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Transceiver
IC-7300
Service manual
Section 9 Block Diagram - Icom IC-7300 Service Manual
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Also See for IC-7300
:
Full manual
(173 pages)
,
Basic manual
(72 pages)
,
Service manual
(44 pages)
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SECTION
9.
BLOCK DIAGRAM
[DC 13.8V]
1
REVERSE
D202
CONNECT
DF30SC4M
PROTECT
IC211
J20012
INA199A2
1
EKEY
2
ID
ESTA
3
[TUNER]
14V
DET
4
P9V
Q101
3dB
2SK2854
RF
ATT
AMP
BIAS
T9V
T9V
fc=76 MHz
MUTE
Q811
KTC2875
D811/D812
BAR64
x2
Q1001 LDTC143
D1001 1SV308
MUTE
T5V
D1021
IC1031
D1041
BAP70Q
BGA2866
BAP70Q
PIN
YGR
PIN
ATT
AMP
ATT
ALC
DRIV
IC1301-IC1303
SN74AHC595PWx3
I/O
MDAT/MCK
EXP
DSHK
/MSTB1
[ELEC-KEY]
SKYS
J851
Q101
LDTC143EE
SW
SW
CTRL
[SEND]
EALC
[ALC]
HSENI
TX signal
RX signal
HV
2
Q221
TJ50S06M3L
14V
SW12
IC221
BA09FP
+9
P9V
REG
PWRS
CTRL
Q222
Q341/Q342
RUM002N02
LDTC143/LDTA114
IDL
P9V
CTRL
T9V
TXS
Q111
Q121
RD01MUS2
RD15HVF1
Q131/Q132
RD70HVF1 x2
PRE
PWR
DRIVE
DRIVE
AMP
AMP
HEAT
SENS
BIAS
BIAS
BIAS
THML
T9V
DRIDV
HFID1V
HFID2V
Q771-Q777
LDTC143 x7
IC751
Q781-Q787
L1S
DRESH
SN74AHC595PW
LDTA123 x7
L2S
PSTB
L1S-L7S
L1-L7
L3S
MDAT
I/O
L4S
CTRL
MCK
EXP
L5S
L6S
L7S
RPPS
LPF
HAT13
18dB
ATT
HATOF13
1.60-74.80 MHz
Q1051
L2SC4081
HPF
D1051/D1052
BAR64
x2
ATT
Q1061/Q1062
IC1061
LDTA114/LDTC143
XC6209F502MR
+5V
8V
CTRL
REG
TXS
B0S
B1S
Q1111-Q1261
B2S
LDTC143 x15
B3S
B0S-B12TXS
B0-B12TX
B4S
B5S
CTRL
B6S
B7S
B8S
Q1098/Q1110
B9S
LDTC143/LDTA114
B10S
B11S
B12S
HATTS
CTRL
HAT13
B11TXS
B12TXS
DRESH
Q1097/Q1099
HATTS
LDTC143/LDTA114
HATOFS
HPOFS
HPR1S
HATOFS
CTRL
HATOF13
HPR2S
Q1096/Q1095
LDTC143/LDTA114
HPOFS
CTRL
HPON13
Q1092 LDTC143
Q1094 LDTA114
HPR1S
CTRL
CTRL
HPON13
Q1091 LDTC143
Q1093 LDTA114
D1091 L1SS400
HPR2S
CTRL
CTRL
HPR8
9-1
0.03-2.0 MHz
SW11
SW11
LPF
L1
2.0-4.0 MHz
SW11
SW11
LPF
L2
4.0-7.3 MHz
SW11
SW11
LPF
D961/D962
LRB751Sx2
SW11
L3
PWR/SWR
7.3-14.35 MHz
DET
SW11
SW11
LPF
Q778
LDTC143
L4
14.35-21.45 MHz
T/R
IC981
SW11
SW11
CTRL
NJM2904CRB1
LPF
FORLP
BUFF
L5
IC981
21.45-33.0 MHz
NJM2904CRB1
SW11
SW11
REFLP
LPF
BUFF
T9V
L6
RPPS
33.0-76 MHz
SW11
SW11
LPF
PA UNIT
L7
0.03-1.59 MHz
LPF
B0
1.60-30.00 MHz
1.60-1.99 MHz
15.00-21.99 MHz
LPF
BPF
BPF
B1
2.00-2.99 MHz
22.00-29.99 MHz
BPF
BPF
B2
30.00-49.99 MHz
3.00-4.49 MHz
54.01-69.99 MHz
BPF
BPF
B3
4.50-6.49 MHz
50.00-54.00 MHz
BPF
BPF
B4
6.50-7.99 MHz
70.00-74.80 MHz
BPF
BPF
B5
8.00-9.99 MHz
50.00-54.00 MHz(TX)
BPF
BPF
B6
10.00-14.99 MHz
70.00-72.00 MHz(TX)
BPF
BPF
B7
SW11
D1505
SW11
D1311/D1312
MMBD452
MMBD352 X2
130dB
SWR
ATT
DET
ATT
NATT2S
NATT2R
NATT1S
NATT1R
IC1701
Q1612
Q1611
IC1901
BA2903
2SC4116
2SC4116
NJM2904CRB1
PHASE
BUFF
BUFF
BUFF
DET
D1201
IC1901
MMBD452
NJM2904CRB1
POWER
BUFF
DET
IC1701
BA2903
D1271
MMBD452
DPDDET
IMP
DET
IMPI
IREFV
HPR8
Q1211
2SC3356
Q1212/Q1213 LDTC143 x2
PRE
AMP
HPR1S
HPR2S
HPON13
B8
HPOF13
B9
IC1501
IC1501
NJM13403
NJM13403
Q1571
L2SC4081
FORLP
ALC
ALC
AMP
AMP
POCV
B10
IC1501
IC1502
NJM13403
NJM2904CRB1
APC
METER
AMP
REFLP
AMP
B11
Q1521
L2SA1576
ALC
EALC
AMP
B12
IC1501
NJM13403
IDL
APC
AMP
ICCV
B11TX
Q3275/Q3276
Q1561
LDTA114
2SK3018/KTC4075
Q1562
KTC2875
AMS
ALC-CTRL
B12TX
Q1511
LDTA114
Q1512
LDTC143
Q1513
RUM002N02
Q3275/Q3276
2SK3018/KTC4075
NASBS
ALC-CTRL
HF/50 MHz/70 MHz
ANTENNA
TUNE
NET
I/O
IC2811-IC2841
EXP
BU2092FVx4
SWRL
PHASEI
TDAT/TCLK/TOE
TPWRL
TSTB1-TSTB4
To the MAIN UNIT
TUNER UNIT
RF
ALC
ALCL
RF UNIT
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