Sony STR-DB795 Service Manual

STR-DB795
3939
STR-DB795
R827
R830
R811R455
R405
IC805
IC804
D820
D816
D812
D819
D818
R820
R821
R501 R551 R751 R601 R401 R451
Q451Q601 Q401Q751Q551Q501
C816
C824 R833
R826
D810
RY807
R782
R829
R839
Q826
IC402
R458
C457
R403
C402
C821
C813
C812
R402
R457
R838
IC602
C752
C602
R753
R603
R552
C552
C502
R654C669
R503
R504
R604
C619
R602
R752
R502
R846
R841
CN402
CN404
CN406
CN403
CN414
R404
C
5
19
R553
IC502
C814
R828
C815
Q824
D815
R815
CN420
CN405
Q813
JW813
JW814
C419
IC652
IC501
IC651
IC601
C819
C818
JWH004
C568
C551
C817
C718
R702
C501
C701
R652
C668
C768
C651
C618
C601
C456
C468
C753
C418
C401
IC401
Q651Q701
R701 R651
Q810
R703
R653
C652
C702
Q811
C518
C751
1k
1k
10k2.2k
2.2k
TC74ACT08P
TC74ACT08P
1SS133
1SS133
1SS133
1SS133
1SS133
2.2k
10k
6.8k 6.8k 6.8k 6.8k 6.8k 6.8k
2SC3623A2SC3623A 2SC3623A2SC3623A2SC3623A2SC3623A
0.1
0.1 1M
1M
1SS133
100k
10
10k
2SC2785TP
-FEK
M5218AP
100k
220p
100k
220p
0.01
2200p
2200p
1k
1k
2.2k
M5218AP
220p
220p
100k
100k
1k
220p
220p
1k1000p
100k
1k
1k
1000p
1k
1k
1k
33
33
20P
20P
10P
20P
5P
1k
1
0
0
0
p
100k
M5218AP
47
16V
4.7k
47
16V
2SC1815YGR
HZS6B2
10k
6P
20P
BN1F4M
1000p
M5218AP
CXD9725M
CXD9725M
CXD9725M
22
25V
22
25V
220
16V
100 25V
47
35V
220 16V
1k
100 25V
100 25V
1k
220 16V
220
16V
100 25V
220
16V
100 25V
100
25V
220
16V
100
25V
220 16V
100 25V
CXD9725M
2SC3623A2SC3623A
6.8k 6.8k
BN1F4M
100
100k
220p
220p
2SC2785TP
-FEK
220
16V
100
25V
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
B1
B2
B3
B4
B5
B6
B7
B8
A
9
F-L
F
-L
C
C
SW
S
W
SR
S
R
SL
S
L
SBR
S
B
R
SBL
S
B
L
F-R
F
-
R
SL
S
L
S
R
SR
SW
S
W
C
C
F
-L
F-L
F-R
F
-
R
STOP
STOP
PW-RY
PW-RY
SUB.T
SUB.T
DATA
DATA
DATA
CLK
CLK
FUNC-LAT
FUNC-LAT
FUNC-LAT
FUN LAT SW
FUN LAT SW
F-LAT
F-LAT
F-LAT
CL
CL
CL
DA
DA
DA
SW1
SW2
SW3
SW4
FR
SUR
SP
HP
CLK
PRO
AA1
AA2
AA3
A
A
1
A
A
2
A
A
3
FNT-L
FNT-L
FNT-R
FNT-R
CC
CC
SSW
SSW
S-L
S-R
S-R
S-L
+15V
-15V
S-MUTE
PROTECTOR
HP-RY
FUNC-LAT
CLK
DATA
SOURCE-L
SOURCE-R
C
SR
SL
TUNER-R
TUNER-L
SP-B-RY
FUN LAT SW
PW-RY
STOP
V-SW1
V-SW2
V-SW3
V-SW4
SOURSE-L
SOURSE-R
C
SR
SL
FRONT-R
TUNER-R
TUNER-L
FRONT-L
+15V
-15V
FUN-LAT
DATA
SR
GND
SL
GND
GND
GND
GND
GND
C
SW
FRONT-R
FRONT-L
GND
FUN-LAT
DATA
CLK
-15V
+15V
VIDEO-R
VIDEO-L
GND
SUB.T
SUR-RY
+15V
-15V
GND
SUB.T
PW-RY
STOP
GND
GND
GND
GND
GND
GND
FR-RY
SW
LIMITER
GND
SW
GND
GND
GND
GND(RY)
+24V(RY)
NC
SBR
SBL
SW-RY
C/SB-RY
F-L
F-R
GND
DETECT
GND
+5V(D)
TUNER-L
TUNER-R
GND
CLK
(1/3)
ELECTRICAL
VOLUME
ELECTRICAL
VOLUME
ELECTRICAL
VOLUME
BUFFER
BUFFER
BUFFER
REGULATOR
+5V
BUFFER
VOLUME
ELECTRICAL
RELAY
DRIVE
MUTING CONTROL
MUTINGMUTINGMUTINGMUTINGMUTINGMUTINGMUTINGMUTING
LEVEL SHIFT
INVERTER
LEVEL SHIFT
RELAY
DRIVE
(Page 28)
(Page 40)
(Page 37)
(Page 43)
(Page 37)
(Page 31)
(Page 29)
(Page 51)
(Page 41)
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
6-22. SCHEMATIC DIAGRAM – MAIN Section (1/3) – • See page 55 for IC Block Diagram.
D411 C-9
D431 I-10
D461 C-9
D481 I-9
D511 D-9
D531 I-3
D561 C-9
D581 H-2
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location
D611 B-10
D631 I-7
D661 B-9
D681 I-5
D711 B-10
D731 G-10
D805 F-10
D807 F-9
D808 F-10
D810 D-6
D812 D-2
D814 E-9
D815 F-2
D816 D-2
D817 F-9
D818 E-2
D819 D-2
D820 D-2
D821 B-9
D822 B-9
D823 B-9
IC401 E-8
IC402 E-7
IC501 F-4
IC502 F-3
IC601 F-8
IC602 F-7
IC651 F-6
IC652 F-5
IC804 D-4
IC805 D-3
Q401 C-4
Q402 J-11
Q403 J-12
Q431 J-11
Q432 I-10
Q433 I-10
Q434 I-11
Q451 C-4
Q452 J-9
Q453 J-10
Q481 J-9
Q482 I-8
Q483 I-9
Q484 I-9
Q501 B-4
Q502 J-4
Q503 J-5
Q531 J-4
Q532 I-3
Q533 I-4
Q534 I-4
Q551 B-4
Q552 J-2
Q553 J-3
Q581 J-2
Q582 H-2
Q583 H-2
Q584 I-2
Q601 C-4
Q602 J-7
Q603 J-8
Q631 J-8
Q632 I-6
Q633 I-7
Q634 I-8
Q651 B-4
Q652 J-5
Q653 J-6
Q681 J-6
Q682 I-5
Q683 I-5
Q684 I-6
Q701 B-5
Q732 G-11
Q751 C-4
Q802 F-9
Q803 F-10
Q805 F-10
Q807 D-8
Q808 B-8
Q809 B-8
Q810 E-3
Q811 B-12
Q813 E-2
Q822 B-9
Q823 D-8
Q824 F-2
Q826 D-6

Sony STR-DB795 Specifications

General

Dimensions (WxDxH)	430 x 401 x 161 mm
Power requirements	230V, 50/60Hz
Supported radio bands	FM, MW
Radio Data System (RDS)	Yes
I/O ports	5.1 Analogue Input - 1.0 Audio Input - 3.0 Audio Input Front - 1 AV, S-Video Audio Output - 1.0 Control A1 / A1 II Digital Input: coaxial - 1.0 Digital Input: optical - 4.0 Digital Output: optical - 1.0 Headphone Output Monitor Output (Picture): FBAS - 1.0 Monitor Output (Picture): S-Video - 1.0 Phono Input Speaker Selector A S-Video Input - 4.0 S-Video Output - 1.0 Video Input - 5.0 Video Output - 2.0
Connectivity technology	Wired
Frequency range	20 - 20000 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	290 W

Weight and Dimensions

Weight	12500 g