Front Unit; Phone Board; Mic Board - Icom IC-7300 Schematic Diagrams

FRONT UNIT

DS1
HT-191UYG
[TRANSMIT]
[P.AMP/ATT]
3R3V
8V

PHONE BOARD

VDD
RESET_OUT
VSS
J1
EP402 R404
J2
4
PHK
100 4
MPZ2012S601A
PHO 3
EP403 R403 3
GND 2
2
PHOE 1
MPZ2012S601A 100 1
EP401
MPZ2012S601A
L2SA1576AR

MIC BOARD

C8 C1
47P 0.01
J1 MMZ1608Y102BT x3
1 MIC EP11
7 MICE EP4 MMZ1608D301B
1 7
2 +8V EP5 EP9
AFO
8 AF OUT EP10
6 8V
GND MMZ1608Y102BT x2
2 8 6
3 MIC U/D EP2 MMZ1608D301B MUDL
4 SQLS
SQL EP3
5 PTT CP1 PSEND
3 5
SHORT
4
EP7 EP12
MICE
MPZ2012S601A
MPZ2012S601A
MICI
R1 Q1
LDTC143ZE
100
J51
1K
R50 PCLEK PBAAK R53
1 2
R51 1K PBABK PBBAK R54
3 4
R52 1K PBBBK GND
5 6 1K
1K
S1 TP90D96AE20
3 J1
GND
B 1
1 PBBBK
COM 2
2
PBBAK
A 3
PBABK
[POWER]
4
6 PBAAK
B 5
S1 4 PCLEK
COM 6
5
A
7 8
PBT BOARD
LS37J2
PWRK
[CLEAR] [NOTCH]
TRSK
S2 S5 S6
IC101
TPS61161ADRV
LS37J2 LS37J2 LS37J2
1
FB
2
COMP
3
GND
[TUNER] [NR] [NB]
TUNK
S3 S7 S8
LS37J2 LS37J2 LS37J2
J61
3R3V 3R3V [MENU]
R61 1 2 R62
AFL RFL
S4 3 4 S9
1K GND GND
5 6
1K
R1
LS37J2 GND J1 LS37J2
1
GND
2
RFL
3
AFL
4
3R3V
5
3R3V
RV-314 6
VR BOARD
J301
RESET_IN RESETI
1 2
TOOL0
3 4
NC
5 6
PHK
D401
J401
R401
PHK_
4
EP401
3 22K
MPZ2012S601A
2
EP402
LRB706F
1
MPZ2012S601A
FUDL
D472
R472
D471
MUD LRB706F
J421
LRB751S 47K
AFO
4
3
MICE
2
MIC
1
Q481
SQLS FSQS
Q462
LDTC143ZE
2SB1132G
R462
4.7
Q461
R461
R464
4.7K
100K
J2 J451
MPZ2012S601A x4
EP451
10 1
EP452
9 2 L2SC4081
EP453
EP454
8 3 Q491
7 4 D491 R492
EP455 PTT
6 5
MMZ1005S601CT
5 6
L1SS400 33K
4 7
EP456
8
3
2 9
EP457
1 10
MMZ1005S601CT
Q492
Q493
DSC7004S0
R496
150
LDTA114EE
To the LCD (FRONT UNIT:DS1)
J101
42 41
IC152
L102
5
47U
6
7
6 8
VIN
5
CTRL D101
4
SW
DB2141300L
[SCOPE] [MP] [QUICK]
[SET]
S10 S11 S12 S13
LS37J2 LS37J2 LS37J2 LS37J2
R504
R503
10K
10K R5F104LCAFB (SX-3765C)
1
P120/ANI19/VCOUT0 P147/ANI18/VCOUT1
PCLEK 2
P43/(INTP9)
3
P42/(INTP8) P10/SCK11/SCL11/TRDIOD1
4
P41/(TRJIO0) P11/SI11/SDA11/TRDIOC1/(RxD0_1)
TOOL0 5
P40/TOOL0 P12/SO11/TRDIOB1/IVREF1/(INTP5)/(TxD0_1)
RESETO 6
RESET P13/TxD2/SO20/TRDIOA1/IVCMP1
PBBBK 7
P124/XT2/EXCLKS P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0)
8
PBBAK
P123/XT1 P15/SCK20/SCL20/TRDIOB0/(SDAA0)
9
P137/INTP0 P16/TI01/TO01/INTP5/TRDIOC0/IVREF0/(SI00)/(RxD0)
PBABK 10
P122/X2/EXCLK P17/TI02/TO02/TRDIOA0/TRDCLK/IVCMP0 /(SO00)/(TxD0)
PBAAK 11
P121/X1 P55/(PCLBUZ1)/(SCK00)/(INTP4)
C501 12
REGC
13
1
VSS
14
EVSS0
15
C502
VDD P51/INTP2/SO00/TxD0/TOOLTxD/TRGIOB
C503 0.1 16
EVDD0 P50/INTP1/SI00/RxD0/TOOLRxD/SDA00/TRGIOA/(TRJO0)
0.1
FSENI TWPIRQ
FTRAS
y
SCHEMATIC DIAGRAMS
MFDAK
MFK R72 MFK
MFDBK R73 1K MFDBK
PWRDS
1K
Q2
RDS
LDTC143ZE
A
J1
R2 S1 B
GND
1
COM
MFDAK
R3 100 2
Q3
MFK
TDS
3
TP90N00AE20
330 4
RIT
MFDBK
LDTC143ZE 5
GND
6
[RIT]
BOARD
TWDCLC
TWCS KI13
TWDTX
R41
[XFC]
TWBUSY
S14
6.8K
XFCK
17
16 TWDRX LS37J2
AVDD DOUT
15 TWPIRQ
X+ PENIRQ
14
Y+ DVDD
13 KI12
X- VREF
[AUTO TUNE]
S15
UC6528XBNQ4G
LS37J2
R22
2.2K
XFCK KI11
[SPEECH/LOCK]
S16
LS37J2
RESETI
IC501
R201 R202 MAINDBK_
47K
R203 82K R204 MAINDAK_
82K 47K
MAINDAK
MAINDBK
48
47
P146
46 R4 R601
45 R6 R602 22
44 G2 R603 22
43 G4 R604 22
42 BKLV G6 R605 22
41
RDS B3 R606 22
40 TDS B5 R607 22
39 PWRDS B7 R608 22
38 DISP R609 22
37 VSYNC R610 22
P54/(INTP3)
36
MAINDBK 22
P53/(INTP2)
35 MAINDAK RESETI R611
P52/(INTP1)
34
FLTXD R612 100
33 FLRXD 22
To upgrade quality, some components may be
subject to change without notice.
8V
3R3V
J71
R71
MFDAK
6 5
4 3 1K
2 1
R42 R43 R44
2.2K 15K
4.7K
[RIT] [CLEAR]
[dTX]
S17 S18 S19
LS37J2 LS37J2 LS37J2
R32 R34
R33
2.2K 4.7K 15K
[SPLIT] [A/B] [V/M]
S20 S21 S22
LS37J2 LS37J2 LS37J2
R24
15K
[M-CH DN] [M-CH UP] [TS]
S23 S24 S25
LS37J2 LS37J2 LS37J2
5V
J201
1
2
3
4
EP601 8V
EP602 MPZ1608S601A 5V
EP603 MPZ1608S601A 3R3V
J601 MPZ1608S601A
8V 8V
1 2
8V NC
3 4
5V NC
5 6
3R3V 3R3V
7 8
3R3V NC
9 10
GND LCD_R3 R613 R3
11 12
LCD_R4 LCD_R5 R614 22 R5
13 14
LCD_R6 LCD_R7 R615 22 R7
15 16
LCD_G2 LCD_G3 R616 22 G3
17 18
LCD_G4 LCD_G5 R617 22 G5
19 20
LCD_G6 LCD_G7 R618 22 G7
21 22
LCD_B3 LCD_B4 R619 22 B4
23 24
LCD_B5 LCD_B6 R620 22 B6
25 26
LCD_B7 LCD_CLK R621 22 CLK
27 28
LCD_ON LCD_HS R622 22 HSYNC
29 30
LCD_VS LCD_DE R623 22 DE
31 32
GND GND 22
33 34
FRES LTXD R624 FLRXD
35 36
LRXD PWRK R625 22 PWRK
37 38
GND GND 100
39 40
To the MAIN UNIT
A-7290-3EX-w
Printed in Japan
© 2015–2016 Icom Inc.