Icom IC-7700 Service Manual page 122

Hf-50mhz transceiver
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R8V
+3R3V
+15V
+8V
RL
IC1901
18
1
O1
I1
R1902
17
2
O2
I2
R1903
10
16
3
O3
I3
10
15
4
R1904
TRVTXG
O4
I4
TRVT X
R1905
10
14
5
TRVT X
O5
I5
+15 V
R1906
10
13
6
+15V
O6
I6
-12V
R1907
10
12
7
-12V
O7
I7
R1908
10
11
8
+8V
+8V
O8
I8
10
+5V
10
9
+5V
GND
VCC
T8V
T8V
TD62783AFG
C1901
TXB1
0.1
TXB1
TXB2
TXB2
TXB3
TXB3
TXB4
TXB4
TXB5
TXB5
TXB6
TXB6
TXB7
IC1902
TXB7
TXB8
R1909
18
1
TXB8
O1
I1
10
17
2
TXB9
R1910
TXB9
O2
I2
TXB10
R1911
10
16
3
TXB1 0
O3
I3
R1912
10
15
4
O4
I4
MODS
R1913
10
14
5
MODS
O5
I5
R1914
10
13
6
TRVST
TRVS T
O6
I6
10
R1915
12
7
DRIV
O7
I7
R1916
10
11
8
ALC
O8
I8
10
10
9
T XIF
GND
VCC
TD62783AFG
To RF-3
C1902
0.1
+3R3V
+3R3 V
-12V
-12V
+15 V
+15V
DAGC
MAGC
RXIF
I C1703
16
RXIF
18
1
15
O1
I1
17
2
14
O2
I2
HPOFF
R1702
100
16
3
13
HPOFF
O3
I3
VP1OF
R1703
100
15
4
12
VP1O F
O4
I4
14
5
11
VPR2
R1704
100
VPR2
O5
I5
VPR1
R1705
100
13
6
10
VPR1
O6
I6
HPR2
R1706
100
12
7
9
HPR2
O7
I7
HPR1
R1707
100
11
8
HPR1
O8
I8
10
9
GND
VCC
TD62783AFG
16
HF3V
R1709
H SEL
HF3 V
VH3V
R1710
2 .2K
VSEL
15
VH3V
1IFW
R1711
2 .2K
IFW
14
1IFW
R1712
6 .8K
IFN
13
1IFN
1IFN
12
1IFNN
R1715
6 .8K
I FNN
1IFNN
6.8K
11
10
9
To RF-2
TRVTXG
W2
TRVT X
W1
R8V
+3R3V
TRVS
T8V
+15 V
+8V
-12V
M PZ1608S221A
T8V
DRESL
L1902
C1903
10U
0.1
I C1903
16
1
RSTBT
VCC
STROBE
15
2
M DAT
OE
DATA
14
3
MCK
Q4
CP
13
4
RSTBR
Q5
Q0
12
5
Q6
Q1
11
6
Q7
Q2
10
7
QS 2
Q3
9
8
QS 1
GND
CD74HC4094M
RMUT
C1904
0.1
I C1904
16
1
VCC
STROBE
15
2
OE
DATA
14
3
Q4
CP
13
4
Q5
Q0
12
5
Q6
Q1
11
6
RANS
Q7
Q2
10
7
QS 2
Q3
9
8
QS 1
GND
RSEL
CD74HC4094M
RXIF
TXIF
+3R3V
-12V
+15 V
DRIV
IC1701
ALC
1
RSTBR
MAGC
VCC
STROBE
2
MDAT
DAGC
OE
DATA
3
MCK
EPAD
Q4
CP
4
MUTEI
Q5
Q0
5
ME T
Q6
Q1
6
BPS T
Q7
Q2
7
RSTBT
QS2
Q3
8
RSTBR
QS1
GND
CD74HC4094M
DRESL
MCK
MDAT
MCK
MDAT
IC1702
1
VCC
STROBE
2
OE
DATA
3
Q4
CP
4
Q5
Q0
5
Q6
Q1
6
+15V
Q7
Q2
7
+8V
QS2
Q3
8
+3R3V
QS1
GND
+5V
CD74HC4094M
-12V
BPO E
Q 2002
D TA114EU
J391
TMP-J01X-V6
P1
C395
C393
0.015
0.015
L394
R384
330U
680
R392
R381
680
D TC114EU
4.7K
L391
R385
Q38 3
330U
680
R393
Q384
680
L395
DTC114EU
330U
R391
R395
680
100K
R390
R396
RL381
10K
680
Q38 6
Q 385
DTC114EU
D TC114EU
C394
1
XVRT
C 389
1
L392
R394
SIP-1A
Q 381
330U
680
DTC114EU
Q387
R389
DTC114EU
680
RL401
R401
220
Q403
DTA114E U
Q402
SIP-1A
2SC4081
D402
Q404
C403
C402
D TC114EU
R403
R404
2P
1
0
2 .2K
Q401
MA742
2SC4116
J1501
B4B-ZR-SM4-TF
RXIF
1
2
To MAIN UNIT J831
TXIF
3
4
J2006
52808-2271
GND
22
EP2004
MMZ1608Y102BT
DRIV_
DRIV
21
EP2005
MMZ1608Y102BT
ALC_
ALC
20
EP2006
MMZ1608Y102BT
MAGC_
AGCO
19
EP2007
MMZ1608Y102BT
DAGC_
AGCI
18
EP2008
MMZ1608Y102BT
EPAD
17
EP2009
MMZ1608Y102BT
MUTEI
16
EP2010
MMZ1608Y102BT
MET
15
R2007
0
BPS T
14
R2008
0
RSTBT
13
R2009
0
RSTBR
12
GND
11
R2010
0
DRESL
10
R2011
0
MCK
9
R2012
0
MDAT
8
GND
7
6
T8V
EP2011
MMZ1608Y102BT
T8V
5
4
R8V
EP201 2
MMZ1608Y102BT
R8V
3
2
GND
1
8
EP2018
MPZ1608S221A X6
7
EP2013
+ 15V_
6
EP2014
+8 _
5
EP2015
+ 3R3V__
4
EP2016
+5 _
3
EP2017
-12V_
2
1
J2007
B8B-PH-SM4-T B
[X-VERTER]
J103
01K1971-10
RX IN
[RX ANT IN]
J104
01K1971-10
R405
2P-50
J105
01K1971-10
[RX ANT OUT]
From ANT-SW J3
RX-ONLY
J108
TMP-J01X-V6
RX-ANT
J106
TMP-J01X-V6
From CTRL UNIT J351
10 - 18

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