Read Sony STR-DB925 Service Manual online
– 13 –
– 14 –
STR-DB925
– DOLBY SECTION –
DSP
SECTION
D
(Page 8)
DSP
SECTION
E
(Page 7)
INPUT
SECTION
L-CH
L
LS
WOOFER
CENTER
LS
WOOFER
CENTER
SCLK
RESET
RESET
SCCLK
SCDIN
CS
INTREQ
CS
INTREQ
SCDOUT
SRDT
ERROR
ERROR
BCK
LRCK
BUFFER
IC1305(1/2)
ANA/DIGI
XTALERR
AUDATA2
AUDATA1
AUDATA0
C
(Page 9,
10)
8
6
7
2
1
AMP
IC1104(1/2)
AMP
IC1104(2/2)
7
6
44
43
42
27
4
OUT
OPI
TV/LD
IN
OPI
DVD
IN
OPI
MD/DAT
IN
OPT
MD/DAT
OUT
DVD
COAX
5
25
24
23
9
12
13
11
1
2
5
7
5
7
3
1
5
7
5
3
29
30
PD
CS
CCLK
CDTI
CDTO
SDTI1
SDTI2
SDTI3
SDTI3
SCLK
A
B
C
B
C
RESET
XLAT
SWDT
39
HPF
PD
CS
CCLK
CDT1
CDTO
CDT1
CDTO
AUDIO
INTERFACE
DAC
DAC
DAC
DAC
LPF
LPF
LPF
LPF
VR
CLOCK
GENERATOR
4
13
11
A
B
C
A
B
C
C
10 9
14
15
1
D4
D5
D0
D6
OUT 1
OUT 1
IC1001
IC1002
IC1003
J1001
INVERTER
IC1007(1/2)
INVERTER
IC1007(2/2)
ERROR CONT
IC1109
BUFFER
IC1006)
IC1006)
DIGITAL IN
SELECTOR
IC1005
DIGITAL AIDIO INTERFACE
IC1101
A/D,D/A CONVERTER
IC1103
INVERTER
IC1108(4/4)
AMP
IC1107
AMP
IC1106
AMP
IC1105(1/2)
AMP
IC1105(2/2)
DATA
CONTROL
IC1108(1/4)
D IN 3
5
3
09
2
6
6
6
4
5
9
6
3
13
1
BUFFER
IC1102(2/2)
DATA
CONTROL
IC1108(3/4)
10
4
9
8
10
9
13
X1301
49.152MHz
11
10
8
12
5
2
6
5
1
4
3
35
29
34
36
30
38
41
42
42
SWDT
XLAT
SCLK
SCLK
INTERFACE
47
18
11
X1101
24.576MHz
26
2
1
4
MULTIPLEX
LOCK
ERROR
DET
DATA
DEMODULATION
TIMING
GENERATOR
MUTE
OUTPUT
40
VR
VR
VR
39
36
40
41
42
43
44
21
22
24
30
STC
DIGITAL
AUDIO
INPUT
INTERFACE
PLL CLOCK
MANAGER
INVERTER
IC1305(2/2)
INVERTER
IC1102(1/2)
DATA
SELECTOR
IC1108(2/4)
CLOCK GENERATOR
IC1403
DOLBY DIGITAL
AUDIO DECODER
IC1301
FRAMER
SHIFTER,
INPUT
BUFFER
CONTROLLER
24 BIT
DSP
PROCESSING
PARALLEL
or
SERIAL
HOST
INTERFACE
OUTPUT
FORMATTER
COMPRESSED
DATA
INPUT
INTERFACE
22
26
25
27
29
28
11
CLK
5
7
6
18
20
19
PLL
HVCO
X'TAL
OSC
17
27
8-11 14-17
.
2
I
9
1D
I
8D
19
I
12
1Q
I
8Q
11
ADDRESS
DECODER
DECODER
IC1303
ADDRESS
DECODER
DECODER
IC1304
MEMORY
IC1302
2
I
9
1D
I
8D
19
I
12
1Q
I
8Q
A0
A15
D0
D7
CE
OE
13
I
15
17
17
I
21
.
.
.
12
I
3
29
I
25
23
23
10
13
DIGITAL
41
17
ADC
2CLK
CK
2QB
CLK
• R-CH is omitted
• Signal path
: FM
: CD
: DIGITAL IN
: DIGITAL OUT
• Signal path
: FM
: CD
: DIGITAL IN
: DIGITAL OUT
IC1004
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