Icom IC R8500 Service Manual Addendum page 23

Jun. 2011
SECTION 11 VOLTAGE DIAGRAM
RF-D UNIT
Q5
1 5
2
3 4
DMC561030
IC1
5
7
6 NJM2904M
R39
100K
CP23
Q6
1 5 5 1
2 4
3 4 3 2
DMC561030
CP24
CP25
Q8
1 5 5 1
2 4
3 4 3 2
DMC561030
MMZ1608Y102BT
MMZ1608Y102BT
MMZ1608Y102BT
MMZ1608Y102BT
Q10
J3
D TC144EU
GND
1
+24
2
F1
3
F2
4
F3
5
F4
6
8 8 1 1
MI5V
7
7 7 2 2
SW CP29 C67*
8
6 6 3 3
F2M CP06S
9
4 4
F1M 5 5
10
+8 C72
11
LDVA 470P
12
AGC EP75 CP30
13
-8 EP76 CP06S
14
GND EP77
15
EP78
MMZ1608Y102BT
MMZ1608Y102BT
R68
MMZ1608Y102BT C68*
MMZ1608Y102BT
8 IC7
V+
GND
4
NJM2904M
3
2
CP36
R105
CP06S
100
CP42
8
CP06S
V+
GND
4
CP43 IC1
CP06S NJM2904M
R41
NJM2904M
3
100K
1
2 IC1
R46
47K
R43
1K
C78 C79
0.001 1
R81
10K
R51
68K
R49 R50
6 IC2
7
5.6K R52 33K
5
NJM2902V
47K
IC2
4
R57
V+ C136
GND 1
270K
11 R80
R56 R58
2
IC 2
1
3.3K R59 47K
3
NJM2902V
NJM2902V
47K
R65
+24
MI5V
150K
R62 R64
13
LVDA IC2
-8 14
3.3K R66 39K
12
NJM2902V
47K
D24
2 3
R69
Q12
1 4
2SK1069
220K
470K
1SS272 Q11
2SK1069
R71 R72
R75 R76
4.7K
3.9K
CP59
R74 68K 47K
CP06S 9
CP61 8
47K
CP06S 10
IC2
NJM2902V
R78
47K
C81
C80
0.001
1
L65
C120
47N
10P
C129
0.001
J4
6
IC 6
R94
C117 C118
1 4
NJM2904M
IC7
5.6 470P 470P
UPC2709TB
1 2 3 5
CP37
CP06S
J2
R107
C112
5.6 470P
21
R118
R6
0
C5
0.0047
C7
C171
5P 820P
R124
1SV271 L4
C3
47 ERJ3GE
0.0047
D6 C4
L3
470P
CP67
0.33U
L2 CP06S
0.56U L5
R2
47K
R16
C6 D5
0.0047
DZ2J150M 470K
R120
0
C21
0.001
C23
C172
CP70 5P
0.001
CP06S
1SV271
L12 L14
C15
D8
0.001 0.27U 0.1U
D10
C16
L16
17N
0.001 C131
1SV217
L13
0.001
0.12U
D9
C18
C17
1SV217
R24
15P
0.001
470K
C40
R122
100P
0.001
10K
0
C36
MA7 7
C173
100P
D14
C29 C30 C32 L26 D15
1SV217
100P 10P 33P 10N
CP73
C31
CP06S
24P
L24 C37
L25
27N L28 0.001
47N
10N
R33
C51
470P
470K
C52
R32 0.001
C146 C54 39
C53
0.001 470P R67
100K
470P
C174 5P
L35
D20
27N
1SV214
C47 C132 1SV214 L36
12P 27P D19 10N
C49
470P
C48 C148
470P 0.001
470P
L72 L67 L69
C125 C126
C107
4P 4P
6.8N 3.9N LL1608
CP78 C139
C123
CP06S 0.001
C134 L59
2P
0.75P
R97
5.6
#617DB
CP1
HK3-S-T
R91
47
IC4
1
L77 L76 L75 G1 G2
2
D1 S1
3
6.8N 8.8N 10N
C108 D2 S2
C142
SPM5001A
470P
C144
1P
2P
L61
#617DB
470K
R119
R7
0
C13
39
0.0047
C10
22P
L9
D7
Q1 C12
3SK324
0.27U 0.0047
1SV271
CP68
CP06S
R121
R17
0
39
C24
10P
D13
Q2 L20
C27
3SK324
0.1U 0.001 1SV271
C22
470P
C14
0.001
R123
R25
0
39
R115
C39
3P CP77
22
Q3 CP06S
D16
3SK324 1SV217 L32 C43 D17
33N 0.001
D34 MA77
1SV217
C38
470P
D26
1SV271
C147
0.001
R116 C55
2P
22 D22
1SV214 L42 C56
Q4
3SK324 D23 15N 30P
1SV214
CP90
C50
0.001
CP91 CP06S
D28
L56
1SV271
3.3N
R89
R109
33K
10K
C106 C105
470P 0.001
L60 C104 C113*
470P
1U
L58 C103
0.001
6
5
C138
4
470P
#617DB
C151 RL1
0.001
D1
1SS355
R1
C152
10
0.001 ARK115
J1
L78 L79 C156 C157
4.7N 100P 100P
LL1608
C154
2P
RL2
ARK115
L43
6
1U
IC3
R106 R37
C57 C59
1 4
10 0.001 0.001 5.6
2 3 5
UPC2708TB
R83
47
CP89 CP06S
L48 L47 L46 D25 C82
17N 15N 10N 0.001
1SV271
1SV271
C86
C88 C84
2P
D27
0.5P 4P
R85
CP06S
47
L81
1U
C166
L55 L54 L52 L74
C167
3.9N LL1608 8.8N LL1608 10P 10P
C97
1P
L82
LL1608
100K
R86