Sony HT-DDW790 / HT-DDW795 / STR-K790 Service Manual ▷ View online
33
33
STR-K790
STR-K790
4-20. PRINTED WIRING BOARDS – POWER BOARD, DCAC BOARD, HEADPHONE BOARD –
:Uses unleaded solder.
• See page 13 for Circuit Boards Location.
1
3
1-872-422-
11
(11)
1-872-423-
11
(11)
1-872-421-
11
(11)
PHONES
IC2000
DCAC BOARD
HEADPHONE BOARD
POWER BOARD
B
MAIN BOARD
CNP733
(Page 25)
E
MAIN BOARD
CNP732
(Page 25)
L
DISPLAY
BOARD
CNP102
(Page 31)
J
MAIN
BOARD
CN701
(Page 25)
K
DISPLAY
BOARD
CN101
(Page 31)
DIMMER
SLEEP
2CH
MUSIC
MOVIE
A.F.D.
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
9
10
11
12
13
14
15
J2000
VIDEO 1 IN/
PORTABLE AUDIO IN/
AUTO CAL MIC
PORTABLE AUDIO IN/
AUTO CAL MIC
JW157
R135
R136
R137
R139
S114
S115
S116
S117
S118
S119
S152
CNP152
TP152
R138
JW121
JW122
JW123
JW124
JW125
JW126
TP2000
C2001
C2002
C2003
C2005
C2006
C2008
C2010
C2011
C2012
C2013
C2014
C2018
R2000
R2001
R2003
R2005
R2006
R2007
R2008
D2013
D2014
R2010
R2015
R2016
R2017
R2018
R2019
JW2201
JW2202
Q2001
Q2002
JW2004
JW2010
JW2011
JW2012
JW2000
JW2003
JW2013
JW2014
CN2001
J790
TP790
CNP790
1
4
34
34
STR-K790
STR-K790
4-21. SCHEMATIC DIAGRAM – POWER BOARD, DCAC BOARD, HEADPHONE BOARD –
DISPLAY
BOARD
CN101
(Page 32)
K
J
MAIN
BOARD
(4/4)
CN701
(Page 30)
B
MAIN BOARD
(1/4)
CNP733
(Page 27)
E
MAIN BOARD
(1/4)
CNP732
(Page 27)
L
DISPLAY
BOARD
CNP102
(Page 32)
7
-7
0
0
No mark : FM
0
0
0
0
7
7
7
0
0
J2000
VIDEO 1 IN/
PORTABLE AUDIO IN/
AUTO CAL MIC
VIDEO 1 IN/
PORTABLE AUDIO IN/
AUTO CAL MIC
1
2
3
8
7
6
5
4
3
2
1
NJM4565D
IC2000
0.022
C2011
0.022
C2012
50V
0.47
C2014
50V
1
C2002
50V
1
C2006
50V
1
C2013
0.033
C2003
0.033
C2010
0.1
C2018
100p
C2001
1k
R2000
1k
R2006
1.2k
R2018
2.2k
R2019
10k
R2007
10k
R2010
10k
R2003
10k
R2001
15k
R2016
33k
R2015
560k
R2008
1SS133T-72
D2013
1SS133T-72
D2014
56p
C2008
1M
R2005
33p
C2005
CL2002
CL2003
CL2004
CL2006
CL2007
2.2k
R2017
DTC144ESA-TP
DC CONTOROL
DC CONTOROL
Q2001
DTA114ESA-TP
Q2002
CL2001
CL2005
1
2
3
4
5
6
7
8
9
CN2001
9P
DCAC_OUT (CN102)
BLANK
DC-CONTROL
+7V (CNP732)
+/-7V GND (CNP732)
-7V (CNP732)
PORT_L (CNP733)
PORT_GND (CNP733)
PORT_R (CNP733)
JW2010
JW2011
JW2012
DCAC BOARD
R135
220
R136
330
R137
47 0
S114
S115
S116
S117
S118
S119
S152
R138
680
R139
1k
1
2
3
3P
CNP152
AD1
PW_SW
GND
POWER BOARD
J790
1
2
3
4
5
6
7
7
1
2
3
4
4P
CNP790
HP_DETECT
HP_R
HP_GND
HP_L
HEADPHONE BOARD
PHONES
DIMMER
SLEEP
2CH
MUSIC
MOVIE
A.F.D.
IC2000
AMP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
E
F
35
STR-K790
– DIGITAL Board –
IC1301 LC89056W-E
• IC Block Diagrams
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
CLK
39
XSEL
CE
DI
EMPHA
AUDIO
DISEL
SPDIF
DINO
DINI
DIN2
6
D.GND
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
LOCK
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
IC1401 PCM1803DBR
VINL 1
VINR 2
VERF1 3
VERF2 4
VCC 5
AGND 6
PDWN 7
BYPAS 8
FSYNC 9
LRCK 10
MODE1
20
MODE0
19
FMT1
18
FMT0
17
OSR
16
SCKI
15
VDD
14
DGCD
13
DOUT
12
BCK
11
Single-End
/Differential
Converter
5 th Order
Delta-Sigma
Modulator
5 th Order
Delta-Sigma
Modulator
Reference
Single-End
/Differential
Converter
× 1/64 (× 1/128)
Decimation
Filter
with
DC Cut Filter
Power Supply
Clock and Timing Control
Serial
Interface
Mode/
Format
Control
36
STR-K790
IC1452 PCM1602APT
IC1503 TC7WH157FU
1
2
3
4
8
7
6
5
Vcc
1Y
2B
2A
1A
1B
2Y
GND
SYSTEM
CLOCK
MANAGER
SYSTEM
CLOCK
FUNCTION
CONTROL
INTERFACE
SERIAL
INPUT
INTERFACE
4X/8X
OVER SAMPLING
DIGITAL
FILTER
WITH
FUNCTION
CONTROLLER
ENHANCED
MULTI-
LEVEL
DELTA-
SIGMA
MOJULATOR
ZERO DETECT
DAC
AND LPF
OUTPUT AMP
DAC
DAC
DAC
DAC
DAC
DAC
DAC
RST
SCKI
SCKO
BCK
TEST
VDD
DGND
DATA1
DATA2
DATA3
ZEROA
LRCK
37
38
39
40
42
43
44
45
46
47
48
41
ZERO1/GPO1
ZERO2/GPO2
ZERO3/GPO3
ZERO4/GPO4
ZERO5/GPO5
ZERO6/GPO6
NC
NC
VOUT6
VOUT5
VOUT4
VOUT3
1
2
3
4
5
6
7
8
9
10
11
12
VOUT2
VOUT1
VCOM
VOUT7
AGND5
VCC5
AGND6
VOUT8
AGND4
VCC4
AGND3
VCC3
13
14
15
16
17
18
19
20
21
22
23
24
ML
MC
MDI
MDO
ZERO8
DATA4
ZERO7
NC
VCC1
AGND1
VCC2
AGND2
36 35 34 33
31 30
29
28
27
26
25
32
AND LPF
OUTPUT AMP
AND LPF
OUTPUT AMP
AND LPF
OUTPUT AMP
AND LPF
OUTPUT AMP
AND LPF
OUTPUT AMP
AND LPF
OUTPUT AMP
AND LPF
OUTPUT AMP
IC400 M61542FP
– MAIN Board –
– DIGITAL Board –
2
1
55
53
56
54
16
17
3
4
5
6
5 Input selector
7
8
9
10
11
12
15
13
19
18
20 21 22 23 24
25 26 27 28
5 Input selector
45
29
30
32
31
Volume
14
Input ATT
(for ADC)
(for ADC)
Input ATT
(for ADC)
(for ADC)
36
35
33
34
Volume
37
38
40
39
Volume
GND
SRC
SLOUT
SLC
SLC
SLVIN
SLIGO
CIGO
CVIN
CVC
COUT
COUT
SWOUT
SWC
SWVIN
SWIGO
SLOUT
RECR2
RECR1
RECL1
LIGO
LVIN
LV
C
LOUT
ROUT
RVC
RVIN
RIGO
SRIGO
SRVIN
RECL2
INL5
INR5
INL4
INR4
INL3
INR3
INL2
INR2
INL1
INR1
ADIFL
ADIFR
GND
LIN
RIN
SLIN
SRIN
CIN
SWIN
GND
GND
D
ATA
CLOCK
DVDD
A
VCC
GND
AVEE
44
43
41
42
Volume
52
51
49
50
V
olume
46
48
47
V
olume
MCU I/F
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