Icom IC-7851 Servise Manual page 163

RF-B UNIT (RF-B-1)
TO DIGISEL-B J2
[RFINB]
C1701
J1701
TO DIGISEL-B J1
[RFOUTB]
J1702
RL1701
FTR-B4CA009Z
HF_RX
50M_RX
+15V
+11V
HF3V
VHF3V
HFDW
VHFDW
HPRE
HPRE2
HPRE1
VPRE
VPRE1
VPRE2
MIX1V
+15V
+11V
VHF3V
HF3V
IFW
IFM
IFN
IFSN
-12V
AGC
AGCDET
D1801
LRB706F
EP1802 MMZ1608Y102BT
EP1803 MMZ1608Y102BT
EP1806 MPZ1608S601A
TO DSP J61
J1801
GND
2 1
4 3 EP1805
+15V +15V
6 5
-12V MPZ2012S601A
8 7
+11V
10 9
+11V +11V
12 11 EP1801
MPZ1608S601A
+11V +11V
EP1804 14 13
+3R3V MPZ2012S601A
16 15
RBAGC_DET
18 17
RBAGCV
20 19
GND
22 21
NC MIXBV 1K
R1801
24 23
R1804 22
DRESH NC
25
26
R1806 22 22
MDAT MCK R1805
28 27
GND RBSTB R1807 22 STBRF
30 29
MDAT
RESH
EP1807
MPZ1608S601A
IC1901
QH' GND
9 8 1
SCLR QH I1
MCK 10 7 2
SCK QG I2
STBRF 11 6 3
RCK QF I3
RESH 12 5 4
G QE I4
MDAT 13 4 5
SI QD I5
14 3 6
QA QC I6
15 2 7
VCC QB I7
16 1 8
I8
SN74AHC595PW 9
VCC
C1901 0.1
62783G
IC1902
R1901
QH' GND
9 8 R1902
SCLR QH
10 7
SCK QG
11 6
R1904
RCK QF
12 5
R1905
G QE
13 4 R1906
SI QD
14 3 R1907
QA QC
15 2 R1908
VCC QB
16 1
SN74AHC595PW
R1909
C1902 0.1
0.01
L1403 33P
LR-452 C1406
33P
C1407
47P 47P 82P
220P
RL1401
FTR-B4CA009Z
L1451
27U
L1453 15P
LR-454 C1456
HF3V
22P
VHF3V
HFDW
C1457
VHFDW
HPRE
HPRE2
HPRE1
180P 47P 18P 47P
VPRE
VPRE1 RL1451
VPRE2 FTR-B4CA009Z
MIX1V
L1501
10U
C1506
L1503
LR-456 10P
33P
VHF3V
C1507
HF3V
IFW
IFM
IFN
120P 33P 18P 47P
IFSN
RL1501
FTR-B4CA009Z
L1551
6.8U
L1553 C1556
22P
LR-453
12P 22P
100P 22P
RL1551
FTR-B4CA009Z
L1601
2.2U
C1603
L1603
0.88U C1608
+15V
RL1601
FTR-B4CA009Z
L1651
MIX1V
2.2U
MCK L1653
0.22U
RL1651
FTR-B4CA009Z
IC1903
18 22
R1910
O1
22
17 R1911 HFDW
O2
16 R1912 22 VHFDW
O3
15 R1913 22 VPRE2
O4
14 R1914 22 VPRE
O5
13 R1915 22 HPRE2
O6
12 R1916 22 HPRE
O7
11 R1917
22
O8
10
GND
1K HPRE1
1K VPRE1
1K IFSN MCK
1K IFN STBRF
1K IFM RESH
1K IFW
1K VHF3V
1K HF3V
DIGI
B7
L1401
47U
33P
L1405
C1409 LR-452
C1410
33P
B7
47P 220P 68P
RL1402
FTR-B4CA009Z
B8
C1460 L1455
22P LR-454
C1461
15P
B8
8P 47P 180P 47P
RL1452
FTR-B4CA009Z
B9
C1509 L1505
33P LR-456
C1510
10P
B9
18P
33P 120P
RL1502
FTR-B4CA009Z
B10
22P LR-453
C1559 L1555
B10
7P 22P 100P 15P
RL1552
FTR-B4CA009Z
B11
5P
5P
B11
RL1602
FTR-B4CA009Z
B11W
68P
C1654
B11W
RL1652
FTR-B4CA009Z
DIGI
VHF
IC1904
IC1906
QH' GND
9 8 1 18 R1919 22 ATT12
SCLR QH I1 O1
10 7 2 17 R1920 22 ATT6
SCK QG I2 O2
11 6 3 16 R1921 22 ATT3
RCK QF I3 O3
12 5 4 15 R1922 22 B11W
G QE I4 O4
13 4 5 14 R1923 22 B11
SI QD I5 O5
14 3 6 13
R1924 22 B10
QA QC I6 O6
15 2 7 12
R1925 22 B9
VCC QB I7 O7
16 1 8 11
R1926 22 B8
I8 O8
SN74AHC595PW
9 10
VCC GND
C1914
62783G
C1917
0.1
0.1
IC1905
IC1907
QH' GND
9 8 1 18
R1927 22 B7
SCLR QH I1 O1
10 7 2 17
R1928 22 B6
SCK QG I2 O2
11 6
3 16 R1929 22 B5
RCK QF I3 O3
12 5 4 15 R1930 22 B4
G QE I4 O4
13 4 5 14 R1931 22 B3
SI QD I5 O5
14 3 6 13 R1932 22 B2
QA QC I6 O6
15 2 7 12 R1933 22 B1
VCC QB I7 O7
16 1 8 11 R1934 22 B0
I8 O8
SN74AHC595PW
9 10
VCC GND
0.1
62783G
C1915
Selected 8.58 V
C1004 0.01 C1003
0.01
L1001
68N
RL1004 RL1003
FTR-B4CA009Z
FTR-B4CA009Z
R1008
100
L1051
B0
47U
L1052 L1053 L1054 L1055
8.2U 8.2U 8.2U 8.2U
0.01 0.01
RL1051
FTR-B4CA009Z
B1 L1101
47U
L1102 L1103 L1104
3.3U 3.3U 3.3U
0.0027
0.0022 0.0012
RL1101
FTR-B4CA009Z
B2 L1151
47U
L1153 C1156
LR-444 180P
27P
C1157
0.001 330P 120P 330P 47P
RL1151
FTR-B4CA009Z
B3 L1201
47U
LR-446
56P
L1203 C1206
330P
C1207
330P 330P 47P
RL1201
FTR-B4CA009Z
B4 L1251
47U
L1253
C1256
LR-458 15P
82P
C1257
180P 33P 120P 56P
560P
RL1251
FTR-B4CA009Z
B5 L1301
47U
L1303 C1306
LR-448 27P
120P
C1307
330P
150P 27P 150P 10P
RL1301
FTR-B4CA009Z
B6 L1351
47U
L1353
C1356
LR-450 33P
39P
C1357
220P 100P 22P 82P 22P
RL1351
FTR-B4CA009Z
*: Refer to the PARTS LIST for the value and name of component.
9-20
C1002 C1001
0.01
0.01
[RXB]
TO CONNECT J202
J1001
RL1002 RL1001
FTR-B4CA009Z FTR-B4CA009Z
R1005
R1002
39
18
R1051
0
B0
0.01
RL1052
FTR-B4CA009Z
R1102
L1105
3.3U
0
B1
0.0022
RL1102
FTR-B4CA009Z
C1160 L1155
180P LR-444
C1161
27P
B2
0.001 0.001
330P
RL1152
FTR-B4CA009Z
C1210 L1205
330P LR-446
C1211
56P
B3
560P 330P
330P
RL1202
FTR-B4CA009Z
82P
L1255
LR-458
C1260
C1261
15P
B4
560P 390P
180P
RL1252
FTR-B4CA009Z
120P
C1310 L1305
LR-448
C1311
27P
B5
150P
150P 330P
RL1302
FTR-B4CA009Z
LR-450
39P
C1360 L1355
C1361
33P
B6
100P
220P 220P
RL1352
FTR-B4CA009Z