Icom i703, Service Manual

Page: 74 / 77

J6701
START
KEY
TPWR
3V
POWS
GND
GND
NC
14V
14V
14V
NC
GND
NC
T8V
8V
NC
HV
R6704 1k
R6703 1k
R6702 1k
R6701 1k
C7373 0.0047
ESPO
ISPO
ESPE
J7371
J7372
J7121
C7121 0.1
ESPE
ESPO
BUS LINE1
14V
5V
8V
T8L
HV
BUS LINE3
3V
1
2
3
4
5
6
7 8
9
10
11
12
13
14 PDT
IC9801
TC74HCT7007AF
BUS LINE6
PDT5
PCK
PCK5
PMST
PST5
3
1
2 5
4
6
Q9801
XP4311
UNLK
ULS
ULP
D9801 DAP222
PDST
DST5
P2ST
SST5
PBST
BST5
J6751
GND
IDH
IDL
TOE
TDTS
PWRS
MDT3
MCK3
DRES
GND
FORL
REFL
TPZL
TPHK
TPZS
TSWL
TGK
GND
R6751 1k
R6752 1k
R6753 1k
R6754 1k
R6755 1k
R6758 1k
R6759 1k
R6760 1k
R6761 1k
R6762 1k
R6763 1k
R6764 1k
R6765 1k
EP6756
EP6757
C6758 0.0047 C6755 0.0047 C6754 0.0047 C6753 0.0047 C6752 0.0047 C6751 0.0047
C6765 0.0047 C6764 0.0047 C6763 0.0047 C6762 0.0047 C6761 0.0047 R6756 47k
START
KEY
TPWR
POWS
IDH
IDL
TOE
TDTS
PWRS
MDT3
MCK3
DRES
FORL
REFL
TPOL
TPHK
TZK
TSWL
TGK
J6801
EP6801 8V
MUDL
AFO
SEND
MICE
MIC
SQLS
EP6802
EP6803
L6804 BM27-400-6A
EP6805
EP6806
EP6807
C6807 0.001 C6806 0.001 C6805 0.001 C6804 0.0047 C6803 0.001 C6802 0.001 C6801 0.001
8V
MUDL D6801 MA2S111
AFO
SEND
MICE
MIC
6
4
2 1
3
5
J6851
CIV
CIVE
J6901
MICE
MIC
MIC
CIVE
CIV
DASK
J6921
DOTK
DASK
DOTK
EP6922
EP6921
C6851 0.001 C6852 0.001
C6853 0.001 C6854 0.001 C6855 0.001
Q6851
2SK3018
R6853 47k
R6852
1k
SQSS
DOUT
AFO
DIN
C6856 1
C6962 1
AAF
4 3 2 1
8 7 6 5
12 11 10 9
13
J6951
L6953 BM27-400-6A
EP6952
L6954 LR-270
EP6955
EP6956
EP6957
EP6958
EP6960
EP6959
EP6961
C6961 0.0047 C6959 0.0047 C6960 0.0047 C6958 0.0047 C6957 0.0047 C6956 0.0047 C6955 0.0047 C6954 0.0047 C6952 0.0047 C6953 0.0047 C6951 0.0047
START
AMOD
FSK
KEY
EALC
BAND
MAIN
UNIT
(5)
C9801 0.1
C6704 0.0047 C6703 0.0047 C6702 0.0047 C6701 0.0047
R6851 10k
PTTP
DATA
to microphone
REMOTE
KEY
ACC
EXT-SP
MAIN UNIT(6)
SQLS
14V
SQLS
SEND
BDT
ISPO
ESPE
GND
3V
8V
14V
5V
5V
AMOD
AAFO
C6950 470
L7373
BM27-400-6A
to chassis
SP1
MDT
MSST
SPBK
MCK
5V
SPCH
to optional
unit
UT-102
to PA
unit J41
to PA
unit J1
L6951 BM27-400-6A
R6766 47k
8V
EALC
BAND
DIN
PTTP
DAFO
5V
5V
HV 14V SQLS
5V
5V HV 8V
HV 5V
HV
HV
SQLS
SEND
8V
8V SEND SQLS 14V
C6871 0.001 C6872 0.001
EP6851
EP6852
EP6871
EP6872
EP6853
EP6854
EP6855
EP6873
EP6874
EP6875
C6875 0.001 C6874 0.001 C6873 0.001
L6963
LR-270
C6827 0.001 C6826 0.001 C6825 0.001 C6823 0.001 C6822 0.001 C6821 0.001
L6828 2943-666663
EP6827
EP6826
EP6822
EP6821
EP6823
EP6825
EP6911
EP6912
EP6923
EP6924
MDT
MSST
SPBK
MCK
5V
GND
GND
SPCH
EP6902
EP6901
EP6876
T8V
GND
DOUT
SQLS
GND
14V
AAFO
AMOD
SQLS
FSK
KEY
LOCK: 3.2V
UNLOCK: 0V
SQL CLOSE: 7.9V
OPEN:0V
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