Icom IC-7300 Schematic Diagrams page 10

MAIN UNIT (MAIN-4)
SPDI
C955
J901
SPDO
1 2 100P
SPCK
3 4
SPCS
5 6
7 8
9 10
C902 47 F93
C903 47 F93
R901
C905
1M
0.1 133
134
X901 135
CR-1021
136
137
C915
138
0.1
139
140
C916 141
0.01 142
143
144
R902
145
DRESD
146
C906
1K
147
0.1
148
149
C907 150
0.1 151
152
C908
153
154
0.1
155
C909 156
0.1 157
158
C910
159
0.1
160
C911
161
DSPCK R905 0.1
DCSX R906 22 162
C912
22 163
0.1 164
DCSR R907 165
22 166
167
0.1
C913 168
169
170
C914
171
172
0.1
173
R908 174
DSPR
22 175
DSPX R909
22 176
177
R912 4.7K
R913 18K
R914 4.7K
R915 4.7K
R916 18K
R917 4.7K
C936
47 F93
C937
47 F93
IC901
TMS320C6745DPTPA3
R927
22 IC902
C938
1 8
CS VCC
2 7
0.1
DO(DQ1) HOLD(DQ3)
3 6
R929 SPCK
WP(DQ2) CLK
4 5 R930 22 SPDI
VSS DI(DQ0)
R926
22
EN25QH32A
47K
!0
SCHEMATIC DIAGRAMS
R971
MCLK
FRM
FPX_AGC
BCLK
IC971
22 16
SCK BCK
15
FMT DATA
14
MUTE LRCK
CP901 13
DEMP DGND
12
SHORT TEST NC
11
C971 ZEROA VCC
CP902
10
VCOM VOUTL
10 9
SHORT AGND VOUTR
PCM1754DBQ
88 C940
87
0.1
86
85
84
83
82 C941 R991
81 0.1 MCLK
80 FRM
79 FPX_DET
78 C942 BCLK
77 0.1
IC991
76 C943 16
22
SCK BCK
75 15
0.1
FMT DATA
74 14
MUTE LRCK
73 13
DEMP DGND
72 C944 12
TEST NC
71 0.1 11
C991 ZEROA VCC
70 C945 10
VCOM VOUTL
69 0.1 10 9
AGND VOUTR
68 C946
67 0.1 PCM1754DBQ
66 C947
65 0.1
64
63
62 C948
AD5V
61
0.1
60 C949
59 0.1
58
57 C950
56 0.1
55
54 C951
53 0.1
52
51 C952
50 0.1
49
48
C953
47
0.1
46
45
IC1001
20 1
MODE1 VINL
19 2
MODE0 VINR
18 3
FMT1 VREF1
17 4
FMT0 VREF2
16 5
OSR VCC
R1001 15 6
SCKI AGND
/FPCAL 14 7
VDD PDWN
MCLK 13 8
DGND BYPAS
FPR_MOD 12 9
DOUT FSYNC
BCLK 11 10
BCK LRCK
22
PCM1802DBR
R1002
FRM
22
FPX_AGC
FPX_AGC
FPX_DET
FPX_DET
FPR_MOD
FPR_MOD
MCLK
MCLK
BCLK
BCLK
FRM
FRM
DR_RSV
R932 1K BCLK__
BCLK__
DX_FMT
R933 18K FRM__
FRM__
DR_AF
/FPCAL
/FPCAL
DX_REC
R935 1K DFR_MOD
DFR_MOD
HSK0
DFX_DET
DFX_DET
HSK1
DFX_AGC
DFX_AGC
RTD
/CAL
/CAL
FRWT
CFG
CFG
DRESD
STAT
STAT
DSPCK
FPRES
FPRES
DCSX
DONE
DONE
DCSR
SPDO
SPDO
DSPR
SPCK
SPCK
DSPX
RSSI
RSSI
MAIN-2
MAIN-6
To upgrade quality, some components may be
subject to change without notice.
IC961
AD5V 5 1
VOUT VIN
2
VSS
4 3
NC CE
XC6209F502MR
IC972
NJM2904CRB1
100
14V
R982
C976
0.1
R972 R978
100K 39K
IC972
6
R976
1 7 Q971
R973
2 5 L2SC4081
100
3
CP06S
R980
100K NJM2904CRB1
4
CP971
5
10K
6
7
R974 R979
8
100K 100K
IC972
2
R977
1 Q972
R975
3 L2SC4081
100
100K NJM2904CRB1 R981
10K
C994
10
R992
5V
100
IC992
TS462CPT
4.7K
R993 R995
6 IC992
R999
C1001
7
820
5
100 10
TS462CPT
1
2
3
4
5
6
12K
7
R994 R996
8 2 IC992
R1000 C1002
1
3.9K
3
100 10
TS462CPT
EP1003
MPZ1608S601A
C1013 220P
R1011
15K
R1013
8 2
C1011 R1008
V+ 1 10K
GND 3
2.2 12K
4 IC1002
TS462CPT
IC1002
TS462CPT
R1010
10K
C1014
R1005
18K 0.1
R1006 IC1003
18K 1 8
COM VCC
2 7 R1019
INH CH0
C1015 3 6 R1020 18K
VEE CH1
10 4 5
0
GND A
TC7W53FK
Q1001
LDTC143ZE
C1012 120P
R1012
68K
IC1002 R1015 C1016
6
C1010 R1009
7
4.7K
2.2 CP1001
5
1.2K
2.2
TS462CPT SHORT1005
DR_RSV
DX_FMT
DR_AF
DX_REC
HSK0
HSK1
RTD
FRWT
DRESD
DSPCK
DCSX
DCSR
DSPR
DSPX
A-7290-3EX-w
Printed in Japan
© 2015–2016 Icom Inc.
14V
8V
3R3V
1R2V
UMODS
MAIN-1
MAIN-6
AGCV
AAF
DETAF
MAIN-3
MAIN-5
3R3VA
UMOD
AMOD
R1022
MAIN-3
220
MICI
MICE