Icom IC-7300, IC-7300M, IC-7300S Schematic Diagrams
y
u
,
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,
o
,
!0
,
!1
,
!2
!6
,
!7
!4
,
!5
!3
q
GENERAL WIRING (GENERAL WIRING-1)
[ALC] [SEND] [ELE-KEY] [TUNER] [DC]
J101
GND
GND
EALC
HSENI
RF UNIT
!3
J201
NC
GND
SKYS
DSHK
W7
8900016990
OPC-1741(1.5DCOAXIAL110MM)
P4
P4
TXRF
RXRF
W3
8970024412
P4
P4
J1001
TXRF TXRF
J1071
RXRF RXRF
1.5DCOAXIAL330MM-2(T)C31/C31
J101
J801
J12
123
J331
123
ESTA
EKEY
4
14V
4
GND
4
3
HV
GND
PA UNIT
!6
2
1
GND
,
HV
!7
8970024631
1.5DCOAXIAL170MM-1 C31/C31
J961
P4
[ANT]
W1
J1001
P4
SCHEMATIC DIAGRAMS
[ACC]
J1
4
8
12
11
12
11
13
J771
1122334
5566778
10
9
13
9
10
USB+
[USB]
2
3
1
4
J601
[REMOTE]
USB-
J691
CIVE
[EXT-SP]
CIV
NCNCNC
J751
SPE
NCNCSPO
SPO
TUNER UNIT
,
!4
!5
FAN
2
J45
FAN-
1
FAN+
RF
NC
FORLP
RF
J1431
J8
RF
NC
J1311
P4
W5
8970024252
P4
1.5DCOAXIAL240MM-2 C31/C31
34567
1
2
J21
NC
NC
FORLP
EALC
SKYS
ALCL
DSHK
8910000500
EALC
DSHK
SKYS
ALCL
DRESHNCGND
MCK
MDAT
MSTB1
HSENI
W21
MCK
MDAT
HSENI
DRESH
MSTB1
TXS
TXS
J71
J601
GND
GND
GND
GND
1
40
GND
GND
101112131415161718192021222324252627282930
GND
GND
2
39
GND
DRIV
IDL
REFLP
ICCV
POCV
FFC-1055 (P0.5N30L150)
89101112131415161718192021222324252627282930
IDL
POCV
ICCV
DRIV
REFLP
GND
GND
8
9
GND
GND
LRXD
PWRK
3
4
38
37
PWRK
LRXD
3R3V
NC
NC
3R3V
LTXD
FRES
6
5
35
36
LTXD
FRES
PSTB
MCK
J301
J1
LCD_B5
LCD_B7
LCD_B6
16
15
14
25
26
27
LCD_B7
LCD_B5
LCD_B6
MDAT
2
1
3
38
39
40
MCK
MDAT
PSTB
LCD_B4
LCD_G6
LCD_G7
LCD_B3
19
18
17
20
W24
8910000520
21
22
23
24
LCD_B3
LCD_G7
LCD_G6
LCD_B4
NC
8V
14V
8V
1
2
34567
8V
NC
8V
NC
14V
LCD_ON
GND
LCD_DE
LCD_HS
LCD_VS
GND
7
34
GND
LCD_CLK
9
8
13
12
11
10
FFC-1056 (P0.5N40L100 S) TJM
28
29
30
31
32
33
GND
LCD_DE
LCD_ON
LCD_VS
LCD_HS
LCD_CLK
FRONT UNIT
START
TXS
THML
DRESH
3R3V
8
7
6
5
4
33
34
36
37
35
TXS
THML
3R3V
DRESH
START
LCD_R7
LCD_G5
LCD_G4
LCD_G3
LCD_G2
25
24
23
22
21
20
17
18
19
16
LCD_G2
LCD_G58VLCD_G3
LCD_G4
LCD_R7
FORLP
NC
REFLP
KEY
HFID1V
DRIDV
9
11
10
30
31
32
KEY
DRIDV
HFID1V
LCD_R6
LCD_R5
LCD_R4
28
27
26
13
14
15
LCD_R4
LCD_R5
LCD_R6
12
29
REFLP
LCD_R3
29
12
LCD_R3
GND
HFID2V
IDL
PWRS
GND
19
18
17
16
15
14
13
8910000220
FFC-1024 (P0.5N40L120)
26
27
28
HFID2V
GND
30
11
GND
PWRS
FORLP
3R3V
NC
32
31
10
9
NC
3R3V
24
25
NC
IDL
3R3V
3R3V
34
33
7
8
3R3V
3R3V
23
GND
NC
35
6
NC
22
GND
5V
36
5
5V
W22
GND
20
21
GND
NC
37
4
NC
GND
21
20
GND
8V
38
3
8V
GND
22
19
GND
8V
39
2
8V
GND
23
18
GND
8V
40
1
GND
24
17
GND
GND
25
16
GND
GND
HV
HV
NC
HV
30
29
28
27
26
11
12
13
14
15
HV
HVNCHV
GND
GND
SDCDNCSDDAT1
SDWP
1
2
34567
J101
8900018810
OPC-1974
(P0.5N12L50)
J2
GND
SDWP
SDCD
SDDAT1
14V
14V
14V
33
32
31
8
9
10
14V
14V
14V
GND
SDDAT0
W25
89101112
GND
SDDAT0
14V
14V
14V
14V
37
36
35
34
4
7
5
6
14V
14V
14V
14V
VDD(3R3V)
SDCMD
SDCLK
8
9
101112
34567
NC
SDCMD
SDCLK
VDD(3R3V)
14V
14V
14V
40
39
38
3
1
2
14V
14V
14V
SDDAT3
SDDAT2
1314
1
2
SDDAT2
SDDAT3
J421
1
2
3
4
56
8600037600
P11*P12CH
(3765-1)
J1801
J51
W11
SX3765
GND
1
GND
GND
2
GND
TSTB4
TCLK
GND
GND
TOE
34567
TOE
GND
GND
TCLK
J1803
4
3
2
1
GND
TSTB1
PHASEI
TSTB2
IMPI
NC
NC
TPWRL
TSTB3
TDAT
FFC-1057 (P0.5N30L65 S)
89101112131415161718192021222324252627282930
TDAT
TSTB1
TSTB2
TSTB4
TSTB3
PHG
4
J761
123
J1802
IREFV
SWRL
W23
8910000530
GND
SWRL
IMPI
IREFV
TPWRL
PHASEI
MICI
MICE
PHO
1
2
3
56
4
NC
NC
J752
SP1
RFCNT(EXT)
CNTRS(EXT)
NC
GND
3R3V
GND
8
9
101112131415161718192021222324252627282930
NC
GND
GND
3R3V
CNTRS(EXT)
RFCNT(EXT)
SPO
SPE
1
2
34
W15
SP
3R3V
NC
NC
3R3V
14V
34567
14V
14V
2
14V
14V
1
14V
MAIN UNIT
,
,
,
CHASSIS
!0
,
!1
,
!2
To upgrade quality, some components may be
subject to change without notice.
A-7290-3EXPrinted in Japan
© 2015–2016 Icom Inc.
w
w
y
GENERAL WIRING (GENERAL WIRING-2)
FRONT UNIT
J2
AFO
10
8V
9
MUDL
8
SQLS
7
6
GND
5
GND
4
MICE
3
GND
2
MICI
1
W1
8600036920
EX2500 P01*J01MA
J1
1
2
3
NC
4
5
6
MIC BOARD
PHONE
BOARD
PHOE
GND
PHO
PHK
RIT BOARD
J2
MFDAK
MFDBK
PSEND
1
2
3
4
GND
MFK
GND
DS1(LCD)
J101
8910
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
R1
R0
GND
VDD
VLED-
1
2
3
4
AFO
8V
MUDL
SQLS
PSEND
PSEND
GND
MICE
GND
MICI
PHOE
GND
PHO
PHK
GND
MFDAK
MFK
NC
MFDBK
GND
VLED+
J451
1
2
3
4
W4
8900018000
OPC-1344A (P1N10L70)
P1
1
2
3
4
78
W3
FFC-1008
8910000070
5
6
7
8
9
10
J401
56
J71
6
5
4
3
2
(P0.5N6L50)
1
R6
R2
R3
R4
R5
G3
R7
G0
G1
G2
B0
G4
B1
G5
G6
G7
B6
B2
B7
B3
B4
B5
GND
CLK
DISP
HSYNC
VSYNC
DE
NC
DISPLAY BOARD
GND
4142
34567
1
2
XR
YD
XL
YU
LCD_DE
LCD_VS
LCD_HS
LCD_ON
LCD_CLK
LCD_B7
LCD_B6
LCD_B5
LCD_B4
LCD_B3
LCD_G7
LCD_G6
LCD_G5
LCD_G4
LCD_G3
LCD_G2
LCD_R7
LCD_R6
LCD_R5
LCD_R4
LCD_R3
GND
GND
PWRK
LRXD
LTXD
FRES
GND
GND
GND
3R3V
3R3V
3R3V
J601
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
To the MAIN UNIT
21
20
19
18
17
16
15
14
13
12
11
NC
10
9
8
7
NC
6
5V
5
NC
4
8V
3
8V
2
8V
1
SCHEMATIC DIAGRAMS
VR BOARD
PBT BOARD
[MAIN DIAL]
3R3V
3R3V
PBBBK
PBBAK
PBABK
PBAAK
PCLEK
J2
1
2
3
4
GND
GND
RFL
AFL
GND
J1
78
1
2
3
4
5
6
J1
1
2
3
4
5
6
W2
FFC-1008
8910000070
78
W1
FFC-1008
8910000070
P1
1
2
3
4
J61
6
5
4
3
2
1
(P0.5N6L50)
J51
6
5
4
3
2
1
(P0.5N6L50)
J201
56
1
2
3
4
GND
GND
RFL
AFL
3R3V
3R3V
GND
PBBBK
PBBAK
PBABK
PBAAK
PCLEK
5V
MAINDBK
MAINDAK
GND
SD BOARD
MICI
MICE
PHOE
PHO
GND
SDWP
SDCD
SDDAT1
SDDAT0
GND
SDCLK
VDD(3R3V)
SDCMD
SDDAT3
SDDAT2
J421
56
1
2
3
4
12
11
10
9
8
7
6
5
NC
4
3
2
1
To the MAIN UNIT
J2
To the MAIN UNIT
13 14
To upgrade quality, some components may be
subject to change without notice.
A-7290-3EXPrinted in Japan
© 2015–2016 Icom Inc.
w
e
BLOCK DIAGRAM (BLOCK DIAGRAM-1)
[DC 13.8V]
REVERSE
D202
CONNECT
DF30SC4M
PROTECT
J20012
[TUNER]
1
2
3
4
14V
EKEY
ESTA
3dB
ATT
MUTE
Q811
KTC2875
D811/D812
x2
BAR64
12
IC211
INA199A2
ID
DET
IDL
T9V
fc=76 MHz
LPF
PRE
DRIVE
BIAS
DRESH
PSTB
MDAT
MCK
Q111
RD01MUS2
RF
AMP
BIAS
Q101
2SK2854
T9V
T9V
IC751
SN74AHC595PW
PWRS
DRIVE
AMP
BIAS
I/O
EXP
Q121
RD15HVF1
DRIDV
Q221
TJ50S06M3L
SW12
CTRL
Q222
RUM002N02
PWR
AMP
BIAS
P9V
TXS
Q131/Q132
RD70HVF1 x2
HEAT
SENS
HFID1V
HFID2V
L1S
L2S
L3S
L4S
L5S
L6S
L7S
RPPS
IC221
BA09FP
+9
REG
Q341/Q342
LDTC143/LDTA114
CTRL
THML
Q771-Q777
LDTC143 x7
Q781-Q787
LDTA123 x7
L1S-L7S
CTRL
T9V
14V
HV
P9V
L1-L7
L1
L2
L3
L4
L5
L6
L7
SW11
SW11
SW11
SW11
14.35-21.45 MHz
SW11
SW11
SW11
0.03-2.0 MHz
LPF
2.0-4.0 MHz
LPF
4.0-7.3 MHzP9V
LPF
7.3-14.35 MHz
LPF
LPF
21.45-33.0 MHz
LPF
33.0-76 MHz
LPF
SW11
SW11
SW11
SW11
SW11
SW11
SW11
SW11
T/R
CTRL
Q778
LDTC143
D961/D962
LRB751Sx2
PWR/SWR
DET
T9V
RPPS
PA UNIT
IC981
NJM2904CRB1
BUFF
IC981
NJM2904CRB1
BUFF
FORLP
REFLP
SCHEMATIC DIAGRAMS
ATT
130dB
SW11
NATT1S
NATT1R
DPDDET
D1311/D1312
MMBD352 X2
ATT
IC1701
BA2903
PHASE
DET
D1201
MMBD452
POWER
DET
Q1612
2SC4116
IC1701
BA2903
D1271
MMBD452
IMP
DET
BUFF
D1505
MMBD452
SWR
DET
Q1611
2SC4116
BUFF SWRL
IC1901
NJM2904CRB1
IC1901
NJM2904CRB1
BUFF
BUFF
SW11
IMPI
IREFV
NATT2S
NATT2R
TUNE
NET
IC2811-IC2841I/O
BU2092FVx4
EXP
PHASEI
TDAT/TCLK/TOE
TPWRL
TSTB1-TSTB4
TUNER UNIT
HF/50 MHz/70 MHz
ANTENNA
To the MAIN UNIT
[ELEC-KEY]
[SEND]
[ALC]
J851
ALC
D1021
BAP70Q
PIN
ATT
EALC
DSHK
SKYS
T5V
SW
IC1031
BGA2866
Q1001 LDTC143
D1001 1SV308
MUTE
D1041
BAP70Q
YGR
AMP
MDAT/MCK
/MSTB1
Q101
LDTC143EE
PIN
ATT
DRIV
IC1301-IC1303
SN74AHC595PWx3
I/O
EXP
SW
CTRL
Q1051
L2SC4081
D1051/D1052
BAR64
ATT
DRESH
HSENI
HAT13
18dB
ATT
HATOF13
x2
Q1061/Q1062
LDTA114/LDTC143
CTRL
HATTS
HPOFS
TXS
Q1111-Q1261
LDTC143 x15
Q1098/Q1110
LDTC143/LDTA114
Q1097/Q1099
LDTC143/LDTA114
Q1096/Q1095
LDTC143/LDTA114
Q1094 LDTA114
Q1093 LDTA114
D1091 L1SS400
HPR1S
HPR2S
B0S
B1S
B2S
B3S
B4S
B5S
B6S
B7S
B8S
B9S
B10S
B11S
B12S
B11TXS
B12TXS
HATTS
HATOFS
HPOFS
HPR1S
HPR2S
HATOFS
Q1092 LDTC143
CTRL
Q1091 LDTC143
CTRL
1.60-74.80 MHz
IC1061
XC6209F502MR
+5V
REG
CTRL
CTRL
CTRL
CTRL
CTRL
CTRL
HPF
8V
B0-B12TXB0S-B12TXS
HAT13
HATOF13
HPON13
HPON13
HPR8
1.60-30.00 MHz
LPF
0.03-1.59 MHz
LPF
1.60-1.99 MHz
BPF
2.00-2.99 MHz
BPF
3.00-4.49 MHz
BPF
4.50-6.49 MHz
BPF
6.50-7.99 MHz
BPF
8.00-9.99 MHz
BPF
10.00-14.99 MHz
BPF
B0
B1
B2
B3
B4
B5
B6
B7
15.00-21.99 MHz
BPF
22.00-29.99 MHz
BPF
30.00-49.99 MHz
54.01-69.99 MHz
BPF
50.00-54.00 MHz
BPF
70.00-74.80 MHz
BPF
50.00-54.00 MHz(TX)
BPF
70.00-72.00 MHz(TX)
BPF
B8
B9
B10
B11
B12
B11TX
B12TX
FORLP
POCV
REFLP
EALC
IDL
ICCV
AMS
NASBS
Q3275/Q3276
2SK3018/KTC4075
Q3275/Q3276
2SK3018/KTC4075
HPR8
HPON13
HPOF13
IC1501
NJM13403
IC1501
NJM13403
Q1521
L2SA1576
IC1501
NJM13403
Q1561
Q1562
ALC-CTRL
Q1511
Q1512
Q1513
ALC-CTRL
ALC
AMP
APC
AMP
ALC
AMP
APC
AMP
LDTA114
LDTC143
RUM002N02
LDTA114
KTC2875
HPR1S
HPR2S
2SC3356Q1411
Q1412/Q1413 LDTC143 x2
PRE
AMP
IC1501
Q1571 L2SC4081
IC1502
NJM2904CRB1
METER
ALC
AMP
AMP
RF
NJM13403
ALC
ALCL
RF UNIT
To upgrade quality, some components may be
subject to change without notice.
A-7290-3EXPrinted in Japan
© 2015–2016 Icom Inc.
w
r
PCM2901E
IC661
USB
CODEC
AMOD
UMOD
A/D
SN74AHC1G32
IC662
BIAS
CTRL
SPS
MIC
AMP
CP2102GMR
IC641
USB
BRIDGE
D/A
ISL5857IAZ
IC1331
D/A
LRXD
PWRS
EEPROM
GT24C128BIC351
PIN
D1251
ATT
BAP70Q
DRESH
AAF
IREFV
BUFF
TC74VHC04FT
IC701
CR-1017
X301
RESET
NJU7704F3IC371
AF
AMP
TC7S66FU
IC681
DC-DC
DC
AMP
UPWS
USQLS
SW12
IF
AMP
CR-1020
X661
(12.000 MHz)
A/D
LPF
REFV
CR-1019
X621
(6.000 MHz)
AGC
AMP
BUFF
TC74VHC04FT
IC701
CI-V
I/F
L2SA1576Q712
Q711 L2SC4081
AFO
ASQLS
HTRAS
BUFF
UMODS
LPF
MICI
SW11
NJU7704F3IC361
VDET
UMOD
TXS
RXS
RTKI
HSENI
SW
IC691
TC7W66FU
AAF
AF
AMP
UCLKS
RX-8803LC
RTC
IC381
EN25Q64
IC391
FLASH
MEMORY
FANV
UCLKS
BUFF
NJM2904CRB1
IC125
FSK
SW
Q1106
KTC4075
UPWS
FANV
VBUS
FAN
CTRL
HFID2VP
HFID1V
HFID2V
HFID1VP
RF
BUFF
NJM2904CRB1
IC135
BUFF
NJM2904CRB1
IC135
TPCF8107Q746
SW
Q747 RUE002N02
START
TC74VHC04IC701
TUNER
I/F
Q852 LDTC143
Q851 LDTA114
HTRAS
ASQLS
SP1
AFONS
J101
SQL
SW
DC-DC
SPS
SEND
SW
ICCV
DC-DC
AMOD
HSENI
J751
1
2
3
4
DC-DC
USB
HUB
PWRS
D/A
+3
REG
A/D
+3
REG
CI-V
I/F
L2SA1576Q692
Q691 L2SC4081
RTKI
HFID2V
J1302
1
2
3
4
5
6
7
8
9
10
11
12
13
D/A
HFID1V
BANV
UMODS DIDV
EALC
BANV
REFV
POCV
PWRK
R2A20169SAIC121
I/O
EXP
IC141 SN74AHC595PW
KEY
EN25QH32A-104HIP
IC902
FLASH
MEMORY
CR-1021
X901
D/A
LTXD
USQLS
J611
DC
AMP
DC
AMP
LPF
IC241
BACK-UP
CTRL
XC6222A321
DC
AMP +3V
REG
XC6209F332MR
IC611
+8V
REG
NJM7808DL1A
IC271
+2.5V
REG
TLV70025DCKR
IC231
VDL
IDL
BUFF
NJM2904CRB1
IC151
REFLP
BUFF
NJM2904CRB1
IC151
REFL_
FORL_
FORLP
DRIVPBUFF
NJM2904CRB1
IC125
DRIV
RZR040P01
SW
Q111
Q112 LDTC143
LDTC143Q643
SW VBUS
LDTA114Q645
SW
LDTA114Q644
SW
AFONS
+5V
REG
XC6209F502MR
IC961
LVDS
DRIVE
SN65LVDS1DBV
IC1212
BPF
XTAL
AMP
IC1221
SN74LVC1G04DCK
DRIV
+8V
REG
NJM7808DL1A
IC276
LDTC143Q642
SW
+3
REG
IC1325
XC6209F332MR
+3
REG
IC1318
BA033FP
AGCV
+5V
REG
XC6209F502MR
IC1241
+3
REG
IC1321
XC6209F332MR
FTXS
LDTC143Q1234
SW
Q1235 LDTA114
LDTC143Q1231
SW
Q1232 LDTA114
FRXS
S-RAM
IC1401
23LC1024T
FTXS
FRXS
50RTS
70RTS
MAIN
HV
PCM1802
MDAT/MCK
H3R3V
3R3V
TPS62110
TPS62110
H3R3V
8V
5V
ADP2370ACPZ
RESET
IF-DSP
(12.288 MHz)
DCCLK
TMS320C6745
CPU
PCM1754
MSTB2
ECK/EDT
/MSTB1/PSTB
14V
R7S721000VCFP
(48 MHz)
IC1001
IC971
IC201
IC221
IC261
IC901
HSK0/HSK1/DRESD/FRWT
IC301
MAIN UNIT
DSPCK/DSPR/FRM/BCLK
/DSTB
2R5V
1R2V
TPS62110
IC211
XC6222A331
IC216
XC6222A331
IC251
FPGA
IC1351
L2SA1576
41.344 MHz
(41.344 MHz)
EP4CE55F23I7N
2SC3356
Q1202
Q1201
CR-932
DACLK
X1201
SN74AHC1GU04DCK
IC1211
FAN
DSC7004S
Q45
RTC_IRQ
/RTC_SCL
/RTC_SDA
IC721
TS462CPT
IC992
MP7741
IC1003
NJM2904CRB1
Q1001 IC1002
TS462CPTTC7W53FK
IC972
LDTC114
IC1002
IC992
TS462CPT
SCPCK/SCPR/SCPX/SCPSS
START/KEYTCON/ESTA/EKEY
5.BAND
10.FSKK
3.HSEND
14V
13.SQLS
NJM2904CRB1
4.START
Q821
7.NC
11.MOD
Q831
1.8V
LDTC143
2.GND
LDTA114
Q802
ACC8V
Q801
IC791
Q803
L2SC4081
9.KEY
6.ALC
[ACC]
DSC7004S
12.AF
L2SC4081
8.14V
FPDX/FPSR/FPSX
[EXT-SP]
[SP]
TR SW
TR SW
LDTC143
LDTC143
USB3R3V
IC621
Q661
Q641
TUSB2046BIVFR
[REMOTE]
H4V
[USB]
SDPWS
To the SD UNIT
To the RF UNIT
CRXD/CBSY
CTXD
HV PDV
UDTXD/UDRXD/UDBSY
DR_AF/DR_RSV/DX_REC/DX_FMT
LCD_R3-R7/LCD_G2-G7/LCD_B3-B7
LCD_DE/LCD_VS/LCD_HS/LCD_ON/LCD_CLK
TO FRONT
TO PA
CIV
IC991
PCM1754
TS462CPT
NJM2904CRB1IC972
5V
H4V
NJM2904CRB1
IC791
5V
H1R18V
DCCLK
TSTB1-TSTB4
TDAT/TCLK/TOE
TPWRL/IMPI/SWRL/PHASEI
To the TUNER UNIT
VDD
SFLSS/SFLCK/SFLD0
SLFD1/SFLD2/SFLD3
H3R3V
H3R3V
H3R3V
USKI
USSENI
Q972 L2SC4081
L2SC4081Q971
AD5V8V
124.033 MHz
F8V
/DCCLK
DSHK/SKYS/ALCL
FPX_AGC/FPX_DET/FPR_MOD/MCLK
/FPCAL/DFR_MOD/DFX_DET/DFX_AGC/CFG
/CAL/STAT/FPRES/DONE/SPDO/SPCK/RSSI
/FPCAL/BCLK/FRM/MCLK
FPX_AGC/FPX_DET/FPR_MOD
SPCS/SPCK/SPDO/SPDI
H3R3V USSPD
5V RFD3R3V
RFA3R3V
8V
8V
8V
8V
FFCLK/FFCS
FFDO/FFDI
SDWP/SDCD/SDDAT1/SDDAT0
SDCLK/SDCMD/SDDAT3/SDDAT2
/DCCLK
To the DISPLAY UNIT
BLOCK DIAGRAM (BLOCK DIAGRAM-2)
SCHEMATIC DIAGRAMS
To upgrade quality, some components may be
subject to change without notice.
A-7290-3EXPrinted in Japan
© 2015–2016 Icom Inc.
w
t
BLOCK DIAGRAM (BLOCK DIAGRAM-3)
DS1(LCD)
LCD
LIGHT
LCD
LCD-TW
VLED-/VLED+
XR/YD/XL/YU
IC101
TPS61161ADRV
LCD
LIGHT
CTRL
R3-R7/G2-G7/B3-B7
DE/VSYNC/HSYNC/CLK/DISP
IC152
UC6528
TW-CTRL
3R3V
BKLV
FROM MAIN
TWDCLC/TWCS/TWDTX
TWBUSY/TWDRX/TWPIRQ
Q2
LDTC143ZE
RDS
TDS
PBAAK/PBABK/PBBAK/PBBBK/PCLEK
RFL/AFL
MFDAK/MFDBK/MFK
CTRL
Q3
LDTC143ZE
CTRL
DS1107
G
R
SEC2462C
3R3V
PBT UNIT
RIT UNIT
SCHEMATIC DIAGRAMS
VR UNIT
[AF GAIN]
[RF/SQL]
SDWP/SDCD/SDDAT1/SDDAT0
SDCLK/SDCMD/SDDAT3/SDDAT2
VDD
To the MAIN UNIT
SD UNIT
S22
PUSH-SWs
[TRANSMIT]
[TUNER]
[P.AMP/ATT]
[CLEAR] [dTX]
[NR]
[NOTCH]
[NB]
To the MAIN UNIT
FRES
LTXD
LRXD
PWRK
MICE
MICI
AFO
AFE
[MENU]
[SCOPE]
[QUICK]
[SET]
[XFC]
[AUTO_TUNE]
[SPEECH/LOCK]
3R3V
FLRXD
FLTXD
PWRK
MICE
MICI
[RIT]
[SPLIT]
[M-CH DN][MP]
[A/B]
[M-CH UP]
[CLEAR]
[V/M]
[TS]
FRONT
CPU
IC501
R5F104LCAFB
MAINDAK/MAINDBK
2SB1132L
Q462
Q461 L2SA1576AR
8V
LIMITER
FUDL
DSC7004SQ492
Q493 LDTA114
Q491 L2SC4081
FTRAS
FSENI
FSQS
PWRDS
PHK
SEND
SW
Q481
LDTC143ZE
SQL
Q1
LDTC143ZE
CTRL
PWRK
[POWER KEY]
HT-191UYG
DS1
MAIN DIAL
5V
EX-2500
MIC UNIT
MICE
MIC
GND
AF OUT
+8V
PTT
SQL
MIC U/D
J1
1
2
3
7
8
6
5
4
PHONE UNIT
J1
DISPLAY UNIT
To upgrade quality, some components may be
subject to change without notice.
FRONT UNIT
A-7290-3EXPrinted in Japan
© 2015–2016 Icom Inc.
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y
FRONT UNIT
PHONE BOARD
J1
[PHONES]
MIC BOARD
2
J1
7
1
8
6
5
3
4
EP402
MPZ2012S601A
EP403
MPZ2012S601A
EP401
MPZ2012S601A
C8
47P
1
MIC
7
MICE
2
+8V
8
AF OUT
6
GND
3
MIC U/D
4
SQL
5
PTT
C404
MMZ1608Y102BT x3
EP11
EP4
EP5
MMZ1608Y102BT x2
EP2
EP3
CP1
SHORT
EP7
MPZ2012S601A
0.01
C401
MMZ1608D301B
EP9
EP10
MMZ1608D301B
0.01
R401
0.01
DS1
R1
Q1
LDTC143ZE
100
HT-191UYG
[TRANSMIT]
[TUNER]
[P.AMP/ATT]
3R3V
8V
1K
R404
100
R403
100
C1
0.01
0.01
0.01
100P
C5
C6
C2
C4
0.01
C7
C3
J2
4
PHK
4
3
PHO
3
2
GND
2
PHOE
1
1
L2SA1576AR
AFO
8V
MUDL
SQLS
PSEND
EP12
MICE
MPZ2012S601A
MICI
0.01
C50
[POWER]
S1
LS37J2
S2
LS37J2
S3
LS37J2
S4
LS37J2
JTAG
J301
12
34
56
To the MAIN UNIT
R462
4.7
Q461
R461
4.7K
J2
10
9
8
7
6
5
4
3
2
1
PBABK
PBBBK
PCLEK
R50
R51
R52
0.01
0.01
C51
C52
0.01
[TWIN PBT]
78
TRSK
TUNK
R1
[AF-RF/SQL]
RV-314
VR BOARD
R301
RESET_INVDD
TOOL0RESET_OUT
NCVSS
J401
4
EP401
3
MPZ2012S601A
2
EP402
1
56
MPZ2012S601A
J421
4
3
2
1
56
2SB1132G
C461
4.7K
R463
R464
100K
J451
MPZ2012S601A x4
EP451
1
EP452
2
EP453
3
4
EP455
5
6
7
EP456
8
9
EP457
10
MMZ1005S601CT
1K
1K
1K
TP90D96AE20S1
AMPK
10K
AFO
MICE
MIC
0.001
S5
LS37J2
S7
LS37J2
AFL
C61
R302
Q462
3
GND
B
1
COM
COM
PBBBK
2
PBBAK
A
PBABK
6
PBAAK
B
4
PCLEK
5
A
PBT BOARD
R61
1K
0.1
GND
1
GND
2
RFL
3
AFL
4
3R3V
5
3R3V
6
1K
1K
R303
RESETI
MMZ1005S601CT
0.01
0.01
CP451
SHORT
C453
C452
MUD
EP454
1
2
3
4
5
6
[NOTCH][CLEAR]
S6
LS37J2
[NB][NR]
S8
LS37J2
78
PHK_
LRB751S
PCLEK
PBABK
PBBBK
J1
R401
22K
D471
SQLS
PTT
J1
78
R481
Q492
J51
PBAAK
12
PBBAK
34
GND
56
2.2K
R12
4.7K
R13
R102
15K
R14
J61
12
34
56
100K
R402
2.2
C403
2.2K
R471
R472
47K
Q481
10K
LDTC143ZE
R491
D491
L1SS400
DSC7004S0
0.01
C491
C471
4.7K
R492
33K
R495
15
R101
3R3V3R3V
RFLAFL
GNDGND
0.01
10K
R53
R54
PWRK
8.2
D401
LRB706F
D472
LRB706F
FSQS
L2SC4081
R493
R496
150
1K
PBBAK
PBAAK
BKLV
1K
R62
1K
C101
PHK
Q491
C53
0.22
FUDL
15K
R11
C54
0.01
0.01
IC101
1
C104
TPS61161ADRV
1
2
3
RFL
C62
LDTA114EE
KI10
6.8K
L102
47U
FB
COMP
CTRL
GND4SW
7
[MENU]
S9
0.1
LS37J2
Q493
VIN
PCLEK
TOOL0
RESETO
PBBBK
PBBAK
PBABK
PBAAK
R494
VLED-
GND
VDDR0R1R2R3R4R5R6R7G0G1G2G3G4G5G6G7B0B1B2B3B4B5B6B7
VLED+
J101
C103
6
22U
L101
5
D101
DB2141300L
MENUK
10K
R501
C501
1
C502
0.1
C503
0.1
47K
To the LCD (FRONT UNIT:DS1)
R4R5R6
R3
1
1
C102
[SCOPE]
S10
LS37J2
R504
10K
1
P120/ANI19/VCOUT0
2
P43/(INTP9)
3
P42/(INTP8)
4
P41/(TRJIO0)
5
P40/TOOL0
6
RESET
7
P124/XT2/EXCLKS
8
P123/XT1
9
P137/INTP0
10
P122/X2/EXCLK
11
P121/X1
12
REGC
13
VSS
14
EVSS0
15
VDD
16
EVDD0
FSENI
FTRAS
GND
CLK
DISP
HSYNC
G3G4G5G6G7
R7
G2
[MP]
SCPEK
S11
LS37J2
MFDBK
MFDAK
TWCS
TWDTX
TWBUSY
60
61
62
63
64
P141/PCLBUZ1/INTP7
P140/PCLBUZ0/INTP6
P01/TO00/TRGCLKB/TRJIO0
P00/TI00/TRGCLKA/(TRJO0)
P60/SCLA017P61/SDAA018P62/SSI0019P6320P31/TI03/TO03/INTP4/(PCLBUZ0)/(TRJIO0)
21
B4B5B6
B3
B7
R103
0.001
0.001
C141
C142
[QUICK]
MPADK
S12
LS37J2
AFL
TWDRX
TWDCLC
58
59
P04/SCK10/SCL10
P02/ANI17/SO10/TxD1
P03/ANI16/SI10/RxD1/SDA10
P77/KR7/INTP11/(TxD2)
P76/KR6/INTP10/(RxD2)
22
23
XFCK
QMENUK
RFL
KI10
KI11
KI12
KI13
49
50
51
52
53
54
55
56
57
P130
P20/ANI0/AVREFP
P75/KR5/INTP9/SCK01/SCL01
P74/KR4/INTP8/SI01/SDA01
24
25
MPADK
SCPEK
P27/ANI7
P26/ANI6
P25/ANI5
P24/ANI4
P23/ANI3/ANO1
P22/ANI2/ANO0
P21/ANI1/AVREFM
P16/TI01/TO01/INTP5/TRDIOC0/IVREF0/(SI00)/(RxD0)
P17/TI02/TO02/TRDIOA0/TRDCLK/IVCMP0 /(SO00)/(TxD0)
P50/INTP1/SI00/RxD0/TOOLRxD/SDA00/TRGIOA/(TRJO0)
P73/KR3/SO01
P72/KR2/SO21
P71/KR1/SI21/SDA21
P70/KR0/SCK21/SCL21
P06/(INTP11)/(TRJIO0)
P05/(INTP10)
P30/INTP3/RTC1HZ/SCK00/SCL00/TRJO0
26
27
28
29
30
31
32
TRSK
TUNK
AMPK
MENUK
CLK
HSYNC
DISP
47K
0.001
C143
R503
P12/SO11/TRDIOB1/IVREF1/(INTP5)/(TxD0_1)
TWPIRQ
DS2
YG
GND
VSYNCDENCXRYDXLYU
4142
34567
8910111213141516171819202122232425262728293031323334353637383940
VSYNC
C144
P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0)
1
2
10
DE
R14110R14210R14310R144
C151
0.001
[SET]
S13
QMENUK
LS37J2
10K
R5F104LCAFB (SX-3765C)
P10/SCK11/SCL11/TRDIOD1
P11/SI11/SDA11/TRDIOC1/(RxD0_1)
P13/TxD2/SO20/TRDIOA1/IVCMP1
P15/SCK20/SCL20/TRDIOB0/(SDAA0)
P55/(PCLBUZ1)/(SCK00)/(INTP4)
P51/INTP2/SO00/TxD0/TOOLTxD/TRGIOB
HR
2
3CS4
IC152
DIN
DCLK
5
AVDD
6
PENIRQ
X+
7
Y+
8
X-
Y-10VSS11IN312IN4
0.1
9
UC6528XBNQ4G
IC501
P147/ANI18/VCOUT1
P54/(INTP3)
P53/(INTP2)
P52/(INTP1)
BUSY
DOUT
DVDD
VREF
P146
1
YGHR411
R2
100
R3
330
17
16
15
14
13
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
SCHEMATIC DIAGRAMS
MFDAK
MFK
R72
Q2
Q3
LDTC143ZE
C152
TWPIRQ
PWRDS
LDTC143ZE
TWDCLC
TWCS
TWDTX
TWBUSY
TWDRX
TWPIRQ
0.1
XFCK
PWRDS
R502
47K
RDS
TDS
RDS
TDS
MAINDBK
MAINDAK
FLRXD
BKLV
FLTXD
KI12
MAINDAK
MAINDBK
MFDBK
KI13
XFCK
KI11
RESETI
C72
0.01
S1
TP90N00AE20
[RIT]
R41
6.8K
R31
R21
R4
R6
G2
G4
G6
B3
B5
B7
DISP
VSYNC
RESETI
R73
C73
6.8K
6.8K
C201
1K
1K
0.01
A
B
COM
[SPEECH/LOCK]
R201
R203
0.1
C611
GND
MFDAK
MFK
MFDBK
GND
[XFC]
S14
LS37J2
[AUTO TUNE]
S15
LS37J2
R22
2.2K
S16
LS37J2
R202
82K
R204
82K
R601
R602
R603
R604
R605
R606
R607
R608
R609
R610
R611
R612
0.01
MFDBK
J1
1
2
3
4
5
6
47K
47K
22
22
22
22
22
22
22
22
22
22
100
22
J71
56
MFK
34
12
78
RIT
BOARD
4.7K
R23
5V
MAINDBK_
MAINDAK_
J601
8V NC
5V NC
3R3V
3R3V NC
GND
LCD_R4
LCD_R6
LCD_G2
LCD_G4
LCD_G6
LCD_B3
LCD_B5
LCD_B7
LCD_ON
LCD_VS
GND GND
FRES LTXD
LRXD PWRK
GND
To the MAIN UNIT
R71
MFDAK
1K
R42
2.2K
J201
56
1
2
3
4
12
34
56
78
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
0.01
C71
[RIT]
S17
LS37J2
R32
2.2K
[SPLIT]
S20
LS37J2
[M-CH DN]
S23
LS37J2
To the MAIN DIAL
EP601
EP602
EP603
8V8V
3R3V
LCD_R3
R613
LCD_R5
R614
LCD_R7
R615
LCD_G3
R616
LCD_G5
R617
R618
LCD_G7
LCD_B4
R619
LCD_B6
R620
LCD_CLK
R621
LCD_HS
R622
LCD_DE
R623
R624
R625
GND
R43
4.7K
S18
LS37J2
R33
4.7K
S21
LS37J2
S24
LS37J2
MPZ1608S601A
MPZ1608S601A
MPZ1608S601A
22
22
22
22
22
22
22
22
22
22
22
22
100
[dTX]
8V
3R3V
R44
15K
[CLEAR]
S19
LS37J2
R34
15K
R24
15K
[V/M][A/B]
S22
LS37J2
[TS][M-CH UP]
S25
LS37J2
C625
0.01
C626
0.1
C627
8V
5V
3R3V
0.1
C628
HSYNC
FLRXD
PWRK
0.1
R3
R5
R7
G3
G5
G7
B4
B6
CLK
DE
To upgrade quality, some components may be
subject to change without notice.
A-7290-3EXPrinted in Japan
© 2015–2016 Icom Inc.
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