![background image](http://html1.mh-extra.com/html/icom/ic-r20/ic-r20_service-manual_3569421016.webp)
Jan. 2010
15
The combination of top side and bottom side of this
• LOGIC UNIT
(BOTTOM VIEW)
J9
LCD
J5
1
40
20
21
LD2
+3S
GND
B_VCO2
B_VCO3
B_VCO4
PLLCK
PLLDATA
STR2
HFC
B1C
B2C
B3C
D
CLK
LD1
EAR
A_VCO1
A_VCO2
GND
B_DET
B_R3V
GND
B_NOISE
B_RSSI
+3V
GND
PLLBSTB
PLLDSTB
VP
GND
PLLESTB
PLLCSTB
PLLASTB
RFO
A_DET
A_R3V
GND
A_NOISE
A_RSSI
to RF UNIT J1
[L-DIAL]
[R-DIAL]
[DC]
[SP/CI-V]
Li-ion Battery
+
–
CP2
CP4
CP1
CP3
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C16
C22
C23
C24
C26
C27
C28
C30
C31
C34
C35
C37
C38
C39
C40
C41
C42
C43
C44
C45
C46
C47
C48
C49
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64
C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
C75
C76
C77
C78
C79
C80
C81
C82
C83
C84
C85
C86
C87
C88
C89
C90
C91
C92
C93
C94
C95
C96
C97
C98
C99
C100
C101
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C122
C123
C124
C125
C126
C127
C128
C131
C132
C133
C134
C135
C136
C137
C138
C139
C140
C141
C142
C143
C144
C145
C146
C147
C148
C149
C150
C151
C152
C153
C154
C155
C156
C157
C158
C159
C160
C161
C162
C163
C164
C165
C166
C167
C168
C169
C170
C171
C172
C174
C179
C181
C184
C186
C187
C188
C189
C190
C191
C192
C193
C194
D2
D5
D8
D7
D10
D11
D13
D14
D18
D20
D21
D22
D23
D24
D25
D32
D33
D37
EP6
EP8
EP13
IC1
IC2
IC3
IC4
IC5
IC6
IC7
IC8
IC9
IC11
IC12
IC13
IC14
IC15
J3
J5
J6
J9
L1
Q3
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15
Q16
Q17
Q19
Q20
Q21
Q22
Q23
Q24
Q25
Q26
Q27
Q28
Q29
Q37
Q38
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R13
R15
R17
R18
R20
R21
R22
R24
R25
R26
R27
R28
R30
R31
R33
R34
R35
R36
R39
R40
R41
R42
R43
R45
R47
R51
R52
R54
R56
R57
R58
R59
R60
R61
R62
R63
R64
R66
R67
R68
R69
R70
R71
R72
R73
R74
R76
R77
R82
R83
R84
R85
R86
R87
R88
R89
R90
R91
R93
R94
R95
R96
R97
R98
R99
R100
R101
R103
R104
R105
R106
R107
R108
R110
R111
R112
R113
R114
R115
R116
R117
R118
R119
R120
R121
R122
R123
R124
R125
R126
R127
R128
R129
R130
R131
R132
R133
R134
R135
R136
R137
R139
R140
R141
R142
R143
R144
R145
R146
R147
R148
R149
R150
R151
R152
R153
R154
R155
R156
R157
R158
R159
R160
R161
R162
R163
R164
R165
R166
R167
96
1R
86
1R
R170
R172
R174
R175
R176
R177
R178
R179
R180
R190
R191
R200
R201
R203
R204
R205
R206
R207
R208
R209
R210
R211
R212
R213
R214
R215
R216
R217
S24
S25
X1
X2
H0
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H55
H60
H65
H70
H75
H80
H85
H90
H95
H100
H105
H110
H115
H120
H125
H130
V0
V5
V10
V15
V20
V25
V30
V35
V40
V45
V50