2
3
4
5
A
B
C
D
E
F
G
H
7-5
7-5
WRR-801/801A
WRU-801/801A
1
I
J
K
L
M
N
O
P
MB-761 (2/2)
MB-761 (2/2)
MB-761 (2/2)
BOARD NO.1-666-758-11
WRR-801/801A
B-WRR801A-MB761/M
J1001
J1201
J1101
J1301
J1401
J1501
J1601
S1802
S1803
C1814
C1871
C1029
C1129
C1229
C1329
C1429
C1529
C1629
C1028
C1027
C1127
C1128
C1227
C1228
C1327
C1328
C1427
C1428
C1527
C1528
C1627
C1628
C1604
C1605
C1606
C1607
C1608
C1611
C1613
C1614
C1612
C1610
C1609
C1615
C1616
C1617
R1636
R1637
R1634
R1628
R1635
R1629
R1638
R1639
C1913
C1914
R1632
R1633
R1630
R1631
S1801
R1803
R1804
R1851
R1852
C1902
C1904
C1906
C1908
C1910
C1912
C1901
C1903
C1905
C1907
C1909
C1911
TP1027
TP1029
TP1031
TP1033
TP1035
TP1037
TP1028
TP1030
TP1032
TP1034
TP1036
TP1038
TP1040
TP1039
R1601
R1602
R1603
R1604
R1605
R1606
R1607
R1608
R1610
R1609
IC1601(4/4)
IC1601(3/4)
IC1601(2/4)
R1611
R1612
R1623
R1620
R1614
R1617
R1618
R1622
R1626
R1619
R1613
R1616
R1621
R1615
R1627
IC1601(1/4)
IC1602(1/2)
IC1603(1/2)
IC1603(2/2)
IC1602(2/2)
Q1601
Q1602
Q1603
Q1604
Q1605
Q1606
Q1608
Q1607
100p
CH
100p
CH
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
1000p
B
0.1µ
F
0.1µ
F
3300p
B
100µ
6.3V
100µ
6.3V
0.1µ
F
0.1µ
F
0.1µ
F
0.1µ
F
470p
CH
470p
CH
330p
CH
100µ
6.3V
100µ
6.3V
5.6k
0
NC
NC
75
75
5.6k
0
47µ
25V
47µ
25V
NC
0
NC
0
12k
10k
12k
10k
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
47µ
25V
10k
10k
10k
10k
10k
10k
4.7k
100
15k
1.8k
µPC4574G2
µPC4574G2
µPC4574G2
10k
10k
5.1k
5.1k
12k
5.1k
150
150
NC
NC
12k
12k
5.1k
12k
10k
µPC4574G2
NJM4560M
NJM5532M
NJM5532M
NJM4560M
DTC323TK
DTC323TK
DTC323TK
DTC323TK
NC
NC
NC
NC
+B
ATT SW A COM
ATT SW B COM
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
5
4
6
5
4
6
1
2
3
4
5
6
7
8
9
10
11
12
12
13
14
4
11
10
9
8
5
6
7
3
2
1
3
2
1
4
8
3
2
1
8
4
5
6
7
5
6
7
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
1/2
1/2
1/2
AFOUT4
AFOUT5
AFOUT6
AFOUT1
AFOUT2
AFOUT3
MUTE
-9V
GND
+9V
AUDIO OUT1(+)
AUDIO OUT1(-)
AUDIO OUT6(-)
AUDIO OUT6(+)
AUDIO OUT5(-)
AUDIO OUT5(+)
AUDIO OUT4(-)
AUDIO OUT4(+)
AUDIO OUT3(-)
AUDIO OUT3(+)
AUDIO OUT2(-)
AUDIO OUT2(+)
TUNER OUTPUT 1
TUNER OUTPUT 2
TUNER OUTPUT 3
TUNER OUTPUT 4
TUNER OUTPUT 5
TUNER OUTPUT 6
MIX OUTPUT
ANTENNA A ATT
ANTENNA B ATT
0V
0V
0V
+9V
-9V
+9V
-9V
+9V
-9V
H
I
K
L
J
K
L
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
[dBu]
_
20
_
22
_
24
_
26
_
28
_
30
_
32
_
28.0
_
28.0
_
28.0
_
28.0
_
27.5
_
26.5
_
23.0
_
23.0
_
27.0
_
26.5
_
23.0
VR:MAX
_
23.0
IC1001
(12)
A
IC1001
(14)
B
IC1001
(8)
C
IC1001
(7)
D
IC1003
(1)(7)
E
AF OUT(1)
F
IC1001
(1)
G
IC1601
(16)
H
IC1601
(8)
I
IC1601
(7)
J
IC1603
(1)(7)
K
MIX OUT
L
AF LEVEL DIAGRAM (MB-761 board)
Note:
.
The AF level shows the value when the following reference signal is
supplied to the ANTENNA A and B IN connectors from a SSG.
RF : Level input 60 dB
u
FM :
±
5 kHz deviation at 1 kHz modulation
0 dB
u
= 1
u
V(at no load)
0 dB
u
=
_
113 dBm(0 dBm = 1 mW, 50
Z
load)
0 dBu = 0.775 Vms