Main Unit - Icom IC-7300 Schematic Diagrams

BLOCK DIAGRAM (BLOCK DIAGRAM-2)
TMS320C6745
SPCS/SPCK/SPDO/SPDI
FLASH
MEMORY
IC961
XC6209F502MR
FPX_AGC/FPX_DET/FPR_MOD
8V +5V AD5V
/FPCAL/BCLK/FRM/MCLK
REG
IC1001
PCM1802
Q1001 LDTC114 IC1002
IC1003 TC7W53FK TS462CPT
AMOD
LPF
UMOD
SW11
UMODS
IC1002 TS462CPT
MIC
MICI
AMP
IC991
AFO
PCM1754
Q746 TPCF8107 IC721 IC992
Q747 RUE002N02 MP7741 TS462CPT
J101
AF AF
LPF
SW
AMP AMP
AFONS
IC992
SPS
TS462CPT
SP1
AAF
IF
AMP
IC971
IC972 NJM2904CRB1 PCM1754
Q972 L2SC4081
DC
AGC
AMP
IC972 NJM2904CRB1
Q971 L2SC4081
DC
AMP
IC791
NJM2904CRB1
DC
AMP
Q803 DSC7004S
Q802 L2SC4081
Q801 LDTA114
SEND
J1302 SW
ACC8V
1.8V
1
2.GND IC791
2
NJM2904CRB1
3.HSEND
3
4.START
4 START
DC
5.BAND
5
AMP
6.ALC
6 EALC
7.NC
[ACC] 7
8.14V
8
9.KEY
9 KEY
10.FSKK
10
11.MOD 11 AMOD Q821 KTC4075
12.AF 12 Q1106 L2SC4081
13
13.SQLS
FSK
SW
Q831 LDTC143
SQL
SW
Q45
DSC7004S
FAN
FAN
BUFF FANV
CTRL
IC125
NJM2904CRB1
X901
CR-1021
(12.288 MHz)
FPX_AGC/FPX_DET/FPR_MOD/MCLK
/FPCAL/DFR_MOD/DFX_DET/DFX_AGC/CFG
/CAL/STAT/FPRES/DONE/SPDO/SPCK/RSSI
DSPCK/DSPR/FRM/BCLK
IF-DSP
IC901
TCON/ESTA/EKEY
HSK0/HSK1/DRESD/FRWT
DR_AF/DR_RSV/DX_REC/DX_FMT X301
CR-1017
(48 MHz)
IC351 GT24C128B
ECK/EDT
EEPROM
IC902
EN25QH32A-104HIP IC371 NJU7704F3
H3R3V RESET
RESET
IC361 NJU7704F3
HV PDV
VDET
MAIN
CPU
IC301
TDAT/TCLK/TOE
R7S721000VCFP
TSTB1-TSTB4
A/D
TPWRL/IMPI/SWRL/PHASEI
SDWP/SDCD/SDDAT1/SDDAT0
SDCLK/SDCMD/SDDAT3/SDDAT2
A/D
VDD Q111 RZR040P01
Q112 LDTC143
SDPWS
SW
IC391
EN25Q64 MSTB2
SFLSS/SFLCK/SFLD0 /DSTB
D/A FLASH SLFD1/SFLD2/SFLD3
MEMORY
Q712 L2SA1576 IC701
Q711 L2SC4081 TC74VHC04FT
CTXD
CI-V
BUFF
D/A I/F CRXD/CBSY
UDTXD/UDRXD/UDBSY
Q642 LDTC143
H3R3V USSPD
SW
D/A
Q644 LDTA114
H3R3V USKI
SW
D/A
USSENI
Q645 LDTA114 IC611
XC6209F332MR
5V H3R3V
SW
H4V +3V USB3R3V
REG
HSENI UPWS
UMOD
IC681 IC661
HTRAS
TC7S66FU PCM2901E
USB
AAF
CODEC
SW12
BANV
USQLS
14V
X661
CR-1020
(12.000 MHz)
RTKI
Q692 L2SA1576 IC701 IC691
Q691 L2SC4081 TC74VHC04FT TC7W66FU
CI-V USB
BUFF SW
I/F BRIDGE
ASQLS
IC641
CP2102GMR
UCLKS
CIV
IC701 TC74VHC04
Q851 LDTA114
Q852 LDTC143
FPGA
TUNER START/KEY TO PA
I/F
IC1351
LCD_DE/LCD_VS/LCD_HS/LCD_ON/LCD_CLK
EP4CE55F23I7N
LCD_R3-R7/LCD_G2-G7/LCD_B3-B7 TO FRONT
FPDX/FPSR/FPSX
SCPCK/SCPR/SCPX/SCPSS
RTC_IRQ IC381 IC1401
/RTC_SCL RX-8803LC 23LC1024T
/RTC_SDA
RTC S-RAM
FFCLK/FFCS
FFDO/FFDI
LTXD
LRXD
PWRK
PWRS
IC1212
LVDS
TXS
SN65LVDS1DBV
DRIVE
RXS
RTKI
HSENI
UCLKS
VBUS
UPWS
VDL
IDL
41.344 MHz
DSHK/SKYS/ALCL
To the RF UNIT
MDAT/MCK
/MSTB1/PSTB
IC141 SN74AHC595PW
IC121 R2A20169SA
I/O
EXP
DRESH
NJM2904CRB1
AFONS HFID1V
SPS HFID2V
UMODS DIDV HFID1V
USQLS IREFV
ASQLS POCV
HTRAS ICCV
FANV
NJM2904CRB1
BANV
REFV
DRIV HFID2V
NJM2904CRB1
FORLP
J751
NJM2904CRB1
[USB]
IC621
REFLP
TUSB2046BIVFR
USB
HUB
NJM2904CRB1
X621
CR-1019 DRIV
IC662
(6.000 MHz)
SN74AHC1G32
BIAS
CTRL TR SW
Q661 LDTC143
H3R3V
SW VBUS
Q643 LDTC143
TR SW
Q641 LDTC143
J611
[REMOTE]
r
SCHEMATIC DIAGRAMS
DCCLK
/DCCLK
IC1331
ISL5857IAZ
D/A LPF
IC1221
SN74LVC1G04DCK IC1321
XC6209F332MR
DACLK XTAL 124.033 MHz
AMP
BPF +3
REG
FTXS
FRXS
50RTS
70RTS
D1251
BAP70Q
PIN
A/D
ATT
IC1325
XC6209F332MR
AGCV
5V +3 RFD3R3V
REG
IC1318
BA033FP
+3 RFA3R3V
REG
IC1211
Q1201 2SC3356
SN74AHC1GU04DCK
Q1202 L2SA1576
AMP BUFF
X1201
CR-932 REFV
(41.344 MHz)
IC201
TPS62110
HV H4V
DC-DC
IC211
XC6222A331
IC135 /DCCLK
+3
REG
BUFF HFID1VP
IC135
BUFF HFID2VP
DCCLK
IC151
IC216
XC6222A331
BUFF FORL_
+3
REG
IC151 IC251
TPS62110
PWRS
14V 5V
BUFF REFL_ DC-DC
IC261
TPS62110
IC125
1R2V
DC-DC
BUFF DRIVP
IC271
NJM7808DL1A
+8V 8V
REG
IC276
NJM7808DL1A
+8V F8V
REG
To upgrade quality, some components may be
subject to change without notice.
Q1234 LDTC143
Q1235 LDTA114
8V
8V
SW
FTXS
RF
Q1231 LDTC143
Q1232 LDTA114
8V
SW
FRXS
IC1241
XC6209F502MR
+5V 8V
REG
H3R3V
5V BACK-UP
CTRL IC241
IC221 XC6222A321
ADP2370ACPZ
H1R18V
DC-DC
3R3V
IC231
TLV70025DCKR
+2.5V 2R5V
REG

MAIN UNIT

A-7290-3EX-w
Printed in Japan
© 2015–2016 Icom Inc.