Read Sony STR-DB1070 / STR-DB870 Service Manual online
17
17
Ver 1.1
STR-DB870/DB1070
MODE CONTROL
INTERFACE
SERIAL INPUT
INTERFACE
MULT-FUNCTION
X8 OVER SAMPLING
DIGITAL FILTER
D/A
CONVERTER
LPF
AMP
LPF
AMP
LPF
AMP
LPF
AMP
MUTING
Q651
MUTING
Q601
MUTING
Q501
MUTING
Q451
MUTING
Q701
F
(Page 16)
SDO1,
SDO2,
SDO3
SDO2,
SDO3
G
(Page 16)
BCKO,
SCKOUT
SCKOUT
I
(Page 16)
LRCKO
H
(Page 16)
SDO4
K
(Page 16)
S MUTE
TRIM
LEVEL SHIFT
CIRCUIT
CENTER
SUB WOOFER
MULTI CH IN
CENTER
SURROUND BACK
MULTI CH IN1
E
(Page 16)
2NDL
J307
SUB WOOFER
(DB1070)
D
(Page 16)
CD IN
RELAY
DRIVE
Q815
RY805
MUTING
DRIVE
Q813
P
(Page 19)
CLK, DATA, LAT
R
(Page 19)
CLK, DATA, LAT
L
(Page 18)
L OUT
LEVEL SHIFT
CIRCUIT
O
(Page 18)
SL OUT
LEVEL SHIFT
CIRCUIT
J401
SUB WOOFER
J402
L
R
FRONT
L
R
SURROUND
LEVEL SHIFT
CIRCUIT
M
(Page 18)
C OUT
N
(Page 18)
SB OUT
R-CH
SR-CH
RY808
RY809
RY810
RY807
RELAY
DRIVE
Q825
RELAY
DRIVE
Q826
J305
J304
46
45
47
40
38
DATA2
DATA1
DATA3
BCK
SCKI
41
LRCK
BCKO
SCKOUT
SDO2
SDO1
SDO3
34
MDI
35
MC
36
ML
37
RST
33
MDO
ML
RST
MDO
14
12
10
9
VOUT1
VOUT3
VOUT5
VOUT6
2 DATA
1 BCK
16 SCK
3 LRCK
15
ML
14
MC
13
MD
7
VO L
D/A
CONVERTER
IC1202
BCKO
SCKOUT
AUDIO SELECT
IC101
26 5.1L
35 5.1SL
39 5.1C
31 5.1SW
4
6.0
27 6.1L
36 6.1SL
40 6.1C
3
6.1SB
32 6.1SW
41 2NDL
37
COUT
24
LOUT
6
SBOUT
30 D/ASW
25
34 D/ASL
29
SWOUT
33
SLOUT
21
CLK
22
DATA
23
LAT
38 D/AC
5
D/ASB
7
IN
5
OUT
3
4
TRIM
11
DATA
12
LAT
10
CLK
DATA
LAT
CLK
14
IN
16
OUT
18
TRIM
17
TRIM
11
DATA
12
LAT
10
CLK
7
IN
5
OUT
3
TRIM
4
TRIM
DATA
LAT
CLK
11
DATA
12
LAT
10
CLK
DATA
LAT
CLK
14
IN
16
18
17
OUT
TRIM
TRIM
14
IN
16
OUT
18
TRIM
17
TRIM
11
DATA
12
LAT
10
CLK
DATA
LAT
CLK
93 DA1LAT
92 DACINT
108 DA1DO
95 DACDI
94 DACCLK
119 DA2 LAT
ML
RST
MDO
MDI
MCI
120
CD DIRECT
4
WOOFER RY
8
PRE RY
SYSTEM
CONTROLLER
IC1703 (4/7)
CLK
DATA
LAT
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
: AUDIO IN (ANALOG)
: AUDUI IN (DIGITAL)
MDI
MCI
FRONT
L
(DE870)
MULTI CH IN2
(DE1070)
SURROUND
L
Q
(Page 16)
2CHL
28 2CHL
FRONT
L
SURROUND
L
LINE AMP
IC1221
LINE AMP
IC1241
LINE AMP
IC1261 (2/2)
LINE AMP
IC1261 (1/2)
11
VOUT4
13
VOUT2
R-CH
R-CH
D/AL
LINE AMP
IC1281
(DB1070)
(DB1070)
(DB1070)
(DB870)
BUFFER
IC602 (1/2)
BUFFER
IC402
BUFFER
IC602 (2/2)
BUFFER
IC502
BUFFER
IC702
ELECTRICAL
VOLUME
IC401
ELECTRICAL
VOLUME
IC601
ELECTRICAL
VOLUME
IC501
ELECTRICAL
VOLUME
IC701
(DB1070)
-2
-1
(DB870)
J701
J403
SUB WOOFER
CENTER
(DB1070)
(DB870)
SURROUND
BACK
PRE OUT
(DB1070)
L
R
D/A CONVERTER
IC1201
6-3.
BLOCK DIAGRAM – AUDIO CONTROL Section –
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