Sony WRR-800A Service Manual page 43

TP1005
C1125
180p
CH
12V
C1118
560p
CH IC1101(1/4)
C1032 µPC4574G2 B
10µ C1037 C1119
16V 0.1µF 560p
B CH
0V
3 4
1
R1119 R1120
10k 10k
2
R1121
0V
680
11
0V -12V
C1121
C1120 0.01µ
330p
R1101 CH
4.7k
TP1006
WRR-800A
I J
MB-786, VR-245
12V
R1107
12k
8
2
C
1
0V
R1102
0V 3
100
0V 0V
10
IC1101(2/4)
0V
µPC4574G2 4
8
0V
9
12V
C1105
3300p
B
R1103
C1103 1.8k
0.1µ C1106
B R1104 0.1µF
15k B
C1117 C1107
C1104 NC 0.1µF
0.1µ B
B R1106
10k
R1105
10k
6
7
0V
12 5
0V
14
0V
IC1101(3/4)
13 µPC4574G2 R1108
D
12k
IC1101(4/4)
µPC4574G2
K L
MB-786, VR-245
A
TP1007
R1122
0
D1101
1SS362
3
2 1
IC1102(1/2)
NJM4560M R1113
5.1k
C1112 Q1
47µ NC
IC1103(1/2) R1115 6.3V
NJM5532M NC
2
3 8
Q1101 3
0V
DTC323TK
1
R1109 2
0V
12k
2
R1111 R1117
5.1k 150 1
4
3
0V
2
C1110 12V C1108 1
0.1µF 470p Q1103
B CH DTC323TK
C1109 Q1104
470p DTC323TK
C1111 CH 1
0.1µF
B 2
0V
R1112
6 5.1k R1118 3
150 1
R1110 7
0V
2
12k
5
5 3 2
0V
R1116 Q1102
E
7 NC DTC323TK
6
R1114 C1113
5.1k 47µ
6.3V
IC1102(2/2) IC1103(2/2)
NJM4560M NJM5532M D1102
2 1 1SS362
3
R1123
0
NC:NO MOUNT
MB-786
BOARD NO.1-666-752-21
7-3 7-3
M
CN1002
+B
1
TO/FROM
GND 2
CN1102,CN-1598BOARD
AF_OUT 3
AF_GND 4
CN1101 CN1201
VR_IN 1 1 VR_IN
VR_OUT 2 2 VR_OUT
GND 3 3 GND
F
C1122
TP1009 1000p
C1114
CH
47µ
J1101
25V
2
3
TUNER OUTPUT
1
3
AF LEVEL DIAGRAM (MB-786 board)
[dBu]
C1115 TP1010
1 47µ
VR:MAX
_20
3 25V
C1124 C1123
2 1000p 1000p
F CH CH
1
Q2
NC _22
_24
Q4
NC
1
_26
2
3
_28.0 _28.0
1
_27.5
_28
Q3
NC
3
_30
_32
IC1101 IC1101 IC1101
(3) (1)
A B
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 dBu
FM : ±5 kHz deviation at 1 kHz modulation
0 dBu = 1 uV(at no load)
0 dBu = _113 dBm(0 dBm = 1 mW, 50 Z load)
0 dBu = 0.775 Vms
N O
1
RV1201
10k
VR-245
BOARD NO.1-666-754-21
2
_23.0 _23.0
3
HOT
COLD
_27.5
IC1101 IC1103
(8) (7) (1)(7) AF OUT
C D E F
4
RE-157
5
BOARD NO. 1-666-755-21
VR-245
BOARD NO. 1-666-754-21
MB-786
BOARD NO. 1-666-752-21
WRR-800/800A
B-WRR800A-MB786/M
P