Sony STR-DB795 Service Manual ▷ View online
STR-DB795
34
34
STR-DB795
JW359
JW361
JW363
JW366
JW367
JW369
JW370
JW350
JW352
JW354
JW356
JW353
JW351
JW371
JW372
JW355
R362
R361
RY351
FB354
FB353
R387
L375
C398
RY354
CN351
RY353
RY352
R360
R357
D352
C380
C381
C382
Q372
Q370
Q371
Q352
X370
L373
L372
L374
L371
L370
C385
IC372
C384
C369
R358
D351
C388
C395
C397
C366
C377
C378
C375
C389
C396
C394
C399
C390
C383
C391
C368
C365
C362
C374
C376
C360
C361
C373
C371
C363
C379
C393
R374
R371
C392
R359
Q351
R375
R382
R383
R379
R378
R377
R373
R380
R376
R372
R392
R389
R388
R390
R391
C372
C370
C364
R381
R386
JW373
JW374
JW375
IC370
C357
C387
C356
C355
L377
C354
C386
L376
JW358
C353
JW364
R365
R366
R367
R369
CNP352
JW362
JW365
JW368
C352
R363
JW357
R368
C367
JW376
JW300
IC371
E
E
E
E
E
9
16
8
1
1-863-048-
11
(11)
COMP-V BOARD
Y
P
B
/C
B
/B-Y
DVD IN
P
R
/C
R
/R-Y
TV/SAT IN
COMPONENT VIDEO
J351
-1
-2
RY351 – 354
1
4
5
8
1
3
S-VIDEO
BOARD
CN854
13
DIGITAL BOARD
CN1111
52
1
14
28
15
A
B
C
D
E
1
2
3
4
5
6
7
MONITOR
OUT
(Page 32)
(Page 25)
D351
C-6
D352
C-7
IC370
C-3
IC371
D-2
IC372
B-5
Q351
D-6
Q352
D-7
Q370
D-4
Q371
D-5
Q372
B-2
•
Semiconductor
Location
Location
Ref. No. Location
6-17. PRINTED WIRING BOARD – COMP-V Section –
:Uses unleaded solder.
•
See page 23 for Circuit Boards Location.
STR-DB795
35
35
STR-DB795
R388
D351
D352
Q351
Q352
R360
R358
R357
J351
C374
C375
C376
L371
R376
C368
R374
C372
C373
R375
R377
C369
R363
R371
C370
L370
R372
C371
R362
R361
C378
C352
C380
R378
C381
C379
L376
Q371
C384
C353
C382
C367
C366
C355
C356
C387
C385
C357
C
3
83
C
3
89
L372
JW300
C354
C390
C388
C386
L
37
3
L
3
7
7
R369
R368
C377
C362
FB354
C391
C392
R386
R365
R366
C393
C396
C397
FB353
C395
R387
C394
C398
R380
R382
C364
C363
R381
L374
R383
C365
R379
R389
C399
C360
R390
C361
R391
CN351
CNP352
R373
R367
IC370
L375
IC372
Q370
Q372
R359
X
37
0
R392
IC371
RY351
RY352
RY353
RY354
390
1SS133
1SS133
2SC2785
2SC2785
10k
10k
2.2k
9P
470
10V
10V
22
50V
47
10V
1k
4.7
50V
1M
12p
22p
1.2k
820
0.1
1M
1.2k
12p
820
22p
1k
1k
0.1
0.1
0.01
820
0.01
180p
2SC2785
0.1
100
10V
0.1
0.01
0.1
0.47
50V
0.01
0.01
0.01
0.01
1
00
1
0V
0
.1
0.1
100
10V
10V
0.1
100
10V
10V
33k
33k
0.1
470
10V
47
10V
0.1
10k
100
100
15p
4.7
50V
0.01
0.01
10k
2.2
50V
50V
56p
12k
1.2k
12p
22p
12k
1.8k
47
10V
820
390
10
50V
560p
1M
390p
15k
11P
3P
820
10k
TC90A69N
NJM2268D
2SC2785
2SC2785
2.2k
*
*
*
SW4
SW3
+5V
GND
V
Y
C
NC
NC
NC
NC
SCL
SDA
RESET
*
VIDEO SYNC
SEPARATOR
SEPARATOR
VIDEO AMP
BUFFER
Y SYNC
BUFFER
C SYNC
BUFFER
VIDEO
Q351,352
RELAY DRIVE
L375
22uH
33uH
(EXCEPT TW,KR)
(TW,KR)
*
(EXCEPT TW,KR)
(TW,KR)
3.5795MHz
4.43MHz
*
(EXCEPT TW,KR)
(TW,KR)
IC371
X370
MM1093NF
MM1093PFB
(EXCEPT TW,KR)
(TW,KR)
4.7k
5.6k
CLOCK GENERATOR
OSC R
NC
FSC
OUT
GND2
GND1
X'TAL
APC1
FILTER
FILTER
ACC
CHROMA
IN
VCC 1
VCC 2
OSC C
FILTER
APC2
OUT
4FSC
FILTER
BURST GATE
IN
C
O
M
P
O
S
IT
E
VIN2
VOUT1
VIN1
GND
VSAG1
VOUT2
NC
V+
-1
-2
-1
-2
-1
-2
-1
-2
R
R
B
B
Y
P /C /R-Y
P /C /B-Y
R
R
P /C /R-Y
B
B
P /C /B-Y
Y
Y
R
R
P /C /R-Y
B
B
P /C /B-Y
COMPONENT
VIDEO
MONITOR OUT
COMPONENT
VIDEO
DVD IN
COMPONENT
VIDEO
TV/SAT IN
27
µH
27
µH
100
µH
100
µH
27
µH
100
µ
H
100
µ
H
(Page 29)
(Page 33)
6-18. SCHEMATIC DIAGRAM – COMP-V Section –
•
See page 54 for Waveform.
•
See page 55 for IC Block Diagrams.
STR-DB795
36
36
STR-DB795
CN132
JW101
JW102
JW103
JW104
JW105
JW106
JW107
JW108
JW109
JW110
JW111
JW112
JW113
JW114
JW115
JW117
JW118
JW119
JW120
JW121
JW122
JW123
JW124
JW125
JW126
JW127
JW128
JW129
JW130
JW131
JW132
JW133
JW134
JW136
JW138
JW139
JW141
JW143
JW145
JW147
JW148
JW149
JW151
JW153
JW154
JW155
JW156
JW157
JW158
JW159
JW160
JW162
JW164
JW165
JW166
JW168
JW169
JW170
JW171
JW172
JW175
JW176
JW177
JW178
JW179
JW180
JW181
JW182
JW183
JW184
JW185
C161
JW174
JW173
JW167
C181
C171
JW163
JW161
C115
CN104
R171
R173
R172
R178
R181
C121
C140
R184
C135
C136
C137
C138
C141
C142
C143
C144
C145
C146
C175
R119
IC101
IC110
IC111
IC112
IC131
C174
R110
R101
R111
R103
R104
R105
R106
R112
C120
R114
R102
R145
R143
R175
R113
C139
R845
R840
R187
R186
R185
R182
R183
R177
R176
R174
R156
R155
R154
R153
R152
R151
R148
R147
R146
R144
R142
R141
R140
R139
R138
R137
R136
R135
R134
R133
R132
R131
C133
R115
C132
C131
C122
C114
C112
C101
CN103
CN102
C102
C103
C104
C105
C106
C107
C110
C113
C111
C123
IC171
IC172
C134
JW137
JW140
JW142
JW144
JW146
JW116
JW211
JW212
JW202
JW150
JW152
JW135
JW221
JW222
JW223
IC173
1
14
28
15
AU-IN BOARD
1-688-644-
11
(15)
R
L
(CHASSIS)
R
L
R
L
R
L
FRONT
R
L
SURR
R
L
SUB WOOFER
CENTER
ANALOG
MULTI CH IN
J101
J151
J131
ANALOG
(CHASSIS)
(CHASSIS)
MAIN BOARD
EB403
45
MAIN BOARD
CN405
15
MAIN BOARD
CN404
14
1
21
42
22
1
4
8
5
1
4
8
5
1
4
8
5
1
4
8
5
5
8
4
1
STAY 3 BOARD
CN2707
42
5
8
4
1
A
B
C
D
E
1
2
3
4
5
6
7
PHONO
IN
MD/TAPE
IN
MD/TAPE
OUT
SA-CD/CD
IN
(Page 46)
(Page 38)
(Page 38)
(Page 38)
IC101
D-4
IC110
B-4
IC111
B-3
IC112
B-2
IC131
B-5
IC171
E-1
IC172
B-1
IC173
C-2
•
Semiconductor
Location
Location
Ref. No. Location
6-19. PRINTED WIRING BOARD – AU-IN Section –
:Uses unleaded solder.
•
See page 23 for Circuit Boards Location.
STR-DB795
37
37
STR-DB795
R175
IC111
IC110
R114
R115
R113
R112
R111
R110
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
C143
C141
R137
R141
C137
R135
C144
C142
R140
R138
R142
R136
R133
R147
R148
R134
C138
R156
R155
R154
R153
R152
R151
R101
R102
R103
R104
R105
R106
J131
J151
J101
CN102
CN103
CN104
C145
C146
C139
C140
C135
C136
C131
C133
C134
C132
R187
R185
R131
R132
C107
CN132
IC131(1/2)
IC131(2/2)
C114
C115
C181
C113
C110
C111
C112
C171
JW148
JW146
C161
JW145
JW154
C102
C101
C103
C106
C105
C104
10k
M5218AP
M5218AP
47k
47k
47k
47k
47k
47k
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
0.033
0.0091
8.2k
100
100p
180
0.033
0.0091
100k
8.2k
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
4P
2.2
50V
2.2
50V
50V
220
10V
10V
220
10V
10V
2.2
50V
2.2
50V
100P
220P
220P
100P
10k
10k
2.2k
2.2k
2200p
M5218AP-22
M5218AP-22
100
50V
50V
100 50V
100
50V
50V
100
50V
50V
100
50V
50V
100
50V
50V
100
50V
50V
100
50V
50V
220
220
0.01
220
220
100p
100p
100p
100p
100p
100p
A1
A2
A3
A4
A5
A1
A2
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
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
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
GND
LAT
DAT
CLK
VSS
VDD
NC
GND
(CHASSIS)
(CHASSIS)
(CHASSIS)
GND
AUDIO SELECTOR
VSS
VDD
LINE AMP
LINE AMP
LINE 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
ANALOG
ANALOG
MULTI CH IN
BUFFER
BUFFER
PHONO EQ
AMP
SA-CD/CD IN
(Page 39)
(Page 40)
(Page 47)
(Page 39)
6-20. SCHEMATIC DIAGRAM – AU-IN Section –
•
See page 55 for IC Block Diagrams.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Click on the first or last page to see other STR-DB795 service manuals if exist.