Rf Unit - Icom IC-4088SR Service Manual

11-2 RF UNIT

FI3
C43
CFWM450G
470 P
O I
R32
560 k
R+3
R30
15 k
R34
1.5 k
AF
C46
22 P
C47 R64
68 P 100 k
R+3
SENS
IC3
BH2220FVM
5 4
GND VCC
6 3
DI AO3
7 2
CLK AO2
8 1
LD AO1
J2 AXK5S20340
UNLK UNLK
+3V +3V
1 20
PLCK PLCK
MTX-02 _ PSC MTX-02 _ PSC
2 19
DATA DATA
VCC VCC
3 18
PLSTB PLSTB
GND
4 17
DASTB
GND
5 16
DACK
MOD MOD
6 15
GND
AF
7 14
SHIFT SHIFT
R+3 R+3
8 13
T+3 T+3
SQLIN SQLIN
9 12
T+3
SENS
10 11
R: 1.87
T: 0.00
FI2
R9 R8
C23 C89
FL-297
82 k 1 k
0.001 22 P
W8
Q3
2SC4215 0
C121 10
+
+
C72 EP2
0.001 MMZ1608D121B
R: 3.11
T: 3.13
IC2
UPD3140GS
1 20
VCC GND1
2 19
IN1 IN2
3 18
ENB VCC2 R76
4 17
CLK XB 3.9 k
W6
5 16
DATA XI
6 15
T1 XO
7 14
LOK GND2
8 13
CP1 CP2
9 12
FI1 FI2
10 11
FO1 FO2
X2
CR-669
C91
R66
100 k 9 P
FC
R: 0.61
T: 0.00
R77
10 k
SHIFT Q9
2SC4117 GR
R67 3.3 k
R 82
33 k
Q14
2SC4213 B
C59 R41
4.7 15 k
+
R69
1 M
Q12
2SJ144 GR
R78
47 k
11 - 2
R: 0.18
T: 0.00 FI4
C22 R4 C112
NSVS647
8 P 330 k 4 P
1
Q2
2SK320
R: 2.10
T: 0.00
R+3
C111
C61 10 P
5 P W5
R43
8.2 k
+
R39
8.2 k
L22
C57 C53
10 H
12 P 2 P
C50 L19
82 nH
2 P
C56 C51
C52
10 P 0.5 P
2 P Q7
Q8 2SC5108 Y
L23
10 H 2SC5108 Y
MTX-02_PSC
VCC
T+3
NOTES :
Voltage line
Common line
TX line
RX line
Q1
L6 L5
C14 C11 C7
2SC4228R45 12 nH 18 nH
4 P 22 P 7 P
2
R: 2.59
T: 0.00
R: 2.95
T: 0.00
R: 0.00
T: 3.70
+
R: 0.00
T: 3.02
R: 0.00
T: 2.92
C31
33 P
C35 L28
12 nH
5 P Q5
2SC3356
D6 L26 C37
MA2S077 27nH
2 P
Q6
2SC4228 R44
R: 2.34
T: 0.40
R+3
C: 2.87
R48
18
+
C110
6 P
C108
1.5 P Q13
W4
R49
2SC4226 R25
56 k
Q11
2SC4116 GR
D10
MA2S111
D11
MA2S111
ANTENNA
C: COMMON C: COMMON
T: TX
R: RX
L3 L2
C6
17 nH 17 nH
7 P
W7
J1
C3 C5
9210B-1-02R-T
1 P 0.75 P
1
2
C117
0.75 P
L10
0.82 H
R: 0.00
T: 1.61
R+3
T+3
L11
9.5 nH
C30
33 P
Q4
2SK3078A
VCC
Q10
2SA1586 GR
R51
10