Sony STR-DB790 Service Manual

STR-DA1000ES/DB790
3030
6-12. SCHEMATIC DIAGRAM – DIGITAL Board (3/4) – • See page 56 for Waveform.
CN1104
CN1105
FB1604
FB1605
CN1102
CN1106
CN1110
R1666
R1628
R1627
C1602
R1626
R1631
R1715
R1714
C1613
C1614
C1631
R1712
R1713
R1623
R1667
R1630
R1621
IC1604
R1687
C1603
R1635
C1620
FB1602
C1604
C1617
C1612
R1642
IC1904
FB1601
C1911
C1618
R1658
R1656
R1657R1654C1619
C1634
C1624
R1636
C1605
JR1688
R1676
R1677
R1678
R1679
R1639
R1640
R1641
R1720
R1691
R1668
D1603
R1669
R1721
R1602
R1690
R1600
R1638
R1698
R1699
R1674
R1673
R1308
R1664
R1665
R1305
R1304
R1672 R1671
D1601
R1622
R1629
R1633
R1637
R1603
R1604
R1605
R1606
R1607
R1608
R1609
R1610
R1611
R1612
R1613
R1614
R1615
R1616
R1617
R1618
R1619
R1632
R1620
R1601
C1640
R1716
R1625
R1682
C1601 C1312
R1719
R1718
R1717
C1229
C1629
C1628
C1626
C1627
C1659
C1608
C1658
C1611
C1610
C1609
R1643
R1694
R1644
R1645
R1646
R1647
R1648
R1649
R1695
R1675
R1704
R1703
R1702
R1701
R1693
R1692
R1650
R1651
R1652
R1653
R1680
R1681
C1638
C1639
IC1903
C1909
R1624
IC1602
C1635
C1606
L1901
C1908
C1906
D1905
D1906
IC1901
C1910
Q1607
JR1114
JR1112
JR1113
R1663R1662
R1634
IC1601
X1601
Q1602
Q1601
Q1603
R1655
FB1603
C1912
R1697
C1905
D1907
7P
27P
20P
5P
3P
10k
10k
10k
0.1
10k
10k
10k
10k
0.022
0.022
0.1
10k
10k
1k
1k
1k
1k
BR24C16
10k
0.1
10k
0.1
0.1
0.01
0.1
10k
2933
0.1
0.1
100
10k
10k10k0.1
0.1
0.1
10k
0.1
0
1k
1k
1k
1k
1k
1k
1k
10k
10k
5.6k
ISS352
4.7k
1k
100
1k
100
100
100
100
1k
1k
1k
100
100
47k
47k
10 10k
ISS352
100
100
100
100
1k
100
100
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
100
100
100
100
100
1k
220p
10k
10k
100k
0.1 0.1
10k
10k
10k
0.1
3p
3p
0.1
10
50V
0.01
0.01
0.01
0.01
0.01
0.01
1k
1k
1k
1k
1k
1k
1k
1k
10k
10k
10k
10k
10k
10k
47k
47k
10k
10k
10k
10k
1k
1k
0.01
0.01
2933
0.1
10k
S-80929CNMC-
G8ZT2G
0.1
47
16V
0
470 16V
470 16V
1SR154-400TE-25
1SR154-400TE-25
SI-3004KWF
220
10V
2SC2712
-YG
0
0
0
3.3k3.3k
47k
MB90478PF-G-148
-BND
16MHz
2SC2712-YG
RT1N141C-T
2SC2712-YG
10k
470
16V
0.1
1SR154-400TE-25
B1
B2
B3
B4
B5
B6
B7
B8
B9
D1
D2
D3
F1
F2
F3
F4
F5
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A
1
A3
A
4
A
5
A
6
A
7
A8
A
9
A
1
0
A11
A12
A13
A14
A15
A16
A
1
1
A
1
2
A
1
3
A
1
4
A
1
5
A16
B1
B2
B3
B4
B5
B6
B7
B8
B9
B
1
B
2
B3
B4
B5
B6
B
7
B
8
B
9
B10
B11
B12
B13
B14
B15
B16
B
1
0
B11
B12
B13
B14
B15
B16
C1
C2
C3
C4
C1
C1
C3
C4
A2
C
2
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
E
1
E
2
E
3
E
4
E
5
D
9
F
1
F
2
F
3
F
4
F
5
F6 F7
E
6
E
7
E6
E7
G1
G3
E
8
E
9
H1
H2
H3
H4
H5
H6
H7
H8
H9
H10
H
1
1
∗
D
IR
TUNER
DSP
V
O
L IC
/ TU
N
E
R
OPTICAL IN
EE
P
R
O
M
V-POWER
D-POWER
D.GND
PCM1604
S-MUTE
PROTECTOR
HP-RY
FUNC-LAT
CLK
DATA
SP-B-RY
FUN LAT SW
V-SW1
V-SW2
V-SW3
V-SW4
SUR-RY
FR-RY
LIMITER
VIDEO
+5V.FL
SW-RY
+8V
DETECT
+5V(D)
GND
NC
FL CLK
FL DATA
AD1
AD2
FUNC+
FUNC-
VOL+
VOL-
POWER
+5V
+3.3V
HP SW
MENU -
MENU +
-/+ +
-/+ -
SIRCS
SP SW
-28V
OPT GND
OPT GND
DISP GND
DISP GND
DISP GND
V3 OPT
FLASH1
FLASH2
VDD
GND
RESET
MD0
MD2
D
A
TA
O
G
P
9
B
ST
H
C
S
H
A
CN
X
R
S
T
P
M
V
S
S
D
A
TA
C
L
K
H
D
O
U
T
H
D
IN
H
C
L
K
V
C
C
5
A
N
A
/D
IG
AVCC
AVRH
AVSS
A/D0
A/D1
VSS
VERSION
STOP
R
D
S
C
L
O
CK
MD0
MD1
M
D
2
R
D
S
D
A
TA
S
IR
C
S
P
O
W
E
R
K
EY
D
IN
C
LK
PO
W
ER
R
E
LA
Y
PR
O
TE
C
TO
R
H
EA
D
PH
O
N
E R
E
LA
Y
R
E
A
R
R
EL
AY
S
TER
EO
TU
N
ED
M
U
TE
D
O
R
S
TX
X
1A
X
0A
VSS
X0
X1
VCC3
S
LA
TCH
XMODE
CLK
CE
DI
DO
ERROR
XSTATE
FLA
SH
2
H
P
D
ET
E
C
T
S
P
S
W
ITC
H
/F
LA
S
H
1
CKSEL1
LA
T
C
H
- VO
L
IC
SELECT1
SELECT2
SDA
SCL
S
W
1
S
W
2
S
W
3
S
W
4
FR
O
N
T
R
EL
AY
FUNC(A)
FUNC(B)
P
CM
1
748
L
AT
A
D
R
S
T
D
-P
O
W
ER
FUN LAT SW
RDS SIGNAL
MENU ENCODER A
MENU ENCODER B
LIMITTER
V-P
O
W
ER
+/-ENCODER A
+/-ENCODER B
VOL ENCODER A
VOL ENCODER B
R
S
T
C
LK
D
A
TA
O
U
T
D
AT
A
IN
L
A
T
LRCK SW
G
P1
2
A
1 O
U
T
A
1 IN
SP
B R
Y
S
W
R
EL
AY
DETECT
G
R
O
U
P
IN
G
S
W
PCM SW
C
/SB
R
Y
LED DRV
FL DRV/
DSP
DSP
(3/4)
-28V(FL)
NCCD
O
U
T
VS
S
VC
C
G
OI
+3.3V REGULATOR
RESET SIGNAL
GENERATOR
+3.3V(STBY)
FL STB
+5V.D(+8V)
C/SB-RY
EEPROM
(FOR CHECK)
(DB790:AEP,UK)
+3.3V/+2.5V
REGULATOR
VOUT2 VIN
G
N
D
V
C
V
O
U
T
1
+3.3V REGULATOR
G
OI
I/O BUFFER
0
2.2k
4.7k
(DA1000ES)
(DB790:SP,MY,TW,KR,AUS,CH)
R1697
∗
(DB790)
FL S
TB
SYSTEM CONTROLLER
MUTING SWITCH
MUTING SWITCH
MUTING SWITCH
(EXCEPT DB790:AEP,UK)
(EXCEPT DB790:AEP,UK)
(Page
29)
(Page 31)
(Page 28)
(Page 53)
(Page 51)
(Page 53)
(Page 41)
Ver 1.1
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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Sony STR-DB790 Specifications

General

Dimensions (WxDxH)	430 x 401 x 161 mm
Power requirements	230 V, 50/60 Hz
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
Power consumption (standby)	0.5 W
Power consumption (typical)	290 W

Weight and Dimensions

Weight	12500 g