SCHEMATIC DIAGRAMS
To upgrade quality, some components may be
subject to change without notice.
A-7290-3EX-
w
Printed in Japan
© 2015–2016 Icom Inc.
y
FRONT UNIT
R5F104LCAFB (SX-3765C)
IC501
P120/ANI19/VCOUT0
1
P43/(INTP9)
2
P42/(INTP8)
3
P41/(TRJIO0)
4
P40/TOOL0
5
RESET
6
P124/XT2/EXCLKS
7
P123/XT1
8
P137/INTP0
9
P122/X2/EXCLK
10
P121/X1
11
REGC
12
VSS
13
EVSS0
14
VDD
15
EVDD0
16
P60/SCLA0
17
P61/SDAA0
18
P62/SSI00
19
P63
20
P31/TI03/TO03/INTP4/(PCLBUZ0)/(TRJIO0)
21
P77/KR7/INTP11/(TxD2)
22
P76/KR6/INTP10/(RxD2)
23
P75/KR5/INTP9/SCK01/SCL01
24
P74/KR4/INTP8/SI01/SDA01
25
P73/KR3/SO01
26
P72/KR2/SO21
27
P71/KR1/SI21/SDA21
28
P70/KR0/SCK21/SCL21
29
P06/(INTP11)/(TRJIO0)
30
P05/(INTP10)
31
P30/INTP3/RTC1HZ/SCK00/SCL00/TRJO0
32
P50/INTP1/SI00/RxD0/TOOLRxD/SDA00/TRGIOA/(TRJO0)
33
P51/INTP2/SO00/TxD0/TOOLTxD/TRGIOB
34
P52/(INTP1)
35
P53/(INTP2)
36
P54/(INTP3)
37
P55/(PCLBUZ1)/(SCK00)/(INTP4)
38
P17/TI02/TO02/TRDIOA0/TRDCLK/IVCMP0 /(SO00)/(TxD0)
39
P16/TI01/TO01/INTP5/TRDIOC0/IVREF0/(SI00)/(RxD0)
40
P15/SCK20/SCL20/TRDIOB0/(SDAA0)
41
P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0)
42
P13/TxD2/SO20/TRDIOA1/IVCMP1
43
P12/SO11/TRDIOB1/IVREF1/(INTP5)/(TxD0_1)
44
P11/SI11/SDA11/TRDIOC1/(RxD0_1)
45
P10/SCK11/SCL11/TRDIOD1
46
P146
47
P147/ANI18/VCOUT1
48
P27/ANI7
49
P26/ANI6
50
P25/ANI5
51
P24/ANI4
52
P23/ANI3/ANO1
53
P22/ANI2/ANO0
54
P21/ANI1/AVREFM
55
P20/ANI0/AVREFP
56
P130
57
P04/SCK10/SCL10
58
P03/ANI16/SI10/RxD1/SDA10
59
P02/ANI17/SO10/TxD1
60
P01/TO00/TRGCLKB/TRJIO0
61
P00/TI00/TRGCLKA/(TRJO0)
62
P141/PCLBUZ1/INTP7
63
P140/PCLBUZ0/INTP6
64
LS37J2
S1
LS37J2
S2
LS37J2
S3
LS37J2
S4
LS37J2
S5
LS37J2
S6
LS37J2
S7
LS37J2
S8
LS37J2
S9
LS37J2
S10
LS37J2
S11
LS37J2
S12
LS37J2
S13
LS37J2
S14
LS37J2
S15
LS37J2
S16
LS37J2
S17
LS37J2
S18
LS37J2
S19
LS37J2
S20
LS37J2
S21
LS37J2
S22
LS37J2
S23
LS37J2
S24
LS37J2
S25
J51
1
2
3
4
5
6
J61
1
2
3
4
5
6
J71
1
2
3
4
5
6
DB2141300L
D101
TPS61161ADRV
IC101
1
FB
2
COMP
3
GND
4
SW
5
CTRL
6
VIN
7
0.22
C101
1
C102
1
C103
8.2
R101
15
R102
UC6528XBNQ4G
IC152
1
BUSY
2
DIN
3
CS
4
DCLK
5
AVDD
6
X+
7
Y+
8
X-
9
Y-
10
VSS
11
IN3
12
IN4
13
VREF
14
DVDD
15
PENIRQ
16
DOUT
17
0.1
C151
0.1
C152
22U
L101
6.8K
R11
2.2K
R12
4.7K
R13
15K
R14
6.8K
R41
15K
R44
4.7K
R43
2.2K
R42
6.8K
R31
2.2K
R32
4.7K
R33
15K
R34
6.8K
R21
2.2K
R22
4.7K
R23
15K
R24
0.1
C502
0.1
C503
1
C501
1K
R61
1K
R62
0.1
C61
0.1
C62
HT-191UYG
DS1
J601
1
2
3
4
5
6
7
8
9
10
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
J301
1
2
3
4
5
6
HR
YG
YGHR411
DS2
330
R3100
R2
100
R1
J201
1
2
3
4
5
6
47K
R202
82K
R201
47K
R204
82K
R203
J451
1
2
3
4
5
6
7
8
9
10
MPZ2012S601A x4
EP451
EP452
2.2K
R471
47K
R472
0.01
C471
EP453
MMZ1005S601CT
EP454
LDTA114EE
Q493
150
R496
DSC7004S0
Q492
15K
R493
33K
R492
L1SS400
D491
0.01
C491
L2SC4081
Q491
10K
R495
MMZ1005S601CT
EP457
EP456
MPZ2012S601A
EP401
MPZ2012S601A
EP402
10K
R301
10K
R481
J101
1
2
3
4
5
6
7
8
9
10
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
41
42
22
R601
22
R602
22
R603
22
R604
22
R605
22
R606
22
R607
22
R608
22
R609
22
R610
22
R624
100
R611
22
R612
22
R613
22
R614
22
R615
22
R616
22
R617
22
R618
22
R619
22
R620
22
R621
22
R622
22
R623
100
R625
0.1
C626
0.1
C628
0.01
C625
0.01
C611
2.2
C403
4.7K
R491
100K
R402
LRB706F
D472
LRB706F
D401
LRB751S
D471
LDTC143ZE
Q481
1K
R51
1K
R52
1K
R53
1K
R54
0.01
C51
0.01
C52
0.01
C53
0.01
C54
0.01
C72
0.01
C73
0.01
C71
1K
R72
1K
R73
1K
R71
LDTC143ZE
Q1
100K
R464
0.001
C461
4.7K
R461
4.7
R462
4.7K
R463
L2SA1576AR
Q461
LDTC143ZE
Q2
LDTC143ZE
Q3
47K
R494
1K
R302
10K
R501
10K
R504
1K
R303
0.01
C453
0.01
C452
EP455
SHORT
CP451
MPZ1608S601A
EP602
0.1
C627
MPZ1608S601A
EP601
MPZ1608S601A
EP603
0.1
C201
J421
1
2
3
4
56
47K
R502
10K
R503
22K
R401
47K
R103
J401
1
2
3
4
56
1K
R50
0.01
C50
10
R141
10
R142
10
R143
10
R144
0.001
C141
0.001
C142
0.001
C143
0.001
C144
47U
L102
2SB1132G
Q462
1
C104
MPADK
MENUK
SCPEK
QMENUK
PWRK
TRSK
TUNK
AMPK
TWPIRQ
TWDRX
TWBUSY
TWDTX
TWCS
TWDCLC
RFL
XFCK
XFCK
TWPIRQ
TWPIRQ
PWRDS
TDS
RDS
MAINDBK_
MAINDAK_
MAINDAK
KI10
KI11
KI12
KI13
AFL
RFL
KI12
PCLEK
MAINDAK
MAINDBK
TWCS
TWBUSY
TWDTX
TWDRX
TWDCLC
FSQS
FTRAS
BKLV
BKLV
R4
R5
R6
G3
G4
G5
G6
G7
B4
B5
B6
CLK
HSYNC
VSYNC
DE
PTT
MUD
PWRK
PHK
MAINDBK
AFL
KI10
PBABK
PBBBK
PBAAK
PBBAK
KI13
MFDAK
MFDBK
PWRDS
TDS
RDS
FSENI
SQLS
FUDL
PBAAK
PBABK
PBBAK
PBBBK
XFCK
QMENUK
MPADK
SCPEK
TRSK
TUNK
AMPK
MFDBK
MFDAK
MFK
KI11
AFO
8V
8V
8V
FLTXD
RESETI
VSYNC
DISP
B7
B5
B3
G6
G4
G2
R6
R4
R3
R5
R7
G3
G5
G7
B4
B6
CLK
HSYNC
DE
5V
5V
MENUK
FLRXD
FLRXD
RESETI
RESETI
DISP
PHK_
3R3V
3R3V
3R3V
3R3V
3R3V
PCLEK
RESETO
MIC
MICE
TOOL0
R3
R7
G2
B3
B7
[TS]
[M-CH UP]
[M-CH DN]
[V/M]
[A/B]
[SPLIT]
[RIT]
[dTX]
[CLEAR]
[XFC]
[AUTO TUNE]
[SPEECH/LOCK]
[SET]
[QUICK]
[MP]
[MENU]
[NB]
[NR]
[NOTCH]
[CLEAR]
[P.AMP/ATT]
[TUNER]
[TRANSMIT]
[POWER]
PBT BOARD
VR BOARD
To the LCD (FRONT UNIT:DS1)
VLED-
GND
VDD
R0
R1
R2
R3
R4
R5
R6
R7
G0
G1
G2
G3
G4
G5
G6
G7
B0
B1
B2
B3
B4
B5
B6
B7
GND
GND
CLK
DISP
HSYNC
VSYNC
DE
NC
XR
YD
XL
YU
[SCOPE]
RIT
BOARD
To the MAIN UNIT
JTAG
To the MAIN DIAL
To the MAIN UNIT
NC
VSS
TOOL0
RESET_OUT
RESET_IN
VDD
LCD_G4
LCD_B6
LCD_R3
LCD_ON
LCD_G5
3R3V
LCD_B7
LCD_R4
LCD_G6
LCD_B3
LCD_R5
LCD_VS
LCD_G2
LCD_G7
LCD_B4
GND
LCD_R6
LCD_DE
LCD_G3
LCD_B5
LCD_CLK
LCD_R7
3R3V
8V
8V
FRES
LTXD
LRXD
PWRK
GND
VLED+
RFL
AFL
GND
GND
GND
PBABK
PBBBK
PBAAK
PBBAK
MFK
MFDBK
MFDAK
8V
NC
5V
NC
3R3V
NC
LCD_HS
GND
GND
GND
PCLEK
MMZ1608Y102BT x3
EP5
MMZ1608Y102BT x2
EP2
MPZ2012S601A
EP7
J1
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
MMZ1608D301B
EP9
MPZ2012S601A
EP12
MMZ1608D301B
EP10
EP4
EP3
J2
1
2
3
4
5
6
7
8
9
10
EP11
47P
C8
MIC BOARD
PHONE BOARD
0.01
C2
0.01
C3
0.01
C5
0.01
C6
0.01
C7
100P
C4
0.01
C1
SHORT
CP1
8V
MUDL
MICE
MICI
SQLS
AFO
PSEND
GND
AF OUT
MIC U/D
MIC
+8V
SQL
PTT
MICE
J1
1
2
3
4
5
6
7
8
TP90D96AE20
S1
1
COM
2
A
3
B
4
COM
5
A
6
B
7
8
PBBAK
PBBBK
PBAAK
PBABK
GND
PCLEK
[TWIN PBT]
0.01
C404
0.01
C401
1K
R401
100
R404
100
R403
MPZ2012S601A
EP401
MPZ2012S601A
EP403
MPZ2012S601A
EP402
J1
J2
1
1
2
2
3
3
4
4
PHOE
PHO
GND
PHK
[PHONES]
COM
A
B
TP90N00AE20
S1
J1
1
2
3
4
5
6
7
8
MFDAK
MFK
MFDBK
GND
GND
[RIT]
RV-314
R1
J1
1
2
3
4
5
6
7
8
RFL
AFL
3R3V
3R3V
GND
GND
[AF-RF/SQL]
