Icom IC-7300 Schematic Diagrams page 8

MAIN UNIT (MAIN-2)
H3R3V
ESTA
ESTA
EKEY
EKEY
TCON
C351
HSENI
HSENI
RTKI 0.1
RTKI IC351
RXS
1 8
TXS A0 VCC
TXS
2 7
A1 WP
3 6
A2 SCL
MAIN-3 4 5
VSS SDA
GT24C128B
CRXD/CBSY
CRXD/CBSY
CTXD
CTXD
UCLKS
UCLKS
UDRXD/UDBSY
UDRXD/UDBSY
H3R3V HV
UDTXD
UDTXD
USKI
USKI
USSENI
USSENI
UPWS
UPWS
USSPD
USSPD
VBUS
VBUS
IC361
1 5
CD VDD
2
VSS
3 4
MR VOUT
NJU7704F3
3R3V
H3R3V H3R3V
3R3V
LRB706F
IC371
R431 D431
1K 1 5
SKYS CD VDD
SKYS_ 2
DSHK VSS
DSHK_ 4
3
MR VOUT
R432
S371
3R3V
1K
NJU7704F3
LRB706F
LS37J2
H3R3V H3R3V
D432
C383
1
IC381
1 12
N.C. EVIN
2 11
3R3V H3R3V
FOE INT
3 10
VDD GND
4 9
FOUT T2(Vpp)
5 8
SCL SDA
6 7
T1(CE) N.C.
PWRK RX-8803LC
PWRK
LRXD
LRXD
LTXD
LTXD
FRES
FRES
PWRS
PWRS
SDPWS
SDPWS
47K
MAIN-1
R401
LCD_R7
LCD_R7
LCD_R6
LCD_R6
LCD_R5
LCD_R5
LCD_R4
LCD_R4
LCD_R3
LCD_R3
LCD_G7
LCD_G7
LCD_G6
LCD_G6
LCD_G5
LCD_G5
LCD_G4
LCD_G4
IC391
LCD_G3
LCD_G3
SFLSS 1 8
LCD_G2 CS VCC
LCD_G2
SFLD1 2 7
LCD_B7 DO(DQ1) NC(DQ3)
LCD_B7
SFLD2 3 6
LCD_B6 WP(DQ2) CLK
LCD_B6 4 5
LCD_B5 VSS DI(DQ0)
LCD_B5
LCD_B4
LCD_B4 EN25Q64
LCD_B3
LCD_B3
LCD_ON
LCD_ON
LCD_CLK
LCD_CLK
LCD_VS
LCD_VS
LCD_HS 3R3V
LCD_HS
LCD_DE
LCD_DE
IMPI
PHASEI
TCLK
TDAT
TOE
TSTB1
TSTB2
TSTB3
H3R3V H1R18V
MPZ1608S601A
ECK
EDT
PDV
193
DSHK
P2_12
SKYS 194
P2_13
RTKI 195
P2_14
HSENI 196
P2_15
FRES 197
P1_0
RTC_IRQ 198
P1_1
RTC_SCL 199
P1_2
RTC_SDA 200
P1_3
ECK 201
P1_4
EDT 202
P1_5
PDV 203
P1_6
204
PWRK
P1_7
R302 205
RESET
P0_2
206
C302 10K
PVcc
0.1 207
Vss
208
VIN1A
209
VIN2A
C303 210
VDAVcc
0.1 211
VDAVss
212
REXT
213
VRP
214
VRM
215
VIN1B
216
VIN2B
217
C304
PVcc
218
0.1
Vss
219
C305
Vcc
220
0.1
Vss
221
LVDSAPVss
222
LVDSREFRIN
RTC_IRQ C306 223
LVDSAPVcc
0.1 224
P5_0
225
LVDSAPVss
RTC_SDA 226
P5_1
227
P5_2
C307 228
LVDSAPVcc
RTC_SCL 229
0.1
P5_3
230
P5_4
231
LVDSAPVss
232
P5_5
233
P5_6
C308
234
LVDSAPVcc
0.1 235
EP303 P5_7
C309 236
LVDSPLLVcc
0.1
237
MMZ1005B601C
Vss
238
Vss
C310 239
PVcc
IMR0 0.1 240
P5_8
IMR1 241
P5_9
IMR2 242
P5_10
SFLCK 243
P9_2
244
SFLSS
P9_3
245
SFLD0
P9_4
246
SFLD1
P9_5
SFLD2 247
P9_6
SFLD3 248
P9_7
R303 249
P0_3
10K 250
Vss
H3R3V C311 251
PVcc
LRXD 0.1 252
P6_0
LTXD 253
P6_1
EKEY 254
P6_2
ESTA 255
P6_3
USSENI 256
P6_4
SFLD3
SFLCK
SFLD0
R441
10K
IMPI
PHASEI
TCLK
TDAT
TOE
TSTB1
TSTB2
TSTB3
TSTB4
i
SCHEMATIC DIAGRAMS
P1_15
P1_14
P1_13
P1_12
P1_11
P1_10
P1_9
AVref
AVss
AVcc
P1_8
Vss
P0_1
PVcc
PLLVcc
XTAL
EXTAL
Vss
P0_0
USB_X2
USB_X1
USBUVss
USBUVcc
USBAVss
USBAVcc
USBAPVcc
USBAPVss
REFRIN
USBDVss
USBDVcc
IC301
VBUS0
R7S721000VCFP DP0
DM0
USBDPVss
USBDPVcc
USBDVss
USBDVcc
VBUS1
DP1
DM1
USBDPVss
USBDPVcc
Vcc
P0_5
P0_4
Vss
Vss
RTC_X2
RTC_X1
PVcc
NMI
RES
P3_0
Vss
P3_1
PVcc
P3_2
P3_3
P3_4
P3_5
P3_6
P3_7
P9_1
P9_0
C461 22P
C462
100P
C463
100P
C464
100P
To upgrade quality, some components may be
subject to change without notice.
3R3V H1R18V H3R3V HV
DRESH
PSTB
DSTB
MSTB2
MSTB1
MCK
MDAT
SD_D0
SD_D1
SD_D2
SD_D3
SD_CMD
SD_CLK
SD_CD
SD_WP
LRB706F
LRB706F
128
SWRL
127 TPWRL LRB706F
126 ALCL
125 REFL
124 FORL D453
123 THML
122 IDL
C334
121 LRB706F
0.1
120
119 C335
118 0.1 VDL
117
116
R312
115
10K LRB706F
C336
114
EP304 0.1
C337
113 0.1
MMZ1005B601C
112
111
110 R313 D458
R453
109 10K
108 VDL
107 FORL
106 C338 REFL
105 0.1 ALCL
104 C339
103 0.1 1K
X301
102
C340 CR-1017
101 R314 0.1
100 5.6K
99
0.1
98 C341
97 R451
96 IDL
95 THML
C342
94 SWRL
93 0.1 TPWRL
92 C343
91 0.1 1K
90
89
88
C344
87 0.1
86
0.1
85 C345 USSPD
84 TCON
83
82
81
80
79 C346 R491
78 R315 10K
0.1
77 10K
RESET
76
LCD_CLK RESET
75
TDO
74 LCD_VS
73 TCK
72 LCD_HS TMS
71 LCD_DE TDI
70 BCLK_ TRST
69 FRM_
68 DX_FMT
67 DR_RSV
66 RXS
65 TXS
3R3V 3R3V 3R3V
DX_REC
DX_FMT
DR_RSV
DR_AF
BCLK_
FRM_
DRESD
DSPCK
DCSR
DCSX
FPDX
DSPX
DSPR
RTD
FRWT
HSK1
HSK0
FPSR
FPSX
SCPCK
SCPSS
SCPX
SCPR
A-7290-3EX-w
Printed in Japan
© 2015–2016 Icom Inc.
HV
H3R3V
H1R18V
DRESH
PSTB
DSTB
MSTB2
MSTB1
MCK
MDAT
SD_D0
SD_D1
SD_D2
SD_D3
SD_CMD
SD_CLK
SD_CD
SD_WP
H3R3V
D452
MAIN-1
D454
D456
HV
FORL_
REFL_
ALCL_
IDL_
THML_
SWRL_
TPWRL_
R452
47K
H3R3V
DX_REC
DX_FMT
DR_RSV
DR_AF
R511
BCLK__
R512 22
FRM__
22
DRESD
DSPCK
DCSR
DCSX
FPDX
DSPX
DSPR
RTD
FRWT
HSK1
HSK0
FPSR
FPSX
SCPCK
SCPSS
SCPX
SCPR
MAIN-4