Icom IC-7300 Service Manual page 67

• MAIN UNIT (MAIN-5)
X1201
C1205
MAIN-1
R1201
0.001
4 3
REFV
VCC OUT
1 2
33K VCONT GND
CR-932
EP1202
CASE-BM7H
IC1241
EP1251
1 5
VIN VOUT
2
VSS
MMZ1005Y102CT
3 4
CE NC
XC6209F502MR
R1252
EP1236
LDTC143ZE
MAIN-6 1.8K
LDTA114EE
MMZ1005Y102CT
Q1231
L1232
Q1232
FRXS
100U
D1231 C1254
1SV308 0.1
MAIN-4 R1258
EP1252
AGCV
150 MMZ1005Y102CT
C1231
0.1
D1232
1SV308
Q1234
MAIN-6
LDTC143ZE
EP1235 L1233
FTXS
Q1235
MMZ1005Y102CT
100U
LDTA114EE
TX signal
RX signal
R1211
47
C1251
0.1
R1253
1.8K
C1255
0.1
L1282
LQW18ANR12G00D
C1235 L1281
0.1 LQW18ANR12G00D
MMZ1005Y102CT
R1212
10K
IC1211
1 5
C1211
2 EP1212
R1213
MMZ1005Y102CT
0.001 3 4
47
SN74AHC1GU04DCK
C1212
C1213
0.01
CP1306
SHORT
RX-ADC
IC1321
1 5
VIN VOUT
2
VSS
3 4
CE NC
XC6209F332MR
IC1331
SLEEP DCOM
15
REFLO DCOM
C1332
16
REFIO D0(LSB)
0.1
R1334 R1335 17
L1331 FSADJ D1
120 1.8K 18
NC D2
19
ACOM D3
20
IOUTB D4
21
LR-592 IOUTA D5
0.1
C1333 22
COMP D6
C1334 0.1 23
AVDD D7
C1335 10 24
NC D8
CASE-BM7H 25
DCOM D9
0.1 26
EP1333 C1336
DVDD D10
27
C1337 10
CLK D11(MSB)
28
ISL5857IAZ
CMOS
IC1318
BA033FP
O I
G
5
VOUT
4
NC
XC6209F332MR
CP1304
SHORT
CP1333
14
SHORT
13
CP1334
12
11
SHORT
MMZ1005Y102CT
10
CP1335
9
C1220
8
2.2
SHORT
7
C1221
6
0.1
5
IC1221
R1224
4
5 1
3
2
0
2
4 3
1
SN74LVC1G04DCK
R1222
10K
10-6
8V
5V
3R3V
MAIN-1
3R3VA
MAIN-4
CLK41M_P
CLK41M_N
R1318
3.3
R1319
3.3
IC1325
1
VIN
2
VSS
3
CE
CP1305
SHORT
MAIN-6
MAIN-6
FI1221
FL-391
R1221
5 1
O I
47
DACLK