Icom IC-7400 Service Manual page 81

• PA UNIT (1/2)
J1
TO RF J151
R702
R701 R703
W3
R4
R9
C6
L1
C14
C3
Q1
C1
C7
R74
R16
R2
C2
R5
R3
C4 R6
R73
C11
C8
C19 C9 C12
C18
R1 C13
R10
L2
C5 R8
T8V
H14V
C52
H14V
T8V
DRV BOARD
J21
R1
GND
GND
4
GND R7
GND C1
3
DRI1 DRI1 R2
2
DRI1
1 DRI1
L7
R63 R5
R6
Q2 R3
DRI2
DRI2
DRI2
4
DRI2
3
GND
GND
2 C2 R8
GND GND R4
1
C15 J23
R7
C98 C16
C120
L8
L6
C107
R12
C54
R11
12 - 11
C224
C225
C226
C237
R211
R209
C247
R210
C201 C205
C204 C206
C231
C202 C230
C229
L208
R214
R215
R213
R204
R222
T8V
J22
L21
GND
RL2
GND
GND 1
GND
2
Q1 DRO1 D11
DRO1
3
DRO1 DRO1
4
CP21
L10
C87 C31
C3
C33
Q2
CP22
DRO2
DRO2
DRO2
1
DRO2
2
GND
GND
3
GND GND
4
CP224
J24
L9
R108
R27
L13
CP225
C99 C29
EP3
C32
C119
C20
C117
T8V
CP145
R17
W29
CP146
EP2
R109
C102
R122 R121
C24
R18
L11
Q16
Q15 Q14
L8
C47
R61
T8V
H14V
C45
C103
C46
D4 D8 D5
14V
IC2
R44
C67
C69
C66 C68
C65
Q201
L202
CP104
R202
C248
C243
C208
C249
L203
L206
VPAO
Q202
C212
R212
C211
C235
C233 C210
CP221
C245
C234
CP222
R221 L204
L205
C215 C241
C214 C213
C92
Q205 Q204
R105
L20
R41
C121
C118
Q6
R32
CP117 W7
R26 C110
D13 W14
C35
CP227
L17
C114
CP118
C123
C100
C124
J10
Q5 L18
CP226
C115
C116
R34
R35
R110 CP116
W8
C122
C111
R42
D14
R106
C125
R111
14VS
C126
R81
R28 R38
R82
L19
CP114
C89
C42
R29
R31
C39
C41 C40
C91
C43
C44
R71
C78
C84
C90
D7
F2 F3 C81
F1
RL1
Q9
C83
C82
C79
L23 C85
L22 C80 C86
IC1
IC3
C71
C70 C72 C73
C75
C74
C76
R101
NOTICE: Refer to the PARTS LIST for the value and name of each component.
CP210 CP212
CP209
T8V
T8V
14VS
VPAO 14VS
5V
5V
GND
GND
8V
PA UNIT (2/2)
CP203 CP204
L8
L8
VFOR
VFOR
VREF
VREF
CP206
CP205
DRES
DRES
FSTB
FSTB
MDAT
MDAT
HPAO MCK
HPAO MCK
CP207
CP208
R251
CP216
EP6 EP7
CP223
CP215
CP214
H14V
CP213
J5
PWRS
1
DRES
2
FSTB
3
MDAT
4
MCK
5
5V
6
5V
7
H5V
8
THML
9
8V
10
8V
11
GND
12
T8V
13
GND
14
VREF
15
VFOR
16
GND
17
W1 PGND
18
ICL
19
ICH
20
14V (14VA)
21
14V (14VA)
22
14V
23
14V
24
14V
25
14V
26
14V
27
14V
28
14V
29
HV
30
CP217 R103
C88 D101
CP218
R104
C77
CP219
C95
CP220