Read Sony HT-K25 / SA-WMS25 (serv.man2) Service Manual online
18
18
SA-WMS25
2-12. IC Block Diagrams
— DIGITAL AMP Board —
IC301, 304, 306, 307, 309, 311
CXD9702L
CROSS OVER
DELAY
FILTER
THERMAL
SHUT DOWN
UNDER
VOLTAGE
LOCK–OUT
HIGH SIDE
LEVEL SHIFT
PROTECTOR
CIRCUIT
PRE
DRIVER
LOW SIDE
LEVEL SHIFT
PRE
DRIVER
−
16
INB
15
GNDB
14
VDDB
20
SB
19
OUTB
13
VDRVB
12
VBOOTB
11
VBBB
VDRVB
VBBB
17
ENB
18
DIAGB
CROSS OVER
DELAY
THERMAL
SHUT DOWN
UNDER
VOLTAGE
LOCK–OUT
HIGH SIDE
LEVEL SHIFT
PROTECTOR
CIRCUIT
PRE
DRIVER
LOW SIDE
LEVEL SHIFT
PRE
DRIVER
6
INA
5
GNDA
4
VDDA
10
SA
9
OUTA
3
VDRVA
2
VBOOTA
1
VBBA
VDRVA
VBBA
7
ENA
8
DIAGA
VDRVA
VDRVB
VBBA
VBBB
VBBB
+
FILTER
+
−
−
VBBA
+
+
−
— DSP Board —
IC604 PCM1800-E/2K
5
6
7
8
9
10
11
12
4
3
2
1
20
19
18
17
24
23
22
21
13
14
15
16
LIN
V_REF_1
REFCOM
RSTB
BYPASS
FMT0
V_REF_2
RIN
AGND
VCC
C_PL
C_NR
C_NL
C_PR
FMT1
MODE0
MODE1
FSYNC
FSYNC
FSYNC
LRCK
BCK
DOUT
LRCK
LRCK
BCK
BCK
DOUT
DOUT
SYSCLK
DGND
VDD
SERIAL DATA
INTERFACE
MODE/FORMAT
CONTROL
INTERFACE
CLOCK/TIMING CONTROL
RESET/POWER CONTROL
RESET/POWER CONTROL
X1/64
DECIMATION
AND
HIGH PASS FILTER
SINGLE-END/
DIFFERENTIAL
CONVERTER
5TH-ORDER
DELTA-SIGMA
MODULATOR
SINGLE-END/
DIFFERENTIAL
CONVERTER
5TH-ORDER
DELTA-SIGMA
MODULATOR
REFERENCE
(+)
(-)
(+)
(-)
38
37
36
23
24
1
2 3
4
5
44
8 9 10
46
17
22
21
20
30
35
25
26
27
28
29
32
33
34
16
45
13
14
15
47
40
41
48
CL
39
XSEL
CE
DI
EMPHA
AUDIO
DISEL
DOUT
DIN0
DINI
DIN2
6
DGND
7
DVDD
11
AVDD
12
AGND
DOSEL0
R
VIN
LPF
CKSEL0
XSTATE
18 DGND
19 DVDD
XIN
XOUT
XMCK
DVDD
31
DGND
DO
CSFLAG
F0/P0/C0
F1/P1/C1
F2/P2/C2
VF/P3/C3
AUTO
BPSYNC
ERROR
DATAO
DOSEL1
CKOUT
BCK
LRCK
CKSEL1
MODE0
MODE1
42
DGND
43
DVDD
XMODE
TIMING
MICROCOMPUTER
INTERFACE
SAMPLING
FREQUENCY
C BIT
DETECT
PA/PB
DETECT
LOCK
DETECT
SYSTEM
RESET
MODE
SELECT
INPUT
CIRCUIT
DATA
DEMODULATOR
PLL
CLOCK
IC606 LC89056W-E
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