C76
0.1
C81
0.1
R140
180 k
Q31
2SC4081 S
456
321
Q30
XP6501 AB
R150
820
R108
1 M
C82
0.1
C91
0.1
R112
33 k
R161
8.2 k
C58
0.1
C97
0.1
C90
0.0047
R165
15 k
R159
33 k
Q37
2SJ144 Y
R113
82 k
R164
10 k
C80
0.1
C92
0.1
R137
47 k
C78
0.047
R157
120 k
C79
100 P
C88
4.7
C89
4.7
R166
220 k
IN
1
VREF
2
NF
3
COMP
4
GND
5
OUT
6
TB
7
VCC
8
IC15
TA31056F
C87
1
R138
5.6 k
R156
33 k
C53
0.1
Q24
2SA1588 GR
C60
47
Q23
2SA1588 GR
C61
220
Q36
2SC4081 S
R114
4.7 k
Q41
2SC4617 S
C118
0.47
R179
220
C101
0.001
7 6
4 3 2 1 5
8 9
11 12 13 14 10
IC1
HD74LV00
R182
100 k
R183
10 k
C103
0.1
C100
0.1
Q35
2SA1588 GR
R180
470 k
R181
12 k
J2
HSJ1594-010050
R3V
SQL
C102
100 P
SDET
C57
0.001
WFM
GND
WFM AMS R3V FSET +3V GND PSTB PCK_IS PDAUL VP +3S GND B1 HFC SHIFT ATT DBL1 DBL2 GND GND
SDET RSSI WFMS GND GC 300MC 800MC GND GND UHFC VHFC TRAC B3 B2 GND BATRY BATRY
ADJ ATT K2 K1 AMUTE BATT RSSI RTONE TRAC FSET TCON SQL KFUNC KTS VRC DCK AM WFM CLOUT CLIN BEEP DUD POWER AFON DBL1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
NC NC
OUT
VDD
VSS
3
5
RTONE
3
0
G
I
0
G
I
VRC
BATRY
AFON
UP
DN
E
2
+
+
+
+
+
+
+
+
+
+
1
W2
W3
W5
SP1
2.34
UP: 0
DN: 2.04
MODE: 0
V/H: 2.31
BAND: 1.572
3.01
LIGHT ON: 2.82
2.49
3.13
0
1.34
3.16
1.94
0.94
1.51
AF ON: 2.34
AF ON: 0.663
3.0
13.69
13.03
13.57
3.52
3.01
3.21
2.54
3.2
1.89
2.84
AM: 0
NFM: 3.01
OTHERS: 3.01
NFM: 1.37
AM: 1.44
AM: 1.1
NFM: 1.06
2.39
MUE: 3.0
AM,NFM: 1.31
AM,NFM: 1.67
0.93
3.12
2.42
WFM: 0
1.83
2.97
WFM: 0

Icom IC-R2 Specifications

General

Brand	Icom
Model	IC-R2
Category	Receiver
Language	English