Read Sony SDP-EP70 / SDP-EP90ES Service Manual online
4-2. BLOCK DIAGRAMS
– DA SECTION –
– 17 –
– 18 –
SDP-EP70/EP90ES
3
OUT
DIGITAL
INPUT
IC306
5
DIGITAL 1
3
OUT
DIGITAL
INPUT
IC305
DIGITAL 2
4
3
OUT
DIGITAL
INPUT
IC304
DIGITAL 3
3
DAO
6
SELECTOR
IC302
7
D1
D2
D3
D0
14 2
A0 A1
Y
DSELA0
DSELA1
D
CONTROL
SECTION
C
DOLBY
AC-3
SECTION
3
2
INPUT 4
BUFFER
IC307
14
15
16
17
24
24
10
DIRCLK
DIRLAT
DIWDAT
DIRDAT
DIRERR
DIRRST
E
CONTROL
SECTION
2
1
23
3
DIGITAL AUDIO
INTERFACE RECEIVER
IC301
DIN2
DIN1
DATAO
E/D OUT
10
1
DIGITAL
OUTPUT
OUTPUT
IC303
VIN
B2
Y2
SELECTOR
IC404
(1/2)
9
A
DATA
CONTROL
SECTION
REC OUT
OUTPUT
B
CONTROL
SECTION
1
2
3
3
DATAI
LRCKI
BCKI
SAMPLING
RATE
CONVERTER
SAMPLING
RATE
COUNTER
7
FI128
DATAO
LRCKO
BCKO
13
10
INIT
XI
SAMPLING RATE
CONVERTER
IC401
25
24
27
28
IN1+
IN1-
IN2+
IN2-
IN2-
ECL
SW
VOLUME
CONTROL
IO1-
IO2+
IO2-
IO1+
4
5
2
1
1
DIGITAL VOLUME
IC410
VCNT
+
+
L.P.F.
L.P.F.
IC416
IC602
MIX
AMP
H.P.F.
BUFFER
IC607
12
15
D/A
CONVERTER
SHIFT
REGISTER
LEVEL
SHIFT
CK
2
1
3
DT
ST
D/A
CONVERTER
IC421
1
IC425
13
12
8
9
2
1
FILTER
F401
X401
49.152MHz
FILTER
F402
12
7
4
5
2
1
3
6
13
11
22
22
21
20
1
2
3
3
DATAI
SAMPLING
RATE
CONVERTER
DATAO
SAMPLING
RATE
COUNTER
FLAME
COUNTER
7
10
INIT
13
XI
SAMPLING RATE
CONVERTER
IC403
DATAI
LRCKI
BCKI
DIGITAL
FILTER
D/A
CONVERTER
R1(+)
R1(-)
R2(+)
R2(+)
R2(-)
21
23
18
16
MODE
CLOCK
GENERATOR
10
DIGITAL FILTER, D/A CONVERTER
IC405
FILTER
F404
DATAI
LRCKI
BCKI
DIGITAL
FILTER
D/A
CONVERTER
R1(+)
R1(-)
R2(+)
R2(+)
R2(-)
21
23
18
16
MODE
CLOCK
GENERATOR
DIGITAL FILTER, D/A CONVERTER
IC407
10
REAR
L-CH
ANADIG
EXTAL
SRCINI
DF-DAT
DF-CLK
DF-CLK
DF-LAT
DF-INI
ATT
SHIFT
LATCH
INIT
DA-LAT
DA-CLK
DA-DAT
ST
CK
DT
F. 8DB
R. 8DB
C/S.8DB
F. 4DB
R. 4DB
C/S. 4DB
MUT
RY-OFF
F
CONTROL
SECTION
MUT
RY-OFF
3
RY607
5
4
1
3
RY608
5
4
1
F
J601
FRONT
L
RY609
1
RY610
1
R
J601
REAR
L
8
7
6
7
8
6
REAR L-CH
R.8DB
R.4DB
RY611
1
RY612
1
C
J602
CENTER
7
8
6
7
8
6
CENTER
C/S.8DB
C/S.4DB
MUT
RY-OFF
MUT
RY-OFF
F
R
C
FRONT
L
REAR
L
CENTER
BYPASS
J603
OUT
PUT
PUT
F.8DB
F.4DB
AVOCK
LRCK
BCK
FS128
SCLK
XLAT
SWDT
SRDT
EROR
XMODE
SELECTOR
IC404 (2/2)
Y0
Y1
Y2
B0
B1
B3
S
A0 A1
BCK
LRCK
128FS
IC408
1
2
13
12
3
4
10
11
6
5
9
8
30
32
31
LRCKO
BCKO
40
39
38
45
34 35 36
37
SHIFT
LATCH
INIT
ATT
XIN
512FSO
45
512FSO
34 35 36
37
XIN
SHIFT
LATCH
INIT
ATT
30
32
31
40
39
38
FLAME
COUNTER
INPUT
J301
BCKO
LRCKO
SOA
SOB
SOC
CENTER
DATA
128FS
LRCK
BCK
128FS
LRCK
BCK
SUPER WOOFER
BUFFER
LRCKI
BCKI
FI128
R-CH, SUPER WOOFER is omitted.
REAR L-CH and CENTER part was omitted.
(Same as FRONT L-CH)
Signal path
:Digital in
:Digital out
:RF (AC-3)
REAR L-CH and CENTER part was omitted.
(Same as FRONT L-CH)
Signal path
:Digital in
:Digital out
:RF (AC-3)
•
•
•
•
09
(Page 24)
DECODER
SECTION
(Page 21)
(Page 23)
(Page 20)
(Page 23)
(Page 23)
(Page 24)
J
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