Icom IC-F2000 Service Manual page 43

• MAIN-B unit (for #23~#25, #38, #40, and #48~#50: 2/3)
PMFM
MTDT
MTCK
NOIS
UNLK
VCC
RSTN
CENC1
+3 _ 3V
PWOFF
S5C
T5C
R5C S5V
PLST
DAST
SO
SCK
AFON
NWC
AUTX DISC
FSIO
FSCK
FSCN
MDIO
MSCK
MDIR
MGC0
MGC1
TMUT
DUSE
EPTT
RSSI
Q2
CDEC LDTC144EE
R14
SDEC
AFVI
100k
TEMP +3 _ 3V
LVIN
VOXV +5V +5V
5V
BEEP
SENC MGC1
+5V
VREF
CL
3.3V
J1
R15 R16
C417
1k 10k
0.001
HSJ1102-018540
R3
MP11
1k
OG-503040
R332
330
R7
MC1 22k
R1 R2
R333
1 4 6
VDD OUT R4
2 3 7
6.8k 1k 10k
GND GND
Q3
5
1.2k
DRA9123Y0
SPU0410HR5H IC12
NJM2904CRB1
2
1
3 Q1
LDTC144EE
IC12
NJM2904CRB1
MP13 EP18
MMZ2012Y600B
1 2
3
4
EP19
3620
MMZ2012Y600B
IC1
ISD8102SYI
8
VOUTN Shutdown
7
GND
6
VDD
5
VOUTP
R11
47k
R10
47k
4.4 V
Q4
LDTC144EE
R345 R43
10k 3.9k
CL
S5V
R47
CENC1
CTCSS/DTCS FILTER 56k
R31
390k
C45
10
Q5
C43
4 3
0.1
DUSE
R13 R28
5
2
22k 22k
R50
6 1
470
DMG504010
R48
CDEC SENC
10k
IC2
14 1
VDD I/O1
13 2
CONT1 O/I1
12 3 C47
CONT4 O/I2
0.001
11 4
I/O4 I/O2
10 5 PMFM
O/I4 CONT2
9 6
O/I3 CONT3
8 7
I/O3 VSS
TC74VHC4066AFK
R17
5.6k
R35
R18
1.8M
D5
470
2
VOXV
C420
1 IC5
NJM2904CRB1
3 S5V S5V
0.01
8
IC3A
NJM2904CRB1 RB706F V+
GND
4
S5C
TX: 0 V
6
RX: 5.0 V
7
5 R5V
IC3B
NJM2904CRB1 VREF
+5V +5V
5V
R5C
EPTT EPTT
TX: 5.0 V
AUTX RX: 0 V
T5V
R41
1 AFON
Q17
2
100
VREF DTA113ZE
3
MODE
R344 C33
4 AFO
VIN
T5C
330 0.47
C380
VCC
0.1
VCC
Q9
2SB1132G
VCC
R61
S5V
1k
AFVI
+5V
TEMP
Q42
LDTC144EE
CL
2
R81
1
R52 R64 R66
3
4.7k
47k 47k 47k IC7A
NJM2904CRB1
Q19
LDTC144EE
6 2
7 1
R55 R65 R67 R68 R83
5 3
68k 68k 68k IC5B 68k 68k IC5A
NJM2904CRB1 NJM2904CRB1
R86
68k
R70 R87
470 100k
19 12
TXIN FILTERO
20 11
TXINO RXINO
21 10
EXTIN2 RXIN
IC4
22 9
AK2346A
MOD AVDD
23 8
RSTN VSS1
24 7
MSKDATA DVDD
25
C93
R72
47P
C94
1M
C92
47P
X1
C95
CR-980
47P
47P
5V
IC7 IC3 IC11
NJM2904CRB1 NJM2904CRB1 NJM2904CRB1
8 8 8
8
Q15
V+ V+ V+
V+
DTA113ZE
GND GND GND
GND
4 4 4
4
R343
IC12
820
NJM2904CRB1
Q16
LDTA114EE
IC19
5 1 5
VOUT VIN
2
VSS
4 3 4
CE NC
XC6701B502MR
R155
ERTJ0EP473J
8-5
C414
C406
0.001
0.001
BAL
C133
100P
VREF
R100
100k
2
1
3
IC11A
NJM2904CRB1
R101
180k
C134
120P
6
7
5
IC11B
NJM2904CRB1
2.2 V
14.7456 MHz
1.6 V p-p
+5V
IC20
1
VIN 5.0 V
VOUT
2
VSS
3
CE NC
XC6701B502MR
VCC
AFVI
+5V
REF
R124
82k
S5V
R126
R5V
180k
6 T5V
7 VCON
5
R5C
IC7B
NJM2904CRB1
SO
SCK
PLST
NWC
MOD
VCON
SQIN
LVA
T1
T2
LVIN
RSSI
DISC
NOIS
UNLK
FSIO
FSCK
FSCN
TMUT
HV
HV
EP11
EP16
F1 1 2
MPZ2012S331A
2 1
HV 3 4
ERBRE3R00V
3621
Explanatory notes
VOLTAGE LINE
TX LINE
RX LINE