Icom IC-7300 Schematic Diagrams page 7

MAIN UNIT (MAIN-1)
J1
EP1
14V 14V
1
14V
2 MPZ1608S300A
14V
3
14V
4
14V
5
14V
6
14V
7
14V
8
14V
9
14V
10 EP2
HV HV
11
HV
MPZ1608S101A
12
HV MDAT
13
NC DRESH
14
GND MSTB2
15
GND MCK
16
GND
17
GND
18
GND
19
GND
20
GND
21
GND
22
GND
23
NC EP19
24
IDL EP3 MMZ1005A152ET
25
PWRS R4 MMZ1005A152ET
26
FORLP EP5 100
27
HFID2V EP6 MMZ1005A152ET HFID2VP
28
REFLP EP7 MMZ1005A152ET
29
DRIDV EP8 MMZ1005A152ET DIDV
30
HFID1V EP9 MMZ1005A152ET HFID1VP
31
KEY R10 MMZ1005A152ET
32
THML EP11 100
33
TXS R12 MMZ1005A152ET
34
START R13 100
35
3R3V EP14 100
36
DRESH R15 MMZ1005A152ET
37
PSTB R16 100
38
MDAT R17 27
39
MCK R18 27
40
27
J21
14V EP21
30
NC
29 MPZ1608S601A
8V EP22
28
8V
MPZ1608S601A
27
NC
26
3R3V EP23
25
NC
MPZ1608S601A
24
GND
23
GND
22
GND
21
GND
20
GND
19
TXS R24
18
HSENI R25 100
17
R40
MDAT R26 100
16
MSTB1 R27 27 100
15
DRESH R28 27
14
100
MCK R29 100
13
DSHK R30 27 R41
12
SKYS R31 100
11
ALCL EP32 100
10
EALC EP33 MMZ1005A152ET
9
ICCV EP34 MMZ1005A152ET ICCV
8
DRIV EP35 MMZ1005A152ET DRIVP
7
POCV EP36 MMZ1005A152ET POCV
6
IDL EP37 MMZ1005A152ET
5
REFLP EP38 MMZ1005A152ET
4
FORLP EP39 MMZ1005A152ET
3
NC MMZ1005A152ET
2
NC
1
EP46
MPZ1608S601A
Q45
DSC7004S0 R45
FANVP
470
J45
FAN+
1
FAN-
2
J51
14V EP51 14V
30
14V
29 MPZ1608S101A
14V
28
NC
27
3R3V EP52 3R3V
26
3R3V
25 MPZ1608S601A
8 8
NC
24
V+ V+
GND
23
GND GND
RFCNT(EXT)
22
4 4
GND
21
CNTRS(EXT)
20
NC NJM2904CRB1 NJM2904CRB1
19
IC135
NC IC125
18
IREFV R53 IREFV
17
TPWRL R54 100 TPWRL_
16
IMPI R55 100 IMPI
15
SWRL R56 100 SWRL_
14
PHASEI R57 100 PHASEI
13
GND 100
12
TSTB1 EP58 MMZ1608B301CT TSTB1
11
TSTB2 EP59 MMZ1608B301CT TSTB2
10
TSTB3 EP60 MMZ1608B301CT TSTB3
9
TSTB4 EP61 MMZ1608B301CT TSTB4
8
TDAT EP62 MMZ1608B301CT TDAT
7
TCLK EP63 MMZ1608B301CT TCLK
6
R64
TOE TOE
5
100
GND
4
GND
3
GND
2
GND
1
EP201
MPZ2012S601A
MAIN-3
IC141 AFONS
AFONS
16 1 SPS
VCC QB SPS
15 2 UMODS
QA QC UMODS MAIN-4
14 3 USQLS
SI QD USQLS
13 4 ASQLS
G QE ASQLS
12 5 HTRAS
RCK QF HTRAS
11 6 /DCCLK R202
SCK QG MAIN-3
10 7 0
SCLR QH
9 8 HSENI
QH' GND
HSENI
KEY
KEY
SN74AHC595PW
START
START
EALC
EALC
BANV
BANV
IDL_ MAIN-2
IDL_
PWRS
FORLP
DCCLK
REFLP
PWRS
KEY EP251
THML_
MPZ2012S601A
TXS
START
DRESH
PSTB
MDAT DCCLK R251
MCK 0
/DCCLK
TXS
HSENI
MDAT
MSTB1
DRESH
MCK
DSHK_
SKYS_
ALCL_
EALC
IDL_
REFLP
8
FORLP
V+
GND
4
REFLP
FORLP
8V
2
IC125
R127
1
DRIVP
3
DRIV
100
NJM2904CRB1
R121
HFID2V
R131 R132
HFID1V
390K DIDV
100K
IC125 6 IREFV
R134
FANVP 7
100 5 FANV 100
R122
NJM2904CRB1 R133
POCV
ICCV
100K
FANV
IC135
2
BANV
R136
HFID2VP 1
100 3 HFID2V 100
NJM2904CRB1
R137
R123
100K
IC135 REFV
6 DRIV
R138
HFID1VP 7 CP121
100 5 HFID1V CP122
NJM2904CRB1
R139 CP06S
100
100K
MP201
3182
17
L201
EP202
5 16
SYNC PGND MPZ2012S601A
6 15
LBO SW
7 14
10U
LBI SW
8 13
VINA PG
IC201
TPS62110RSAR
17
5 16
SYNC PGND
6 15
LBO SW L252
7 14 5V
LBI SW
8 13
VINA PG 10U
R254
IC251
39K
TPS62110RSAR
R255
100K
R262
0
IC276
NJM7808DL1A
R152 R158 R276
I
47K 100K
10
2 IC151
D152 R160
1 REFL_
R153
3 100
L1SS400
NJM2904CRB1
R154 4.7K
15K DCCLK
CP151 DCCLK
/DCCLK
R155 SHORT1005 /DCCLK
MAIN-6
1K
6 IC151
D151 R159
7 FORL_
R156 REFV
5 100
L1SS400
MAIN-5
10K
R157 NJM2904CRB1
18K
IC121
1 20
VrefL GND
2 19
Ao3 Ao2
3 18 C74
Ao4 Ao1
4 17 0.001
MDAT
Ao5 DI
5 16
MCK C73
Ao6 CLK
6 15
DSTB C72 22P
Ao7 LD
7 14
C71 22P
Ao8 Do
8 13
Ao9 Ao12 0.001
9 12
Ao10 Ao11
10 11
VrefU Vcc
R2A20169SA
To the DISPLAY BOARD
u
SCHEMATIC DIAGRAMS
R242
D241
IC241
IC211 5 1
VOUT VIN
1 5 2
VIN VOUT VSS R241
2 4 3
VSS NC CE
3 4
CE NC
10K
XC6222A321MR
XC6222A331MR
IC221
ADP2370ACPZ
1 8
R223
VIN PGND L222 EP221
2 7
FSEL SW
3 6
2.7U
10K EN PG MPZ2012S601A
R221 4 5
SYNC FB
0
R226
IC216
100K
1 5
VIN VOUT
2
VSS
3 4 IC231
CE NC
3R3V 1 5
IN OUT
XC6222A331MR 2
GND
3 4
EN NC
TLV70025DCKR
IC271
NJM7808DL1A
R271
I O
6.8
G
17
L262
5 16
SYNC PGND L263
6 15
LBO SW
7 14
10U 10U
LBI SW
8 13
VINA PG
R264
IC261
0
TPS62110RSAR
R265
560K
PWRS TPWRL_
PWRS TPWRL_
F8V TXS IMPI
O TXS IMPI
DSHK_ SWRL_
G DSHK_ SWRL_
SKYS_ PHASEI
SKYS_ PHASEI
IDL_ TSTB1
IDL_ TSTB1
ALCL_ TSTB2
ALCL_ TSTB2
THML_ TSTB3
THML_ TSTB3
REFL_ TSTB4
REFL_ TSTB4
FORL_ TDAT
FORL_ TDAT
TCLK
TCLK
DRESH TOE
DRESH TOE
MDAT
MDAT
MCK PWRK
MCK
DSTB LRXD
DSTB LRXD
PSTB LTXD
PSTB LTXD
MSTB1 FRES
MSTB1 FRES
MSTB2
MSTB2
MPZ1608S601A
R110
47K
R111
47K
C96
J2
C97 0.1
12
C98 0.1
11
0.1
10
9
VDD(3R3V)
C106
8
7
0.1
6
5
4
3
2
1
To upgrade quality, some components may be
subject to change without notice.
HV MAIN-2
14V
8V
MAIN-3
5V
H4V
H3R3V MAIN-2
3R3V
MAIN-6
2R5V
1R2V MAIN-4,6
H1R18V MAIN-2
10K
R243
LRB551V
470
2.5V
8V
1.2V
LCD_DE
SD_WP
LCD_DE
SD_WP
LCD_VS
SD_CD
LCD_VS
SD_CD
LCD_HS
SD_D1
LCD_HS
SD_D1
LCD_ON
SD_D0
LCD_ON
SD_D0
LCD_CLK
SD_CLK
LCD_CLK
SD_CLK
LCD_B7
SD_CMD
LCD_B7
SD_CMD
LCD_B6
SD_D3
LCD_B6 SD_D3
LCD_B5 SD_D2
LCD_B5 SD_D2
LCD_B4 SDPWS
LCD_B4 SDPWS
LCD_B3
LCD_B3
LCD_G7
LCD_G7
LCD_G6
LCD_G6
LCD_G5
LCD_G5
LCD_G4
LCD_G4
LCD_G3
LCD_G3
LCD_G2
LCD_G2
LCD_R7
LCD_R7
LCD_R6
LCD_R6
LCD_R5
LCD_R5
LCD_R4
LCD_R4
LCD_R3 MAIN-2
LCD_R3
SDPWS
Q112
LDTC143ZE
220 R1
27 R2 J1
SDDAT2 27 R3
#9:DAT2
SDDAT3 27 R4
#1:CD/DAT3
SDCMD
#2:CMD
27 R5
#3-1:VSS
27 R6
#3-2:VSS
SDCLK EP7
#4:VDD
MPZ1608S601A
#5:CLK
SDDAT0 27 R8
CD
SDDAT1 220 R9
#6:VSS
SDCD
#7:DAT0
SDWP
#8:DAT1
WP1
WP2
SD BOARD
A-7290-3EX-w
Printed in Japan
© 2015–2016 Icom Inc.