Icom IC-4088E, Service Manual

Page: 27 / 29

11-2 RF UNIT
11 - 2
ANTENNA
CPa
L2
17 nH L3
17 nH
C2 6 P
C7
7 P
L4 27 nH
C9 6 P
L5
18 nH L6
12 nH
C10 7 P
C11
0.01
R1 33 k
R2 33
R3 47
C14
10 P
C16 10 P
C17 1 P
C19 470 P
C21 22 P
C22
10 P R4
100 k
R6 1.2 k
R7 470
L8
27 nH R8
1.5 k R9
82 k
R10 820 Q3
2SC4215 0
L10
0.82 H
R11 220
C26 9 P
C27 8 P C30
33 P C31
33 P
C32 8 P
L11
9.5 nH
L12 6.8 nH
L13 33 nH
Q4
2SK3078A
Q5
2SC3356
R12 1 k
L14 22 nH
L15 22 nH
L16
27nH
C35
5 P
R17 6.8 k
R18 220
R19 68
R20 22 k
Q6
2SC4228 R44
C37
3 P L17
18 nH
L18 10 H
L19
82 nH
L20 33 nH
L22
10 H
L23
10 H
Q9
2SC4117 GR
C65 0.022
C66 0.01
R43 8.2 k
R44 4.7 k
R48
18
Q11
2SC4116 GR
R49
56 k
R50 3.3 k
R51
10
J1
9210B-1-02R-T
1
2
L1
15 nH
C1 8 P
C5
0.75 P
C4 10 P
C3
1.5 P
C8 22 P
C6
8 P
L9 2.2 H
FI2
FL-298
C49 10
C85 0.22
FI3
CFWM450E
I O
R31
NSCG16 4BH
103KT
IC1 TA31136FN (D)
1
OSCIN
2
OSCOUT
3
MIXOUT
4
VCC
5
IFIN
6
DEC
7
FILOUT
8
FILIN
9
AFOUT
10
QUAD
11
IFOUT
12
RSSI
13
N-DET
14
N-REC
15
GND
16
MIXIN
X1
CDBC450CX24
IC2
TB31202FN
1
FIN1
2
VCC
3
CP1
4
GND
5
LD
6
CK
7
DATA
8
STB
9
BO
10
XOUT
11
XIN
12
SW
13
GND
14
CP2
15
VCC
16
FIN2
X2
CR-633A
W6
C67 1
Q7
2SC5108 Y
Q8
2SC5108 Y
Q10
2SA1586 GR
C77 0.22
C39 4.7
C59
4.7
C60 0.22
C75 22
L7 27 nH D4 MA2S728
D5 MA2S728
J2 AXK5S20340
+3V
UNLK
CK
MTX-00_PSC
DATA
VCC
PLS0TB
GND
DASTB
GND
DACK
MOD
GND
AF
SHIFT
R+3
T+3
SQLIN
T+3
SENS
R14 1 k
D12 HVC376B
Q12
2SJ144 GR
R70 NTCG16 3NH 681KT
R41
33 k
R40 180
R38 33 k
R37 680
R39
33 k
R35 220
C58 470 P
C57
12 P
C56
12 P
C55 4 P
C53
2 P
C52
2 P C51
0.5 P
C50
1.5 P
C54 470 P
C74 470 P
C104 470 P
C64 0.001
R36 47 k
L21 27 nH
C 88 1
C43
470 P
C42 470 P
C45 470 P
C44 0.1
C48 0.047
C 87 0.1
C86 0.047
C46
22 P
C47
68 P
C23
0.001
C24 0.047
C63 470 P
C62 0.047
C73 0.01
C72
0.001
C20 470 P C18 0.047
C15 470 P
C13 470 P
C12 470 P
C25 470 P
C36 470 P C38 470 P
C34 470 P C33 470 P
C29 0.001
C28 0.001
C99 0.001
D10
MA2S111
W4
W5
R21 680
R22 1 k
R5 4.7 k
R64
100 k
R33 1.2 k
R34
1.2 k
R 65 10 k
R28 1.8 k
R30
15 k
R29
15 k
R27 560 R26 100 k
R32
560 k
C 98 0.001
C102 0.1
C101 0.1
C76 0.1
C40
0.001 C41
8 P
C61
5 P
C103 470 P
R23 180 R24 180
R25
27
C70
22 P
C71 33 P
C92 0.001
R45 10 k
R66
100 k
R46 47 k
R68 10 k
R69
1 M
R67 3.3 k
CPO
C91
47 P
C69 12 P
IC3
BH2220FVM
1
AO1
2
AO2
3
AO3
4
VCC
5
GND
6
DI
7
CLK
8
LD
EP2
MMZ1608D121B
Q2
2SC4226 R25
D8 1SV284
D9 1SV284
D1 MA2S077
D2 MA2S077
D3 MA2S077
D7 MA2S077
D6
MA2S077
Q1
2SC5194
R77
10 k
W8
R80 1 k
R78
47 k
R79 100 k
L24
5.6 nH
FI1
NSVS972
1
3 4 5 6 7
Q13
2SC4213 B
R86 10 k
R 87
33 k
R82 22
R83
47
W9
R84 47
R85 NTCG16 3NH 221KT
FC
UNLK PLSTB CK
VCC
+ 3V DATA
SHIFT
SENS
R+ 3
2
+
+
+
+
+
D11
MA2S111
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
R+3
R+3
R+3
R+3
T+3
R+3
T: 0.00
R: 2.95
T: 0.00
R: 2.98
C: 3.10
T: 0.00
R: 2.00
C: 2.92
C: 2.01
C: 2.99
T: 0.79
R: 0.38
C: 3.04
C: 4.50
T: 0.00
R: 2.68
T: 1.80
R: 0.00
T: 2.08
R: 0.00
T: 1.50
R: 0.00
T: 0.00
R: 2.95
C: COMMON
T: TX
R: RX