Read Sony STR-DB925 Service Manual online
– 8 –
STR-DB925
3-2. BLOCK DIAGRAMS
– DSP SECTION –
– 7 –
DOLBY
SECTION
E
(Page 14)
POWER
SECTION
F
(Page 11)
DOLBY
SECTION
D
(Page 13)
INPUT
SECTION
G
(Page 10)
X1201
4MHz
10
8
12
3
5
1
37
78
SOD
HD0
HD7
35 HAO
36 XRST
24 XHDCS
23 HRDY
21 XHDWR
22 XHDRD
16 SCLK
SYSTEM CONTROL
IC1201(2/2)
75 SRDT
40 ERROR
13 XTALERR
85 FUNMUTE
14 ANALOG/DIGI
15 SCDIN
17 CS
20 RESET
18 SCDIO/OUT
19 INTREQ
93 XI
92 XO
SCLK
77
XLAT
76
A
B
C
SWDT
2
RESET
109
DIG-IN2
110
DIG-IN1
111
DIG-IN0
7
PD
6
CDTO
5
CDTI
4
CCLK
3
CS
48
EVSTB
49
EVDATA
50
EVCLK
84
ACMUTE
52
DISPDATA
55
DISPCLK
51
DISPMR
53
SLVDATA/REQ
90
RESET
101
RY-FRONT/A
102
RY-FRONT/B
103
RY-CENTER
104
RY-REAR
105
WOOFER-RY
106
RY-HP
107
RY-POWER
79
PROTEC
64
STOP
9
SINO
10
SOTO
89
MDO
87
MD2
119 SIC
SDTI1
SDTI2
SDTI3
SDTI3
SCLK
XLAT
SWDT
RESET
C
B
A
PD
CDTO
CDTI
CCLK
CS
VOL CE
VOL DATA
VOL CLK
AMUTE
UDATA
UCLOCK
UMREQ
USREQ
USREQ
URESET
SP/A RY
SP/B RY
C RY
SUR RY
W RY
W RY
HP RY
P RY
PROTECT
STOP
STOP
SINO
SOTO
MDO
MDO
MD2
FMUTE
118 SIB
117 SIA
113 BCKO
115 LRCKO
99 CLK1
2
SOA
3
SOB
4
SOC
5
SOD
HD0
HD7
AUDATA2
AUDATA1
AUDATA0
AUDATA1
AUDATA0
BCK
LRCK
SCLK
SRDT
ERROR
SCCLK
XTALERR
ANA/DIGI
SCDIN
CS
09
RESET
SCDOUT
INTREQ
14
XHDCS
26
XRST
15
HAO
10
74
70
17
STATIC RAM
IC1402
CE
WE
XWE
XCE
41
XHDRD
ED16 ED31
EA0 EA15
9
XHDWR
13
HRDY
DIGITAL SIGNAL
PROCESSOR
IC1401
16
I
20
23
I
25
7-10 13-16 29-32 35-38
5-1 44-42 27-24 21-18
53-60 62-69
76-80 83-90 92-94
• Signal path
: FM
: CD
: DIGITAL IN
: FM
: CD
: DIGITAL IN
25
I
32
BUFFER
Q1203
BUFFER
Q1206
INVERTER
IC1202
BUFFER
Q1207
BUFFER
Q1204,1205
SWITCH
Q1208
F MUTE
CONTROL
Q1201,1202
D0 D15
A0 A15
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