
WRR-855B
2
3
4
5
1
I
J
K
L
M
N
O
P
8-5
8-5
TUN-8 (1/2)
(Suffix:-22)
TUN-8 (1/2)
(Suffix:-22)
Notes:
• DC voltage are taken with digital multimeter (input impedance 1 M
Ω
or more)
under no-signal conditions.
0.01uF
C111
0.01uF
C113
0.01uF
C115
0.01uF
C116
0.01uF
C117
0.01uF
C118
10V
10uF
C132
10V
10uF
C147
0.022uF
C114
0.022uF
C119
0.022uF
C120
0.022uF
C121
0.022uF
C122
0.022uF
C123
0.022uF
C124
0.022uF
C125
0.022uF
C126
0.022uF
C127
0.022uF
C128
0.022uF
C129
0.022uF
C131
0.022uF
C133
0.022uF
C134
0.022uF
C149
27pF
C130
82pF
C112
82k
R115
82k
R118
10
R121
10
R122
33k
R117
33k
R120
2.2k
R129
18k
R123
18k
R130
10
R127
12
R134
270
R128
270
R136
1k
R126
1k
R133
1.2k
R125
1.2k
R132
2.2k
R135
3.9k
R119
4.7k
R116
6.8k
R124
6.8k
R131
12k
R140
10uH
L108
10uH
L109
10uH
L110
0.22uH
L107
CF101
1
2
3
CF102
1
2
3
CF103
1
2
3
CF104
1
2
3
TA8122AF(EL)
IC102
GND1
2
FMRFIN
1
VCC1
22
FMRFOUT
23
FMIFIN
8
VCC2
6
GND2
9
FMMIX
3
FMOSC
21
AMRFIN
24
AMIFIN
7
AMMIX
4
AGC
5
AMOSC
20
VCO
15
QUAD
12
ROUT
13
LOUT
14
LPF2
16
LPF1
17
MPXIN
18
DETOUT
19
TUNLED
10
STLED
11
3SK254-T2
Q104
1
2
3
4
3SK254-T2
Q105
1
2
3
4
XN6501-TW
Q106
1
2
6
3
5
4
XN6501-TW
Q107
1
2
6
3
5
4
TA31161FN(EL)
IC101
MIXIN
16
OSCIN
1
OSCOUT
2
MIXOUT
4
IFIN
7
IFOUT1
11
IFOUT2
12
QUAD
13
DEC
6
GND1
5
GND2
15
BS
3
RSSI
10
AFOUT
14
VCC2
9
VCC1
8
5V
001,002
GND
001,002
AF(A)
002
VCC
001,002
RSSI(A)
002
2ND_LO(A)
002
1ST_LO(A)
002
0.022uF
C429
0.022uF
C426
0.022uF
C423
0.022uF
C420
2.2k
R435
CF401
1
2
3
0.01uF
C417
0.01uF
C413
XN6501-TW
Q407
1
2
6
3
5
4
10
R422
CF404
1
2
3
XN6501-TW
Q406
1
2
6
3
5
4
3SK254-T2
Q405
1
2
3
4
82pF
C412
1ST_LO(B)
002
18k
R423
10uH
L409
82k
R415
2ND_LO(B)
002
270
R428
12
R434
VCC
001,002
0.022uF
C449
0.022uF
C414
0.022uF
C431
0.022uF
C427
10uH
L410
0.022uF
C424
0.022uF
C421
4.7k
R416
0.01uF
C418
0.01uF
C415
18k
R430
82k
R418
1k
R426
GND
001,002
27pF
C430
270
R436
33k
R417
TA31161FN(EL)
IC401
MIXIN
16
OSCIN
1
OSCOUT
2
MIXOUT
4
IFIN
7
IFOUT1
11
IFOUT2
12
QUAD
13
DEC
6
GND1
5
GND2
15
BS
3
RSSI
10
AFOUT
14
VCC2
9
VCC1
8
CF402
1
2
3
10V
10uF
C447
10
R427
6.8k
R424
0.022uF
C433
5V
001,002
0.022uF
C425
0.022uF
C422
1k
R433
0.022uF
C419
3SK254-T2
Q404
1
2
3
4
1.2k
R425
12k
R440
10V
10uF
C432
33k
R420
0.01uF
C416
0.01uF
C411
RSSI(B)
002
AF(B)
002
CF403
1
2
3
0.22uH
L407
10uH
L408
10
R421
6.8k
R431
TA8122AF(EL)
IC402
GND1
2
FMRFIN
1
VCC1
22
FMRFOUT
23
FMIFIN
8
VCC2
6
GND2
9
FMMIX
3
FMOSC
21
AMRFIN
24
AMIFIN
7
AMMIX
4
AGC
5
AMOSC
20
VCO
15
QUAD
12
ROUT
13
LOUT
14
LPF2
16
LPF1
17
MPXIN
18
DETOUT
19
TUNLED
10
STLED
11
3.9k
R419
2.2k
R429
1.2k
R432
0.022uF
C434
0.022uF
C428
T103
34
1
2
6
78
T403
3
4
1
2
6
7
8
NC
T102
6
1
3
4
7
8
2
NC
T402
6
1
3
4
7
8
2
0.33V
0.28V
6V
0.33V
0.28V
6V
1.65V
1.65V
1.65V
1.65V
5V
5V
6V
6V
TUN-8 (1/2)
BOARD NO. 1-681-450-22
Summary of Contents for WRR-855B
Page 1: ...UHF SYNTHESIZED TUNER UNIT WRR 855B SERVICE MANUAL 1st Edition Revised 2 ...
Page 4: ...2 WRR 855B 8 Schematic Diagrams TUN 8 8 1 CPU 342 8 8 DP 236 8 10 SW 814 8 10 ...
Page 10: ...1 6 WRR 855B Sony Corporation Printed in Japan ...
Page 38: ......
Page 58: ......
Page 67: ...7 1 WRR 855B 7 1 Section 7 Board Layouts ...
Page 83: ......
Page 84: ...Printed in Japan Sony Corporation 2006 6 16 2001 WRR 855B U CE E 9 976 898 03 ...