Af Unit - Icom IC-M604 Service Manual

12-3 AF UNIT

HV
PWRON
VCC
8V
R8
J5
SB4P-HVQ-A S5V
VCC
VCC
1 AF
VCC
2
GND
3
GND
4
TO MAIN
UNIT
J6
B3B-ZR-SM4-TF
VOL1
1
VOL2
2
GND
3
TO VR
UNIT W1
OPC-1186
AF
R8
J1
28FLT-SM2-TB
SCOUT GND
2 1
HV
R31 C42 C43
4 3
AF
8.2K 0.027 0.027
6 5
SP–
AF
8 7
GND SP–
10 9
BEEP DSC
12 11
RMUTE OPTIN
R32
14 13
OPSTB SCON
8.2K
16 15
GND DATAMN
18 17
MICM DATANM
20 19
FOG EPOE
22 21
DATAH2M PWRON
24 23
DATAMH2 EPSTB
26 25
DATAMH1 DATAH1M
28 27
TO LOGIC
UNIT J2
OPC-1200
J7
EP8
B2B-PH-SM4-TB
MMZ1608Y301C
MIC MICIN
1
MICG
2
TO FRONT
UNIT W1
OPC-1658
J11
B2B-PH-SM4-TB
MIC
1 MICG
2
TO CHASSIS
UNIT W7
OPC-1212
J2
10FMN-BMTTR-A-TBT
GND
1
DET
2
GND
3
MOD
4
HLVL
5
PDATA
6
PCK
7
R8
8
S5V
9
8V
10
TO
MAIN
UNIT J2
OPC-1197
C86
0.0039
R91
6
1K
MOD 7
R89
R90
5
82K 82K
IC8
M5218AFP
Explanatory notes
VOLTAGE LINE
AF UNIT TX LINE
RX LINE
COMMON LINE
HV
PWRON
VCC
8V
R8
TX: 0V
RX: 4.93V
S5V
AF
1 16 1 16
STR V+ STR V+
2 15 2 15
D OE D OE
3 14 HAILOUT 3 14
CLK Q5 CLK Q5
EP3 STRU 4 13 FOGC 4 13
Q1 Q6 Q1 Q6
BLM11B221SB AFSUB 5 12 HAILIN 5 12
Q2 Q7 Q2 Q7
6 11
INCMH MIC/DSC 6 11
Q3 Q8 Q3 Q8
7 10 7 10
INCHM
Q4 Q'S Q4 Q'S
8 9 8 9
GND QS GND QS
EP2
IC17 IC18
BLM11B221SB
BU4094BCFV BU4094BCFV
VOLI2
HAILOUT
C51
1 FOGC
HAILIN
TX: 0V
RX: 5.86V MIC/DSC
C50
1
Q12
INCHM
R54
2SC4116
1M
VBIAS
R37 R38
33K 33K Q13
2SJ144 C48
1
C47
1
C44 IC4
0.0022
BU4066BCF
Q11
1 14
2SC4116 I/O1 VDD
2 13
O/I1 CONT1
3 12
O/I2 CONT4
4 11
INCMH I/O2 I/O4
5 10
CONT2 O/I4
AFSUB 6 9
CONT3 O/I3
7 8
VSS I/O3
MICIN
MUTE-ON: 4.97V
MUTE-OFF: 0V
TX: 4.97V
RX: 0V
STRU
IC8
M5218AFP
8
V+ VBIAS
GND
4
IC7
BU4066BCF
1 14
I/O1 VDD
2 13
O/I1 CONT1
3 12
O/I2 CONT4
4 11
I/O2 I/O4
5 10
CONT2 O/I4
6 9
CONT3 O/I3
7 8
VSS I/O3
VBIAS
IC8
M5218AFP
R87
3
1
120K C83
R85
2 8.2K 0.1
S5V
C84
22P
MICO
R86
1M
Q18
2SK1069
DET
12 - 3
Q1 4.97V IC2
2SB1132 TA78L05F
S5V
O I
Q2
G
DTC144EU R2
2.2K
RCV
D7
INTERNAL SP-ON: 4.87V 1SS355
RL2
INTERNAL SP-OFF: 0V
FTR-F3AA012E
Q9
2SC4116
HLC
RCV
R11 R20
SP
10K
18K
VCC
D5 DAP202K
IC3
C28
LA4425A
47P
Q7
C33 EP4
2SC3326 1 MMZ1608Y301C C37
5
1 470
4
2
3
C31 C40
1 47P
C38
0.1
SP–
S5V
VBIAS
R55
1M
C56
IC5
0.1
BU4066BCF
1 14
I/O1 VDD
13 HAILOUT
2
O/I1 CONT1
3 12
O/I2 CONT4
4 11
FOGC I/O2 I/O4
5 10
CONT2 O/I4
HAILIN 6 9
CONT3 O/I3
7 8
VSS I/O3
C61 R316
1 47K
R57
470K
VBIAS
8 VBIAS
V+
GND
4
IC6
M5218AFP
DET
3 5
IC6
1
7
M5218AFP
MICI 2 6
R75
18K IC6 C76
47P
R68 C75
M5218AFP
18K 0.22
R69
1M
C78
12P
C97
0.1
R74
470K
J3
53307-1471
S5V PCK
1 2
GND PDATA
3 4
OPTIN OPTIN OPSTB
5 6
SCON SCON MICI
7 8
GND DETI
9 10
GND MICO
11 12
DETO
GND
13 14
C96
0.1
HV
PWRON
Q4
VCC
2SA1577
8V
RL1
FTR-P3CP012W1
IC1
8.02V
Q3
TA7808S
DTC144EU
VCC
8V
O I
G
S5V VCC 13.68V
AF
VCC
R202
4.7K
R197 R201 IC10
AF
S5V 8.2K 18K
TA8225LQ
8
V+
GND
4
IC9
IC9
VCC
M5218AFP
M5218AFP
5
7
6
EP7
MPZ1608S221A R203
PW-GND1 14
820K PW-GND2 15
IC9
M5218AFP
3
1
2
S5V
IC11 M5222FP
C200
3.3 R205
1 8
15K OUT1 VCC
2 7
IN1 OUT2
3 6
COM IN2
4 5
GND VC
IC14
NJM2107F
S5V
R207 R208
5
10K 10K
3
4
HLVL 1
2
HLC
VCC
S5V
IC12
IC19
PC357N6J000F
R317 R318
TC7S14FU
33K 1
S5V C222
5 1
0.0047
2
DATANM
4 3
5
3
4 Q22
1
R225
2SC4081
12
2
S5V
IC20
Q23
NJM2107F
DTC144EU
DATAMN
RRXDA1
R230
S5V 10
Q25
Q24
2SC4081
2SK1069
R61
47
S5V S5V
R244
R245
4.7K
47
Q26
2SA1576
DATAMH1
DATAH1M
2.75V
IC13
BU4584BFV
DATAH2M
DATAMH2
RRXDA2
S5V
Q29
2SC4081
Q28
R264 R265
4.7K 47
2SK1069
Q30
2SA1576
C262
1
IC16
BU4066BCF
EP5 C98
1
MMZ1608Y301C 0.1 I/O1 VDD
2
O/I1 CONT1
3
O/I2 CONT4
4
I/O2 I/O4
5
CONT2 O/I4
6
CONT3 O/I3
7
VSS I/O3
MICS1
MICS2
SPS2
SPS1
13.70V
J9
OP-10
HV HV
HV
W1 To
OPC-1175 CHASSIS
UNIT
J10
OP-10
GND
GND
C270
47P
W6
2P-SZN OPTION
SP+
1
SP–
2
TO
CONNECT
VCC
UNIT J5
OPC-1203
C208
0.01
R211
1K
R212
68
1
STBY C209
2 100
TJDET
3
NF2 R215
4
68
IN+
5
C210
PREGND
6
100
IN–
7
NF1
8 C211 47
EMGDET
9
RIP 10
VCC1 11 C212 220
OUT1 12
BS1 13
C213 220
BS2 16
OUT2 17
VCC2
C206
3.3
HLC
J8
B02B-EH-S
HAIL+
D11 1
HAIL–
1SS355
2
TO
CHASSIS
UNIT W2
OPC-1176
COMMAND MIC-ON: 13.16V
Q21
R219 RL3
COMMAND MIC-OFF: 13.56V
2SC4116
10K FTR-F1
Q51
2SB1143
VCC CVCC
R222
470
NMEAIN+
D12
1SS355
NMEAIN-
R301
470
Q53 Q52
2SD1664 2SD1664
NMEAOUT+
CVCC
RTXDA1
J4
20FLT-SM2-TB
CVCC CVCC
2 1
CVCC CVCC
4 3
GND
6 5
NMEAIN– NMEAIN+
8 7
RRXDA1 NMEAOUT+
10 9
GND RTXDA1
12 11
AF/MIC1
14 13
RTXDA2 RRXDA2
16 15
MICG AF/MIC2
18 17
GND GND
S5V 20 19
TO CONNECT
UNIT J4
OPC-1128
RTXDA2
C260
1
C282
0.22
C261
14
1
13
12
11
C283
10
0.22
9
8