Dolby Section - Sony STR-DB925 Service Manual

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