Sony SDP-EP70 Service Manual page 20

Digital surround processor
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– CONTROL SECTION –
DIGITAL SIGNAL PROCESSOR
SDI1
DATA
56
SCKR
51
WSR
55
SDI0
57
MEMORY
A
D/A
PLL
SECTION
(Page 17)
27
BCKO
LRCKO
SCKR
K
WSR
SDI0
DECODER
GPIO0
SECTION
(Page 22)
DIRDAT
68
DIRDAT
(Page 17)
DIWDAT
69
DIWDAT
DIRLAT
70
DIRLAT
D/A
E
SECTION
DIRCLK
71
DIRCLK
DIRERR
72
DIRERR
(Page 17)
DIRRST
D/A
DSELA1
74
DSELA1
D
SECTION
DSELA0
75
DSELA0
(Page 20)
DOLBY
77
REF-RES
AC. RST
G
AC-3
MUTO
76
RF-ERR
SECTION
RESET
1
RESET
POWER
H
STOP
80 STOP
SECTION
(Page 25)
2•3
RESET
DECODER
I
TX
78
TXD1
SECTION
79
RXD1
RX
X201
(Page 21)
16MHz
09
IC424
47
57
SDO0
SDI0
SDI1
SDO1
46
56
SCKT
SCKR
49
51
AUDIO
WST
WSR
50
55
I/F
SCKT
49
WST
50
GPIO0
DIGITAL SIGNAL
76
MEMORY
PROCESSOR
HOST
PLL
I/F
26
35 41 42 43
36
27
EEP ROM
IC202
6
5
41 40
28
27
26
39
15 16
SYSTEM CONTROL
IC201
17
18 19
22 - 20
11
9
13
10
1
5
11 - 9
Y
A0 - A2
OUT
SELECT SWITCH
30
29 5 4
SIRCS
IC254,255
RECEIVER
IC256
D0
D7
DOUT
3
4 - 1•15 - 12
26 - 17•16 - 7
KEY ARRY
ROTARY
ENCODER
FLUORESCENT INDICATOR TUBE
– 23 –
DIGITAL SIGNAL PROCESSOR
IC423
47
SDO0
SDO2
45
SDO1
46
AUDIO
I/F
DIGITAL SIGNAL
PROCESSOR
MEMORY
I/F
HOST
I/F
MD0
MD7
26
35 41 42 43
36
76
77 78 80
71•69 - 67•65 - 62
24 29
31
13 - 15•17 - 21
D0
D7
48 46 44 43 42
45 31
25
30
23 24
FL DRIVER
IC251, 252
34
24
37
26
35
29
DI
1 - 20•41 - 56
FROM
F
FL251
POWER TRANSFORMER
DA0
MA15
25 - 22•20 - 18•16•14 - 11•7•5 - 3
12 - 5•26•27•23•25•4•28•3•2
ANADIG
A0
A15
SRCINI
S RAM
DF-DAT
IC422
DF-CLK
DF-LAT
DF-INI
DA-LAT
DA-CLK
DA-DAT
LR+8DB
62
+8DB SWITCH
SS+8DB
64
Q617, 618, 621,
622,625,626
CS+8DB
66
CONTROL
LR+4DB
63
+4DB SWITCH
SWITCH
SS+4DB
65
Q619, 620, 623,
Q601 - 616
624,627,628
CS+4DB
67
MUT
61
RY-OFF
60
VOLUME MOTOR DRIVE
RV251
IC253
• Signal path
3
8
M
DRIVER
7
2
LED DRIVE
Q251
MASTER VOLUME
– 24 –
SDP-EP70/EP90ES
SOA
B
SOB
SOC
D/A
SECTION
(Page 17)
EXTAL
50
ANADIG
51
SRCINI
52
DF-DAT
53
DF-CLK
54
DF-LAT
55
DF-INI
57
DA-LAT
58
DA-CLK
59
DA-DAT
F
D/A
F. 8DB
SECTION
R. 8DB
(Page 17)
C/S. 8DB
F. 4DB
R. 4DB
C/S. 4DB
MUT
RY-OFF
:Digital in

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