Icom IC-F2000 Service Manual page 31

• MAIN UNIT (2/3)
For [USA], [EXP].
PMFM
PMFM
MTDT
MTDT
MTCK
MTCK
NOIS
NOIS
UNLK
UNLK
VCC
VCC
RSTN
RSTN
CENC1
CENC1
PWOFF
PWOFF
S5C
S5C
T5C CTCSS/DTCS FILTER
T5C
R5C S5V
R5C
PLST
PLST
DAST
DAST
SO
SO
SCK
SCK
AFON
AFON
NWC
NWC R12 R13
AUTX DISC
AUTX
FSIO
FSIO 22k 22k
FSCK
FSCK
FSCN
FSCN
MDIO
MDIO
MSCK
MSCK
MDIR
MDIR
MGC0
MGC0
MGC1
MGC1
TMUT
TMUT
DUSE
DUSE
EPTT
EPTT
RSSI
RSSI Q2
CDEC LDTC144EE
R14
CDEC
SDEC
SDEC
AFVI
AFVI 100k
TEMP
TEMP
LVIN
LVIN
14
VOXV +5V +5V
VDD
VOXV
13
BEEP
BEEP CONT1
SENC MGC1 12
SENC CONT4
+5V 11
+5V I/O4
CL 10
CL O/I4 CONT2
9
O/I3 CONT3
8
I/O3
TC74VHC4066AFK
J1
1 R15 R16 R17
0.001
C24 1k 10k 5.6k
R3
1k
R18
470
R332
330
MC1
R333 C424
Q3 10k 0.001
DRA9123Y0
F6027AP
+5V
Q1
EPTT
LDTC144EE
ATX
J3
R8 1.8
1
2
IC1
ISD8102SYI
8 1
VOUTN
Shutdown
7 2
GND VREF
6 3
C29 VDD MODE
5 4
VOUTP VIN
220
C380
J2
R11 0.1
47k
47k
CL
R10
DMC506010R
Q10
Q4
R345 R43
10k 3.9k
LDTC144EE
S5V
R47 R52 R64
CENC1
56k 47k
R31
R30 390k
C45
10
3.3k
Q5 DMG504010
C43
0.1
3
4 DUSE
R28
5 2
R50
22k
6 1
470
R29 R48 R55 R65
CDEC SENC
6.8k 10k 68k 68k
IC2
1
I/O1
2
O/I1
3
R70
O/I2 C47 0.001
4
I/O2
5 PMFM
470
6
7
VSS
IC3
6
7
B
5
NJM2904CRB1
R35
1.8M
IC3 RB706F
2
VOXV
C420
1
A
3 S5V NJM2904CRB1 NJM2904CRB1
0.01
8 8
NJM2904CRB1 D5 V+ V+
IC5 IC7
GND GND
4 4
S5C
VREF
+5V
EPTT
AUTX
LDTA114EE
R5V
Q16
R5C
DTA113ZE
T5V
R41
AFON
Q17
100
R344
C33
AFO
T5C
330 0.47
VCC
Q9
2SB1132L
R61
S5V
1.2k
AFVI
+5V
R155
TEMP
Q42
LDTC144EE
ERTJ0EP473J
CL
IC7
2
R81
1
R66 A
3
4.7k
47k 47k
NJM2904CRB1
Q19
LDTC144EE
NJM2904CRB1
IC5 IC5
6 2
7 1
B R68
R67 R83 A
5 3
68k 68k 68k
NJM2904CRB1
R86
68k 0.01 100k
C115
R89
R87
100k
R101
TXIN FILTERO
19 12 180k
TXINO RXINO
20 11
EXTIN2 RXIN
21 10
MOD AVDD
22 9 6
RSTN VSS1
23 8
MSKDATA DVDD
24 7 5
25
C93 47P
R72
C94 47P
C92 1M
X1
C95 47P
CR-980
47P
NJM2904CRB1 NJM2904CRB1
8 IC3 8 IC11
V+ V+ Q15
GND GND
DTA113ZE
4 4
R343
820
IC19 IC20
5 1 5
VOUT VIN VOUT VIN
2
VSS VSS
4 3 4
NC CE NC CE
XC6209F502MR XC6209F502MR
External Emer key:
To the [SP] Jack
3-conductor 3.5(d) mm plug
"GND"
When the "CL" line is connected to the ground,
the transceiver automatically enters the emergency mode.
C414
C406
0.001
0.001
25
7 24
CSN VOUT7
8 23
BAL
SCLK VOUT6
9 22
SDATA VIN6
10 21
DVDD VIN5
11 20
VSS VOUT5
12 19
AVDD VOUT4
C133
100P
R100
VREF
100k
IC11
2
1
A
3
NJM2904CRB1
C134
120P
IC11
7
B
NJM2904CRB1
1
2
3
+5V
R08717NSFK150S070A103
R27
AFVI
"CL"
[Ext. Emer]
*: Refer to the PARTS LIST for the value and name of component.
10 - 2
+5V
R116 R124
C157
270k 47P
82k
S5V
R126
REF
R5V
180k
IC7
6 T5V
7 VCON
470k
B
5
R5C
R125
NJM2904CRB1 SO
SCK
PLST
NWC
MOD
VCON
SQIN
LVA
T1
T2
LVIN
RSSI
DISC
NOIS
UNLK
FSIO
FSCK
FSCN
TMUT
HV
EP11
F1
1 2
EZJZ0V80010
2 1
3 4
ERBRE3R00V 3621