Sony STR-DB798 Service Manual

STR-DB798
3737
STR-DB798
R827
R830
R811R455
R405
IC805
IC804
D820
D816
D812
D819
D818
R820
R821
Q451Q601 Q401Q751Q551Q501
C816
C824 R833
R826
R782
R839
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
C519
R553
IC502
R828
Q824
D815
R815
CN405
C419
IC652
IC501
IC651
IC601
C568
C551
C817
C718
R702
C501
C701
R652
C668
C768
C651
C618
C601
C456
C468
C753
C418
C401
IC401
Q651Q701
R653
C652
C702
C518
C751
R961
C962
C960
CN420
C963
C961
R960
C818
C819
C815C814
R703
Q810
R701 R651 R501 R551 R751 R601 R401 R451
C455C405C605C655C555C505C604C705
Q813
Q826
Q811
IC954
IC955
1k
1k
10k2.2k
2.2k
TC74ACT08P
TC74ACT08P
1SS133
1SS133
1SS133
1SS133
1SS133
2.2k
10k
2SC3623A2SC3623A 2SC3623A2SC3623A2SC3623A2SC3623A
0.1
0.1 1M
1M
100k
10k
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
1000p
100k
M5218AP
4.7k
2SC1815YGR
HZS6B2
10k
20P
1000p
M5218AP
CXD9725M
CXD9725M
CXD9725M
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
100k
220p
220p
220
16V
100
25V
10
0.22
0.22
3P
1000
25V
1000
25V
10
22
50V
22
50V
47
25V
47
25V
100k
DTA124ESATP
22k 22k 22k 22k 22k 22k 22k 22k
0.0220.0220.0220.0220.0220.0220.0220.022
DTA124EASTP
2SC1740TP
-FEK
2SC1740TP
-FEK
79015
7815L
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
A9
A10
F-L
F-L
C
C
SW
S
W
SR
SR
SL
SL
SBR
S
BR
SBL
SBL
F-R
F-R
SL
SL
SR
SR
SW
SW 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
A1
A
A2
A
A3
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
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
+15V
-15V
O
G
I
OI
G
+15V REGULATOR
-15V REGULATOR
NC
6-24. SCHEMATIC DIAGRAM – MAIN BOARD (1/3) –
(Page 24)
(Page 35)
(Page 29)
(Page 25)
(Page 49)
(Page 35)
(Page 49)
(Page 39)
• See page 53 for IC Block Diagrams.
D411 D-13
D431 J-15
D461 D-13
D481 J-12
D511 E-13
D531 K-3
D561 E-13
D581 K-2
D611 B-14
• 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
D631 L-8
D661 B-13
D681 L-6
D711 B-14
D731 L-10
D805 I-14
D807 I-14
D808 I-14
D812 F-2
D814 G-13
D815 I-3
D816 F-2
D817 I-14
D818 F-2
D819 F-2
D820 F-2
D821 B-13
D822 B-13
D823 C-13
IC401 G-11
IC402 G-10
IC501 I-5
IC502 I-4
IC601 I-11
IC602 I-10
IC651 I-8
IC652 I-7
IC804 F-5
IC805 F-4
IC954 E-8
IC955 D-9
Q401 D-5
Q402 O-17
Q403 O-18
Q431 O-17
Q432 M-15
Q433 M-16
Q434 M-17
Q451 E-5
Q452 O-14
Q453 O-15
Q481 O-15
Q482 M-13
Q483 M-13
Q484 M-14
Q501 C-5
Q502 O-5
Q503 O-6
Q531 O-5
Q532 M-4
Q533 M-4
Q534 L-5
Q551 C-5
Q552 B-2
Q553 B-3
Q581 B-3
Q582 K-2
Q583 L-2
Q584 M-3
Q601 D-5
Q602 O-9
Q603 O-11
Q631 O-10
Q632 M-8
Q633 M-9
Q634 M-9
Q651 C-5
Q652 O-7
Q653 O-8
Q681 O-8
Q682 M-6
Q683 M-7
Q684 M-7
Q701 B-7
Q702 O-12
Q703 O-13
Q731 O-12
Q732 M-10
Q733 M-11
Q734 M-12
Q751 D-5
Q802 I-13
Q803 I-14
Q805 I-15
Q807 B-10
Q808 C-11
Q809 C-12
Q810 G-5
Q811 B-17
Q813 H-2
Q822 B-13
Q823 B-10
Q824 I-2
Q826 B-17
(Page 38)

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)