Sony WRR-862A, Руководство по обслуживанию, Страница: 82 / 96

8-4
WRR-862A/862B
8-4
2
3
4
5
A B C D E F G H
1
.....
AF level diagram
RX-60 (2/3), CN-2176 (2/2) RX-60 (2/3), CN-2176 (2/2)
IC401
MAX2640EUT-TG069
1/3
RF_1-B
* *
*
*
*
*
*
L404
L403
L402
R402
27
R404
27
R403
33
R401
100
TB402
FL402
HF
C404
220pF
CH
C408
C405
220pF
CH
C407
C403
CN401
CL401 C406
FL401
HF
FB401
BK1608TS601
TB401
RF_2-B
Ref No.
Model
* :
C403
CE21/U14 4 pF
4 pF
4 pF
CE33/U30
CE62/CE67/
U62/U67/AU66
L402
39 nH
27 nH
18 nH
C406
15 pF
15 pF
15 pF
12 nH
10 nH
8.2 nH
12 nH
10 nH
8.2 nH
C407
5 pF
5 pF
3 pF
L403 L404 C408
4 pF
4 pF
2 pF
CN-2176 (2/2)
CN1951 CN1952
5 4 3 2
2
1 1
1 2
G6
8
G5
7
G4
6
G3
4
G2
3
FG3
11
FG2
10
OUT
5
FG4
12
G1
2
FG1
9
IN
1
5 4 3 2
1
G6
8
G5
7
G4
6
G3
4
G2
3
FG3
11
FG2
10
OUT
5
FG4
12
G1
2
FG1
9
IN
1
1 2
6
4
5
3
2
1
3.1V
0.8V
3.2V
[dB
u
]
0
_
40
_
30
_
10
_
20
+
10
_
50
_
60
_
70
_
80
A
Tuner 2: IC291-21pin
IF-ICDISCRI
OUT HEAD AMP
OUT De-emphasis
(50
u
s OUT)
LPF
OUT Pre-emphasis
(330
u
s OUT)
Expander
OUT De-emphasis
(330
u
s OUT)
Transformer
Priminaly OUTPUT
(Balanced 600
Z
)
IC701-1pin
B C
IC741-1pin IC741-7pin
D E
IC761-1pin
F
IC771-6pin IC771-7pin
G H
T1101-1pin
J
CN1902-2pin (CN-2168 board)
0 dB
u
= 1
u
V (at no load)
0 dB
u
=
_
113 dBm (0 dBm = 1 mW, 50
Z
load)
0 dBm= 0.775Vrms
Note :
• The AF level shows the value when the following reference signal is
supplied to the ANT a and b connectors from a FM SSG.
: RF level input 60 dB
u
,
±
5 kHz deviation at 100 Hz modulation
: RF level input 60 dB
u
,
±
5 kHz deviation at 1 kHz modulation
: RF level input 60 dB
u
,
±
5 kHz deviation at 10 kHz modulation
_
36.7 ( )
_
37.3 ( )
_
37.5 ( )
_
20.4 ( , )
_
20.6 ( )
_
17.5 ( )
_
19.1 ( )
_
32.2 ( )
_
37.8 ( )
_
24.1 ( )
_
1.0
+
6.0 +
6.0
+
6.0
+
6.0
+
6.0
+
6.0
+
9.0
+
9.0
_
23.6 ( )
_
39.6 ( )
_
40.5 ( )
_
58.0 ( )
_
43.5 ( )
_
33.8 ( )
_
43.2 ( )
_
59.3 ( )
_
42.2 ( )
_
57.3 ( )
_
58.0 ( )
_
77.3 ( )
_
23.8 ( )
_
24.1 ( )
_
34.2 ( )
_
23.8 ( )
Clip level