Sony STR-DB798 Service Manual

STR-DB798
3535
STR-DB798
R175
IC111IC110
R114 R115R113R112R111R110
R177
R176
R173
R174
IC112
R181 R186
R184
R183
R182
IC172
IC173
R178
C175
IC171
R172
R171
R119
C123
C122
IC101
C121
C120
R840
R845
C174
R143
R144
R146
R145
R139
C143C141
R137
R141
C137
R135
C144C142
R140R138
R142
R136
R133
R147
R148
R134
C138
R156
R155
R154
R153
R152
R151
R101
R102
R103
R104
R105
R106
J131
J151
J101
CN102
CN103
C145
C146
C139
C140
C135
C136
C131
C133
C134
C132
R187
R185
R131
R132
C107
CN132
IC131(1/2)
IC131(2/2)
C171
C161
C102
C101
C103
C106
C105
C104
R158
R157
C110 C111 C112 C113
C114
C115
C181
R149R150
CN104
CN105
10k
M5218APM5218AP
47k 47k47k47k47k47k
10k
10k
4.7k
15k
M5218AP
10k 10k
15k
4.7k
15k
M5218AP
TC9273F-012
1k
100p
M5218AP
15k
10k
1k
100p
0.022
TC9274N-017
0.022
0.01
33
33
0.01
100k
100k
470
470
100k
0.0330.0091
8.2k
100
100p
180
0.0330.0091
100k8.2k
100
180
100k
100k
100k
100k
100p
1k
1k
2.2k
2.2k
1k
1k
1k
1k
1k
1k
1k
1k
4P
4P
6P
20P
20P
2.2
50V
2.2
50V
220
10V
220
10V
2.2
50V
2.2
50V
100P
220P
220P
100P
10k
10k
2.2k
2.2k
2200p
M5218AP-22
M5218AP-22
100
50V
0.01
100p
100p
100p
100p
100p
100p
220
220
100
25V
100
25V
100
25V
100
25V
100
25V
100 25V
100
25V
220220
6P
6P
A1
A2
A3
A4
A5
A1A2
A3
A3
A4
A4
A5
A5
B1
B2
B3
B4
B5
B6
B7
B8
B9
B1
B2 B3
B4 B5
B6 B7
B8 B9
B0
B0
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C1C2
C3C4
C5C6
C7C8
C9C10
C11 C12
SOURSE-L
SOURSE-R
C
SR
SL
FRONT-R
TUNER-R
TUNER-L
FRONT-L
+15V
-15V
GND
FUN-LAT
DATA
CLK
SR
GND
SL
GND
GND
GND
GND
GND
C
SW
FRONT-R
FRONT-L
GND
GND
GND
GND
GND
GND
GND
SW
GND
GND
L
R
GNDLAT
DAT CLK
VSSVDD
NC
GND
(CHASSIS)
(CHASSIS)
(CHASSIS)
GND
AUDIO SELECTOR
VSS
VDD
LINE AMP
LINE AMPLINE AMP
VSS
VDD
AUDIO SELECTOR
R
L
PHONO IN
R
L
MD/TAPE IN
R
L
R
L
MD/TAPE OUT
R
L
R
L
FRONT
SURR
SUB WOOFER
CENTER
MULTI CH IN
BUFFER
BUFFER
PHONO EQ
AMP
SA-CD/CD IN
AUDIO
AUDIO
(NC)
6-22. SCHEMATIC DIAGRAM – AU-IN BOARD –
(Page 37)
(Page 38)
(Page 33)
(Page 37)
• See page 53 for IC Block Diagrams.

Sony STR-DB798 Specifications

General

Impedance	8 Ω
Supported radio bands	FM
Radio Data System (RDS)	Yes
Channels quantity	7 channels
I/O ports	Output(Component x 1, Optical Digital x 1, Composite x 1, S-Video x 1), Input(Component x 2, Optical Digital x 4, S-Video x 4, Coaxial Digital x 2, Composite x 4)