Sony STR-DB795 Service Manual ▷ View online
STR-DB795
46
46
STR-DB795
JW501
JW503
JW505
JW508
JW509
JW510
JW511
JW513
JW514
JW515
JW516
JW518
JW520
JW522
JW524
JW527
JW519
JW512
JW507
JW506
CN450
C698
CN449
CN448
C549
R548
R598
RY449
C599
C498
C548
C444
C448
C598
RY549
C443
RY444
L599
L549
L499
L449
R443
R493
R599
R549
R499
R449
C493
C449
R444
R447
D444
D449
D549
R547
C499
R498
R448
CN447
JW701
JW705
JW706
JW704
JW707
CN451
R749
CN444
C748
C494
C648
CN443
L699
D649
R699
L649
R649
R698
R748
R697
R647
R648
RY699
RY649
C699
C749
C649
L749
R209
C210
D699
CN2707
CN2706
CN452
CN453
1-863-052-
11
(11)
SP-A BOARD
–
+
–
+
–
+
–
+
–
+
–
+
(CHASSIS)
(CHASSIS)
L
R
SURR
L
R
FRONT B
L
R
FRONT A
TM699
TM449
(CHASSIS)
SPEAKERS
IMPEDANCE
USE 4 – 16
Ω
SPEAKERS
IMPEDANCE
USE 4 – 16
Ω
TM444
-1
-2
-2
-1
-2
1
8
MAIN BOARD
CN410
26
MAIN BOARD
CN411
23
SP-B BOARD
1-863-053-
11
(11)
J203
(CHASSIS)
(CHASSIS)
–
+
–
+
–
+
L
R
CENTER
SURR
BACK
-1
-2
-1
-2
SUB WOOFER
AUDIO OUT
6
1
MAIN BOARD
CN413
24
MAIN BOARD
CN412
28
1-863-054-
11
(11)
STAY 3 BOARD
STAY 4 BOARD
1-863-050-
11
(11)
AU-IN
BOARD
CN104
42
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
(CHASSIS)
(Page 38)
(Page 38)
(Page 36)
(Page 38)
(Page 38)
6-29. PRINTED WIRING BOARDS – SP Section –
:Uses unleaded solder.
•
See page 23 for Circuit Boards Location.
STR-DB795
47
47
STR-DB795
CN2706
CN2707
CN453
CN452
D549
R547
D444
R444
D449
R447
R449
R499
R599
R549
CN449
CN448
D699
C210
R209
R749
R699
CN444
CN443
CN447
CN450
CN451
RY549
RY444
RY449
L449
L599
L549
L499
R548
R598
R443
R493
R448
R498
TM449
TM699
R748
R698
R697
L649
L699
D649
R649
R648
RY699
RY649
TM444
L749
C598
C448
C499
C449
C493
C443
C599
C549
C698
C498
C548
C444
C749
C699
C649
R647
C748
C494
C648
J203
4P
4P
4P
4P
1SS133
10
1SS133
10
1SS133
10
10
10
10
10
8P
4P
1SS133
2200p
1k
10
10
6P
4P
4P
4P
4P
10
10
10
10
10
10
10
10
10
1SS133
10
10
470p
470p
0.01
0.01
0.01
0.01
0.01
0.01
470p
470p
470p
470p
0.01
0.01
0.01
10
470p
470p
470p
1P
GND
GND
GND
SR
SL
GND
FL
FR
24V(RY)
FA-RY
FB-RY
SR-RY
(CHASSIS)
(CHASSIS)
(CHASSIS)
SBR
24V(RY)
GND
GND
GND
C
SW
GND
C/SB-RY
SBL(C)
(CHASSIS)
(CHASSIS)
(CHASSIS)
-1
-2
-1
-2
-1
-2
R
L
SURR
R
L
FRONT B
R
L
FRONT A
-1
-2
-1
-2
R
L
SURR BACK
CENTER
SUB WOOFER
AUDIO OUT
IMPEDANCE
SPEAKER
IMPEDANCE
SPEAKER
USE 4-16
Ω
USE 4-16
Ω
6-30. SCHEMATIC DIAGRAM – SP Section –
(Page 40)
(Page 40)
(Page 37)
(Page 40)
(Page 40)
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
STR-DB795
48
48
STR-DB795
JW1004
JW1005
JW1006
JW1007
JW1011
JW1026
JW1062
R1005
RV1061
IC1006
FL1603
C1071
C1014
R1009
C1051
R1055
R1004
C1009
C1002
C1006
C1005
C1007
C1001
C1008
R1042
R1054
R1053
R1052
R1047
R1046
R1045
R1044
R1043
R1059
R1058
JW1063
R1056
R1012
R1011
C1026
C1025
C1024
C1023
C1022
C1021
C1020
C1019
C1018
C1017
C1016
C1015
C1013
C1012
C1011
Q1032
Q1031
C1031
R1031
R1035
R1033
R1032
R1037
CN1080
R1036
C1010
C1003
S1042
S1041
D1031
S1043
S1044
S1045
S1046
S1047
S1051
S1052
S1053
S1054
S1065
S1056
RV1052
RV1051
S1057
S1050
IC1051
D1071
JW1061
JW1019
JW1021
JW1022
JW1018
JW1017
JW1016
JW1012
JW1013
JW1014
JW1015
JW1023
JW1024
JW1025
C1027
TP100
CN1061
JW1027
CN1001
JW1028
JW1029
JW1003
JW1002
JW1020
JW1001
JW1030
JW1031
JW1032
JW1008
IC1001
RV1060
CN1060
CN1062
R1060
R1057
S1062
S1061
E
1
1
7
14
8
44
22
12
FLUORESCENT INDICATOR TUBE
11
33
34
23
E
1-688-640-
11
(CHASSIS)
(15)
DISPLAY BOARD
VOL
BOARD
1-688-642-
11
(15)
ROTARY
ENCODER
1-688-641-
11
(15)
1
1
3
3
ROTARY ENCODER
1
1
1
3
5
3
MASTER
VOLUME
VOLUME
INPUT
SELECTOR
INPUT
MODE
MODE
DIRECT BOARD
1-863-679-
11
(16)
MULTI
CH IN
DIRECT
FUN BOARD
DIGITAL BOARD
CN1105
3
DISPLAY
5
16
23
38
41
42
2
1
MULTI CHANNEL DECODING
TUNING
PRESET
TUNING
TUNING
−
+
−
+
SURR BACK
DECODING
2CH
A. F. D.
MOVIE
MUSIC
ROTARY ENCODER
MENU
3
1
ROTARY ENCODER
−/+
3
1
1
5
HP-V3 BOARD
CN1081
10
MAIN MENU
MEMORY/ENTER
SPEAKERS
1
3
S1041 − 1047,
S1050 − 1054,
S1050 − 1054,
S1056, 1057, 1061,
S1062, 1065
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
11
12
13
14
(Page 32)
(Page 25)
6-31. PRINTED WIRING BOARDS – DISPLAY Section –
:Uses unleaded solder.
•
See page 23 for Circuit Boards Location.
D1031
F-9
D1071
F-7
IC1001
E-9
IC1006
D-9
IC1051
E-1
Q1031
F-10
Q1032
F-9
•
Semiconductor
Location
Location
Ref. No. Location
STR-DB795
49
49
STR-DB795
6-32. SCHEMATIC DIAGRAM – DISPLAY/FUN/VOL/DIRECT Boards –
R1042
R1035
R1032
C1031
R1033
C
1026
C
1025
C1024
C1023
C10
22
C102
1
C10
20
C1019
C10
18
C101
7
C
1016
C
1015
C1014
C1013
C1011
C1007
C1006
C1005
C1009
IC1006
R1031
R1037
Q1032
Q1031
R1059
R1058
C1051
R1009
CN1080
R1005
R1012
C1012
FL1603
S1054
S1053
S1052
S1051
R1047
R1046
R1045
R1044
R1043
CN1060
R1036
C1071
RV1060
RV1061
S1042
S1041
S1057
S1050
RV1052
RV1051
D1031
R1011
R1004
S1047
S1046
S1045
S1043
S1044
S1056
S1065
JW1061
JW1062
JW1063
CN1001
D1071
JW1014
C1008
IC1001
C1001
C1002
JW1015
C1003
R1057
R1060
S1061
S1062
CN1061
CN1062
R1052
R1053
R1054
R1055
R1056
TP100
C1027
IC1051
C1010
1k
10k
10k
0.1
56
220p
220p
22
0p
2
20p
2
20p
22
0p
2
20p
2
20p
22
0p
2
20p
220p
2
2
0p
22
35V
0.1
0.1
220p
220p
0.1
0.1
TC74ACT08P
220
4.7k
2SC2785
2SA1175
100
10
47
16V
47k
5P
82k
1
0.1
22k
10k
4.7k
2.2k
2.2k
3P
4.7k
47
16V
SEL5E20C
TP15
1
47k
31P
HZ6.8BP
-TK
100
220p
PT6315
100p
100p
100
2200p
22k
47k
5P
3P
1k
2.2k
2.2k
4.7k
10k
0.1
NJL24H400A
220
10V
10V
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
GRID1
GRID2
GRID3
GRID4
GRID5
GRID6
GRID7
GRID8
GRID9
GRID10
GRID11
GRID12
GRID1
GRID2
GRID3
GRID4
GRID5
GRID6
GRID7
GRID8
GRID9
GRID10
GRID11
GRID12
GND
GND
H.P SW
VCC(3.3V)
OPT GND
OPT OUT
VOL+
VOL-
VOL+
VOL-
FL CLK
FL DATA
AD1
AD2
FUNC+
FUNC-
VOL+
VOL-
POWER
SIRCS
FL STB
+5V
-28V
+3.3V
HP SW
MENU -
MENU +
-/+ +
-/+ -
SP SW
+3.3V(STBY)
V3 OPT
FLUORESCENT INDICATOR TUBE
ROTARY ENCODER
MASTER
VOLUME
ROTARY ENCODER
INPUT
SELECTOR
DISPLAY
INPUT MODE
SPEAKERS
DISP GND
DISP GND
DISP GND
OPT GND
OPT GND
ROTARY ENCODER
-/+
ROTARY ENCODER
MENU
REMOTE
CONTROL
RECEIVER
VCC
GND
OU
T
MULTI CHANNEL DECODING
LED DRIVE
CONTROL
DIMMER
SWITCH
H.P SW GND
INDICATOR TUBE
FLUORESCENT
GRID9
VSS
VDD
GRID1
GRID2
GRID3
GRID4
GRID5
GRID6
GRID7
GRID8
GRID12
GRID11
GRID10
SEG10
VEE
SEG11
SEG12
SEG
13
SEG14
SEG15
SEG16
SEG9
VDD
VSS
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
KEY2
KEY1
STB
CLK
DIN
DOUT
OSC
LED4
LED3
LED1
LED2
DRIVER
LEVEL SHIFT
MUSIC
MOVIE
A.F.D.
2CH
TUNING
-
+
DECODING
PRESET
TUNING
-
+
MEMORY/ENTER
MAIN MENU
SURR BACK
AC 6V
GND
AC 6V
MULTI
CH IN
DIRECT
GND
GND
AD2
GND
AD2
(CHASSIS)
(Page 33)
(Page 29)
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.